6.30.15 - HOW CAN I MAKE THIS QUESTION BETTER AND MORE HELPFUL TO OTHERS? FEEDBACK WOULD BE HELPFUL. THANKS!
I am creating an ondemand grid using dojo's dgrid. I am having trouble connecting to the store. I can get the column headers to display but I can't get any data to display here is the code I'm using. Some data changed for confidentiality. Any assistance would be greatly appreciated. The Json is being pulled from a Django Rest Framework api.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Dgrid Test</title>
<link a ref
</head>
<body>
<div id="grid"></div>
<script src="/static/web/dojo/dojo.js"
data-dojo-config="async: true"></script>
<script>
require([
'dojo/_base/declare',
'dojo/data/ObjectStore',
'dojo/store/JsonRest',
'dojo/store/Memory',
'dgrid/OnDemandGrid',
'dojo/domReady!'], function (declare, ObjectStore, Memory, JsonRest, OnDemandGrid) {
var grid = new OnDemandGrid({
collection: new dojo.store.JsonRest({target:"/api/storeName/"}),
columns: {
id: 'ID',
column1: 'column1',
column2: 'column2',
column3: 'column3',
column4: 'column4',
column5:'column5',
column6:'column6',
column7:'column7',
column8: 'column8'
}
}, 'grid');
grid.startup();
});
</script>
UPDATE - dstore/Rest applied - still can't pull data.Now column headers don't display either...
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Dgrid Test</title>
</head>
<body>
<div id="grid"></div>
<script src="/static/web_ui/dojo/dojo.js"
data-dojo-config="async: true"></script>
<script>
require([
'dojo/_base/declare',
'dojo/dom',
'dojo/on',
'dstore/Rest',
'dgrid/OnDemandGrid',
'dojo/domReady!'
], function (declare, dom, on, Rest, OnDemandGrid) {
// Create an instance of OnDemandGrid referencing the store
var store = new Rest({ target:"/api/apiname/" });
});
var grid = new OnDemandGrid({
collection: store,
columns: {
column1: 'column1',
column2: 'column2',
column3: 'column3',
column4: 'column4',
column5:'column5',
column6:'column6',
column7:'column7',
column8: 'column8'
}
}, 'grid');
grid.startup();
UPDATE 6.2.15
Here is the revised code that I've been working on this morning. Here is the error coming up in Firebug: TypeError: transform(...) is null return transform(value, key).toString(); instrum...tion.js (line 20)
This really doesn't make any sense. I don't know if that error is keeping it from the data from actually displaying or not. No matter what I do, it won't display. Tomorrow will be two weeks working on this one thing. The joys of programming. :)
And here is the code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Dgrid Test</title>
</head>
<body>
<h1>Demo: Single-Query Mixin</h1>
<form id="queryForm">
<label for="lastField">Blank Blank contains:</label>
<input id="lastField" name="blank_type">
<button type="submit">Filter</button>
<button type="reset">Reset</button>
</form>
<div id="grid"></div>
<script src="/static/web_ui/dojo/dojo.js"
data-dojo-config="async: true"></script>
<script>
require([
'dojo/_base/declare',
'dojo/dom',
'dojo/on',
'dstore/Rest',
'dstore/Request',
//'dstore/RequestMemory',
'dgrid/extensions/Pagination',
'dgrid/OnDemandGrid',
'dstore/Trackable',
'dojo/domReady!'
], function (declare, dom, on, Rest, Request, Pagination, OnDemandGrid, Trackable) {
// Create an instance of OnDemandGrid referencing the store
var data = [];
for (var i = 0; i < 100; i++) {
data[i] = {
id: i + 1,
name: '' + (i + 1),
value: i + 1
};
}
var store = new (declare([Rest, Trackable]))({
target:'http://localhost:8000/api/XXXXXXXXX/?format=json',
range:items=0-25,
idProperty: 'id',
data: data
});
var grid = new (declare([OnDemandGrid, Pagination]))({
collection: store,
columns: [
{label:"ID", field:"id"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"}
]
}, 'grid');
grid.startup();
});
</script>
</body>
</html>
This is the code if you click the link in the error. The grid itself displays in the browser; buttons, column headers... everything... just no data. And in the terminal (server information): this displays: [02/Jun/2015 13:38:18] "GET /api/XXXXXXXXX/?format=json&limit(25) HTTP/1.1" 200 1631 [02/Jun/2015 13:38:18] "GET /api/XXXXXX/?format=json&limit(10) HTTP/1.1" 200 1631
// | }
// | );
thisObject = thisObject || kernel.global;
transform = transform ?
lang.hitch(thisObject, transform) : function(v){ return v; };
return template.replace(/\$\{([^\s\:\}]+)(?:\:([^\s\:\}]+))?\}/g,
function(match, key, format){
var value = lang.getObject(key, false, map);
if(format){
value = lang.getObject(format, false, thisObject).call(thisObject, value, key);
}
return transform(value, key).toString();
}); // String
};
string.trim = String.prototype.trim ?
lang.trim : // aliasing to the native function
function(str){
str = str.replace(/^\s+/, '');
for(var i = str.length - 1; i >= 0; i--){
if(/\S/.test(str.charAt(i))){
str = str.substring(0, i + 1);
break;
}
}
return str;
};
UPDATE 6.3.15 Here is the new code trying to create a custom store to meet requirements
<script>
define([
'dojo/_base/lang',
'dojo/_base/declare',
'dojo/dom',
'dojo/on',
'dstore/Store',
'dojo/Request',
'dojo/store/Observable',
'dgrid/extensions/Pagination',
'dgrid/OnDemandGrid',
'dstore/QueryResults',
'dojo/domReady!'
], function (lang, declare, dom, on, Store, Request, Observable, Pagination, OnDemandGrid, QueryResults) {
// Create an instance of OnDemandGrid referencing the store
return declare(Observable(Store, {
apiUrl:'http://localhost:8000/api/table/?format=json',
headers: {
Accept: 'application/json.rest_framework.v3+json'
},
'Content-Range':items=0-25/765,
_request:function (target, options) {
options = lang.mixin({ handleAs:'json'}, options);
options.headers = lang.mixin({}, this.headers, options.headers);
return request(this.apirUrl + target, options);
},
get: function (id) {
return this._request('api/table/'+ encodeURIComponent(id),{
method: 'GET'
});
},
fetch: function(){
return new QueryResults(this._request('/api/table'));
}
}));
var grid = new (declare([OnDemandGrid, Pagination]))({
collection: store,
columns: {
{label:"ID", field:"id"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"},
{label:"XXXXXXXXX", field:"XXXXXXXXX"}
}
}, 'grid');
grid.startup();
});
</script>
This question has begun to morph, so I've formatted my answer a bit to try to match so it's still somewhat cohesive.
dgrid 0.4 interfaces with dstore stores, not dojo/store, which is why you're ending up with no data displayed.
dstore/Rest should be usable as a mostly drop-in replacement for dojo/store/JsonRest, though you may want to fiddle with some of the options it inherits from Request.
If you're coming from dgrid 0.3 previously, the migration guide has a section covering the store API change. The Using Grids and Stores tutorial was also updated for dgrid 0.4 and dstore.
dstore/Rest has specific expectations about services it connects to in order to work. Another question popped up regarding this, so I have an answer there regarding the details.
This sounds largely tangential to the original issue, but the most common cause is a widget template that is referencing a property via ${...} that doesn't actually exist in the widget.