我想从2台设备中获取2个url图像。我的模型结构:
比较:has_one:device1,has_one:device2
设备:has_one:image
图片:mount_uploader:image,ImageUploader
在查询中我想从查询中获取JSON数组比较
@compares = Compare.any_of({:device1_id.in => arr_device_id},{:device2_id.in => arr_device_id})
我尝试:(标题是attr_accessor)
Compare.any_of({:device1_id.in => arr_device_id},{:device2_id.in => arr_device_id}).only(:title => 'abc'). Result json is not contain field title
@compare.to_json(:include => [:device1,:device2]) => this include device1 and device2 but not include image of it.
@compare.to_json(:method => [:title => 'abc']) . Result json is not contain field title
任何解决方案?谢谢你的帮助:D
答案 0 :(得分:0)
您的意思是only(:title => "abc")
只选择字段“title”吗?
然后,解决方案可能只用(:title)替换它
如果你的意思只是标题是“abc”,那么用only(:title => "abc")
替换where(:title => "abc")
to_json应该可以工作。