CRM 2011:使用Javascript获取实体 [英] CRM 2011: Getting entity with Javascript
问题描述
我正在进行一些CRM 2011 Online自定义，我需要使用javascript获取实体.
I am working on some CRM 2011 Online customisations and I need to get an entity using javascript.
我需要的实体将基于另一个字段(联系人实体)的ID值-我可以很好地获取此联系人ID.
The entity I need will be based on the ID value of another field (a Contact entity) - this Contact ID I can get fine.
我想要的实体是自定义实体.根据联系人ID可能有多个匹配项，因此我只想获取列表中的第一个(顺序不重要)
The entity I want is a custom entity. There may be multiple matches based on the Contact ID so I just want to get the first one in the list (order not important)
到目前为止，我已经研究了几种实现此目的的方法...
So far I have looked into a few ways to do this...
-
OData-我找不到足够的示例来说明可以创建哪些查询表达式，也不知道是否/如何使此功能适用于自定义实体
OData - I couldn't find enough examples on this as to what query expressions I can create, also I don't know if/how to make this work for custom entities
FetchXML-我也可以使用内置的高级查找"创建一个不错的FetchXML查询，如果有人可以提供帮助，很乐意从javascript调用它吗?我找到了一个有希望的答案这里，但是我看不到如何设置结果"返回数据(Service.Fetch函数)
FetchXML - I can create a nice FetchXML query using the built-in "advanced find" too and would be happy to call this from javascript if anyone can help? I found one promising answer here but I could not see how the "results" return data was being set (Service.Fetch function)
SOAP请求-我尝试的第一件事是与CRM 4中类似的方法，但这似乎不起作用.尽管请求已执行，但我的结果数据似乎还是空的.这就是我所拥有的全部代码，因此，如果任何人都可以发现下面的代码有问题，那就太好了.
SOAP Request - First thing I tried is a similar method as I could have done in CRM 4 but this does not seem to work. Although the request executes, my result data just seems to be empty. This is all I have code for so if any one can spot a problem with the code below then that would be great.
编辑:我发现了一些多余的查询数据(我删除了链接打开标签，但留下了结束标签)-由于删除了该查询，我现在获得了XML结果数据...但是，where子句可以似乎不适用(只是获取所有实体的列表)
EDIT: I have spotted some redundant query data (I had removed link opening tags but left closing tags) - since removing this I now get XML result data... however, the where clause does not seem to apply (just get list of all entities)
var xml = "<?xml version='1.0' encoding='utf-8'?>" +
"<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">" +
GenerateAuthenticationHeader() +
"<soap:Body>" +
"<RetrieveMultiple xmlns=\"http://schemas.microsoft.com/crm/2007/WebServices\">" +
"<query xmlns:q1=\"http://schemas.microsoft.com/crm/2006/Query\" xsi:type=\"q1:QueryExpression\">" +
"<q1:EntityName>new_vehicle</q1:EntityName>" +
"<q1:ColumnSet xsi:type='q1:ColumnSet'>" +
"<q1:Attributes>" +
"<q1:Attribute>new_vehicleid</q1:Attribute>" +
"<q1:Attribute>new_primarydriver</q1:Attribute>" +
"<q1:Attribute>statuscode</q1:Attribute>" +
"<q1:Attribute>new_registration</q1:Attribute>" +
"</q1:Attributes>" +
"</q1:ColumnSet>" +
"<q1:Distinct>false</q1:Distinct>" +
"<q1:Conditions>" +
"<q1:Condition>" +
"<q1:AttributeName>new_primarydriver</q1:AttributeName>" +
"<q1:Operator>Equal</q1:Operator>" +
"<q1:Values>" +
"<q1:Value xmlns:q2='http://microsoft.com/wsdl/types/' xsi:type='q2:guid'>" +
customerID +
"</q1:Value></q1:Values></q1:Condition>" +
"</q1:Conditions>" +
"</query></RetrieveMultiple>" +
"</soap:Body></soap:Envelope>";
var xmlHttpRequest = new ActiveXObject("Msxml2.XMLHTTP");
xmlHttpRequest.Open("POST", "/mscrmservices/2007/CrmService.asmx", false);
xmlHttpRequest.setRequestHeader("SOAPAction", "http://schemas.microsoft.com/crm/2007/WebServices/RetrieveMultiple");
xmlHttpRequest.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xmlHttpRequest.setRequestHeader("Content-Length", xml.length);
xmlHttpRequest.send(xml);
var result = xmlHttpRequest.responseXML.xml;
var doc = new ActiveXObject("MSXML2.DOMDocument");
doc.async = false;
doc.loadXML(result);
var id = doc.selectSingleNode("//new_vehicleid");
var registration = doc.selectSingleNode("//new_registration");
if(id == null)
return null;
var vehicle = new Array();
value[0] = new Object();
value[0].id = id;
value[0].name = registration;
value[0].entityType = "new_vehicle";
return vehicle;
对不起，我对大代码发布感到遗憾，但希望有一个更好的了解的人可以为您提供帮助
Sorry about the big code post but hopefully somebody who has a better understanding can help
推荐答案
首先，感谢GlennFerrieLive的回答.我在 Dynamics CRM 2011 SDK 中找到的示例(特别是其中一个)确实提供了帮助，并且其中包含的JSON解析器非常适合这项工作！
Firstly, thanks to GlennFerrieLive for his answer post. The samples I found with the Dynamics CRM 2011 SDK (well just one in particular) really helped and the JSON parser included was perfect for the job!
我正在发布此答案，以提供一个完整的示例，说明如何进行此操作，并带有一些重要的注释，请注意，这些注释在SDK示例中可能并不那么明显.
I am posting this answer to give a full example of how I did it with some important comments to pay attention to which may not be so obvious from the SDK examples.
从查找字段中获取选定的ID值
我的任务是基于另一个查找实体的选定数据，使用javascript来设置查找字段.要设置的实体是"new_vehicle"，要查询的实体是客户".
The aim of my task was to use javascript to get set a lookup field, based on the selected data of another lookup entity. The entity to set is "new_vehicle" and the entity to query on is "customer".
第一项工作是获取联系人查找字段的ID值...
First job is to get the ID value of the contact lookup field...
var customerItem = Xrm.Page.getAttribute("customerid").getValue();
var customerID = customerItem[0].id;
使用ID查询实体
接下来是我使用customerID值来查找当前分配给他们的车辆(我想用来设置查找字段的实体)的部分.
Next is the part where I used the customerID value to find the vehicle that is currently assigned to them (the entity I want to use to set a lookup field).
我发现的第一个问题是，使用OData查询时，ID值似乎不适用于大括号{}-因此需要将其删除...
First problem I found was that when querying with OData, the ID value does not seem to work with curly brackets {} - so these need to be removed...
customerID = customerID.replace('{', '').replace('}', '');
接下来，我们将获得oDataPath ...
Next we get the oDataPath...
var oDataPath = Xrm.Page.context.getServerUrl() + "/xrmservices/2011/organizationdata.svc";
然后我们可以构造OData查询...
Then we can construct the OData query...
var filter = "/new_vehicleSet?" +
"$select=new_vehicleId,new_Registration" +
"&$filter=new_PrimaryDriver/Id eq (guid'" + customerID + "')" +
"&$orderby=new_LastAllocationDate desc" +
"&$top=1";
注意:这里有几件事要注意...
NOTE: There are a couple of important things to note here...
- 使用GUID值时，必须使用
(guid'xxx')明确表示它是GUID.
- 通过查找实体(例如new_PrimaryDriver)进行过滤时，您必须将值附加到查询(例如ID)上-这将导致new_PrimaryDriver/Id
- When using a guid value you must explicitly say it is a guid using
(guid'xxx') - When filtering by a lookup entity (e.g. new_PrimaryDriver) you must append the value to query (e.g. Id) - this results in new_PrimaryDriver/Id
设置好查询后，我们可以按以下方式请求数据...
Once we have the query setup we can request the data as follows...
var retrieveRecordsReq = new XMLHttpRequest();
retrieveRecordsReq.open("GET", oDataPath + filter, true);
retrieveRecordsReq.setRequestHeader("Accept", "application/json");
retrieveRecordsReq.setRequestHeader("Content-Type", "application/json; charset=utf-8");
retrieveRecordsReq.onreadystatechange = function () {
if (this.readyState == 4) {
if (this.status == 200) {
var retrievedRecords = JSON.parse(retrieveRecordsReq.responseText).d;
if(retrievedRecords.results.length > 0)
{
var vehicle = retrievedRecords.results[0];
SetLookup("new_replacedvehicle", vehicle.new_vehicleId, vehicle.new_Registration, "new_vehicle");
}
}
}
};
retrieveRecordsReq.send();
请注意，这是一个异步调用，并且onreadystatechange函数将在完成后处理.在此函数中，我们进行了两次检查以查看是否成功，并解析了所得的JSON数据-JSON.Parse函数已包含在这篇文章的底部(但可以从 SDK )
Note that this is an asynchronous call and the onreadystatechange function will be processed upon completion, in this function we do a couple of checks to see if it was a success and the we parse the resulting JSON data - the JSON.Parse function has been included at the bottom of this post (but is available from the SDK)
使用上面查询的实体设置查找字段
这里要注意的另一个功能是SetLookup，它只是我添加的用于设置查找字段的简单帮助程序功能.如下...
The other function to make note of here is SetLookup which is just a simple helper function I added to set a lookup field. This is as follows...
function SetLookup(fieldName, idValue, textValue, typeValue)
{
var value = new Array();
value[0] = new Object();
value[0].id = idValue;
value[0].name = textValue;
value[0].typename = typeValue;
Xrm.Page.getAttribute(fieldName).setValue(value);
}
JSON解析功能
这是上面代码(JSON.parse)中使用的JSON帮助程序函数，已粘贴在SDK中找到的内容...
This is the JSON helper function that was used in the above code (JSON.parse), pasted as it was found in the SDK...
if (!this.JSON) { this.JSON = {}; } (function () { function f(n) { return n < 10 ? '0' + n : n; } if (typeof Date.prototype.toJSON !== 'function') { Date.prototype.toJSON = function (key) { return isFinite(this.valueOf()) ? this.getUTCFullYear() + '-' + f(this.getUTCMonth() + 1) + '-' + f(this.getUTCDate()) + 'T' + f(this.getUTCHours()) + ':' + f(this.getUTCMinutes()) + ':' + f(this.getUTCSeconds()) + 'Z' : null; }; String.prototype.toJSON = Number.prototype.toJSON = Boolean.prototype.toJSON = function (key) { return this.valueOf(); }; } var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, gap, indent, meta = { '\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"': '\\"', '\\': '\\\\' }, rep; function quote(string) { escapable.lastIndex = 0; return escapable.test(string) ? '"' + string.replace(escapable, function (a) { var c = meta[a]; return typeof c === 'string' ? c : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); }) + '"' : '"' + string + '"'; } function str(key, holder) { var i, k, v, length, mind = gap, partial, value = holder[key]; if (value && typeof value === 'object' && typeof value.toJSON === 'function') { value = value.toJSON(key); } if (typeof rep === 'function') { value = rep.call(holder, key, value); } switch (typeof value) { case 'string': return quote(value); case 'number': return isFinite(value) ? String(value) : 'null'; case 'boolean': case 'null': return String(value); case 'object': if (!value) { return 'null'; } gap += indent; partial = []; if (Object.prototype.toString.apply(value) === '[object Array]') { length = value.length; for (i = 0; i < length; i += 1) { partial[i] = str(i, value) || 'null'; } v = partial.length === 0 ? '[]' : gap ? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' : '[' + partial.join(',') + ']'; gap = mind; return v; } if (rep && typeof rep === 'object') { length = rep.length; for (i = 0; i < length; i += 1) { k = rep[i]; if (typeof k === 'string') { v = str(k, value); if (v) { partial.push(quote(k) + (gap ? ': ' : ':') + v); } } } } else { for (k in value) { if (Object.hasOwnProperty.call(value, k)) { v = str(k, value); if (v) { partial.push(quote(k) + (gap ? ': ' : ':') + v); } } } } v = partial.length === 0 ? '{}' : gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' : '{' + partial.join(',') + '}'; gap = mind; return v; } } if (typeof JSON.stringify !== 'function') { JSON.stringify = function (value, replacer, space) { var i; gap = ''; indent = ''; if (typeof space === 'number') { for (i = 0; i < space; i += 1) { indent += ' '; } } else if (typeof space === 'string') { indent = space; } rep = replacer; if (replacer && typeof replacer !== 'function' && (typeof replacer !== 'object' || typeof replacer.length !== 'number')) { throw new Error('JSON.stringify'); } return str('', { '': value }); }; } if (typeof JSON.parse !== 'function') { JSON.parse = function (text, reviver) { var j; function walk(holder, key) { var k, v, value = holder[key]; if (value && typeof value === 'object') { for (k in value) { if (Object.hasOwnProperty.call(value, k)) { v = walk(value, k); if (v !== undefined) { value[k] = v; } else { delete value[k]; } } } } return reviver.call(holder, key, value); } text = String(text); cx.lastIndex = 0; if (cx.test(text)) { text = text.replace(cx, function (a) { return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); }); } if (/^[\],:{}\s]*$/.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) { j = eval('(' + text + ')'); return typeof reviver === 'function' ? walk({ '': j }, '') : j; } throw new SyntaxError('JSON.parse'); }; } } ());
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