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Added toolkit, readme, example
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‎README

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‎README.markdown

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Force.com JavaScript REST Toolkit
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=================================
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This minimal toolkit allows JavaScript in Visualforce pages to call the Force.com REST API via the Ajax Proxy.
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Background
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----------
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Due to the [same origin policy](http://en.wikipedia.org/wiki/Same_origin_policy), JavaScript running in Visualforce pages may not use XmlHttpRequest to directly invoke the REST API, since Visualforce pages have hostnames of the form abc.na1.visual.force.com, and the REST API endpoints are of the form na1.salesforce.com.
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We can work around this restriction by using the [AJAX Proxy](http://www.salesforce.com/us/developer/docs/ajax/Content/sforce_api_ajax_queryresultiterator.htm#ajax_proxy). Since the AJAX proxy is present on all
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Visualforce hosts with an endpoint of the form https://abc.na1.visual.force.com/services/proxy, our Visualforce-hosted JavaScript can invoke it, passing the desired resource URL in an HTTP header.
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Dependencies
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------------
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The toolkit uses jQuery. It has been tested on jQuery 1.4.4, but other versions may also work.
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Configuration
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-------------
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You must add the correct REST endpoint hostname for your instance (i.e. https://na1.salesforce.com/ or similar) as a remote site in *Your Name > Administration Setup > Security Controls > Remote Site Settings*.
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Using the Toolkit
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-----------------
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Create a zip file containing forcetk.js, jquery.js, and any other static resources your project may need. Upload the zip via *Your Name > App Setup > Develop > Static Resources*.
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Your Visualforce page will need to include jQuery and the toolkit, then create a client object, passing a session ID to the constructor. An absolutely minimal sample is:
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<apex:page>
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<apex:includeScript value="{!URLFOR($Resource.static, 'jquery.js')}" />
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<apex:includeScript value="{!URLFOR($Resource.static, 'forcetk.js')}" />
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<script type="text/javascript">
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// Get a reference to jQuery that we can work with
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$j = jQuery.noConflict();
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// Get an instance of the REST API client
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var client = new forcetk.Client('{!$Api.Session_ID}');
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client.query("SELECT Name FROM Account LIMIT 1",function(response){
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$j('#accountlist').html(response.records[0].Name);
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});
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</script>
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<p>The first account I see is <span id="accountlist"></span>.</p>
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</apex:page>
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A much more fully featured sample is provided in example.page.

‎example.page

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<!--
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Copyright (c) 2011, salesforce.com, inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification, are permitted provided
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that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list of conditions and the
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following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
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the following disclaimer in the documentation and/or other materials provided with the distribution.
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Neither the name of salesforce.com, inc. nor the names of its contributors may be used to endorse or
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promote products derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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-->
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<!--
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Sample Visualforce page for Force.com JavaScript REST Toolkit
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-->
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<apex:page standardStylesheets="false" showHeader="false" sidebar="false">
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<head>
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<title>
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Force.com JavaScript REST Toolkit
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</title>
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<style type="text/css">
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body {
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font-family:"Arial";
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}
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table.main {
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border: 1px solid #666;
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}
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.highlighted {
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background-color:#D6EDFC;
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}
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.odd {
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background-color:#fea;
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}
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form {
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margin-bottom: 1em;
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}
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</style>
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<!--
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Download jQuery, jQuery UI and Trimpath Template, and put them in a
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static resource bundles!
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-->
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<apex:includeScript
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value="{!URLFOR($Resource.static, 'query.js')}" />
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<apex:includeScript
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value="{!URLFOR($Resource.static, 'jquery-ui.js')}" />
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<apex:includeScript
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value="{!URLFOR($Resource.static, 'template.js')}" />
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<apex:includeScript
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value="{!URLFOR($Resource.static, 'forcetk.js')}" />
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<apex:stylesheet
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value="{!URLFOR($Resource.static, 'jquery-ui.css')}" />
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<script type="text/javascript">
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// Get a reference to jQuery that we can work with
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$j = jQuery.noConflict();
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// Make our own startsWith utility fn
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String.prototype.startsWith = function(str){
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return (this.substr(0, str.length) === str);
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}
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// Get an instance of the REST API client
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var client = new forcetk.Client('{!$Api.Session_ID}');
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// We'll use this a lot :-)
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var ajaxgif = "<img src='{!URLFOR($Resource.static, 'static/ajax.gif')}'/>";
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var $dialog = null;
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// Kick things off by doing a describe on Account...
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$j(document).ready(function() {
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$dialog = $j('<div></div>')
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.dialog({
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autoOpen: false,
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width: 450
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});
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$j('#prompt').html(ajaxgif+" loading metadata...");
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client.describe('Account', metadataCallback);
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});
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var timeout = null;
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function autoFilter() {
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if (timeout != null) {
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clearTimeout(timeout);
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}
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var field = $j("#field").val();
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var value = $j("#value").val();
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filterAccounts(field,value);
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}
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function metadataCallback(response){
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// Using TrimPath Template for now - may switch to jQuery Template at some
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// point
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$j('#prompt').html(TrimPath.processDOMTemplate("prompt_jst"
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, response));
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$j("#value").keyup(function(){
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if (timeout != null) {
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clearTimeout(timeout);
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}
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timeout = setTimeout("autoFilter()",1000);
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});
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$j('#go').click(function(e) {
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var field = $j("#field").val();
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var value = $j("#value").val();
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e.preventDefault();
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filterAccounts(field,value);
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});
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$j('#new').click(function(e) {
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e.preventDefault();
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// Just make Trimpath happy
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var dummy = {};
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var i;
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for (i = 0; i < response.fields.length; i++) {
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dummy[response.fields[i].name] = '';
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}
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$dialog.html(TrimPath.processDOMTemplate("edit_jst", dummy));
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$dialog.find('#action').html('Create').click(function(e) {
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e.preventDefault();
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$dialog.dialog('close');
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var fields = {};
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$dialog.find('input').each(function() {
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var child = $j(this);
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if ( child.val().length > 0 ) {
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fields[child.attr("name")] = child.val();
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}
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});
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$j('#list').html(ajaxgif+" creating account...");
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client.create('Account', fields, createCallback);
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});
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$dialog.dialog('option', 'title', 'New Account');
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$dialog.dialog('open');
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});
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filterAccounts();
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}
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function queryCallback(response) {
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$j('#list').html(TrimPath.processDOMTemplate("accounts_jst"
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, response));
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$j('#version').html($j.fn.jquery);
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$j('#uiversion').html($j.ui.version);
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$j("#list tr:nth-child(odd)").addClass("odd");
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$j('#accounts').find('.id')
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.hover(function() {
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$j(this).addClass("highlighted");
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},function(){
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$j(this).removeClass("highlighted");
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})
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.click(showAccountDetail);
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}
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function detailCallback(response) {
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if (response.Website != null
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&& !response.Website.startsWith('http://')) {
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response.Website = 'http://'+response.Website;
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}
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$dialog.html(TrimPath.processDOMTemplate("detail_jst"
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,response));
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$dialog.find('#industry').click(function(e) {
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e.preventDefault();
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$dialog.dialog('close');
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filterIndustry($j(this).html());
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});
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$dialog.find('#delete').click(function(e) {
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e.preventDefault();
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$dialog.dialog('close');
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$j('#list').html(ajaxgif+" deleting account...");
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client.del('Account', $dialog.find('#id').val(), deleteCallback);
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});
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$dialog.find('#edit').click(function(e) {
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e.preventDefault();
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$dialog.html(TrimPath.processDOMTemplate("edit_jst"
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,response));
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$dialog.find('#action').html('Update').click(function(e) {
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e.preventDefault();
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$dialog.dialog('close');
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var fields = {};
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$dialog.find('input').each(function() {
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var child = $j(this);
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if ( child.val().length > 0 && child.attr("name") != 'id') {
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fields[child.attr("name")] = child.val();
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}
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});
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$j('#list').html(ajaxgif+" updating account...");
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client.update('Account', $dialog.find('#id').val(), fields, updateCallback);
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});
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});
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}
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function createCallback(response) {
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$j('#list').html('Created '+response.id);
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setTimeout("filterAccounts()",1000);
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}
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function updateCallback(response) {
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$j('#list').html('Updated');
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setTimeout("filterAccounts()",1000);
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}
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function deleteCallback(response) {
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$j('#list').html('Deleted');
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setTimeout("filterAccounts()",1000);
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}
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function showAccountDetail() {
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// Show the dialog
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$dialog.dialog('option', 'title', 'Account Detail');
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$dialog.dialog('open');
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$dialog.html(ajaxgif+" retrieving...");
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// Get account details and populate the dialog
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client.retrieve('Account', this.id, 'Name,Industry,TickerSymbol,Website'
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, detailCallback);
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}
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function filterAccounts(field, value) {
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$j('#list').html(ajaxgif+" loading data...");
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var query = ( typeof value !== 'undefined' && value.length > 0 )
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? "SELECT Id, Name FROM Account WHERE "+field+" LIKE '"+value
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+"%' ORDER BY Name LIMIT 20"
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: "SELECT Id, Name FROM Account ORDER BY Name LIMIT 20";
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client.query(query, queryCallback);
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}
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</script>
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</head>
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<body>
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<div id="main">
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<div id="prompt">
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</div>
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<div id="list">
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</div>
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</div>
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<textarea id="prompt_jst" style="display:none;">
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<form>
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<h3 style="display:inline;">Filter on</h3>
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<select id="field">
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{for f in fields}
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{if f.type == 'string'}
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<option value="${f.name}">${f.label}</option>
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{/if}
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{/for}
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</select>
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<input type="text" id="value" />
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<input type="submit" id="go" name="search" value="Search" />
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</form>
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<form>
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<input type="submit" id="new" name="new" value="New" />
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</form>
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</textarea>
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<textarea id="accounts_jst" style="display:none;">
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<table class="main" id="accounts">
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{for r in records}
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<tr><td class="id" id="${r.Id}">${r.Name}</td></tr>
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{/for}
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</table>
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<br/>
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<a href="https://login.salesforce.com/secur/logout.jsp" id="logout">Logout</a>
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<p>
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<i>Running jQuery <span id="version">0.0.0</span>, jQuery UI <span id="uiversion">0.0.0</span></i>
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</p>
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</textarea>
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<textarea id="detail_jst" style="display:none;">
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<table>
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{if Website != null}
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<tr><td>Name:</td><td><a href="${Website}">${Name}</a></td></tr>
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{else}
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<tr><td>Name:</td><td>${Name}</td></tr>
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{/if}
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{if Industry != null}
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<tr><td>Industry:</td><td><a href="#" id="industry">${Industry}</a></td></tr>
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{/if}
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{if TickerSymbol != null}
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<tr><td>Ticker Symbol:</td><td><a href="http://www.google.com/finance?q=${TickerSymbol}">${TickerSymbol}</a></td></tr>
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{/if}
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</table>
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<br/>
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<form>
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<input type="hidden" name="id" id="id" value="${Id}" />
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<button id="delete">Delete</button>
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<button id="edit">Edit</button>
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</form>
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</textarea>
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<textarea id="edit_jst" style="display:none;">
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<form id="editform">
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<input type="hidden" name="id" id="id" value="${Id}" />
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<table>
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<tr><td>Name:</td><td><input name="Name" id="Name" value="${Name}"/></td></tr>
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<tr><td>Industry:</td><td><input name="Industry" id="Industry" value="${Industry}"/></td></tr>
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<tr><td>Ticker Symbol:</td><td><input name="TickerSymbol" id="TickerSymbol" value="${TickerSymbol}"/></td></tr>
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</table>
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<br/>
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<button id="action" />
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</form>
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</textarea>
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</body>
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</apex:page>

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