Grid : features groupingsummary doesn't work extjs 6.5.0

Question

enter image description hereI am new with Extjs 6, and i am implementing a Grid with groupping summary features, i tried this two examples : http://examples.sencha.com/extjs/6.5.0/examples/classic/grid/group-summary-grid.html but doesn't work, i have this problem in my browzer console. Have someone an idea about this errors? enter image description here

GET localhost/Geomap2018/feature/groupingsummary.js?_dc=20170104130840 404 (Not Found)
Uncaught TypeError: c is not a constructor
this is the example which i tried: http://docs.sencha.com/extjs/6.2.0/classic/Ext.grid.feature.GroupingSummary.html

    Ext.define('TestResult', {
        extend: 'Ext.data.Model',
        fields: ['student', 'subject', {
            name: 'mark',
            type: 'int'
        }]
    });

    var grid = Ext.create('Ext.grid.Panel', {
        width: 200,
        height: 240,
        features: [{
            groupHeaderTpl: 'Subject: {name}',
            ftype: 'groupingsummary'
        }],
        store: {
            model: 'TestResult',
            groupField: 'subject',
            data: [{
                student: 'Student 1',
                subject: 'Math',
                mark: 84
            }, {
                student: 'Student 1',
                subject: 'Science',
                mark: 72
            }, {
                student: 'Student 2',
                subject: 'Math',
                mark: 96
            }, {
                student: 'Student 2',
                subject: 'Science',
                mark: 68
            }]
        },
        columns: [{
            dataIndex: 'student',
            text: 'Name',
            summaryType: 'count',
            summaryRenderer: function (value) {
                return Ext.String.format('{0} student{1}', value, value !== 1 ? 's' : '');
            }
        }, {
            dataIndex: 'mark',
            text: 'Mark',
            summaryType: 'average'
        }]
    });
    var win = Ext.create('Ext.window.Window', {
        width: 300,
        height: 200,
        items: [grid]
    });
    win.show();

Possible duplicate of [Can't resolve "c is not a constructor" error](https://stackoverflow.com/questions/8453516/cant-resolve-c-is-not-a-constructor-error) — Syed Waqas Bukhary, Feb 20 '18 at 15:36
This post didn't resolve my problem, there are no use of grouping summary and features Waqas Bukhary — Foulen, Feb 20 '18 at 15:41
Hm, try putting your errors as text, so that others can see too — Syed Waqas Bukhary, Feb 20 '18 at 15:43

Trevor Karjanis · Answer 1 · 2018-02-21T16:48:48.593

0

Ext.view.Table.constructFeatures calls Ext.create which in turn calls the following.

feature = Ext.create('feature.' + feature.ftype, feature);

It doesn't look like the feature configuration has any typos, so Ext.create will eventually call the class manager passing the resolved class for the feature.

cls = Manager.get(name);
...
return Manager.getInstantiator(args.length)(cls, args);

From the exception, "c" is "cls" - the feature class. Therefore, I think the class manager is not finding the feature class. Make sure you've added Ext.grid.feature.GroupingSummary to the requires declaration so that the class is loaded and available.

edited Feb 21 '18 at 16:48

answered Feb 20 '18 at 18:33

Trevor Karjanis

1,485
14
25

I tried to define feature adn giving a type : - var feature = Ext.create('Ext.grid.feature.GroupingSummary', { startCollapsed: true, ftype: 'grouping' }); But i found the same error, i can't identify the problem. – Foulen Feb 21 '18 at 08:32
What I mean is to ensure that the feature class is loaded before it is used by declaring a dependency on it. This is done using the requires configuration. I've updated my answer. – Trevor Karjanis Feb 21 '18 at 15:28
yes, i used require configuration for Ext.grid.* and Ext.grid.feature.GroupingSummary but it's still the same problem. :( – Foulen Feb 21 '18 at 15:44
It looks like it is missing a class. However, I am not sure which. – Trevor Karjanis Feb 23 '18 at 18:46

Grid : features groupingsummary doesn't work extjs 6.5.0

1 Answers1