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# File 'lib/acts_as_taggable_on/taggable/core.rb', line 84
def tagged_with(tags, options = {})
tag_list = ActsAsTaggableOn.default_parser.new(tags).parse
options = options.dup
empty_result = where('1 = 0')
return empty_result if tag_list.empty?
joins = []
conditions = []
having = []
select_clause = []
order_by = []
context = options.delete(:on)
owned_by = options.delete(:owned_by)
alias_base_name = undecorated_table_name.gsub('.', '_')
quote = ActsAsTaggableOn::Utils.using_postgresql? ? '"' : ''
if options.delete(:exclude)
if options.delete(:wild)
tags_conditions = tag_list.map { |t| sanitize_sql(["#{ActsAsTaggableOn::Tag.table_name}.name #{ActsAsTaggableOn::Utils.like_operator} ? ESCAPE '!'", "%#{ActsAsTaggableOn::Utils.escape_like(t)}%"]) }.join(' OR ')
else
tags_conditions = tag_list.map { |t| sanitize_sql(["#{ActsAsTaggableOn::Tag.table_name}.name #{ActsAsTaggableOn::Utils.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 = #{quote_value(owned_by.id, nil)}" +
" AND #{ActsAsTaggableOn::Tagging.table_name}.tagger_type = #{quote_value(owned_by.class.base_class.to_s, nil)}"
joins << " AND " + sanitize_sql(["#{ActsAsTaggableOn::Tagging.table_name}.created_at >= ?", options.delete(:start_at)]) if options[:start_at]
joins << " AND " + sanitize_sql(["#{ActsAsTaggableOn::Tagging.table_name}.created_at <= ?", options.delete(:end_at)]) if options[:end_at]
end
elsif any = options.delete(:any)
tags = if options.delete(:wild)
ActsAsTaggableOn::Tag.named_like_any(tag_list)
else
ActsAsTaggableOn::Tag.named_any(tag_list)
end
return empty_result if tags.length == 0
taggings_context = context ? "_#{context}" : ''
taggings_alias = adjust_taggings_alias(
"#{alias_base_name[0..4]}#{taggings_context[0..6]}_taggings_#{ActsAsTaggableOn::Utils.sha_prefix(tags.map(&:name).join('_'))}"
)
tagging_cond = "#{ActsAsTaggableOn::Tagging.table_name} #{taggings_alias}" +
" WHERE #{taggings_alias}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{taggings_alias}.taggable_type = #{quote_value(base_class.name, nil)}"
tagging_cond << " AND " + sanitize_sql(["#{taggings_alias}.created_at >= ?", options.delete(:start_at)]) if options[:start_at]
tagging_cond << " AND " + sanitize_sql(["#{taggings_alias}.created_at <= ?", options.delete(:end_at)]) if options[:end_at]
tagging_cond << " AND " + sanitize_sql(["#{taggings_alias}.context = ?", context.to_s]) if context
tag_ids = tags.map { |t| quote_value(t.id, nil) }.join(', ')
tagging_cond << " AND #{taggings_alias}.tag_id in (#{tag_ids})"
select_clause << " #{table_name}.*" unless context and tag_types.one?
if owned_by
tagging_cond << ' AND ' +
sanitize_sql([
"#{taggings_alias}.tagger_id = ? AND #{taggings_alias}.tagger_type = ?",
owned_by.id,
owned_by.class.base_class.to_s
])
end
conditions << "EXISTS (SELECT 1 FROM #{tagging_cond})"
if options.delete(:order_by_matching_tag_count)
order_by << "(SELECT count(*) FROM #{tagging_cond}) desc"
end
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_#{ActsAsTaggableOn::Utils.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 = #{quote_value(tag.id, nil)}"
tagging_join << " AND " + sanitize_sql(["#{taggings_alias}.created_at >= ?", options.delete(:start_at)]) if options[:start_at]
tagging_join << " AND " + sanitize_sql(["#{taggings_alias}.created_at <= ?", options.delete(:end_at)]) if options[:end_at]
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
group ||= [] if options.delete(:order_by_matching_tag_count)
select_clause << "#{table_name}.*, COUNT(#{taggings_alias}.tag_id) AS #{taggings_alias}_count"
group_columns = ActsAsTaggableOn::Utils.using_postgresql? ? grouped_column_names_for(self) : "#{table_name}.#{primary_key}"
group = group_columns
order_by << "#{taggings_alias}_count DESC"
elsif options.delete(:match_all)
taggings_alias, _ = adjust_taggings_alias("#{alias_base_name}_taggings_group"), "#{alias_base_name}_tags_group"
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)}"
joins << " AND " + sanitize_sql(["#{taggings_alias}.context = ?", context.to_s]) if context
joins << " AND " + sanitize_sql(["#{ActsAsTaggableOn::Tagging.table_name}.created_at >= ?", options.delete(:start_at)]) if options[:start_at]
joins << " AND " + sanitize_sql(["#{ActsAsTaggableOn::Tagging.table_name}.created_at <= ?", options.delete(:end_at)]) if options[:end_at]
group_columns = ActsAsTaggableOn::Utils.using_postgresql? ? grouped_column_names_for(self) : "#{table_name}.#{primary_key}"
group = group_columns
having = "COUNT(#{taggings_alias}.taggable_id) = #{tags.size}"
end
order_by << options[:order] if options[:order].present?
query = self
query = self.select(select_clause.join(',')) unless select_clause.empty?
query.joins(joins.join(' '))
.where(conditions.join(' AND '))
.group(group)
.having(having)
.order(order_by.join(', '))
.readonly(false)
end
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