I have two list of models which have relations.
我有两个有关系的模型列表。
A has many B
I loop through B
with {{#each}}
and generate a <table>
with it and every row has a <select>
where all A
s, that exist, are listed.
我使用{{#each}}遍历B并使用它生成
If an B
belongs to an A
it should be selected in the <select>
如果B属于A,则应在
Example:
例:
<table>
{{#each b in listofb}}
<tr><td>
<select>
{{#each a in listofa}}
{{#if b belongsto a}}
<option selected>a.someAttribute</option>
{{else}}
<option>a.someAttribute</option>
{{/if}}
{{/each}}
</select>
</td></tr>
{{/each}}
</table>
There is probably a way to do this with handlebar-helpers, but I don't know if I can use their output later with Ember controller actions.
可能有一种方法可以用车把助手做到这一点,但我不知道我以后是否可以使用他们的输出与Ember控制器动作。
1 个解决方案
#1
1
Use Ember.Select
http://emberjs.com/api/classes/Ember.Select.html
使用Ember.Select http://emberjs.com/api/classes/Ember.Select.html
{{view 'select' value=someControllerProperty}}
It helps you keep logic inside the controller.
它可以帮助您将逻辑保留在控制器内。
Now, in the controller you can react upon changes to the value selected with:
现在,在控制器中,您可以对所选值的更改作出反应:
processValueChange: function() {
// do stuff
}.property('someControllerProperty')
#1
1
Use Ember.Select
http://emberjs.com/api/classes/Ember.Select.html
使用Ember.Select http://emberjs.com/api/classes/Ember.Select.html
{{view 'select' value=someControllerProperty}}
It helps you keep logic inside the controller.
它可以帮助您将逻辑保留在控制器内。
Now, in the controller you can react upon changes to the value selected with:
现在,在控制器中,您可以对所选值的更改作出反应:
processValueChange: function() {
// do stuff
}.property('someControllerProperty')