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Contents
##
# Notation Column 提供定义 JSON 注解列的方法。
module Unidom::Common::Concerns::NotationColumn
extend ActiveSupport::Concern
included do |includer|
scope :notation_column_where, ->(name, operator, value) do
operation = :like==operator ? { operator: 'ILIKE', value: "%#{value}%" } : { operator: operator.to_s, value: value }
where "#{table_name}.notation -> 'columns' ->> '#{name}' #{operation[:operator]} :value", value: operation[:value]
end
scope :notation_boolean_column_where, ->(name, value) do
where "(#{table_name}.notation -> 'columns' ->> '#{name}')::boolean = :value", value: (value ? true : false)
end
end
module ClassMethods
##
# 定义 JSON 类型的列。如：
# notation_column :given_name, :family_name
def notation_column(*names)
names.each do |name|
name = name.to_s
instance_eval do
define_method(name) do
notation.try(:[], 'columns').try(:[], name)
end
define_method("#{name}=") do |value|
notation['columns'] ||= {}
notation['columns'][name] = value
end
end
end
end
##
# 定义标注字段的 boolean 型的列。如：
# class YourModel < ApplicationRecord
# include Unidom::Common::Concerns::NotationColumn
# notation_boolean_column :still_alive
# end
# 则为 YourModel 的实例生成2个方法：still_alive? 和 still_alive=。
# model = YourModel.new still_alive: true
# model.still_alive? # true
# model.still_alive = false
# model.still_alive? # false
def notation_boolean_column(*names)
names.each do |name|
name = name.to_s
instance_eval do
define_method("#{name}?") do
notation.try(:[], 'columns').try(:[], name)
end
define_method("#{name}=") do |value|
notation['columns'] ||= {}
notation['columns'][name] = value
end
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems