models associations

[temp05]

hi.
i have 3 mysql tables:
---
a
id|name

b
id|name

a_b
a_id|b_id
---

i create 3 models:

Ext.define('a', {
    extend: 'Ext.data.Model',
    fields: ['id', 'name']
});
Ext.define('b', {
    extend: 'Ext.data.Model',
    fields: ['id', 'name']
});
Ext.define('a_b', {
    extend: 'Ext.data.Model',
    fields: ['a_id', 'b_id']
});

i need to get all "b" for model "a" defined in the model "a_b", and i need to get all "a" for model "b" defined in the model "a_b"

please help

[tobiu]

http://docs.sencha.com/ext-js/4-0/#/...anyAssociation

is what you are looking for.

[temp05]

I followed the instructions but I did not succeed.

now my models:

Ext.define('a', {
    extend: 'Ext.data.Model',
    fields: ['id', 'name'],
    associations: [
        {type: 'hasMany', model: 'a_b', name: 'bs', foreignKey: 'a_id',},
    ]
});
Ext.define('b', {
    extend: 'Ext.data.Model',
    fields: ['id', 'name'],
    associations: [
        {type: 'hasMany', model: 'a_b', name: 'as', foreignKey: 'b_id',},
    ]
});
Ext.define('a_b', {
    extend: 'Ext.data.Model',
    fields: ['a_id', 'b_id']
});

please help with code

[christocracy]

You seem to be doing fine.

Now you'll want to define a #proxy for each of your models.

Ext.define('a', {
			    extend: 'Ext.data.Model',
			    fields: ['id', 'name'],
				proxy: {
					type: 'ajax',
					url: '/a.json',
					reader: {
						type: 'json'
					}
				},
			    associations: [
			        {type: 'hasMany', model: 'a_b', name: 'bs', foreignKey: 'a_id',},
			    ]
			});
			Ext.define('b', {
				proxy: {
					type: 'ajax',
					url: '/b.json',
					reader: {
						type: 'json'
					}
				},
			    extend: 'Ext.data.Model',
			    fields: ['id', 'name'],
			    associations: [
			        {type: 'hasMany', model: 'a_b', name: 'as', foreignKey: 'b_id',},
			    ]
			});
			Ext.define('a_b', {
				proxy: {
					type: 'ajax',
					url: '/a_b.json',
					reader: {
						type: 'json'
					}
				},
			    extend: 'Ext.data.Model',
			    fields: ['a_id', 'b_id']
			});

[Berzzzebub]

Also remove commas at the ends of association strings. It's just wrong.