How to use select2 plugin with php and ajax? - javascript

I am new to select2 plugin, my problem is,
I want to put a job search option to my web page that is when user queries with keyword php then it will return corresponding data as json. For example if user enters java then it will return most possible words like java, javascript, java.net and user can pick up one or more item from the list displayed.
i did but there is no select option
script
$(".load").select2({
minimumInputLength: 2,
ajax: {
url: "http://localhost/testserver/Test",
dataType: 'json',
type: "post",
data: function (term, page) {
return {
q: term
};
},
processResults: function (data, page) {
console.log(data);
return {
results: $.map(data, function (item) {
return {
text: item.Name,
}
})
};
}
},
});
html
<select class="load" style="width:400px;">

Find below Complete solution
$(document).ready(function() {
$(".load").select2({
minimumInputLength: 2,
ajax: {
url: "http://ip.jsontest.com/",
dataType: 'json',
type: "post",
data: function (term, page) {
return {
q: term
};
},
processResults: function (data, page) {
return {
results: $.map(data, function (item) { console.log(item);
return {
text: item
}
})
};
}
},
});
});
I have pointed url to some other location for dynamic data..Please make changes accordingly

Related

Select2 AJAX not showing "No data found" when no data in database, instead showing search parameter as option to select

I've been working on a project where I've to load select2 option from ajax call.
The code is working fine, except in search result, it always shows search parameter as option. Even if there is no data in database, it still showing it as option, not showing "No data found".
My code is here
$(".search_user").select2({
minimumInputLength: 11,
tags: [],
ajax: {
url: "/user/get_user",
dataType: 'json',
type: "GET",
quietMillis: 250,
data: function (term) {
return {
term: term
};
},
processResults: function (data) {
var Return = [];
for (var i in data.item) {
console.log(data.item[i])
if (data.item[i].id != data.item[i].text) {
Return.push(data.item[i]);
}
}
return {
results: Return
}
}
}
});
my return json is like this
{"item":[{"id":16,"name":"Razin Abid"}]}
My view is looking like this.
Please help me out.
If you using firemodal on stisla
$('#modal-create-promo').click(()=>{
setTimeout(()=>{
$('#fire-modal-1').removeAttr('tabindex');
});
});
$("#modal-create-promo").fireModal({
...
});
It's work for me
Thats because you enable tags option from select2. You need to remove 'Tags:[]' from your code.
visit : https://select2.org/tagging
so, your code should be like this:
$(".search_user").select2({
minimumInputLength: 11,
ajax: {
url: "/user/get_user",
dataType: 'json',
type: "GET",
quietMillis: 250,
data: function (term) {
return {
term: term
};
},
processResults: function (data) {
var Return = [];
for (var i in data.item) {
console.log(data.item[i])
if (data.item[i].id != data.item[i].text) {
Return.push(data.item[i]);
}
}
return {
results: Return
}
}
}
});

Change remote url based on search query

I have a select2 field which is retrieving data from a remote api. I can get that working. What I'm trying to do is change the remote url based on what the user has typed. If the first two letters typed are for example "AA" then search using a url and when the first two characters are "88" then search using another url.
This is my code so far:
this.selector.select2({
minimumInputLength: 2,
ajax: {
url: function(param){return 'http://localhost:3000/suggestions?&'},
dataType: 'json' ,
data: function (params) {
var query = {
search: params.term,
}
return query;
},
processResults: function(data) {
var results = [];
$.each(data, function (index, search) {
results.push({
id: search.id,
text: search.val
});
});
return {
"results":results
};
},
},
width: 'resolve',
});
I've looked but can't find an event which is fired when typing(searching).
According to docs the params argument passed to url callback is the same as in data callback. So you can rewrite your code as:
this.selector.select2({
minimumInputLength: 2,
ajax: {
url: function (params) {
var firstTwoLetters = params.term.slice(0, 2);
if (firstTwoLetters == '88') {
return 'some url';
} else if (firstTwoLetters == 'AA') {
return 'another url'
} else {
return 'http://localhost:3000/suggestions?&'
}
},
dataType: 'json',
data: function (params) {
var query = {
search: params.term,
}
return query;
},
processResults: function (data) {
var results = [];
$.each(data, function (index, search) {
results.push({
id: search.id,
text: search.val
});
});
return {
"results": results
};
},
},
width: 'resolve',
});
I hope I understood your last request correctly.
The oninput event occurs as you type.
note: I'd rather comment it and not use Answer, however, I have less than 50 rep.

select2 programmatically without knowing results in advance

I am trying to write a test for a Javascript select2 control and I would like to automatically select the first item. Since it's using ajax I do not know what the first item is. All the examples I have seen create <option> however they assume knowledge of the value. How can I select the first item without knowledge? (Note this example only runs the ajax command after 3 items are entered).
var $selector = $("#foo");
$selector.show().select2({
allowClear: true,
placeholder: "--------",
minimumInputLength: 3,
ajax: {
url: "...",
type: 'GET',
dataType: 'json',
delay: 250,
data: function(term, page) {
return {
number__icontains: term
};
},
results: function(data) {
return {
results: $.map(data.objects, function(option) {
return {
'id': option.id,
'text': option.desc
};
})
};
},
cache: false
},
initSelection: function(element, callback) {
...
}
});

select2JS Ajax Option Value

I'm developing a form with select2JS.
In my first step I use a simple Select2
$(this).select2();
But I want to change it for an Ajax version.
$(this).select2({
multiple:multival,
ajax:
{
url: '/api/v2/vocabulary/'+vocabulary+'/words/list',
headers: {'X-AUTHORIZATION-TOKEN': token},
dataType: 'json',
type: "POST",
quietMillis: 100,
data: function (params) { // Lors d'une recherche
return {
pattern: params.term, // search term
page: params.page
};
},
processResults: function (data, params) {
// parse the results into the format expected by Select2
// since we are using custom formatting functions we do not need to
// alter the remote JSON data, except to indicate that infinite
// scrolling can be used
params.page = params.page || 1;
return {
results: data.words,
pagination: {
more: (params.page * 15) < data.total
}
};
},
initSelection : function (element, callback) {
var data = [];
$(element.val()).each(function () {
data.push({id: this, text: this});
});
callback(data);
},
cache: true
},
escapeMarkup: function (markup) {return markup; }, // let our custom formatter work
minimumInputLength: 0,
templateResult: function formatRepo (repo)
{
return repo.name;
},
templateSelection: function formatRepoSelection (repo)
{
return repo.name;
}
});
In the first version, my Ajax return the name of the Option ( When I send the form). In the Ajax version, the script create a new Option inside the select ( But not visible ) and when I send the form its an Id who is sent. Because in the Value of the new Option, its the Id and not the name.
I use Select2 4.0.1 and I find in the 3162' Line :
if (data.id) {
option.value = data.id;
}
I tried to change data.id by data.name, but it was not effective.
Do you have an idea?

Forcing select2 ajax call

I have 2 select2 and when one of them changes the other one loads it's content using the built in select2 ajax function, the problem is that in the case only one element comes from the server I want it to be loaded by default, but for what I have seen the ajax call is only executed when opening the select2 in question. Here is the code I run when the first selec2 is changed in order to change the second's data:
$select1.on('change', function () {
initializeLocationsSelect2($select2, $select1.val(), $template, omId);
});
function initializeLocationsSelect2(tag, s1Value, template, id) {
tag.val("");
tag.select2({
placeholder: "Please Select One",
minimumInputLength: 0,
multiple: true,
tokenSeparators: [","],
tags: false,
ajax: {
url: tag.data('url'),
dataType: 'json',
quietMillis: 250,
data: function (term, page) {
return {
id: id,
value: s1Value
};
},
results: function (data, page) {
return {
results: data
};
}
},
formatSelection: function (item) {
return $.format(template.html(), item.text);
},
formatResult: function (item) {
return $.format(template.html(), item.text);
},
escapeMarkup: function (m) { return m; }
});
}
just in case it is relevant, the second select2 is attached to a <hidden> tag

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