51ba56e8a3
Fix this: https://danbooru.donmai.us/uploads.json?search[media_assets][md5]=b83daa7f1ae7e4127b1befd32f71ba10 failing with an ActiveRecord::StatementInvalid error. The bug was that for a `has_many through: ...` association, like `has_many :media_assets, through: :upload_media_assets`, we weren't joining on the associated table properly so we ended up generating invalid SQL.
660 lines
20 KiB
Ruby
660 lines
20 KiB
Ruby
# frozen_string_literal: true
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module Searchable
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extend ActiveSupport::Concern
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def parameter_hash?(params)
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params.present? && params.respond_to?(:each_value)
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end
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def parameter_depth(params)
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return 0 if params.values.empty?
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1 + params.values.map { |v| parameter_hash?(v) ? parameter_depth(v) : 1 }.max
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end
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def negate_relation
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unscoped.where(all.where_clause.invert.ast)
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end
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# XXX hacky method to AND two relations together.
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# XXX Replace with ActiveRecord#and (cf https://github.com/rails/rails/pull/39328)
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def and_relation(relation)
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q = all
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q = q.where(relation.where_clause.ast) if relation.where_clause.present?
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q = q.joins(relation.joins_values + q.joins_values) if relation.joins_values.present?
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q = q.order(relation.order_values) if relation.order_values.present?
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q
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end
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# Search a table column by an Arel operator.
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#
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# @see https://github.com/rails/rails/blob/master/activerecord/lib/arel/predications.rb
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#
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# @example SELECT * FROM posts WHERE id <= 42
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# Post.where_operator(:id, :lteq, 42)
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#
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# @param field [String, Arel::Nodes::Node] the name of a table column, an
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# Arel node, or raw SQL
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# @param operator [Symbol] the name of an Arel::Predications method (:eq,
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# :gt, :lt, :between, :in, :matches (LIKE), etc).
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# @return ActiveRecord::Relation
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def where_operator(field, operator, *args, **options)
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arel = arel_node(field).send(operator, *args, **options)
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where(arel)
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end
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def where_not_operator(field, operator, *args, **options)
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arel = arel_node(field).send(operator, *args, **options)
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where.not(arel)
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end
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def where_array_operator(attr, operator, values)
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where_operator(attr, operator, sql_array(values))
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end
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def where_not_array_operator(attr, operator, values)
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where_not_operator(attr, operator, sql_array(values))
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end
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def where_like(attr, value)
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where_operator(attr, :matches, value.to_escaped_for_sql_like, nil, true)
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end
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def where_not_like(attr, value)
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where_operator(attr, :does_not_match, value.to_escaped_for_sql_like, nil, true)
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end
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def where_ilike(attr, value)
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where_operator(attr, :matches, value.to_escaped_for_sql_like, nil, false)
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end
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def where_not_ilike(attr, value)
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where_operator(attr, :does_not_match, value.to_escaped_for_sql_like, nil, false)
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end
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def where_iequals(attr, value)
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where_ilike(attr, value.escape_wildcards)
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end
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# https://www.postgresql.org/docs/current/static/functions-matching.html#FUNCTIONS-POSIX-REGEXP
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# "(?e)" means force use of ERE syntax; see sections 9.7.3.1 and 9.7.3.4.
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def where_regex(attr, value, flags: "e")
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where_operator(attr, :matches_regexp, "(?#{flags})" + value)
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end
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def where_not_regex(attr, value, flags: "e")
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where_operator(attr, :does_not_match_regexp, "(?#{flags})" + value)
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end
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def where_inet_matches(attr, value)
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if value.match?(/[, ]/)
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ips = value.split(/[, ]+/).map { |ip| Danbooru::IpAddress.new(ip).to_string }
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where("#{qualified_column_for(attr)} = ANY(ARRAY[?]::inet[])", ips)
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else
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ip = Danbooru::IpAddress.new(value)
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where("#{qualified_column_for(attr)} <<= ?", ip.to_string)
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end
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end
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# The && operator
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def where_array_includes_any(attr, values)
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where_array_operator(attr, :overlaps, values)
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end
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# The @> operator
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def where_array_includes_all(attr, values)
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where_array_operator(attr, :contains, values)
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end
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def where_array_includes_none(attr, values)
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where_not_array_operator(attr, :overlaps, values)
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end
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def where_array_includes_any_lower(attr, values)
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where("lower(#{qualified_column_for(attr)}::text)::text[] && ARRAY[?]", values.map(&:downcase))
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end
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def where_array_includes_all_lower(attr, values)
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where("lower(#{qualified_column_for(attr)}::text)::text[] @> ARRAY[?]", values.map(&:downcase))
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end
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# `~<<` is a custom Postgres operator. It's the `~` regex operator with reversed arguments.
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def where_any_in_array_matches_regex(attr, regex, flags: "e")
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where("? ~<< ANY(#{qualified_column_for(attr)})", "(?#{flags})#{regex}")
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end
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# The column should have a `array_to_tsvector(column) using gin` index for best performance.
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def where_any_in_array_starts_with(attr, value)
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where("array_to_tsvector(#{qualified_column_for(attr)}) @@ ?", value.to_escaped_for_tsquery + ":*")
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end
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def where_text_includes_lower(attr, values)
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where("lower(#{qualified_column_for(attr)}) IN (?)", values.map(&:downcase))
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end
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def where_array_count(attr, value)
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qualified_column = "cardinality(#{qualified_column_for(attr)})"
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range = PostQueryBuilder.new(nil).parse_range(value, :integer)
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where_operator(qualified_column, *range)
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end
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# @param attr [String] the name of the JSON field
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# @param hash [Hash] the hash of values it should contain
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def where_json_contains(attr, hash)
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# XXX Hack to transform strings to numbers. Needed to match numeric JSON
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# values when given string input values from an URL.
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hash = hash.transform_values do |value|
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if Integer(value, exception: false)
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value.to_i
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elsif Float(value, exception: false)
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value.to_f
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else
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value
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end
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end
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where("#{qualified_column_for(attr)} @> :hash", hash: hash.to_json)
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end
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# @param attr [String] the name of the JSON field
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# @param hash [String] the key it should contain
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def where_json_has_key(attr, key)
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where("#{qualified_column_for(attr)} ? :key", key: key)
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end
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# https://www.postgresql.org/docs/current/textsearch-controls.html#TEXTSEARCH-PARSING-DOCUMENTS
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# https://www.postgresql.org/docs/current/textsearch-controls.html#TEXTSEARCH-PARSING-QUERIES
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def where_tsvector_matches(columns, query)
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tsvectors = Array.wrap(columns).map do |column|
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to_tsvector("pg_catalog.english", arel_table[column])
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end.reduce(:concat)
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where("(#{tsvectors.to_sql}) @@ websearch_to_tsquery('pg_catalog.english', :query)", query: query)
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end
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def search_boolean_attribute(attr, params)
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if params[attr].present?
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boolean_attribute_matches(attr, params[attr])
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else
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all
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end
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end
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def search_inet_attribute(attr, params)
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if params[attr].present?
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where_inet_matches(attr, params[attr])
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else
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all
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end
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end
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# value: "5", ">5", "<5", ">=5", "<=5", "5..10", "5,6,7"
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def where_numeric_matches(attribute, value, type = :integer)
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range = PostQueryBuilder.new(nil).parse_range(value, type)
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where_operator(attribute, *range)
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end
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def boolean_attribute_matches(attribute, value)
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value = value.to_s
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if value.truthy?
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where(attribute => true)
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elsif value.falsy?
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where(attribute => false)
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else
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raise ArgumentError, "value must be truthy or falsy"
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end
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end
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def text_attribute_matches(columns, query)
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columns = Array.wrap(columns)
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if query.nil?
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all
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elsif query =~ /\*/
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columns.map do |column|
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where_ilike(column, query)
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end.reduce(:or)
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else
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where_tsvector_matches(columns, query)
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end
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end
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def search_attributes(params, *attributes)
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raise ArgumentError, "max parameter depth of 10 exceeded" if parameter_depth(params) > 10
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# This allows the hash keys to be either strings or symbols
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indifferent_params = params.try(:with_indifferent_access) || params.try(:to_unsafe_h)
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raise ArgumentError, "unable to process params" if indifferent_params.nil?
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attributes.reduce(all) do |relation, attribute|
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relation.search_attribute(attribute, indifferent_params, CurrentUser.user)
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end
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end
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def search_attribute(name, params, current_user)
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if has_attribute?(name)
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search_basic_attribute(name, params, current_user)
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elsif reflections.has_key?(name.to_s)
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search_association_attribute(name, params, current_user)
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else
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raise ArgumentError, "#{name} is not an attribute or association"
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end
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end
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def search_basic_attribute(name, params, current_user)
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column = column_for_attribute(name)
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type = column.type
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if column.try(:array?)
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subtype = type
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type = :array
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elsif defined_enums.has_key?(name.to_s)
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type = :enum
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end
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case type
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when :string, :text
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search_text_attribute(name, params)
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when :uuid
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search_uuid_attribute(name, params)
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when :boolean
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search_boolean_attribute(name, params)
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when :integer, :float, :datetime, :interval
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search_numeric_attribute(name, params, type: type)
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when :inet
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search_inet_attribute(name, params)
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when :enum
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search_enum_attribute(name, params)
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when :jsonb
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search_jsonb_attribute(name, params)
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when :array
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search_array_attribute(name, subtype, params)
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else
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raise NotImplementedError, "unhandled attribute type: #{name} (#{type})"
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end
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end
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def search_numeric_attribute(attr, params, key: attr, type: :integer)
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relation = all
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if params[key].present?
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relation = relation.where_numeric_matches(attr, params[key], type)
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end
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if params[:"#{key}_not"].present?
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relation = relation.where.not(id: relation.where_numeric_matches(attr, params[:"#{key}_not"], type))
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end
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if params[:"#{key}_eq"].present?
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relation = relation.where_operator(attr, :eq, params[:"#{key}_eq"])
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end
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if params[:"#{key}_not_eq"].present?
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relation = relation.where_operator(attr, :not_eq, params[:"#{key}_not_eq"])
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end
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if params[:"#{key}_gt"].present?
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relation = relation.where_operator(attr, :gt, params[:"#{key}_gt"])
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end
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if params[:"#{key}_gteq"].present?
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relation = relation.where_operator(attr, :gteq, params[:"#{key}_gteq"])
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end
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if params[:"#{key}_lt"].present?
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relation = relation.where_operator(attr, :lt, params[:"#{key}_lt"])
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end
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if params[:"#{key}_lteq"].present?
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relation = relation.where_operator(attr, :lteq, params[:"#{key}_lteq"])
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end
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relation
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end
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def search_text_attribute(attr, params)
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relation = all
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if params[attr].present?
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relation = relation.where(attr => params[attr])
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end
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if params[:"#{attr}_present"].present? && params[:"#{attr}_present"].truthy?
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relation = relation.where.not(attr => "")
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end
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if params[:"#{attr}_present"].present? && params[:"#{attr}_present"].falsy?
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relation = relation.where(attr => "")
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end
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if params[:"#{attr}_eq"].present?
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relation = relation.where(attr => params[:"#{attr}_eq"])
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end
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if params[:"#{attr}_not_eq"].present?
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relation = relation.where.not(attr => params[:"#{attr}_not_eq"])
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end
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if params[:"#{attr}_like"].present?
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relation = relation.where_like(attr, params[:"#{attr}_like"])
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end
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if params[:"#{attr}_ilike"].present?
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relation = relation.where_ilike(attr, params[:"#{attr}_ilike"])
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end
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if params[:"#{attr}_not_like"].present?
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relation = relation.where_not_like(attr, params[:"#{attr}_not_like"])
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end
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if params[:"#{attr}_not_ilike"].present?
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relation = relation.where_not_ilike(attr, params[:"#{attr}_not_ilike"])
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end
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if params[:"#{attr}_regex"].present?
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relation = relation.where_regex(attr, params[:"#{attr}_regex"])
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end
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if params[:"#{attr}_not_regex"].present?
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relation = relation.where_not_regex(attr, params[:"#{attr}_not_regex"])
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end
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if params[:"#{attr}_array"].present?
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relation = relation.where(attr => params[:"#{attr}_array"])
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end
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if params[:"#{attr}_comma"].present?
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relation = relation.where(attr => params[:"#{attr}_comma"].split(','))
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end
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if params[:"#{attr}_space"].present?
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relation = relation.where(attr => params[:"#{attr}_space"].split(' '))
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end
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if params[:"#{attr}_lower_array"].present?
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relation = relation.where_text_includes_lower(attr, params[:"#{attr}_lower_array"])
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end
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if params[:"#{attr}_lower_comma"].present?
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relation = relation.where_text_includes_lower(attr, params[:"#{attr}_lower_comma"].split(','))
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end
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if params[:"#{attr}_lower_space"].present?
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relation = relation.where_text_includes_lower(attr, params[:"#{attr}_lower_space"].split(' '))
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end
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relation
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end
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def search_uuid_attribute(attr, params)
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relation = all
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if params[attr].present?
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relation = relation.where(attr => params[attr])
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end
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if params[:"#{attr}_eq"].present?
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relation = relation.where(attr => params[:"#{attr}_eq"])
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end
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if params[:"#{attr}_not_eq"].present?
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relation = relation.where.not(attr => params[:"#{attr}_not_eq"])
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end
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relation
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end
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def search_association_attribute(attr, params, current_user)
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association = reflect_on_association(attr)
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relation = all
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if association.polymorphic?
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return search_polymorphic_attribute(attr, params, current_user)
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end
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if association.belongs_to?
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relation = relation.search_attribute(association.foreign_key, params, current_user)
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end
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model = association.klass
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if model == User && params["#{attr}_name"].present?
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name = params["#{attr}_name"]
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if name.include?("*")
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relation = relation.where(attr => User.search(name_matches: name).reorder(nil))
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else
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relation = relation.where(attr => User.find_by_name(name))
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end
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end
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if model == Post && params["#{attr}_tags_match"].present?
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relation = relation.where(attr => Post.user_tag_match(params["#{attr}_tags_match"], current_user).reorder(nil))
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end
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if params["has_#{attr}"].to_s.truthy? || params["has_#{attr}"].to_s.falsy?
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relation = relation.search_has_include(attr, params["has_#{attr}"].to_s.truthy?, model)
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end
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if parameter_hash?(params[attr])
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relation = relation.includes(attr).references(attr).where(attr => model.visible(current_user).search(params[attr]).reorder(nil))
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end
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relation
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end
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def search_polymorphic_attribute(attr, params, current_user)
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model_keys = ((model_types || []) & params.keys)
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# The user can only logically specify one model at a time, so more than that should return no results
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return none if model_keys.length > 1
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relation = all
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model_specified = false
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model_key = model_keys[0]
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if model_keys.length == 1 && parameter_hash?(params[model_key])
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# Returning none here for the same reason specified above
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return none if params["#{attr}_type"].present? && params["#{attr}_type"] != model_key
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model_specified = true
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model = Kernel.const_get(model_key)
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relation = relation.where(attr => model.visible(current_user).search(params[model_key]))
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end
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if params["#{attr}_id"].present?
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relation = relation.search_attribute("#{attr}_id", params, current_user)
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end
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if params["#{attr}_type"].present? && !model_specified
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relation = relation.search_attribute("#{attr}_type", params, current_user)
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end
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relation
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end
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def search_enum_attribute(name, params)
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relation = all
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if params[name].present?
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value = params[name].split(/[, ]+/).map(&:downcase)
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relation = relation.where(name => value)
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end
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if params[:"#{name}_not"].present?
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value = params[:"#{name}_not"].split(/[, ]+/).map(&:downcase)
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relation = relation.where.not(name => value)
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end
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relation = relation.search_numeric_attribute(name, params, key: :"#{name}_id")
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relation
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end
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def search_jsonb_attribute(name, params)
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relation = all
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if params[name].present?
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relation = relation.where_json_contains(:metadata, params[name])
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end
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if params["#{name}_has_key"]
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relation = relation.where_json_has_key(:metadata, params["#{name}_has_key"])
|
|
end
|
|
|
|
if params["has_#{name}"].to_s.truthy?
|
|
relation = relation.where.not(name => "{}")
|
|
elsif params["has_#{name}"].to_s.falsy?
|
|
relation = relation.where(name => "{}")
|
|
end
|
|
|
|
relation
|
|
end
|
|
|
|
def search_array_attribute(name, type, params)
|
|
relation = all
|
|
singular_name = name.to_s.singularize
|
|
|
|
if params[:"#{name}_include_any"]
|
|
items = params[:"#{name}_include_any"].to_s.scan(/[^[:space:]]+/)
|
|
items = items.map(&:to_i) if type == :integer
|
|
|
|
relation = relation.where_array_includes_any(name, items)
|
|
end
|
|
|
|
if params[:"#{name}_include_all"]
|
|
items = params[:"#{name}_include_all"].to_s.scan(/[^[:space:]]+/)
|
|
items = items.map(&:to_i) if type == :integer
|
|
|
|
relation = relation.where_array_includes_all(name, items)
|
|
end
|
|
|
|
if params[:"#{name}_include_any_array"]
|
|
relation = relation.where_array_includes_any(name, params[:"#{name}_include_any_array"])
|
|
end
|
|
|
|
if params[:"#{name}_include_all_array"]
|
|
relation = relation.where_array_includes_all(name, params[:"#{name}_include_all_array"])
|
|
end
|
|
|
|
if params[:"#{name}_include_any_lower"]
|
|
items = params[:"#{name}_include_any_lower"].to_s.scan(/[^[:space:]]+/)
|
|
items = items.map(&:to_i) if type == :integer
|
|
|
|
relation = relation.where_array_includes_any_lower(name, items)
|
|
end
|
|
|
|
if params[:"#{name}_include_all_lower"]
|
|
items = params[:"#{name}_include_all_lower"].to_s.scan(/[^[:space:]]+/)
|
|
items = items.map(&:to_i) if type == :integer
|
|
|
|
relation = relation.where_array_includes_all_lower(name, items)
|
|
end
|
|
|
|
if params[:"#{name}_include_any_lower_array"]
|
|
relation = relation.where_array_includes_any_lower(name, params[:"#{name}_include_any_lower_array"])
|
|
end
|
|
|
|
if params[:"#{name}_include_all_lower_array"]
|
|
relation = relation.where_array_includes_all_lower(name, params[:"#{name}_include_all_lower_array"])
|
|
end
|
|
|
|
if params[:"any_#{singular_name}_matches_regex"]
|
|
relation = relation.where_any_in_array_matches_regex(name, params[:"any_#{singular_name}_matches_regex"])
|
|
end
|
|
|
|
if params[:"#{singular_name}_count"]
|
|
relation = relation.where_array_count(name, params[:"#{singular_name}_count"])
|
|
end
|
|
|
|
relation
|
|
end
|
|
|
|
def search_has_include(name, exists, model)
|
|
if column_names.include?("#{name}_id")
|
|
return exists ? where.not("#{name}_id" => nil) : where("#{name}_id" => nil)
|
|
end
|
|
|
|
association = reflect_on_association(name)
|
|
primary_key = association.active_record_primary_key
|
|
foreign_key = association.foreign_key
|
|
# The belongs_to macro has its primary and foreign keys reversed
|
|
primary_key, foreign_key = foreign_key, primary_key if association.macro == :belongs_to
|
|
return all if primary_key.nil? || foreign_key.nil?
|
|
|
|
self_table = arel_table
|
|
model_table = model.arel_table
|
|
model_exists = model.model_restriction(model_table).where(model_table[foreign_key].eq(self_table[primary_key])).exists
|
|
if exists
|
|
attribute_restriction(name).where(model_exists)
|
|
else
|
|
attribute_restriction(name).where.not(model_exists)
|
|
end
|
|
end
|
|
|
|
def apply_default_order(params)
|
|
if params[:order] == "custom"
|
|
parse_ids = PostQueryBuilder.new(nil).parse_range(params[:id], :integer)
|
|
if parse_ids[0] == :in
|
|
return in_order_of(:id, parse_ids[1])
|
|
end
|
|
end
|
|
|
|
default_order
|
|
end
|
|
|
|
def default_order
|
|
order(id: :desc)
|
|
end
|
|
|
|
private
|
|
|
|
def qualified_column_for(attr)
|
|
"#{table_name}.#{column_for_attribute(attr).name}"
|
|
end
|
|
|
|
# Convert a column name or a raw SQL fragment to an Arel node.
|
|
#
|
|
# @param field [String, Arel::Nodes::Node] an Arel node, the name of a table
|
|
# column, or a raw SQL fragment
|
|
# @return Arel::Expressions the Arel node
|
|
def arel_node(field)
|
|
if field.is_a?(Arel::Nodes::Node)
|
|
field
|
|
elsif has_attribute?(field)
|
|
arel_table[field]
|
|
else
|
|
Arel.sql(field.to_s)
|
|
end
|
|
end
|
|
|
|
def sql_value(value)
|
|
if Arel.arel_node?(value)
|
|
value
|
|
elsif value.is_a?(String)
|
|
Arel::Nodes.build_quoted(value)
|
|
elsif value.is_a?(Symbol)
|
|
arel_table[value]
|
|
elsif value.is_a?(Array)
|
|
sql_array(value)
|
|
else
|
|
raise ArgumentError
|
|
end
|
|
end
|
|
|
|
# Convert a Ruby array to an SQL array.
|
|
#
|
|
# @param values [Array]
|
|
# @return Arel::Nodes::SqlLiteral
|
|
def sql_array(array)
|
|
Arel.sql(ActiveRecord::Base.sanitize_sql(["ARRAY[?]", array]))
|
|
end
|
|
|
|
# @example Tag.sql_function(:sum, Tag.arel_table[:post_count]).to_sql == "SUM(tags.post_count)"
|
|
def sql_function(name, *args)
|
|
Arel::Nodes::NamedFunction.new(name.to_s, args.map { |arg| sql_value(arg) })
|
|
end
|
|
|
|
# @example Note.to_tsvector("pg_catalog.english", :body).to_sql == "to_tsvector('pg_catalog.english', notes.body)"
|
|
# https://www.postgresql.org/docs/current/textsearch-controls.html#TEXTSEARCH-PARSING-DOCUMENTS
|
|
def to_tsvector(config, column)
|
|
sql_function(:to_tsvector, config, column)
|
|
end
|
|
end
|