首页 \ 问答 \ 有关belongs_to的条件(Conditions on belongs_to)

有关belongs_to的条件(Conditions on belongs_to)

我有这种叫做Request模型,它belongs_to User

class Request < ActiveRecord::Base    
  belongs_to :user, :conditions => "can_make_requests = t"
end

User模型在其架构中有一个名为can_make_requests的布尔字段,但出于某种原因,当我尝试时

aUser.requests.create

aUser具有can_make_requests作为f ,它仍然有效( aUser.requests.first返回新创建的请求)。 有谁知道这个问题是什么?


I have this model called Request, which belongs_to a User.

class Request < ActiveRecord::Base    
  belongs_to :user, :conditions => "can_make_requests = t"
end

The User model has a boolean field in its schema named can_make_requests, but for some reason, when I try

aUser.requests.create

when aUser has can_make_requests as f, it still works (aUser.requests.first returns the newly made request). Does anyone know what the issue is?


原文:https://stackoverflow.com/questions/6241437
更新时间:2022-04-01 16:04

最满意答案

EditText hex;
Button ok;
RelativeLayout baselayout;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    hex = (EditText)findViewById(R.id.hex);
    ok = (Button)findViewById(R.id.btn);
    baseLayout=(RelativeLayout)findViewById(R.id.layout);

    ok.setOnClickListener(new OnclickListener){
        @Override
        public void onClick(View v)
           {
            String colorString=hex.getText().toString();

           //Validate Color before setting
            try {
                Color filteredColor = Color.parseColor(colorString);
                baseLayout.setBackgroundColor(filteredColor);
                } 
           catch (IllegalArgumentException iae) {
                // This color string is not valid
                }            
           }
    }
}

EditText hex;
Button ok;
RelativeLayout baselayout;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    hex = (EditText)findViewById(R.id.hex);
    ok = (Button)findViewById(R.id.btn);
    baseLayout=(RelativeLayout)findViewById(R.id.layout);

    ok.setOnClickListener(new OnclickListener){
        @Override
        public void onClick(View v)
           {
            String colorString=hex.getText().toString();

           //Validate Color before setting
            try {
                Color filteredColor = Color.parseColor(colorString);
                baseLayout.setBackgroundColor(filteredColor);
                } 
           catch (IllegalArgumentException iae) {
                // This color string is not valid
                }            
           }
    }
}

相关问答

更多

相关文章

更多

最新问答

更多
  • python的访问器方法有哪些
  • 使用Zend Framework 2中的JOIN sql检索数据(Retrieve data using JOIN sql in Zend Framework 2)
  • 透明度错误IE11(Transparency bug IE11)
  • linux的基本操作命令。。。
  • 响应navi重叠h1和nav上的h1链接不起作用(Responsive navi overlaps h1 and navi links on h1 isn't working)
  • 在C中读取文件:“r”和“a +”标志的不同行为(Reading a File in C: different behavior for “r” and “a+” flags)
  • NFC提供什么样的带宽?(What Kind of Bandwidth does NFC Provide?)
  • 元素上的盒子阴影行为(box-shadow behaviour on elements)
  • Laravel检查是否存在记录(Laravel Checking If a Record Exists)
  • 设置base64图像的大小javascript - angularjs(set size of a base64 image javascript - angularjs)
  • 想学Linux 运维 深圳有哪个培训机构好一点
  • 为什么有时不需要在lambda中捕获一个常量变量?(Why is a const variable sometimes not required to be captured in a lambda?)
  • 在Framework 3.5中使用服务器标签<%=%>设置Visible属性(Set Visible property with server tag <%= %> in Framework 3.5)
  • AdoNetAppender中的log4net连接类型无效(log4net connection type invalid in AdoNetAppender)
  • 错误:发送后无法设置标题。(Error: Can't set headers after they are sent. authentication system)
  • 等待EC2实例重启(Wait for an EC2 instance to reboot)
  • 如何在红宝石中使用正则表达式?(How to do this in regex in ruby?)
  • 使用鼠标在OpenGL GLUT中绘制多边形(Draw a polygon in OpenGL GLUT with mouse)
  • 江民杀毒软件的KSysnon.sys模块是什么东西?
  • 处理器在传递到add_xpath()或add_value()时调用了什么顺序?(What order are processors called when passed into add_xpath() or add_value()?)
  • sp_updatestats是否导致SQL Server 2005中无法访问表?(Does sp_updatestats cause tables to be inaccessible in SQL Server 2005?)
  • 如何创建一个可以与持续运行的服务交互的CLI,类似于MySQL的shell?(How to create a CLI that can interact with a continuously running service, similar to MySQL's shell?)
  • AESGCM解密失败的MAC(AESGCM decryption failing with MAC)
  • SQL查询,其中字段不包含$ x(SQL Query Where Field DOES NOT Contain $x)
  • PerSession与PerCall(PerSession vs. PerCall)
  • C#:有两个构造函数的对象:如何限制哪些属性设置在一起?(C#: Object having two constructors: how to limit which properties are set together?)
  • 平衡一个精灵(Balancing a sprite)
  • n2cms Asp.net在“文件”菜单上给出错误(文件管理器)(n2cms Asp.net give error on Files menu (File Manager))
  • Zurb Foundation 4 - 嵌套网格对齐问题(Zurb Foundation 4 - Nested grid alignment issues)
  • 湖北京山哪里有修平板计算机的