Automatically create header from JSON file, Bootstrap-table - javascript

I'm working with this bootstrap library and actually everything works fine. The question is, Can bootstrap-table generate header automatically in depend of JSON file? I've tried to find any information about that, but unlucky. Now my header is generated from script like from this example:
function initTable() {
$table.bootstrapTable({
height: getHeight(),
columns: [{
field: 'field1',
title: 'title1',
sortable: true
}, {
field: 'field2',
title: 'title2',
sortable: true
}, {
field: 'field3',
title: 'title3',
sortable: true
}, {
field: 'Actions',
title: 'Item Operate',
align: 'center',
events: operateEvents,
formatter: operateFormatter
}
],
formatNoMatches: function () {
return "This table is empty...";
}
});
Does anyone how to generate header automatically?

Populating from a flat json file is definetly possible but harder than from a seperate (slimmer and preped) data request, because title and other attributes 'might' have to be guessed at.
Ill show basic approach, then tell you how to make it work if stuck with a flat file that you CAN or CANT affect the format of (important point, see notes at end).
Make a seperate ajax requests that populates var colArray = [], or passes direct inside done callback.
For example, in callback (.done(),.success(), ect) also calls to the function that contains the js init code for the table.
You might make it look something like this:
function initTable(cols) {
cols.push({
field: 'Actions',
title: 'Item Operate',
align: 'center',
events: operateEvents,
formatter: operateFormatter
});
$("#table").bootstrapTable({
height: getHeight(),
columns: cols,
formatNoMatches: function () {
return "This table is empty...";
}
});
}
$(document).ready(function(){
$.ajax({
method: "POST",
url: "data/getColumns",
// data: { context: "getColumns" }
datatype: "json"
})
.done(function( data ) {
console.log( "getCols data: ", data );
// Prep column data, depending on what detail you sent back
$.each(data,function(ind,val){
data.sortable = true;
});
initTable(data);
});
});
Now, if you are in fact stuck with a flat file, point the ajax towards that then realise the question is whether you can edit the contents.
If yes, then add a columns array into it with whatever base data (title, fieldname, ect) that you need to help build your columns array. Then use responseHandler if needed to strip that columns array if it causes issues when loading into table.
http://bootstrap-table.wenzhixin.net.cn/documentation/#table-options
http://issues.wenzhixin.net.cn/bootstrap-table/ (click 'see source').
If no, you cant edit contents, and only have the fieldname, then look at using that in the .done() handler with whatever string operation (str_replace(), ect) that you need to make it look the way you want.

Related

Custom parameters for bootstrap-table server side pagination

I have a service created with spring boot, for which I am trying to display its data using the bootstrap-table library.
My service allows pagination with the query parameters ?page=x&size=y, where page starts at 0.
The response for the query returns something that looks like this:
{
"_embedded": {
"catalogueOrders": [ .... ]
},
"page": {
"size": 20,
"totalElements": 11,
"totalPages": 1,
"number": 0
}
}
Where _embedded.catalogueOrders contains all the data, and page contains the totals.
I tried configuring my table as following:
$('#orderTable').bootstrapTable({
url: "http://localhost:8088/catalogueOrders?orderStatus=" + orderState,
columns: [
{
field: 'orderId',
title: 'Order ID'
},
{
field: 'priority',
title: 'Priority'
}
],
pagination: true,
sidePagination: 'server',
totalField: 'page.totalElements',
pageSize: 5,
pageList: [5, 10, 25],
responseHandler: function(res) {
console.log(res)
return res["_embedded"]["catalogueOrders"]
}
})
This is able to retrieve and display the data, however it returns all the results, clearly due to it not knowing how to apply the pagination. Total elements doesn't seem to be retrieved either, as the table displays Showing 1 to 5 of undefined rows. Also, if I replace the responseHandler with dataField: '_embedded.catalogueOrders', it's no longer displaying the data.
How do I configure the query parameters needed for pagination?
And am I doing anything wrong when I try and configure dataField and totalField?
Figured it out:
Not sure what was wrong with the dataField and totalField, but it seems to not work with nested fields. To resolve this, I formatted the response into a new object inside responseHandler:
dataField: 'data',
totalField: 'total',
responseHandler: function(res) {
return {
data: res["_embedded"]["catalogueOrders"],
total: res["page"]["totalElements"]
}
}
As for the query parameters, by default, bootstrap-table provides the parameters limit and offset. To customize that and convert to size and page like in my case, the queryParams function can be provided:
queryParams: function(p) {
return {
page: Math.floor(p.offset / p.limit),
size: p.limit
}
}
one, yes, it doesn’t work with nested fields. if you want to use nested fields, try on sass code (get the compiler, just search up on web, there’s plenty of posts on the web).
two, i’m not exactly sure what you’re talking about, but you can set up a css variable
:root{
/*assign variables*/
—-color-1: red;
—-color-2: blue;
}
/*apply variables
p {
color: var(-—color-1):
}
you can find loads of info on this on the web.

Get data in json using javascript and datatables

I have a javascript as below, which can fetch the data from backed in json format. But How can i pass it to another function , i.e datatables to populate it
<script>
var returndata;
$.getJSON("/api/dashboard_data/", success);
function success(data) {
returndata = data;
window.alert(returndata);
return returndata;
// do something with data, which is an object
}
$(document).ready(function() {
$('#example').DataTable( {
data: returndata,
columns: [
{ title: "Action" },
{ title: "Input" },
{ title: "State" },
{ title: "Completed" },
{ title: "Project" },
]
} );
} );
</script>
In above code in window.alert(returndata), i get the json data which has been returned from backed.
But the same variable "returndata" when i use it in function ready it is empty. How can i get it in ready function.
You are calling two asynchronous functions here. $.getJSON() and $(document).ready(). It looks that ready() is faster than getJSON() which means returndata is empty when you try to fill your data table.
Try this to make sure you have always the correct order:
<script>
$(document).ready(function() {
$.getJSON("/api/dashboard_data/", function(returndata) {
$('#example').DataTable( {
data: returndata,
columns: [
{ title: "Action" },
{ title: "Input" },
{ title: "State" },
{ title: "Completed" },
{ title: "Project" },
]
});
});
});
</script>
Firstly, which jQuery plugin are you using for DataTables? Is it this one? The first thing I would do would be to put everything inside the $document.ready() as the documentation demonstrates. This ensures that all your code executes after the DOM is ready. Let me know what happens after that.
Also this part of the documentation could help if you are using the DataTables API. It could be as simple as a misspelling depending on what you're trying to do as quoted from the docs here:
The result from each is an instance of the DataTables API object which has the tables found by the selector in its context. It is important to note the difference between $( selector ).DataTable() and $( selector ).dataTable(). The former returns a DataTables API instance, while the latter returns a jQuery object.
I know this is not a good solution, just a hack. You can use window.setInterval or window.setTimeout function to check for data and execute the required function. Don't forget to clear the interval.
Follow the Datatables documentation: https://datatables.net/examples/server_side/simple.html
You'll have to do something like this:
$('#example').DataTable({
"processing": true,
"serverSide": true,
"ajax": _getData(),
"columns": [
{title: "Action"},
{title: "Input"},
{title: "State"},
{title: "Completed"},
{title: "Project"}
]
});
function _getData(data, callback) {
$.getJSON("/api/dashboard_data/", success);
function success(data) {
// you'll probably want to get recordsTotal & recordsFiltered from your server
callback({
recordsTotal: 57,
recordsFiltered: 57,
data: data
})
}
}
I haven't tested this code, but this should guide you in the right direction :)

Angular with Kendo, Using Grid Values Asynchronously

Ok I'm pretty sure I know exactly what I need to do here but I'm not sure how to do it. Basically I have a grid that I want to make a key column bind to an array of key/values, which I've done before with kendo (not using Angular) and I know that when I'm creating my key/value array asynchronously then that needs to complete before I can get them show-up with kendo, which I have done using promises before.
So here I have the same issue only angular is also involved. I need to fetch and format an array of data into the format in which a kendo grid column can digest it, so no problem here is my controller code:
var realm = kendo.data.Model.define({
id: 'realmID',
fields: {
realmID: { editable: false, nullable: true }
realmType: { type: 'string', validation: { required: true } }
}
})
var ds1 = kendoHelpers.dataSourceFactory('realms', realm, 'realmID')
var realmType = kendo.data.Model.define({
id: 'realmTypeID',
fields: {
realmTypeID: { editable: false, nullable: true },
name: { type: 'string', validation: { required: true } }
}
})
var ds2 = kendoHelpers.dataSourceFactory('realms/types', realmType, 'realmTypeID')
$scope.mainGridOptions = {
dataSource: ds1,
editable: true,
navigatable: true,
autoBind:false,
toolbar: [
{ name: "create" },
{ name: 'save' },
{ name: 'cancel' }
],
columns: [
{ field: 'realmID', title: 'ID' }
{ field: 'realmTypeID', title: 'Realm Type', editor: realmTypesDDL, values: $scope.realmTypeValues },
{ command: "destroy" }
]
}
$scope.secondGridOptions = {
dataSource: ds2,
editable: true,
navigatable: true,
toolbar: [
{ name: "create" },
{ name: 'save' },
{ name: 'cancel' }
],
columns: [
{ field: 'realmTypeID', title: 'ID' },
{ field: 'name', title: 'Name' }
{ command: "destroy" }
]
}
ds2.fetch(function () {
$scope.realmTypeValues = [{ text: 'Test', value: "24bc2e62-f761-4e70-804c-bc36fdeced3d" }];
//this.data().map(function (v, i) {
// $scope.realmTypeValues.push({ text: v.name, value: v.realmTypeID})
//});
//$scope.mainGridOptions.ds1.read()
});
function realmTypesDDL(container, options) {
$('<input />')
.appendTo(container)
.kendoDropDownList({
dataSource: ds2,
dataTextField: 'name',
dataValueField: 'realmTypeID'
});
}
I made this dataSourceFatory helper method above to return me a basic CRUD kendo dataSource that uses transport and also injects an authorization header which is working fine so don't get hung up on that, ultimately I'm going to be using this data in another grid as well as for reference values for the main grid, but I've hard coded some values that I can use to test with in the ds2.fetch callback.
My HTML is pretty plain:
<div>
<h2>Realms</h2>
<kendo-grid options="mainGridOptions"></kendo-grid>
<h2>Realm Types</h2>
<kendo-grid options="secondGridOptions"></kendo-grid>
</div>
This all works fine and well except I am only seeing the GUID of the realmTypeID in the grid, I click it and the editor is populated correctly so that's good but I want the text value to be displayed instead of the GUID. I'm sure the issue is that the array of values is empty whenever angular is binding to the grid options. My questions are:
How do I either delay this bind operation or manually rebind it after the fetch call?
Is there a better way to handle a situation like this? I try not to expend finite resources for no reason (IE making server calls when unnecessary)
Note: When I move the creation of the text/value array to happen before the grid options, I get the desired behavior I am after
EDIT A work around is to not use the directive to create the grid and instead defer the grid creation until the callback of whatever data your column is dependent on, I was hoping for a more elegant solution but this is better than nothing. So your HTML becomes something like
<h2>Realms</h2>
<div id="realms"></div>
<h2>Realm Types</h2>
<kendo-grid options="secondGridOptions"></kendo-grid>
Then you can create the grid in the fetch callback for example:
ds2.fetch(function () {this.data().map(function (v, i) {
$scope.realmTypeValues.push({ text: v.name, value: v.realmTypeID})
});
$('#realms').kendoGrid($scope.mainGridOptions);
$scope.mainGridOptions.dataSource.fetch()
});
But this doesn't feel very angularish so I'm really hoping for a better solution!
Ok...well I think I hacked this enough and without another suggestion I'm going to go forward with this approach. I'm just going to move the binding logic to the requestEnd event of the second grid so that the values array can be populated right before the binding even. I'm also reworking the values array in this method. It is a bit weird though, I think there is some kendo black magic going on with this array because I can't just set it to a new empty array without it breaking completely...which is why I'm poping everything out prior to repopulating the array. That way when something is deleted or edited in the second grid, the DDL in the first grid is updated in the callback.
function requestEnd(e) {
for (var i = $scope.realmTypeValues.length; i >= 0; i--) $scope.realmTypeValues.pop();
var data;
if (e.type == "read")
data = e.response;
else
data = e.sender.data();
data.map(function (v, i) { $scope.realmTypeValues.push({ text: v.name, value: v.realmTypeID }); });
if ($('#realms').data('kendoGrid') == undefined) {
$('#realms').kendoGrid($scope.mainGridOptions);
}
else
$('#realms').data('kendoGrid').columns[4].values = $scope.realmTypeValues;
}
ds2.bind('requestEnd', requestEnd);
So I'm going to accept my own answer unless anyone has a better approach!

How to provide data to Fuel UX datagrid from Rails?

I'd like to use the Fuel UX datagrid to display some data I am retrieving from my database. The page is served from a ruby on rails server.
The javascript example code for building the data object:
var dataSource = new StaticDataSource({
columns: [{
property: 'toponymName',
label: 'Name',
sortable: true
}, {
property: 'countrycode',
label: 'Country',
sortable: true
}, {
property: 'population',
label: 'Population',
sortable: true
}, {
property: 'fcodeName',
label: 'Type',
sortable: true
}],
data: sampleData.geonames,
delay: 250
});
$('#MyGrid').datagrid({
dataSource: dataSource,
stretchHeight: true
});
$('#datagrid-reload').on('click', function () {
$('#MyGrid').datagrid('reload');
});
If I am understanding the code, I am going to be defining my columns and some attributes in the columns object inside of the dataSource variable, and the data object is being loaded by sampleData.geonames.
The sampleData is here
What can I do using the rails conventions to replace the sampleData.geonames? I tried tweaking this a few ways to load rails objects in to here.
For example, I modified my columns' property fields to correspond to some properties of my User model. I tried replacing the
data: sampleData.geonames,
to
data: <%= #users.to_json %>,
I'm a little restricted on gems and versions, currently using Rails 2.3.
Thanks for any help.
If you want the datagrid to make a background AJAX request to load the data from your app, please see this tutorial which will be closer to what you need:
http://dailyjs.com/2012/10/29/fuel-ux
This would have the benefit of an immediate page load followed by asynchronous loading of data.
If you would rather stick with the StaticDataSource approach just embed a small script on your page similar to this:
<script>
var myData = { ... };
</script>
Then, load that with:
var dataSource = new StaticDataSource({
columns: [ ... ],
data: myData,
delay: 250
});

EXTJS + Updating a store with the database ID after saving a grid

I'm trying to learn how to use the EXTJS grids for some simple CRUD operations over a table in a admin app.
I have a simple grid that allows someone to edit users, the store is defined as:
var userDataStore = new Ext.data.Store({
id: 'userDataStore',
autoSave: false,
batch: true,
proxy: new Ext.data.HttpProxy({
api: {
read: '/Admin/Users/All',
create: '/Admin/Users/Save',
update: '/Admin/Users/Save'
}
}),
reader: new Ext.data.JsonReader(
{
root: 'Data',
idProperty: 'ID',
totalProperty: 'total',
successProperty: 'success',
messageProperty: 'message'
}, [
{ name: 'ID', type: 'string', allowBlanks: false },
{ name: 'NT_ID', type: 'string', allowBlank: false },
{ name: 'EMail', type: 'string', allowBlank: false },
{ name: 'Name', type: 'string', allowBlank: false },
{ name: 'Enabled', type: 'bool', allowBlank: false },
{ name: 'CurrentRoleCode', type: 'string', allowBlank: false}]
),
writer: new Ext.data.JsonWriter(
{
encode: false,
writeAllFields: true,
listful: true
})
});
This is bound to a grid, and I am able to load and save users without issue. The save button looks like this:
var saveButton = new Ext.Button({
text: 'Save',
disabled: true,
handler: function() {
userDataStore.save();
pageState.ClearDirty();
saveButton.disable();
}
});
However, when creating a new user, the JSON POST for the user is posted to the same REST service end point as "Update", with the only difference being that no ID value is posted (as one is only set in the store when loading from the server).
This works, and I am able to create users.
The save REST service emits back the created row with the new database ID, and I was under the assumption that EXTJS would automatically bind the new generated database ID to the row. This allows the user to further edit that row, and cause an update instead of a insert.
Instead, the row continues to have a blank user ID, so an additional save creates another new user.
So either:
EXTJS is supposed to resolve generated row ID's automatically and I am just doing something wrong.
I am supposed to manually reload the grid after each save with an additional REST call.
I've been looking at EXTJS documentation and forums, but I am unclear on the proper approach.
Can someone clarify?
EDIT: I tried returning Success = True in JSON to match the SuccessProperty, however this still didn't seem to work.
EDIT #2: So far the only thing I've found that works is doing "userDataStore.reload()" after saving, however because I was returning the contents of the store back after saving, I was hoping that EXTJS would understand that and update the row values.
I've got an idea that may help you. Let't suppose that user added a new
record in grid, in that moment add a new property newRecOrderNo to the record to
identify the record after response. When user will post data to server after
inserting you must get a new ID and associate it to newRecOrderNo
(like Map<Integer,Integer>). Then return json object like that :
{
success : true,
newIdes : {
1 : 23,
2 : 34
}
}
Then when you get response do set proper IDs to records:
userDataStore.each(function(rec){
if(rec.data.newRecOrderNo){
rec.data.ID = response.newIdes[rec.data.newRecOrderNo];
delete rec.data.newRedOrderNo;
}
})
})
Yes, it sets id (and also other fields, if server returns modified values of them), if create ajax backend returns record with set id, at least in extjs 4.1. You should return inserted record, with id set, under 'root' key as json dictionary, in this example root is 'Data', i.e.:
{
"Data": {
"ID": 8932,
"NT_ID": 28738273,
...
"CurrentRoleCode": "aaa",
},
"success": true
}
You need reload store with new params in savebtn handler
like
store.reload();
of course you can add more params to load action

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