<apex:page standardController="Consum_Apply__c">
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<apex:includeScript value="{!URLFOR($Resource.qrcode)}"/>
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<!-- <apex:includeScript value="{!URLFOR($Resource.connection20)}"/>
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<apex:includeScript value="{!URLFOR($Resource.apex20)}"/> -->
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<apex:includeScript value="/soap/ajax/46.0/connection.js"/>
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<apex:includeScript value="/soap/ajax/46.0/apex.js"/>
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<div id="qrcode"></div>
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<script type="text/javascript">
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function createAttachment() {
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var div = document.getElementById("qrcode");
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var img = div.getElementsByTagName("img");
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var src = img[0].src;
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src = src.substring(22, src.length);
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sforce.connection.sessionId = '{!GETSESSIONID()}';
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var record = sforce.connection.query("select id from Attachment where ParentId = \'{!Consum_Apply__c.Id}\' and name = \'QRCode-{!Consum_Apply__c.Name}\'");
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// 不存在qr文件时，新生成一个，并连到申请单上
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if (record.size == 0) {
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var atta = new sforce.SObject("Attachment");
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atta.Name = "QRCode-{!Consum_Apply__c.Name}";
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atta.ParentId = "{!Consum_Apply__c.Id}";
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atta.Body = src;
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var result = sforce.connection.create([atta]);
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var es = new sforce.SObject("Consum_Apply__c");
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es.Id = "{!Consum_Apply__c.Id}";
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es.QRId__c = result[0].id;
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result = sforce.connection.update([es]);
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}
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else {
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var records = record.getArray("records");
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// 存在qr时，绑到申请单上
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if(records[0].Id != "{!Consum_Apply__c.QRId__c}"){
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var es = new sforce.SObject("Consum_Apply__c");
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es.Id = "{!Consum_Apply__c.Id}";
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es.QRId__c = records[0].Id;
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result = sforce.connection.update([es]);
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}
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}
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}
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var qrcode = new QRCode(document.getElementById("qrcode"), {
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text: "{!Consum_Apply__c.Name}",
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width: 128,
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height: 128,
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colorDark : "#000000",
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colorLight : "#ffffff",
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correctLevel : QRCode.CorrectLevel.H
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});
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// qrcode生成後、Attachmentを作成
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setTimeout("createAttachment()", 1000);
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</script>
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</apex:page>
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