JQGrid and JSON data from Web2py - json

Question

Q1.json is working (index.json). but i cant display in the jqgrid. i think colmodel names is the problem.Is it required that the colModel name is from database field? i want to display in jqgrid is from my select statements and those variables is from different tables. Not only one table but 3 tables.
Q2.Same row should be displayed in jqgrid but from different table. is it possible?
<script type="text/javascript">
jQuery(document).ready(function(){
jQuery("#list").jqGrid({
url:'{{=URL(r=request,f='call',args=['json','index'])}}',
data: "{}",
datatype: 'json',
mtype: 'GET',
contentType: "application/json; charset=utf-8",
complete: function(jsondata, stat) {
if (stat == "success") {
var thegrid = jQuery("#list")[0];
thegrid.addJSONData(JSON.parse(jsondata.responseText).d);
}
},
colNames:['code','name','max','min','quantity','amount'],
colModel :[
{name:CODE',index:'CODE', width:55},
{name:'Name', index:'Name',width:100},
{name:'MAX(table2.hour)', index:'MAX(hour)',width:100},
{name:'MIN(tabl2.hour)', index:'MIN(hour)',width:100},
{name:'SUM(quantity)', index:'SUM(quantity)',width:180},
{name:'SUM(amount)', index:'SUM(amount)',width:180}
],
hidegrid: false,
scrollOffset:0,
pager: '#pager',
rowNum:100,
shrinkToFit:false,
//rowList:[10,20,30,50],
//sortname: 'id',
//sortorder: 'desc',
viewrecords: false,
width: "100%",
height: "100%",
caption: 'SALES Grid'
});
});
</script>
{"rows": [0, {"table1": {"Name": "dyon"}, "_extra": {"MAX(table2.hour)": "20130514214301484", "MIN(table2.hour)": "20130514052610093", "SUM(table2.quantity)": 2115.854, "SUM(table2.amount)": 90089.15}, "table3": {"CODE": 1800}}]}
NOTE: i want to display the data in one page only.when i run the index.html it contains rows but it is blank and theres a rows contains 0 per cell.When i run the index.json it contains the data i needed. Im newbie to python. thanks!

Answer 1

The first problem is that you use many options of jqGrid which not exist (see the documentation): data, contentType, complete. You remove the options or use some other options which do what you probably tried to do.
The second problem is the usage of properties in JSON input which has dots inside (like SUM(table2.quantity) for example). To be able to read such properties you have to define jsonmap as function. For example
jsonmap: function (obj) {
return obj._extra["SUM(table2.quantity)"];
}
Because the JSON data have 0 as the first element you will have to fix the above code to somthing like
jsonmap: function (obj) {
return typeof obj === "object"? obj._extra["SUM(table2.quantity)"]: "";
}
The first demo demonstrate the results:
The best would be to fix your server code to remove the unneeded 0 item from rows array. If you can't do this on the server side you can do this on the client side inside of beforeProcessing callback.
The demo displays
It uses the following JavaScript code
$("#list").jqGrid({
url: "CrazyGirl.json", // need be changed to youth
datatype: "json",
ajaxGridOptions: { contentType: "application/json" },
serializeGridData: function (data) {
return JSON.stringify({}); // send empty object (???)
},
colNames: ["code", "name", "max", "min", "quantity", "amount"],
colModel: [
{name: "code", width: 55, jsonmap: "table3.CODE"},
{name: "name", width: 100, jsonmap: "table1.Name"},
{name: "max", width: 120,
jsonmap: function (obj) {
return typeof obj === "object"? obj._extra["MAX(table2.hour)"]: "";
}},
{name: "min", width: 120,
jsonmap: function (obj) {
return typeof obj === "object"? obj._extra["MIN(table2.hour)"]: "";
}},
{name: "quantity", width: 100,
jsonmap: function (obj) {
return typeof obj === "object"? obj._extra["SUM(table2.quantity)"]: "";
}},
{name: "amount", width: 100,
jsonmap: function (obj) {
return typeof obj === "object"? obj._extra["SUM(table2.amount)"]: "";
}}
],
jsonReader: { repeatitems: false },
hidegrid: false,
pager: "#pager",
rowNum: 1000,
shrinkToFit: false,
height: "100%",
caption: "SALES Grid"
});