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add placeholder stuff for af_sort_bayes

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This commit is contained in:
Andrew Dolgov 2015-06-17 10:36:11 +03:00
parent 35c12dc40a
commit 853cc128d6
13 changed files with 1417 additions and 0 deletions
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17
plugins/af_sort_bayes/init.js Normal file
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function bayesTrain(id, train_up) {
try {
var query = "backend.php?op=pluginhandler&plugin=af_sort_bayes&method=trainArticle&article_id=" + param_escape(id) +
"&train_up=" + train_up;
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
notify(transport.responseText);
} });
} catch (e) {
exception_error("showTrgmRelated", e);
}
}

111
plugins/af_sort_bayes/init.php Normal file
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<?php
class Af_Sort_Bayes extends Plugin {
private $host;
private $filters = array();
private $dbh;
function about() {
return array(1.0,
"Bayesian classifier for tt-rss (WIP)",
"fox");
}
function init($host) {
require_once __DIR__ . "/lib/class.naivebayesian.php";
require_once __DIR__ . "/lib/class.naivebayesianstorage.php";
$this->host = $host;
$this->dbh = Db::get();
$this->init_database();
$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
$host->add_hook($host::HOOK_PREFS_TAB, $this);
$host->add_hook($host::HOOK_ARTICLE_BUTTON, $this);
}
function trainArticle() {
$article_id = (int) $_REQUEST["article_id"];
$train_up = sql_bool_to_bool($_REQUEST["train_up"]);
print "FIXME: $article_id :: $train_up";
}
function get_js() {
return file_get_contents(__DIR__ . "/init.js");
}
function hook_article_button($line) {
return "<img src=\"plugins/af_sort_bayes/thumb_up.png\"
style=\"cursor : pointer\" style=\"cursor : pointer\"
onclick=\"bayesTrain(".$line["id"].", true)\"
class='tagsPic' title='".__('+1')."'>" .
"<img src=\"plugins/af_sort_bayes/thumb_down.png\"
style=\"cursor : pointer\" style=\"cursor : pointer\"
onclick=\"bayesTrain(".$line["id"].", false)\"
class='tagsPic' title='".__('-1')."'>";
}
function init_database() {
$prefix = "ttrss_plugin_af_sort_bayes";
/*$this->dbh->query("DROP TABLE IF EXISTS ${prefix}_references", false);
$this->dbh->query("DROP TABLE IF EXISTS ${prefix}_categories", false);
$this->dbh->query("DROP TABLE IF EXISTS ${prefix}_wordfreqs", false);*/
$this->dbh->query("BEGIN");
// PG only for the time being
$this->dbh->query("CREATE TABLE IF NOT EXISTS ${prefix}_categories (
id SERIAL NOT NULL PRIMARY KEY,
category varchar(100) NOT NULL DEFAULT '',
probability DOUBLE PRECISION NOT NULL DEFAULT '0',
owner_uid INTEGER NOT NULL REFERENCES ttrss_users(id) ON DELETE CASCADE,
word_count BIGINT NOT NULL DEFAULT '0')");
$this->dbh->query("CREATE TABLE IF NOT EXISTS ${prefix}_documents (
id SERIAL NOT NULL PRIMARY KEY,
document varchar(250) NOT NULL DEFAULT '',
category_id INTEGER NOT NULL REFERENCES ${prefix}_categories(id) ON DELETE CASCADE,
owner_uid INTEGER NOT NULL REFERENCES ttrss_users(id) ON DELETE CASCADE,
content text NOT NULL)");
$this->dbh->query("CREATE TABLE IF NOT EXISTS ${prefix}_wordfreqs (
word varchar(100) NOT NULL DEFAULT '',
category_id INTEGER NOT NULL REFERENCES ${prefix}_categories(id) ON DELETE CASCADE,
owner_uid INTEGER NOT NULL REFERENCES ttrss_users(id) ON DELETE CASCADE,
count BIGINT NOT NULL DEFAULT '0')");
$this->dbh->query("COMMIT");
}
function hook_prefs_tab($args) {
if ($args != "prefPrefs") return;
print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('af_sort_bayes')."\">";
//
print "</div>";
}
function hook_article_filter($article) {
$owner_uid = $article["owner_uid"];
return $article;
}
function api_version() {
return 2;
}
}
?>

278
plugins/af_sort_bayes/lib/COPYING Normal file
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@ -0,0 +1,278 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS

1
plugins/af_sort_bayes/lib/HISTORY Normal file
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2003/11/02 - Sortie de la version initiale 1.0

339
plugins/af_sort_bayes/lib/LICENSE Normal file
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
{description}
Copyright (C) {year} {fullname}
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
{signature of Ty Coon}, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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PHP Naive Bayesian Filter
============================================================
This library implements Naive Bayes classifier. Original Project developed by Loic d'Anterroches [loic xhtml.net]. This Library is very Usefull but is not Published now. so Salvage from [Internet Archive] and create Github Repositry.
see more information to Original Readme.txt and [Original Page].
And If there is a problem with the publication of this repository, I will close this repository.
[loic xhtml.net]: <http://www.xhtml.net/php/PHPNaiveBayesianFilter>
[Internet Archive]: <https://archive.org/>
[Original Page]: <https://web.archive.org/web/20111211215027/http://www.xhtml.net/php/PHPNaiveBayesianFilter>
Writing by Japanese
------------------------------------------------------------
このライブラリは単純ベイズ分類器を実装したライブラリです。元のプロジェクトはLoic d'Anterrochesが作成しています。非常に有益なライブラリですが、現在は公開されていないようです。そこでインターネットアーカイブからライブラリをサルベージし、Githubのレポジトリを作成しました。
より詳しい情報はオリジナルのReadme.txtを参照してください。
もし、このレポジトリの公開に問題があるようならば、このレポジトリを削除します。
extract Original Readme
------------------------------------------------------------
> This file is part of PHP Naive Bayesian Filter.
>
> The Initial Developer of the Original Code is
> Loic d'Anterroches [loic xhtml.net].
> Portions created by the Initial Developer are Copyright (C) 2003
> the Initial Developer. All Rights Reserved.
>
> PHP Naive Bayesian Filter is free software; you can redistribute it
> and/or modify it under the terms of the GNU General Public License as
> published by the Free Software Foundation; either version 2 of
> the License, or (at your option) any later version.
>
> PHP Naive Bayesian Filter is distributed in the hope that it will
> be useful, but WITHOUT ANY WARRANTY; without even the implied
> warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> See the GNU General Public License for more details.
>
> You should have received a copy of the GNU General Public License
> along with Foobar; if not, write to the Free Software
> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

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/*
***** BEGIN LICENSE BLOCK *****
This file is part of PHP Naive Bayesian Filter.
The Initial Developer of the Original Code is
Loic d'Anterroches [loic xhtml.net].
Portions created by the Initial Developer are Copyright (C) 2003
the Initial Developer. All Rights Reserved.
PHP Naive Bayesian Filter is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
PHP Naive Bayesian Filter is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***** END LICENSE BLOCK *****
*/
** Presentation **
Voici une implementation generale d'un filtre reposant sur le theoreme de Bayes.
L'application la plus connue est le filtre anti-spam. Vous pouvez aussi
l'utiliser pour faire de la classification automatique de documents.
Ce programme se base sur la version simplifiee du theoreme de Bayes comme
decrite par Ken Williams, ken@mathforum.org sur la page
http://mathforum.org/~ken/bayes/bayes.html au 31/10/2003.
Le systeme permet de maniere generale de faire la classification de documents
textes dans differentes categories. Si vous voulez l'utiliser pour une
classification de vos messages entre spam et non-spam, alors il vous faudra 2
categories, une "spam" et une "nonspam".
J'ai cree ce script car c'est une sujet a la mode en ce moment. Particulierement
pour filtrer les commentaires et les trackbacks dans les blogs. Le systeme
propose ici permet d'avoir plus que deux categories spam et non spam. Cela permet
donc theoriquement de l'utiliser pour la classification dans de multiples
categories.
Un petit script 'index.php' vous permet de tester le systeme, ensuite vous
pouvez inclure la classe dans vos scripts. Les fichiers class.naivebayesian.php
et class.naivebayesianstorage.php peuvent aussi etre utilises avec la licence
GNU Lesser General Public License Version 2.1 ou ulterieure.
** Fonctionnalites **
- Une classe avec la logique de base, une autre qui est l'interface de stockage.
- Stockage des donnees dans une base de données pour le moment MySQL mais
vous pouvez utiliser celle que vous voulez via l'interface de stockage.
- Apprentissage
- Desapprentissage
- Archivage automatique des documents "reference"
- L'interface de stockage par defaut utilise MySQL et repose sur deux classes
d'Olivier Meunier.
** Utilisation **
Regardez le code de index.php
Pour une bonne utilisation il vous faut creer une autre classe qui herite de
NaiveBayesian pour avoir votre propre fonction pour ignorer les mots qui ne
portent pas de sens particulier. Ceci n'est pas fait dans 'index.php'
class votreclass extends NaiveBayesian
{
function getIgnoreList()
{
return array('the', 'that', 'you', 'for', 'and');
}
}
** Des questions **
Pouvez me contacter par email a loic xhtml.net, ou venir sur http://www.xhtml.net/

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<?php
/*
***** BEGIN LICENSE BLOCK *****
This file is part of PHP Naive Bayesian Filter.
The Initial Developer of the Original Code is
Loic d'Anterroches [loic_at_xhtml.net].
Portions created by the Initial Developer are Copyright (C) 2003
the Initial Developer. All Rights Reserved.
Contributor(s):
See the source
PHP Naive Bayesian Filter is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
PHP Naive Bayesian Filter is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Alternatively, the contents of this file may be used under the terms of
the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
in which case the provisions of the LGPL are applicable instead
of those above.
***** END LICENSE BLOCK *****
*/
class NaiveBayesian {
/** min token length for it to be taken into consideration */
var $min_token_length = 3;
/** max token length for it to be taken into consideration */
var $max_token_length = 15;
/** list of token to ignore
@see getIgnoreList()
*/
var $ignore_list = array();
/** storage object
@see class NaiveBayesianStorage
*/
var $nbs = null;
function NaiveBayesian($nbs) {
$this->nbs = $nbs;
return true;
}
/** categorize a document.
Get list of categories in which the document can be categorized
with a score for each category.
@return array keys = category ids, values = scores
@param string document
*/
function categorize($document) {
$scores = array();
$categories = $this->nbs->getCategories();
$tokens = $this->_getTokens($document);
// calculate the score in each category
$total_words = 0;
$ncat = 0;
while (list($category, $data) = each($categories)) {
$total_words += $data['word_count'];
$ncat++;
}
reset($categories);
while (list($category, $data) = each($categories)) {
$scores[$category] = $data['probability'];
// small probability for a word not in the category
// maybe putting 1.0 as a 'no effect' word can also be good
$small_proba = 1.0 / ($data['word_count'] * 2);
reset($tokens);
while (list($token, $count) = each($tokens)) {
if ($this->nbs->wordExists($token)) {
$word = $this->nbs->getWord($token, $category);
if ($word['count']) {
$proba = $word['count'] / $data['word_count'];
}
else {
$proba = $small_proba;
}
$scores[$category] *= pow($proba, $count) * pow($total_words / $ncat, $count);
// pow($total_words/$ncat, $count) is here to avoid underflow.
}
}
}
return $this->_rescale($scores);
}
/** training against a document.
Set a document as being in a specific category. The document becomes a reference
and is saved in the table of references. After a set of training is done
the updateProbabilities() function must be run.
@see updateProbabilities()
@see untrain()
@return bool success
@param string document id, must be unique
@param string category_id the category id in which the document should be
@param string content of the document
*/
function train($doc_id, $category_id, $content) {
$ret = false;
// if this doc_id already trained, no trained
if (!$this->nbs->getReference($doc_id)) {
$tokens = $this->_getTokens($content);
while (list($token, $count) = each($tokens)) {
$this->nbs->updateWord($token, $count, $category_id);
}
$this->nbs->saveReference($doc_id, $category_id, $content);
$ret = true;
}
else {
$ret = false;
}
return $ret;
}
/** untraining of a document.
To remove just one document from the references.
@see updateProbabilities()
@see untrain()
@return bool success
@param string document id, must be unique
*/
function untrain($doc_id) {
$ref = $this->nbs->getReference($doc_id);
$tokens = $this->_getTokens($ref['content']);
while (list($token, $count) = each($tokens)) {
$this->nbs->removeWord($token, $count, $ref['category_id']);
}
$this->nbs->removeReference($doc_id);
return true;
}
/** rescale the results between 0 and 1.
@author Ken Williams, ken@mathforum.org
@see categorize()
@return array normalized scores (keys => category, values => scores)
@param array scores (keys => category, values => scores)
*/
function _rescale($scores) {
// Scale everything back to a reasonable area in
// logspace (near zero), un-loggify, and normalize
$total = 0.0;
$max = 0.0;
reset($scores);
while (list($cat, $score) = each($scores)) {
if ($score >= $max)
$max = $score;
}
reset($scores);
while (list($cat, $score) = each($scores)) {
$scores[$cat] = (float) exp($score - $max);
$total += (float) pow($scores[$cat], 2);
}
$total = (float) sqrt($total);
reset($scores);
while (list($cat, $score) = each($scores)) {
$scores[$cat] = (float) $scores[$cat] / $total;
}
reset($scores);
return $scores;
}
/** update the probabilities of the categories and word count.
This function must be run after a set of training
@see train()
@see untrain()
@return bool sucess
*/
function updateProbabilities() {
// this function is really only database manipulation
// that is why all is done in the NaiveBayesianStorage
return $this->nbs->updateProbabilities();
}
/** Get the list of token to ignore.
@return array ignore list
*/
function getIgnoreList() {
return array('the', 'that', 'you', 'for', 'and');
}
/** get the tokens from a string
@author James Seng. [http://james.seng.cc/] (based on his perl version)
@return array tokens
@param string the string to get the tokens from
*/
function _getTokens($string) {
$rawtokens = array();
$tokens = array();
$string = $this->_cleanString($string);
if (count(0 >= $this->ignore_list)) {
$this->ignore_list = $this->getIgnoreList();
}
$rawtokens = split("[^-_A-Za-z0-9]+", $string);
// remove some tokens
while (list(, $token) = each($rawtokens)) {
$token = trim($token);
if (!(('' == $token) || (strlen($token) < $this->min_token_length) || (strlen($token) > $this->max_token_length) || (preg_match('/^[0-9]+$/', $token)) || (in_array($token, $this->ignore_list)))) {
$tokens[$token]++;
}
}
return $tokens;
}
/** clean a string from the diacritics
@author Antoine Bajolet [phpdig_at_toiletoine.net]
@author SPIP [http://uzine.net/spip/]
@return string clean string
@param string string with accents
*/
function _cleanString($string) {
$diac = /* A */ chr(192) . chr(193) . chr(194) . chr(195) . chr(196) . chr(197) .
/* a */ chr(224) . chr(225) . chr(226) . chr(227) . chr(228) . chr(229) .
/* O */ chr(210) . chr(211) . chr(212) . chr(213) . chr(214) . chr(216) .
/* o */ chr(242) . chr(243) . chr(244) . chr(245) . chr(246) . chr(248) .
/* E */ chr(200) . chr(201) . chr(202) . chr(203) .
/* e */ chr(232) . chr(233) . chr(234) . chr(235) .
/* Cc */ chr(199) . chr(231) .
/* I */ chr(204) . chr(205) . chr(206) . chr(207) .
/* i */ chr(236) . chr(237) . chr(238) . chr(239) .
/* U */ chr(217) . chr(218) . chr(219) . chr(220) .
/* u */ chr(249) . chr(250) . chr(251) . chr(252) .
/* yNn */ chr(255) . chr(209) . chr(241);
return strtolower(strtr($string, $diac, 'AAAAAAaaaaaaOOOOOOooooooEEEEeeeeCcIIIIiiiiUUUUuuuuyNn'));
}
}

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<?php
class NaiveBayesianNgram extends NaiveBayesian {
var $N = 2;
/**
* add Parameter for ngram
*
* @param NaiveBayesianStorage $nbs
* @param ngram's N $n
* @return boolean
*/
function __construct($nbs, $n = 2) {
parent::__construct($nbs);
$this->N = $n;
return true;
}
/**
* override method for ngram
*
* @param string $string
* @return multiple
*/
function _getTokens($string) {
$tokens = array();
if (mb_strlen($string)) {
for ($i = 0; $i < mb_strlen($string) - $this->N; $i++) {
$wd = mb_substr($string, $i, $this->N);
if (mb_strlen($wd) == $this->N) {
if (!array_key_exists($wd, $tokens)) {
$tokens[$wd] = 0;
}
$tokens[$wd]++;
}
}
}
if (count($tokens)) {
// remove empty value
$tokens = array_filter($tokens);
}
return $tokens;
}
}

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<?php
/*
***** BEGIN LICENSE BLOCK *****
This file is part of PHP Naive Bayesian Filter.
The Initial Developer of the Original Code is
Loic d'Anterroches [loic_at_xhtml.net].
Portions created by the Initial Developer are Copyright (C) 2003
the Initial Developer. All Rights Reserved.
Contributor(s):
PHP Naive Bayesian Filter is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
PHP Naive Bayesian Filter is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Alternatively, the contents of this file may be used under the terms of
the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
in which case the provisions of the LGPL are applicable instead
of those above.
***** END LICENSE BLOCK *****
*/
/** Access to the storage of the data for the filter.
To avoid dependency with respect to any database, this class handle all the
access to the data storage. You can provide your own class as long as
all the methods are available. The current one rely on a MySQL database.
methods:
- array getCategories()
- bool wordExists(string $word)
- array getWord(string $word, string $categoryid)
*/
class NaiveBayesianStorage {
var $con = null;
var $owner_uid = null;
function NaiveBayesianStorage($owner_uid) {
$this->con = Db::get();
$this->owner_uid = $owner_uid;
return true;
}
/** get the list of categories with basic data.
@return array key = category ids, values = array(keys = 'probability', 'word_count')
*/
function getCategories() {
$categories = array();
$rs = $this->con->query('SELECT * FROM ttrss_plugin_af_sort_bayes_categories');
while ($this->con->fetch_assoc($rs)) {
$categories[$rs['category_id']] = array('probability' => $rs['probability'],
'word_count' => $rs['word_count']
);
}
return $categories;
}
/** see if the word is an already learnt word.
@return bool
@param string word
*/
function wordExists($word) {
$rs = $this->con->query("SELECT * FROM ttrss_plugin_af_sort_bayes_wordfreqs WHERE word='" . $this->con->escape_string($word) . "'");
return $this->con->num_rows($rs) != 0;
}
/** get details of a word in a category.
@return array ('count' => count)
@param string word
@param string category id
*/
function getWord($word, $category_id) {
$details = array();
$rs = $this->con->query("SELECT * FROM ttrss_plugin_af_sort_bayes_wordfreqs WHERE word='" . $this->con->escape_string($word) . "' AND category_id='" . $this->con->escape_string($category_id) . "'");
if ($this->con->num_rows($rs) == 0 ) {
$details['count'] = 0;
}
else {
$details['count'] = $rs['count'];
}
return $details;
}
/** update a word in a category.
If the word is new in this category it is added, else only the count is updated.
@return bool success
@param string word
@param int count
@paran string category id
*/
function updateWord($word, $count, $category_id) {
$oldword = $this->getWord($word, $category_id);
if (0 == $oldword['count']) {
return $this->con->execute("INSERT INTO ttrss_plugin_af_sort_bayes_wordfreqs (word, category_id, count) VALUES ('" . $this->con->escape_string($word) . "', '" . $this->con->escape_string($category_id) . "', '" . $this->con->escape_string((int) $count) . "')");
}
else {
return $this->con->execute("UPDATE ttrss_plugin_af_sort_bayes_wordfreqs SET count = count + " . (int) $count . " WHERE category_id = '" . $this->con->escape_string($category_id) . "' AND word = '" . $this->con->escape_string($word) . "'");
}
}
/** remove a word from a category.
@return bool success
@param string word
@param int count
@param string category id
*/
function removeWord($word, $count, $category_id) {
$oldword = $this->getWord($word, $category_id);
if (0 != $oldword['count'] && 0 >= ($oldword['count'] - $count)) {
return $this->con->execute("DELETE FROM ttrss_plugin_af_sort_bayes_wordfreqs WHERE word='" . $this->con->escape_string($word) . "' AND category_id='" . $this->con->escape_string($category_id) . "'");
}
else {
return $this->con->execute("UPDATE ttrss_plugin_af_sort_bayes_wordfreqs SET count = count - " . (int) $count . " WHERE category_id = '" . $this->con->escape_string($category_id) . "' AND word = '" . $this->con->escape_string($word) . "'");
}
}
/** update the probabilities of the categories and word count.
This function must be run after a set of training
@return bool sucess
*/
function updateProbabilities() {
// first update the word count of each category
$rs = $this->con->query("SELECT category_id, SUM(count) AS total FROM ttrss_plugin_af_sort_bayes_wordfreqs WHERE 1 GROUP BY category_id");
$total_words = 0;
while ($this->con->fetch_assoc($rs)) {
$total_words += $rs['total'];
}
$rs->moveStart();
if ($total_words == 0) {
$this->con->execute("UPDATE ttrss_plugin_af_sort_bayes_categories SET word_count=0, probability=0 WHERE 1");
return true;
}
while ($this->con->fetch_assoc($rs)) {
$proba = $rs['total'] / $total_words;
$this->con->execute("UPDATE ttrss_plugin_af_sort_bayes_categories SET word_count=" . (int) $rs['total'] . ", probability=" . $proba . " WHERE category_id = '" . $rs['category_id'] . "'");
}
return true;
}
/** save a reference in the database.
@return bool success
@param string reference if, must be unique
@param string category id
@param string content of the reference
*/
function saveReference($doc_id, $category_id, $content) {
return $this->con->execute("INSERT INTO ttrss_plugin_af_sort_bayes_references (id, category_id, content) VALUES ('" . $this->con->escape_string($doc_id) . "', '" . $this->con->escape_string($category_id) . "', '" . $this->con->escape_string($content) . "')");
}
/** get a reference from the database.
@return array reference( category_id => ...., content => ....)
@param string id
*/
function getReference($doc_id) {
$ref = array();
$rs = $this->con->query("SELECT * FROM ttrss_plugin_af_sort_bayes_references WHERE id='" . $this->con->escape_string($doc_id) . "'");
if ($this->con->num_rows($rs) == 0 ) {
return $ref;
}
$ref['category_id'] = $rs['category_id'];
$ref['content'] = $rs['content'];
$ref['id'] = $rs['id'];
return $ref;
}
/** remove a reference from the database
@return bool sucess
@param string reference id
*/
function removeReference($doc_id) {
return $this->con->execute("DELETE FROM ttrss_plugin_af_sort_bayes_references WHERE id='" . $this->con->escape_string($doc_id) . "'");
}
}

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