我遇到了一个奇怪的问题。我有一个文章模板。在文章模板中,我调用{{render "category/new" category}}
。
但是,在通过操作保存新类别时,会使用错误的模型。当我将其更改为{{render "category/new" this}}
时,它会使用文章模型。当我将模型部件留空时,它也不起作用。
模板:
<script type="text/x-handlebars" data-template-name="article">
((...))
{{render "category/new" category}} // calls the popup for adding a new category
((...))
</script>
<!-- popups -->
<script type="text/x-handlebars" data-template-name="category/new">
<div class="popup">
<h2>Add new category</h2>
Name: {{input type="text" value=name}}<br />
Image: {{view App.UploadFile name="image" file=image }}<img {{bind-attr src=image}}><br />
Category-parent: {{input value=categoryRelation}}<br />
<button {{action 'saveCategory'}}>Save</button>
</div>
</script>
路由器:
// both routes have the render called, it uses the same template
this.resource('article', {path: '/article/:id'});
this.resource('article.new', {path: "/article/new"});
模型:
App.Category = DS.Model.extend({
name: DS.attr('string'),
image: DS.attr('string'),
categoryRelation: DS.belongsTo('category')
});
App.Article = DS.Model.extend({
name: DS.attr('string'),
category: DS.hasMany('category')
)};
控制器:
App.CategoryNewController = Ember.ObjectController.extend({
actions: {
saveCategory: function () {
console.log('CategoryNewController saveCategory action'); // gets called
console.log(this.get('model')); // the wrong one
this.get('model').save(); // saves all categories when using {{render "category/new" category}}
}
}
});
请注意,Category / new没有路由,因为{{render}}帮助器不需要它。请参阅:http://emberjs.com/guides/templates/rendering-with-helpers/#toc_specific(参见页面底部的表格)
答案 0 :(得分:2)
在文章中,category
是has-many
,因此您要将CategoryNewController
的模型设置为Category
的数组(除非您遗漏了一部分,当用户点击new或其他内容时,会创建一个Category
对象。)