Postgres Json字段的Rails自定义验证

class YourModel < ApplicationRecord
  validate :validate_json_field

  def validate_json_field
    # 在这里编写验证逻辑
    # 可以使用Rails提供的validates方法来验证Json字段的内容
  end
end

class YourModel < ApplicationRecord
  validate :validate_json_field

  def validate_json_field
    validates :json_field, json: true
  end
end

class YourModel < ApplicationRecord
  validate :validate_json_field

  def validate_json_field
    json_data = JSON.parse(json_field)

    # 验证特定属性的值是否符合要求
    validates :name, presence: true, if: -> { json_data['name'].present? }
    validates :age, numericality: { greater_than: 0 }, if: -> { json_data['age'].present? }
  end
end

class YourModel < ApplicationRecord
  validate :validate_json_field

  def validate_json_field
    json_data = JSON.parse(json_field)

    validates :name, presence: true, if: -> { json_data['name'].present? }
    validates :age, numericality: { greater_than: 0 }, if: -> { json_data['age'].present? }

    # 返回验证失败的错误消息
    errors.add(:json_field, 'is invalid') if errors.any?
  end
end