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# This is a patch to address the issue in https://github.com/mbleigh/acts-as-taggable-on/issues/427 caused by
# https://github.com/rails/rails/commit/31a43ebc107fbd50e7e62567e5208a05909ec76c
# gem 'acts-as-taggable-on' has the fix included https://github.com/mbleigh/acts-as-taggable-on/commit/89bbed3864a9252276fb8dd7d535fce280454b90
# but not in the currently used version of gem ('2.4.1')
# With replacement of 'acts-as-taggable-on' gem this file will become obsolete
module ActsAsTaggableOn::Taggable
module Core
module ClassMethods
def tagged_with(tags, options = {})
tag_list = ActsAsTaggableOn::TagList.from(tags)
empty_result = where("1 = 0")
return empty_result if tag_list.empty?
joins = []
conditions = []
having = []
select_clause = []
context = options.delete(:on)
owned_by = options.delete(:owned_by)
alias_base_name = undecorated_table_name.gsub('.','_')
quote = ActsAsTaggableOn::Tag.using_postgresql? ? '"' : ''
if options.delete(:exclude)
if options.delete(:wild)
tags_conditions = tag_list.map { |t| sanitize_sql(["#{ActsAsTaggableOn::Tag.table_name}.name #{like_operator} ? ESCAPE '!'", "%#{escape_like(t)}%"]) }.join(" OR ")
else
tags_conditions = tag_list.map { |t| sanitize_sql(["#{ActsAsTaggableOn::Tag.table_name}.name #{like_operator} ?", t]) }.join(" OR ")
end
conditions << "#{table_name}.#{primary_key} NOT IN (SELECT #{ActsAsTaggableOn::Tagging.table_name}.taggable_id FROM #{ActsAsTaggableOn::Tagging.table_name} JOIN #{ActsAsTaggableOn::Tag.table_name} ON #{ActsAsTaggableOn::Tagging.table_name}.tag_id = #{ActsAsTaggableOn::Tag.table_name}.#{ActsAsTaggableOn::Tag.primary_key} AND (#{tags_conditions}) WHERE #{ActsAsTaggableOn::Tagging.table_name}.taggable_type = #{quote_value(base_class.name, nil)})"
if owned_by
joins << "JOIN #{ActsAsTaggableOn::Tagging.table_name}" +
" ON #{ActsAsTaggableOn::Tagging.table_name}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{ActsAsTaggableOn::Tagging.table_name}.taggable_type = #{quote_value(base_class.name, nil)}" +
" AND #{ActsAsTaggableOn::Tagging.table_name}.tagger_id = #{owned_by.id}" +
" AND #{ActsAsTaggableOn::Tagging.table_name}.tagger_type = #{quote_value(owned_by.class.base_class.to_s, nil)}"
end
elsif options.delete(:any)
# get tags, drop out if nothing returned (we need at least one)
tags =
if options.delete(:wild)
ActsAsTaggableOn::Tag.named_like_any(tag_list)
else
ActsAsTaggableOn::Tag.named_any(tag_list)
end
return empty_result unless tags.length > 0
# setup taggings alias so we can chain, ex: items_locations_taggings_awesome_cool_123
# avoid ambiguous column name
taggings_context = context ? "_#{context}" : ''
taggings_alias = adjust_taggings_alias(
"#{alias_base_name[0..4]}#{taggings_context[0..6]}_taggings_#{sha_prefix(tags.map(&:name).join('_'))}"
)
tagging_join = "JOIN #{ActsAsTaggableOn::Tagging.table_name} #{taggings_alias}" +
" ON #{taggings_alias}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{taggings_alias}.taggable_type = #{quote_value(base_class.name, nil)}"
tagging_join << " AND " + sanitize_sql(["#{taggings_alias}.context = ?", context.to_s]) if context
# don't need to sanitize sql, map all ids and join with OR logic
conditions << tags.map { |t| "#{taggings_alias}.tag_id = #{t.id}" }.join(" OR ")
select_clause = "DISTINCT #{table_name}.*" unless context and tag_types.one?
if owned_by
tagging_join << " AND " +
sanitize_sql([
"#{taggings_alias}.tagger_id = ? AND #{taggings_alias}.tagger_type = ?",
owned_by.id,
owned_by.class.base_class.to_s
])
end
joins << tagging_join
else
tags = ActsAsTaggableOn::Tag.named_any(tag_list)
return empty_result unless tags.length == tag_list.length
tags.each do |tag|
taggings_alias = adjust_taggings_alias("#{alias_base_name[0..11]}_taggings_#{sha_prefix(tag.name)}")
tagging_join = "JOIN #{ActsAsTaggableOn::Tagging.table_name} #{taggings_alias}" +
" ON #{taggings_alias}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{taggings_alias}.taggable_type = #{quote_value(base_class.name, nil)}" +
" AND #{taggings_alias}.tag_id = #{tag.id}"
tagging_join << " AND " + sanitize_sql(["#{taggings_alias}.context = ?", context.to_s]) if context
if owned_by
tagging_join << " AND " +
sanitize_sql([
"#{taggings_alias}.tagger_id = ? AND #{taggings_alias}.tagger_type = ?",
owned_by.id,
owned_by.class.base_class.to_s
])
end
joins << tagging_join
end
end
taggings_alias, tags_alias = adjust_taggings_alias("#{alias_base_name}_taggings_group"), "#{alias_base_name}_tags_group"
if options.delete(:match_all)
joins << "LEFT OUTER JOIN #{ActsAsTaggableOn::Tagging.table_name} #{taggings_alias}" +
" ON #{taggings_alias}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{taggings_alias}.taggable_type = #{quote_value(base_class.name, nil)}"
group_columns = ActsAsTaggableOn::Tag.using_postgresql? ? grouped_column_names_for(self) : "#{table_name}.#{primary_key}"
group = group_columns
having = "COUNT(#{taggings_alias}.taggable_id) = #{tags.size}"
end
select(select_clause) \
.joins(joins.join(" ")) \
.where(conditions.join(" AND ")) \
.group(group) \
.having(having) \
.order(options[:order]) \
.readonly(false)
end
end
end
end
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