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- # frozen_string_literal: true
- class Api::V1::Trends::TagsController < Api::BaseController
- before_action :set_tags
- after_action :insert_pagination_headers
- DEFAULT_TAGS_LIMIT = 10
- def index
- render json: @tags, each_serializer: REST::TagSerializer
- end
- private
- def enabled?
- Setting.trends
- end
- def set_tags
- @tags = begin
- if enabled?
- tags_from_trends.offset(offset_param).limit(limit_param(DEFAULT_TAGS_LIMIT))
- else
- []
- end
- end
- end
- def tags_from_trends
- Trends.tags.query.allowed
- end
- def insert_pagination_headers
- set_pagination_headers(next_path, prev_path)
- end
- def pagination_params(core_params)
- params.slice(:limit).permit(:limit).merge(core_params)
- end
- def next_path
- api_v1_trends_tags_url pagination_params(offset: offset_param + limit_param(DEFAULT_TAGS_LIMIT)) if records_continue?
- end
- def prev_path
- api_v1_trends_tags_url pagination_params(offset: offset_param - limit_param(DEFAULT_TAGS_LIMIT)) if offset_param > limit_param(DEFAULT_TAGS_LIMIT)
- end
- def offset_param
- params[:offset].to_i
- end
- def records_continue?
- @tags.size == limit_param(DEFAULT_TAGS_LIMIT)
- end
- end
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