Creating store from another store

[alex9311]

Hey all,

I'm trying to take a store that has letter grades ( "A", "B",etc..) and create a new store that has percentages (95,85,etc). I think I almost have it working but something isnt quite right. Here is my function:

        createStore:function(){
                //console.log("in the create store function");
                var store = Ext.data.StoreManager.lookup('Plot');
                var storeArray = [];
                Ext.each(store.getRange(), function (item, idx, a) {
                        //console.log(item.get('grade'));
                        storeArray.push([{"grade":item.get('grade'),"firstaction":item.get('firstaction')}]);
                });
                //console.log(storeArray);
                var newStore = Ext.create('Ext.data.Store',{
                        model: 'PL.model.NewPlot',
                        fields: [{
                                name: 'grade', convert: function(value,record){
                                        //console.log(value);
                                        //console.log(record);
                                        if (value == 'A'){
                                                return 95;
                                        }if (value == 'B'){
                                                return 85;
                                        }if (value == 'C'){
                                                return 75;
                                        }if (value == 'D'){
                                                return 65;
                                        }if (value == 'F'){
                                                return 55;
                                        }
                                }
                        },{
                                name: 'firstaction', mapping: 'firstaction'
                        }],
                        data: storeArray
                });
                return newStore;
        },

Note: Both stores have a 'grade' field and a 'firstaction' field. I just want to take the string grade field from the first store and make it an int field. The firstaction field should just copy over.

[evant]

You're adding an extra array:

storeArray.push([{"grade":item.get('grade'),"firstaction":item.get('firstaction')}]);

[alex9311]

Thanks! Once I started looking more into my array I realized I could just convert the strings to ints when I construct that array and map it directly. Here is the working code:

        createStore:function(){
                var store = Ext.data.StoreManager.lookup('Plot');
                var storeArray = [];
                Ext.each(store.getRange(), function (item, idx, a) {
                        var oldgrade = item.get('grade');
                        var newgrade = "";
                        if (oldgrade == 'A'){
                                newgrade = 95;
                        }if (oldgrade == 'B'){
                                newgrade = 85;
                        }if (oldgrade == 'C'){
                                newgrade = 75;
                        }if (oldgrade == 'D'){
                                newgrade = 65;
                        }if (oldgrade == 'F'){
                                newgrade = 55;
                        }
                        storeArray.push({"grade":newgrade,"firstaction":item.get('firstaction')});
                });
                var newStore = Ext.create('Ext.data.Store',{
                        model: 'PL.model.NewPlot',
                        fields: [{
                                name: 'grade', mapping: 'grade' 
                        },{
                                name: 'firstaction', mapping: 'firstaction'
                        }],
                        data: storeArray
                });
                return newStore;
        },

Of course any comments on efficiency and coding style are appreciated