module Motor::ApiQuery::Sort
Constants
- FIELD_PARSE_REGEXP
Public Instance Methods
build_arel_order(model, param)
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# File lib/motor/api_query/sort.rb, line 36 def build_arel_order(model, param) param.split(',').map do |field| direction, key = field.match(FIELD_PARSE_REGEXP).captures *path, field = key.split('.') reflection_model = path.reduce(model) do |acc, fragment| acc.reflections[fragment].klass end arel_column = reflection_model.arel_table[field] direction.present? ? arel_column.desc : arel_column.asc end end
build_join_params(_model, param)
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# File lib/motor/api_query/sort.rb, line 21 def build_join_params(_model, param) param.split(',').each_with_object({}) do |field, result| key = field[FIELD_PARSE_REGEXP, 2] *path, _ = key.split('.') path.reduce(result) do |acc, fragment| hash = {} acc[fragment] = hash hash end end end
call(rel, param)
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# File lib/motor/api_query/sort.rb, line 10 def call(rel, param) return rel if param.blank? arel_order = build_arel_order(rel.klass, param) join_params = build_join_params(rel.klass, param) rel = rel.left_joins(join_params) if join_params.present? rel.reorder(arel_order) end