隐藏多对多域的弹出列表视图中的“新建”按钮，如例：
Hiding the "Create" button from the popup list view of a many2many field. Example shown as below:
1. 在.py文件中定义many2many的field:
1. Define a many2many field in the python source file
'a_m2m_field': fields.many2many('test2', 'test1_test_rel', 'test1_id', 'test2_id', string='M2M Field'),2. 修改view_form.js，在大约4939行的位置，添加"var ctx = ..."至代码结尾的内容：
2. Modify the file view_form.js, insert the code from "var ctx = ..." to the end of code at about line 4939:
var $cbutton = self.$buttonpane.find(".oe_selectcreatepopup-search-create");
$cbutton.click(function() {
self.new_object();
});
var ctx = self.context.__contexts[0];
if(typeof(ctx) == "string"){
var ctxStr = ctx.replace("'", "\"", 'g');
var context = JSON.parse(ctxStr);
if(context.my_no_create && context.my_no_create != 0){
$cbutton.remove();
}
}3. 修改XML文件，添加context：
3. Modify the XML file to add the context:
<field name="a_m2m_field" context="{'my_no_create': 1}">
OpenERP-隐藏多对多域弹出列表视图的"新建"按钮（Hide the "Create" button from the popup list view of a many2many field）
原文：http://blog.csdn.net/poluoge/article/details/38392691