I am using Select2 for the select boxes and Select2 is not searching data which is case sensitive. For example I have LHE in the list but when I search lhe it displays nothing any help will be appreciated here is the code I am using. Trust me I have read many solutions and tried those as well but none are working. here is the code.
<script>
function matchCustom(params, data) {
// If there are no search terms, return all of the data
if ($.trim(params.term) === '') {
return false;
}
// Do not display the item if there is no 'text' property
if (typeof data.text === 'undefined') {
return null;
}
// `params.term` should be the term that is used for searching
// `data.text` is the text that is displayed for the data object
if (data.text.indexOf(params.term) > -1) {
var modifiedData = $.extend({}, data, true);
modifiedData.text;
// You can return modified objects from here
// This includes matching the `children` how you want in nested data sets
return modifiedData;
}
// Return `null` if the term should not be displayed
return null;
}
$(document).ready(function () {
$(".destination").select2({
matcher: matchCustom,
});
$(".departure").select2({
matcher: matchCustom,
});
});
Related
I am using select2 4.0.3 for search drop down. As per my understanding its default functionality is not to match with the start of entries the drop down have. So I have implemented the below given code
function matchStart(params, data) {
params.term = params.term || '';
if (data.text.toUpperCase().indexOf(params.term.toUpperCase()) == 0) {
return data;
}
return false;
}
$("select").select2({
placeholder : "Input country name or select region",
matcher : function (params, data) {
return matchStart(params, data);
},
});
My problem is, the dropdown is not showing "No results found" message even if there is no matching results found. Can anyone help me on this.
Thanks in advance.
Try changing the return value of matchStart from false to null.
Also you can remove the extra function around the matcher argument. The result:
function matchStart(params, data) {
params.term = params.term || '';
if (data.text.toUpperCase().indexOf(params.term.toUpperCase()) == 0) {
return data;
}
return null;
}
$("select").select2({
placeholder: "Input country name or select region",
matcher: matchStart
});
I'm using Select2 now since 2 years and I really enjoy all dev made. however, version 3.5.x has his limit, so I'm moving to version 4.0, which give me headaches!
For your record, I'm using Select2 with large table (> 10.000 entries), so AJAX & infinite data (page set to 50 items).
With version 3.5.2, I can reproduce the underline match when searching for data (using formatSelection and query.term). Any idea how to make it with version 4.0.0 (function templateResult only passes result and not query anymore?
With version 3.x, you can add free entries using search value was not in the list (using createSearchChoice). Version 4.0 does not have this option, any idea how to make it again?
I try to replace the Select bar with an input bar (still using the select dropdown). It seems possible to force the adapter but I was unable to find how.
I need to add either a line (at row 1) or a button (floating to the right) to add new item (similar to createTag, but for an item). has someone made it already?
I'd highly recommend reading the release notes and the 4.0 release announcement when migrating from Select2 3.5.2 to Select2 4.0.0.
With version 3.5.2, I can reproduce the underline match when searching for data (using formatSelection and query.term).. any idea how to make it with v4.0.0 (function templateResult only pass 'result' and not 'query' anymore ?
This was removed in 4.0 because the results have been separated from the queries, so it didn't make sense to keep passing along the information. Of course, this doesn't mean you can't get the query and store it. All you would need to do is store the query, something like the following might work
var query = {};
var $element = $('#my-happy-select');
function markMatch (text, term) {
// Find where the match is
var match = text.toUpperCase().indexOf(term.toUpperCase());
var $result = $('<span></span>');
// If there is no match, move on
if (match < 0) {
return $result.text(text);
}
// Put in whatever text is before the match
$result.text(text.substring(0, match));
// Mark the match
var $match = $('<span class="select2-rendered__match"></span>');
$match.text(text.substring(match, match + term.length));
// Append the matching text
$result.append($match);
// Put in whatever is after the match
$result.append(text.substring(match + term.length));
return $result;
}
$element.select2({
templateResult: function (item) {
// No need to template the searching text
if (item.loading) {
return item.text;
}
var term = query.term || '';
var $result = markMatch(item.text, term);
return $result;
},
language: {
searching: function (params) {
// Intercept the query as it is happening
query = params;
// Change this to be appropriate for your application
return 'Searching…';
}
}
});
With version 3.x, you can add free entries using search value was not in the list (using createSearchChoice). V4.0 has not this option, any idea how to make it again ?
This can still be done in 4.0 using the tags option (set it to true). If you want to customize the tag, you can use createTag (similar to createSearchChoice).
var $element = $('#my-happy-select');
$element.select2({
createTag: function (query) {
return {
id: query.term,
text: query.term,
tag: true
}
},
tags: true
});
Simple way to underline matched results with select2 4.x
$element.select2({
escapeMarkup: function (markup) { return markup; }
,
templateResult: function (result) {
return result.htmlmatch ? result.htmlmatch : result.text;
}
,
matcher:function(params, data) {
if ($.trim(params.term) === '') {
return data;
}
if (typeof data.text === 'undefined') {
return null;
}
var idx = data.text.toLowerCase().indexOf(params.term.toLowerCase());
if (idx > -1) {
var modifiedData = $.extend({
'htmlmatch': data.text.replace(new RegExp( "(" + params.term + ")","gi") ,"<u>$1</u>")
}, data, true);
return modifiedData;
}
return null;
}
})
As of now (Dojo 1.9.2) I haven't been able to find a Dojo autocomplete widget that would satisfy all of the following (typical) requirements:
Only executes a query to the server when a predefined number of characters have been entered (without this, big datasets should not be queried)
Does not require a full REST service on the server, only a URL which can be parametrized with a search term and simply returns JSON objects containing an ID and a label to display (so the data-query to the database can be limited just to the required data fields, not loading full data-entities and use only one field thereafter)
Has a configurable time-delay between the key-releases and the start of the server-query (without this excessive number of queries are fired against the server)
Capable of recognizing when there is no need for a new server-query (since the previously executed query is more generic than the current one would be).
Dropdown-stlye (has GUI elements indicating that this is a selector field)
I have created a draft solution (see below), please advise if you have a simpler, better solution to the above requirements with Dojo > 1.9.
The AutoComplete widget as a Dojo AMD module (placed into /gefc/dijit/AutoComplete.js according to AMD rules):
//
// AutoComplete style widget which works together with an ItemFileReadStore
//
// It will re-query the server whenever necessary.
//
define([
"dojo/_base/declare",
"dijit/form/FilteringSelect"
],
function(declare, _FilteringSelect) {
return declare(
[_FilteringSelect], {
// minimum number of input characters to trigger search
minKeyCount: 2,
// the term for which we have queried the server for the last time
lastServerQueryTerm: null,
// The query URL which will be set on the store when a server query
// is needed
queryURL: null,
//------------------------------------------------------------------------
postCreate: function() {
this.inherited(arguments);
// Setting defaults
if (this.searchDelay == null)
this.searchDelay = 500;
if (this.searchAttr == null)
this.searchAttr = "label";
if (this.autoComplete == null)
this.autoComplete = true;
if (this.minKeyCount == null)
this.minKeyCount = 2;
},
escapeRegExp: function (str) {
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
},
replaceAll: function (find, replace, str) {
return str.replace(new RegExp(this.escapeRegExp(find), 'g'), replace);
},
startsWith: function (longStr, shortStr) {
return (longStr.match("^" + shortStr) == shortStr)
},
// override search method, count the input length
_startSearch: function (/*String*/ key) {
// If there is not enough text entered, we won't start querying
if (!key || key.length < this.minKeyCount) {
this.closeDropDown();
return;
}
// Deciding if the server needs to be queried
var serverQueryNeeded = false;
if (this.lastServerQueryTerm == null)
serverQueryNeeded = true;
else if (!this.startsWith(key, this.lastServerQueryTerm)) {
// the key does not start with the server queryterm
serverQueryNeeded = true;
}
if (serverQueryNeeded) {
// Creating a query url templated with the autocomplete term
var url = this.replaceAll('${autoCompleteTerm}', key, this.queryURL);
this.store.url = url
// We need to close the store in order to allow the FilteringSelect
// to re-open it with the new query term
this.store.close();
this.lastServerQueryTerm = key;
}
// Calling the super start search
this.inherited(arguments);
}
}
);
});
Notes:
I included some string functions to make it standalone, these should go to their proper places in your JS library.
The JavaScript embedded into the page which uses teh AutoComplete widget:
require([
"dojo/ready",
"dojo/data/ItemFileReadStore",
"gefc/dijit/AutoComplete",
"dojo/parser"
],
function(ready, ItemFileReadStore, AutoComplete) {
ready(function() {
// The initially displayed data (current value, possibly null)
// This makes it possible that the widget does not fire a query against
// the server immediately after initialization for getting a label for
// its current value
var dt = null;
<g:if test="${tenantInstance.technicalContact != null}">
dt = {identifier:"id", items:[
{id: "${tenantInstance.technicalContact.id}",
label:"${tenantInstance.technicalContact.name}"
}
]};
</g:if>
// If there is no current value, this will have no data
var partnerStore = new ItemFileReadStore(
{ data: dt,
urlPreventCache: true,
clearOnClose: true
}
);
var partnerSelect = new AutoComplete({
id: "technicalContactAC",
name: "technicalContact.id",
value: "${tenantInstance?.technicalContact?.id}",
displayValue: "${tenantInstance?.technicalContact?.name}",
queryURL: '<g:createLink controller="partner"
action="listForAutoComplete"
absolute="true"/>?term=\$\{autoCompleteTerm\}',
store: partnerStore,
searchAttr: "label",
autoComplete: true
},
"technicalContactAC"
);
})
})
Notes:
This is not standalone JavaScript, but generated with Grails on the server side, thus you see <g:if... and other server-side markup in the code). Replace those sections with your own markup.
<g:createLink will result in something like this after server-side page generation: /Limes/partner/listForAutoComplete?term=${autoCompleteTerm}
As of dojo 1.9, I would start by recommending that you replace your ItemFileReadStore by a store from the dojo/store package.
Then, I think dijit/form/FilteringSelect already has the features you need.
Given your requirement to avoid a server round-trip at the initial page startup, I would setup 2 different stores :
a dojo/store/Memory that would handle your initial data.
a dojo/store/JsonRest that queries your controller on subsequent requests.
Then, to avoid querying the server at each keystroke, set the FilteringSelect's intermediateChanges property to false, and implement your logic in the onChange extension point.
For the requirement of triggering the server call after a delay, implement that in the onChange as well. In the following example I did a simple setTimeout, but you should consider writing a better debounce method. See this blog post and the utility functions of dgrid.
I would do this in your GSP page :
require(["dojo/store/Memory", "dojo/store/JsonRest", "dijit/form/FilteringSelect", "dojo/_base/lang"],
function(Memory, JsonRest, FilteringSelect, lang) {
var initialPartnerStore = undefined;
<g:if test="${tenantInstance.technicalContact != null}">
dt = {identifier:"id", items:[
{id: "${tenantInstance.technicalContact.id}",
label:"${tenantInstance.technicalContact.name}"
}
]};
initialPartnerStore = new Memory({
data : dt
});
</g:if>
var partnerStore = new JsonRest({
target : '<g:createLink controller="partner" action="listForAutoComplete" absolute="true"/>',
});
var queryDelay = 500;
var select = new FilteringSelect({
id: "technicalContactAC",
name: "technicalContact.id",
value: "${tenantInstance?.technicalContact?.id}",
displayValue: "${tenantInstance?.technicalContact?.name}",
store: initialPartnerStore ? initialPartnerStore : partnerStore,
query : { term : ${autoCompleteTerm} },
searchAttr: "label",
autoComplete: true,
intermediateChanges : false,
onChange : function(newValue) {
// Change to the JsonRest store to query the server
if (this.store !== partnerStore) {
this.set("store", partnerStore);
}
// Only query after your desired delay
setTimeout(lang.hitch(this, function(){
this.set('query', { term : newValue }
}), queryDelay);
}
}).startup();
});
This code is untested, but you get the idea...
I'm using select2 with Bootstrap 3.
Now I would like to know whether it is possible to display all optgroup items if the search matches the optgroup name while still being able to search for items as well. If this is possible, how can I do it?
The above answers don't seem to work out of the box with Select2 4.0 so if you're hunting for that, check this out: https://github.com/select2/select2/issues/3034
(Use the function like this: $("#example").select2({matcher: modelMatcher});)
function modelMatcher (params, data) {
data.parentText = data.parentText || "";
// Always return the object if there is nothing to compare
if ($.trim(params.term) === '') {
return data;
}
// Do a recursive check for options with children
if (data.children && data.children.length > 0) {
// Clone the data object if there are children
// This is required as we modify the object to remove any non-matches
var match = $.extend(true, {}, data);
// Check each child of the option
for (var c = data.children.length - 1; c >= 0; c--) {
var child = data.children[c];
child.parentText += data.parentText + " " + data.text;
var matches = modelMatcher(params, child);
// If there wasn't a match, remove the object in the array
if (matches == null) {
match.children.splice(c, 1);
}
}
// If any children matched, return the new object
if (match.children.length > 0) {
return match;
}
// If there were no matching children, check just the plain object
return modelMatcher(params, match);
}
// If the typed-in term matches the text of this term, or the text from any
// parent term, then it's a match.
var original = (data.parentText + ' ' + data.text).toUpperCase();
var term = params.term.toUpperCase();
// Check if the text contains the term
if (original.indexOf(term) > -1) {
return data;
}
// If it doesn't contain the term, don't return anything
return null;
}
Actually found the solution by modifying the matcher opt
$("#myselect").select2({
matcher: function(term, text, opt){
return text.toUpperCase().indexOf(term.toUpperCase())>=0 || opt.parent("optgroup").attr("label").toUpperCase().indexOf(term.toUpperCase())>=0
}
});
Under the premise that the label attribute has been set in each optgroup.
Found a solution from select2/issues/3034
Tested with select2 v.4
$("select").select2({
matcher(params, data) {
const originalMatcher = $.fn.select2.defaults.defaults.matcher;
const result = originalMatcher(params, data);
if (
result &&
data.children &&
result.children &&
data.children.length
) {
if (
data.children.length !== result.children.length &&
data.text.toLowerCase().includes(params.term.toLowerCase())
) {
result.children = data.children;
}
return result;
}
return null;
},
});
A few minor changes to people suggested code, less repetitive and copes when there are no parent optgroups:
$('select').select2({
matcher: function(term, text, opt){
var matcher = opt.parent('select').select2.defaults.matcher;
return matcher(term, text) || (opt.parent('optgroup').length && matcher(term, opt.parent('optgroup').attr("label")));
}
});
I am using JQuery UI Autocomplete in my JSP. Whenever user keys character, i made the request to server and get the data as JSON and load with the pulgin.
It's working fine. But Whenever i typed the same character as previous term. It's not populating any values.
For eg., First i typed p, it lists the p starting elements. I have the button to reset the text content of autocompleter. After reset, if i am typing same character p, it doesn't show anything.
my code as follows,
var cache = {};
$("#Name").autocomplete({
source: function(req, add){
if (req.term in cache) {
add(cache[req.term]);
return;
}
$.getJSON("/store/StockManagement?action=getMedicinesStock",req, function(data) {
var medicines = [];
$.each(data, function(i, val){
medicines.push(val.name + "," + val.code);
});
cache[req.term] = medicines;
add(medicines);
});
},select: function(e, ui) {
var medicine = ui.item.value;
$('#Code').val(medicine.split(",")[1]);
setTimeout(function(){
var med = $('#Name').val();
$('#Name').val(med.split(",")[0]);
},500);
}
});
// Taken from jquery-ui-1.8.4.custom.min.js
if (a.term != a.element.val()) { // *** THE MATCH IS HERE
//console.log("a.term != a.element.val(): "+a.term+", "+a.element.val());
a.selectedItem = null;
a.search(null, c) // *** SEARCH IS TRIGGERED HERE
}
I just commented the condition. now it's works fine.