My simple data example with associations does not work. Why not?

[Marco Struck]

From my point of view I build the simplest way of model with associations in ExtJS.
Model: Post --hasOne--> User
What I did:

• Using a memory proxy
• Followed the rule: Proxy in Model
• Load a post object by Post.load(...).

But when I try to get the user object, it is not right loaded:
(Here the full source: http://jsfiddle.net/7XRw4/4/)

    Ext.define('Post', {
        extend: 'Ext.data.Model',
        fields: ['user_id', 'content'],
        hasOne: 'User',
        proxy: {
            type: 'memory',
            data: {
                posts: [
                    {id:1, user_id:1, content:'foo'},
                    {id:2, user_id:1, content:'bar'}
                ]
            },
            reader: {
                type: 'json',
                root: 'posts'
            }
        }
    });
    
    
    Ext.define('User', {
        extend: 'Ext.data.Model',
        fields: ['name'],
        proxy: {
            type: 'memory',
            data: {
                users: [
                    {id:1, name:'hans'},
                    {id:2, name:'klaus'}
                ]
            },
            reader: {
                type: 'json',
                root: 'users'
            }
        }
    });
    
    Ext.onReady(function() {
        console.log("Ext.onReady() invoked...");
    
        Post.load('1', {
            success: function(record, operation) {
                thePost = record;
    
                console.log('thePost:', thePost);
                theUser = thePost.getUser();
                console.log('theUser:', theUser);
                
                alert('The user name: ' + theUser.get('name'));
                // The user object will not be right loaded! Why?
            }
        });
        
    }); 

[sword-it]

Hi Marco,

You can simply put hasOne config under association config like-

Ext.define('Post', {
        extend: 'Ext.data.Model',
        fields: ['user_id', 'content'],
        associations: [{ type: 'hasOne', model: 'User' }],
        proxy: {
            type: 'memory',
            data: {
                posts: [
                    {id:1, user_id:1, content:'foo'},
                    {id:2, user_id:1, content:'bar'}
                ]
            },
            reader: {
                type: 'json',
                root: 'posts'
            }
        }
    });

For more info see - http://docs.sencha.com/ext-js/4-1/#!...ciation.HasOne

[Marco Struck]

Hi sword-it, thanks for the tip.
But it does not solve my problem.

Another hint?

Regards,
Marco

[Marco Struck]

Hey guys, that is all? Can not believe.
Marco

[Marco Struck]

Is this a vote generator?

[daniel.gallo]

Hi Marco,

When doing "getUser", this is asynchronous so requires a callback function to get at the user instance. For example (from the documentation here: http://docs.sencha.com/ext-js/4-1/#!/guide/data):

post.getUser(function(user) {
    console.log('Just got the user reference from the post: ' + user.get('name'))
});

Hope that helps.