preloading external json into select box then after search getting specific results

问题

so i am looking into loading external data in an select2 box where there is prepopulate results from the json

i have two issue - getting the data in and then only loading the first few but when a user searches it passes the request to the rest and then the specific json is returned

so the HTML is a simple as

<input type="hidden" id="e21" style="width:300px;"/>

the inital js is

$(document).ready(function () {
    $('#e21').select2({
        query: function (query){
        var data = {results: []};
        console.log(data);
        $.each(preload_data, function(){
            if(query.term.length == 0 || this.text.toUpperCase().indexOf(query.term.toUpperCase()) >= 0 ){
                data.results.push({id: this.id, text: this.text });
            }
        });

        query.callback(data);
        }
    });

    $('#e21').select2('data', preload_data );

});

what that does is load in preload_data so that could be

var preload_data = [
{ id: 'user0', text: 'Disabled User'}, 
{ id: 'user1', text: 'Jane Doe'},
{ id: 'user2', text: 'John Doe', locked: true },
{ id: 'user3', text: 'Robert Paulson', locked: true },
{ id: 'user5', text: 'Spongebob Squarepants'},
{ id: 'user6', text: 'Planet Bob' },
{ id: 'user7', text: 'Inigo Montoya' }
];

an example is here

http://jsfiddle.net/dwhitmarsh/MfJ4B/10/

but instead of preload_data i want to load in load in a ajax call and pass the results

so i could use

var preload_data = $.ajax({
 url: 'data/more.json',
 method: 'get',
 dataType: 'json'
});

but need to wait for the json to load and only want to load in the first 10.

then when a user actually searches i want to pass extra variables like

string: term, //search term
page_limit: 10, // page size
page: page // page number

page is part of the select 2

can anyone help?

btw the more.json looks like

{
    "total": 8, 
    "result": [{
            "id": "1",
            "label": "Type",
            "safeName":"type",
            "jsonFile": "type.json"

    },{
            "id": "2",
            "label": "Primary Applicant Name",
            "safeName":"primaryApplicantName",
            "jsonFile": "primary.json"
    },{
            "id": "3",
            "label": "Address",
            "safeName":"address",
            "jsonFile": "address.json"
    },{
            "id": "4",
            "label": "Product",
            "safeName":"product",
            "jsonFile": "product.json"
    },{
            "id": "5",
            "label": "Verification",
            "safeName": "verification",
            "jsonFile": "verification.json"

    },{
            "id": "6",
            "label": "Documents",
            "safeName": "documents",
            "jsonFile": "documents.json"
    },{
            "id": "7",
            "label": "Suburb",
            "safeName": "suburb",
            "jsonFile": "suburb.json"
    },{
            "id": "8",
            "label": "State",
            "safeName": "state",
            "jsonFile": "state.json"


    }]
}

来源：https://stackoverflow.com/questions/16978623/preloading-external-json-into-select-box-then-after-search-getting-specific-resu

标签

ajax

json

jquery

jquery-select2