How do I load BDC data from a BDC URL? - sharepoint

I am doing this in SharePoint 2010, but wouldn't be surprised if the problem exists in SharePoint 2007 and has the same solution.
I have a runtime security trimmer on my BDC data. I was expecting the security trimmer to give me URLs based off of the "default" profile URL defined in the model. Unfortunately, that is not the case. It gives me a URL like:
bdc3://amms_amms/default/00000000%252d0000%252d0000%252d0000%252d000000000000/1971/amms/1973?s_id=ibqaaaaaaaaa=&s_ce=07nk0004080g10003o03vvf
I need to get the properties of this object (really just the primary key value). Any idea how I do this with the BDC object model? The following link seems to provide some help, but I haven't seen anything that consumes the URL above.
http://msdn.microsoft.com/en-us/library/ee556400.aspx
Update: I see that SharePoint 2007 has an AccessChecker (http://msdn.microsoft.com/en-us/library/aa981124.aspx) and 2010 likely has this as well (can't find good documentation for 2010 on this). We can't easily have security descriptors in the database, but the AccessChecker method might suffice.
Digging a little further I see that Microsoft.Office.Server.Search.Connector.BDC.BdcSecurityTrimmer is what is likely what is used by the AccessChecker in SharePoint 2010. It appears that this does a query to the DB per URL. Seems inefficient even if it does do it on multiple threads (which the 2007 documentation claims to do). I think I would prefer to batch up the information into a single web service call, but am on the fence...

OK, here's a simplification of my previous answer. It appears that you can totally avoid reflection:
using Microsoft.BusinessData.Runtime;
using Microsoft.Office.Server.Search.Connector;
using Microsoft.Office.Server.Search.Query;
private string[] GetIds(IList<string> documentCrawlUrls)
{
string[] ids = new String[documentCrawlUrls.Count];
for (int i = 0; i < documentCrawlUrls.Count; i++)
{
try
{
string url = documentCrawlUrls[i];
string id = new Microsoft.Office.Server.Search.Connector.UriParser(new Uri(url)).QueryStringParameters["s_id"];
ids[i] = Identity.Deserialize(id).GetIdentifierValues()[0].ToString();
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine("Error: " + ex.Message);
}
}
return ids;
}
Note that I tried avoiding using the UriParser from Microsoft.Office.Server.Search.Connector using code like:
string id = HttpUtility.ParseQueryString(new Uri(url).Query)["s_id"];
ids[i] = Identity.Deserialize(id.ToUpper()).GetIdentifierValues()[0].ToString();
Unfortunately, this worked for some Id's and not others. I decided not to investigate any further and just use the special UriParser. In one example the ids I was looking for were "5,20,21,7,8,6,14,19,17,18,4" but this second approach gave me "5,20,21,24581,8,24580,24588,24593,17,24592,4". That messed me up for a few minutes since the first 3 were correct.

I'm not sure it is the best approach, but I got this to work by using Reflector to reverse engineer Microsoft.Office.Server.Search.Connector.BDC.BdcSecurityTrimmer. I only needed the identity value so that simplified this a little.
Below is my code that takes an array of documentCrawlUrls provided to the security trimmer and translates them into an array of primary keys as defined in my BDC model file. Once I have those I can determine the security trimming using more custom .NET code.
In CheckAccess() of my security trimmer (ISecurityTrimmer2) I have:
String[] ids = GetIds(documentCrawlUrls);
Then I have the following private method:
private string[] GetIds(IList<string> documentCrawlUrls)
{
string[] ids = new String[documentCrawlUrls.Count];
for (int i = 0; i < documentCrawlUrls.Count; i++)
{
try
{
string url = documentCrawlUrls[i];
Identity identity = null;
IEntity entity = null;
ILobSystemInstance lsi = null;
ParseUri(url, out entity, out identity, out lsi);
if (identity != null)
{
object[] values = identity.GetIdentifierValues();
if (values.Length > 0)
{
ids[i] = values[0].ToString();
}
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine("Error: " + ex.Message);
}
}
return ids;
}
I didn't want to rewrite the SPBdcUri class and it is internal, so I cheat with reflection. I currently only use one of the out parameters so I can improve on efficiency. I may re-write the portions of SPBdcUri that I need instead of resorting to reflection.
private void ParseUri(string crawlUri, out IEntity entity, out Identity identity, out ILobSystemInstance lsi)
{
//SPBdcUri uri = new SPBdcUri(new Uri(crawlUri));
AssemblyName assemblyName = new AssemblyName("Microsoft.Office.Server.Search.Connector, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c");
Assembly assembly = Assembly.Load(assemblyName);
Type spBdcUriType = assembly.GetType("Microsoft.Office.Server.Search.Connector.BDC.SPBDC.SPBdcUri");
object uri = Activator.CreateInstance(spBdcUriType,
BindingFlags.NonPublic | BindingFlags.Instance,
null, new object[] { new Uri(crawlUri) }, System.Globalization.CultureInfo.CurrentCulture);
//uri.DoOverrideBDCThrottlingLimits = false;
spBdcUriType.InvokeMember("DoOverrideBDCThrottlingLimits",
BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.SetProperty,
null, uri, new object[] { false });
//entity = uri.Entity;
object entityObj = spBdcUriType.InvokeMember("Entity",
BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty,
null, uri, null);
entity = (IEntity)entityObj;
//identity = uri.Identity;
object identityObj = spBdcUriType.InvokeMember("Identity",
BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty,
null, uri, null);
identity = (Identity)identityObj;
//lsi = uri.LobSystemInstance;
object lsiObj = spBdcUriType.InvokeMember("LobSystemInstance",
BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty,
null, uri, null);
lsi = (ILobSystemInstance)lsiObj;
}
Oh, here's my "using" statements:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using Microsoft.BusinessData.MetadataModel.Collections;
using Microsoft.BusinessData.MetadataModel;
using Microsoft.BusinessData.Runtime;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Administration;
using Microsoft.SharePoint.BusinessData.SharedService;
using Microsoft.Office.Server.Search.Query;

Related

Azure Table Storage Warning - WCF Data Services obsolete

After upgrading to the new storage API version 4.2, I'm getting the following warning that I'm calling obsolete methods on some of my segmented queries.
'Microsoft.WindowsAzure.Storage.Table.CloudTableClient.GetTableServiceContext()'
is obsolete: 'Support for accessing Windows Azure Tables via WCF Data
Services is now obsolete. It's recommended that you use the
Microsoft.WindowsAzure.Storage.Table namespace for working with
tables.'
So far I haven't been able to figure out how to achieve this on the new API, and no examples have been put out that I have been able to find. The legacy code still runs fine, but if the new API supports something better I'd love to check it out and get rid of this warning. Could someone point me in the right direction on how a segmented query like this would look using the new API?
Here is what my code currently looks like with the warning:
public AzureTablePage<T> GetPagedResults<T>(Expression<Func<T, bool>> whereCondition, string ContinuationToken, int PageSize, string TableName) {
TableContinuationToken token = GetToken(ContinuationToken);
var query = AzureTableService.CreateQuery<T>(TableName).Where(whereCondition).Take(PageSize).AsTableServiceQuery(AzureTableClient.GetTableServiceContext());
var results = query.ExecuteSegmented(token, new TableRequestOptions() { PayloadFormat = TablePayloadFormat.JsonNoMetadata });
if (results.ContinuationToken != null) {
return new AzureTablePage<T>() { Results = results.ToList(), HasMoreResults = true, ContinuationToken = string.Join("|", results.ContinuationToken.NextPartitionKey, results.ContinuationToken.NextRowKey) };
} else {
return new AzureTablePage<T>() { Results = results.ToList(), HasMoreResults = false };
}
}
public TableServiceContext AzureTableService {
get {
var context = AzureTableClient.GetTableServiceContext();
context.IgnoreResourceNotFoundException = true;
return context;
}
}
public CloudTableClient AzureTableClient {
get {
return mStorageAccount.CreateCloudTableClient();
}
}
Solution
For anyone with the same question, here is the updated code.
/* Add the following Using Statement */
using Microsoft.WindowsAzure.Storage.Table.Queryable;
public AzureTablePage<T> GetPagedResults<T>(Expression<Func<T, bool>> whereCondition, string ContinuationToken, int PageSize, string TableName) where T : class, ITableEntity, new() {
TableContinuationToken token = GetToken(ContinuationToken);
var query = AzureTableClient.GetTableReference(TableName).CreateQuery<T>().Where(whereCondition).Take(PageSize).AsTableQuery();
var results = query.ExecuteSegmented(token, new TableRequestOptions() { PayloadFormat = TablePayloadFormat.JsonNoMetadata });
if (results.ContinuationToken != null) {
return new AzureTablePage<T>() { Results = results.ToList(), HasMoreResults = true, ContinuationToken = string.Join("|", results.ContinuationToken.NextPartitionKey, results.ContinuationToken.NextRowKey) };
} else {
return new AzureTablePage<T>() { Results = results.ToList(), HasMoreResults = false };
}
}
Please see the Tables Deep Dive blog post that we published when we first introduced the new Table Service Layer. If you need LINQ support, please also see the Azure Storage Client Library 2.1 blog post.
We strongly recommend upgrading to Table Service Layer, because it is optimized for NoSQL scenarios and therefore provides much better performance.

Access is denied Exception when updating List items using SPUserToken

I try to do some actions on Sharepoint 2010 list using an unlowed user( having only read right) and i got Access denied exception.
Is it possible to do it whithout changing the user rights.
please find below my code:
public void StartWorkFlow(int itemID, int wfTemplateID, String entityName, String userShortname)
{
SPSecurity.RunWithElevatedPrivileges(delegate()
{
SPUser spUser;
using (site = new SPSite(siteUrl))
{
using (web = site.RootWeb)
{
spUser = web.EnsureUser(userShortname);
}
}
using (site = new SPSite(siteUrl, spUser.UserToken))
{
using (web = site.AllWebs["WPrs"])
{
list = web.Lists["Workflow Template"];
SPListItem item = list.Items.GetItemById(wfTemplateID);
SPList processList = web.Lists["List Process " + item["Template_x0020_Name"]];
SPListItem newInstance = processList.Items.Add();
newInstance["Template_x0020_Name"] = item["Template_x0020_Name"];
newInstance["Template_x0020_Description"] = item["Template_x0020_Description"];
newInstance["Date_x0020_De_x0020_Publication"] = item["Date_x0020_De_x0020_Publication"];
newInstance["Item_x0020_Id"] = itemID;
newInstance["Item_x0020_Extradata"] = entityName.ToLower() + "||Parameter||" + "";
newInstance["CTName"] = Utility.GetInstance().GetSuperItemNameBySubItemName(entityName);
web.AllowUnsafeUpdates = true;
newInstance.Update();
web.AllowUnsafeUpdates = false;
}
}
});
}
Thank you in advance.
To be able to use site.AllWebs the user must have Full Control to the site. Instead of using AllWebs try to get the sub sites using the following code -
SPWebCollection subwebs = CurrentSite.OpenWeb().GetSubwebsForCurrentUser();
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spweb.getsubwebsforcurrentuser%28v=office.12%29.aspx
http://social.msdn.microsoft.com/Forums/sharepoint/en-US/e7ff284f-fe4b-42fb-8b21-a475e331a18c/access-denied-for-user-with-contribute-rights?forum=sharepointdevelopmentlegacy
Also you would not be able to update a listitem with read only rights.
If the only requirement is to set up the Created By/Modified By field - you should be able to overwrite default value by using SystemUpdate instead of Update. But still you need to run this RunWithElevatedPrivileges mode instead of UserToken
Although I'm not sure what will happen if have any other dependent actions after this update (event receivers or workflows) i'm not sure what context it will use (i.e. if SharePoint internally will use current SPWeb.CurrentUser object.

Dynamics CRM SDK - IN operator for linq with OrganizationServiceContext

I'm using my OrganizationServiceContext implementation generated by the svcutil to retrieve entities from CRM:
context.new_productSet.First(p => p.new_name == "Product 1");
Is it possible to retrieve multiple entities with different attribute values at once - (smth like IN operator in SQL)?
Example: I would like to retrieve multiple products ("Product 1", "Product 2", ...) with a single call. The list of product names is dynamic, stored in an array called productNames.
No, you can't. CRM LINQ provider only allows variables to appear on the left side of expressions, while the right side must contain constants.
i.e.
Product.Where(e => e.Name == desiredName)
Is not supported and won't work (it will complain about using a variable on the right side of the comparison).
If you cannot avoid this kind of query, you have to .ToList() data first (this can lead to a huge result set and will probably turn up to be unconceivably slow):
Product.ToList().Where(e => e.Name == desiredName)
This will work, because now the .Where() is being applied on a List<> instead.
Another approach (I don't have data about performance, though) would be to create many queries, basically fetching the records one at a time:
// ... this is going to be a nightmare ... don't do it ...
var entities = new List<Product>();
entities.Add(Product.Where(e => e.Name == "Product 1"));
entities.Add(Product.Where(e => e.Name == "Product 2"));
Or use a QueryExpression like this (my personal favourite, because I always go late-bound)
var desiredNames = new string[]{"Product 1", "Product 2"};
var filter = new FilterExpression(LogicalOperator.And)
{
Conditions =
{
new ConditionExpression("name", ConditionOperator.In, desiredNames)
}
};
var query = new QueryExpression(Product.EntityLogicalName)
{
ColumnSet = new ColumnSet(true),
Criteria = filter
};
var records = service.RetrieveMultiple(query).Entities;
If combining Linq and Lambda expression is ok, it can be done. First you need to create an extension method:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
namespace Kipon.Dynamics.Extensions.IQueryable
{
public static class Methods
{
public static IQueryable<TSource> WhereIn<TSource, TValue>(this IQueryable<TSource> source, Expression<Func<TSource, TValue>> valueSelector, IEnumerable<TValue> values)
{
if (null == source) { throw new ArgumentNullException("source"); }
if (null == valueSelector) { throw new ArgumentNullException("valueSelector"); }
if (null == values) { throw new ArgumentNullException("values"); }
var equalExpressions = new List<BinaryExpression>();
foreach (var value in values)
{
var equalsExpression = Expression.Equal(valueSelector.Body, Expression.Constant(value));
equalExpressions.Add(equalsExpression);
}
ParameterExpression p = valueSelector.Parameters.Single();
var combined = equalExpressions.Aggregate<Expression>((accumulate, equal) => Expression.Or(accumulate, equal));
var combinedLambda = Expression.Lambda<Func<TSource, bool>>(combined, p);
return source.Where(combinedLambda);
}
}
}
With this method in place, you can now use it against your context. First remember to import the namespace of the extension to make the method available on IQueryable:
using System.Linq;
using Kipon.Dynamics.Extensions.IQueryable;
public class MyClass
{
void myQueryMethod(CrmContext ctx, Guid[] contacts)
{
var accounts = (from a in ctx.accountSet.WhereIn(ac => ac.primarycontactid.id,contacts)
where a.name != null
select a).toArray();
}
}
There is no way you can hook into the Dynamics 365 Linq expression compiler, as far as I know, but the above code will execute in one request against the CRM, and take advantage
of the fact that you do not need to consider paging and more when working with Linq.
As you can see, there whereIn clause is added with a lambda style expression, where the rest of the query is using the Linq style.
When using QueryExpression, we can add condtionexpression for where clause. ConditionExpression takes a ConditionOperator enumerator, and we can use ConditionOperator.In. Below is how you initiate a conidtionExpression with an “In” operator, the third argument can be an array or collection.
ConditionExpression ce = new ConditionExpression("EntityName",
ConditionOperator.In, collectionObject);
Please see below for further explanation.
http://msdn.microsoft.com/en-us/library/microsoft.xrm.sdk.query.conditionexpression.conditionexpression.aspx
I do not know how to do this with Linq, as far as I know it is not possible.
It can be done with Query Expressions:
String[] productNames = new[] { "test1", "test2" };
QueryExpression products = new QueryExpression(Product.EntityLogicalName);
products.ColumnSet = new ColumnSet("name", "new_att1", "new_att2"); // fields to get
products.Criteria.AddCondition("name", ConditionOperator.In,
productNames.Cast<Object>().ToArray()); // filter by array
EntityCollection res = service.RetrieveMultiple(products);
IEnumerable<Product> opportunities = res.Entities
.Select(product => product.ToEntity<Product>()); // you can use Linq again from here

QueryExpression with no results in Dynamics CRM plugin

I wrote the following function to get the SharePointDocumentLocation records regarding an account or contact. However, even though I provide an id which most definitely has got a SPDL record associated the result of a count on the EntityCollection that is returned is alway 0. Why does my query not return SPDL records?
internal static EntityCollection GetSPDocumentLocation(IOrganizationService service, Guid id)
{
SharePointDocumentLocation spd = new SharePointDocumentLocation();
QueryExpression query = new QueryExpression
{
EntityName = "sharepointdocumentlocation",
ColumnSet = new ColumnSet("sharepointdocumentlocationid"),
Criteria = new FilterExpression
{
Conditions =
{
new ConditionExpression
{
AttributeName = "regardingobjectid",
Operator = ConditionOperator.Equal,
Values = { id }
}
}
}
};
return service.RetrieveMultiple(query);
}
The following code does work
using System;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using System.ServiceModel.Description;
using System.Net;
using Microsoft.Xrm.Sdk.Query;
namespace CRMConsoleTests
{
class Program
{
static void Main(string[] args)
{
ClientCredentials credentials = new ClientCredentials();
credentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials;
Uri orgUri = new Uri("http://localhost/CRMDEV2/XRMServices/2011/Organization.svc");
Uri homeRealmUri = null;
using (OrganizationServiceProxy service = new OrganizationServiceProxy(orgUri, homeRealmUri, credentials, null))
{
//ConditionExpression ce = new ConditionExpression("regardingobjectid", ConditionOperator.Equal, new Guid(""));
QueryExpression qe = new QueryExpression("sharepointdocumentlocation");
qe.ColumnSet = new ColumnSet(new String[] { "sharepointdocumentlocationid", "regardingobjectid" });
//qe.Criteria.AddCondition(ce);
EntityCollection result = service.RetrieveMultiple(qe);
foreach (Entity entity in result.Entities)
{
Console.WriteLine("Results for the first record: ");
SharePointDocumentLocation spd = entity.ToEntity<SharePointDocumentLocation>();
if (spd.RegardingObjectId != null)
{
Console.WriteLine("Id: " + spd.SharePointDocumentLocationId.ToString() + " with RoId: " + spd.RegardingObjectId.Id.ToString());
}
}
Console.ReadLine();
}
}
}
}
It retrieves 4 records, and when I debug the plugincode above it retrieves 3 records.
Everything looks good with your QueryExpression, although I'd write it a little more concise (something like this):
var qe = new QueryExpression(SharePointDocumentLocation.EntityLogicalName){
ColmnSet = new ColumnSet("sharepointdocumentlocationid"),
};
qe.Criteria.AddCondition("regardingobjectid", ConditionOperator.Equal, id);
Because I don't see anything wrong with the QueryExpression that leads me with two guesses.
You're using impersonation on the IOrganizationService and the impersonated user doesn't have rights to the SharePointDocumentLocation. You won't get an error, you just won't get any records returned.
The id you're passing in is incorrect.
I'd remove the Criteria and see how many records you get back. If you don't get all of the records back, you know your issue is with guess #1.
If you get all records, add the regardingobjectid to the ColumnSet and retrieve the first record without any Criteria in the QueryExpression, then call this method passing in the id of the regardingobject you returned. If nothing is received when adding the regardingobjectid constraint, then something else is wrong.
Update
Since this is executing within the delete of the plugin, it must be performing its cascade deletes before your plugin is firing. You can try the Pre-Validation.
Now that I think of it, it must perform the deletion of the cascading entities in the Validation stage, because if one of them is unable to be deleted, the entity itself can't be deleted.

Dynamics CRM - Accessing Custom Product Option Value

Is there a way to programmatically access the Label & Value fields that has been created as a custom Field in MS CRM Dynamics please?
I have added a custom field called "new_producttypesubcode" which, for example, has 2 options, Trophy = 1000000 and Kit = 10000001.
I am writing an import utility that mirrors products between the customers website and their CRM and I want to get a list of all possible product options in the CRM to see if they are matched in the website.
So, in essence I want to...
get the list of possible new_producttypesubcodes and their corresponding values.
Iterate through the product variants in the website.
if the product variant name matches any name in the list of new_producttypecodes then add the value 1000000
So, if I find a product added to the website and its marked as a "Trophy" and "Trophy" exists in the CRM then new OptionSetValue(100000001)
I hope that makes sense...
Thanks
This function retrieves a dictionary of possible values localised to the current user. Taken from: CRM 2011 Programatically Finding the Values of Picklists, Optionsets, Statecode, Statuscode and Boolean (Two Options).
static Dictionary<String, int> GetNumericValues(IOrganizationService service, String entity, String attribute)
{
RetrieveAttributeRequest request = new RetrieveAttributeRequest
{
EntityLogicalName = entity,
LogicalName = attribute,
RetrieveAsIfPublished = true
};
RetrieveAttributeResponse response = (RetrieveAttributeResponse)service.Execute(request);
switch (response.AttributeMetadata.AttributeType)
{
case AttributeTypeCode.Picklist:
case AttributeTypeCode.State:
case AttributeTypeCode.Status:
return ((EnumAttributeMetadata)response.AttributeMetadata).OptionSet.Options
.ToDictionary(key => key.Label.UserLocalizedLabel.Label, option => option.Value.Value);
case AttributeTypeCode.Boolean:
Dictionary<String, int> values = new Dictionary<String, int>();
BooleanOptionSetMetadata metaData = ((BooleanAttributeMetadata)response.AttributeMetadata).OptionSet;
values[metaData.TrueOption.Label.UserLocalizedLabel.Label] = metaData.TrueOption.Value.Value;
values[metaData.FalseOption.Label.UserLocalizedLabel.Label] = metaData.FalseOption.Value.Value;
return values;
default:
throw new ArgumentOutOfRangeException();
}
}
So you would then need to do something like:
Dictionary<String, int> values = GetNumericValues(proxy, "your_entity", "new_producttypesubcode");
if(values.ContainsKey("Trophy"))
{
//Do something with the value
OptionSetValue optionSetValue = values["Trophy"];
int value = optionSetValue.Value;
}
Yes, that data is all stored in the metadata for an attribute (SDK article). You have to retrieve the entity metadata for the entity and then find the attribute in the list. Then cast that attribute to a PicklistAttributeMetadata object and it will contain a list of options. I would mention that typically retrieving Metadata from CRM is an expensive operation, so think about caching.
private static OptionSetMetadata RetrieveOptionSet(IOrganizationService orgService,
string entityName, string attributeName)
{
var entityResponse = (RetrieveEntityResponse)orgService.Execute(
new RetrieveEntityRequest
{ LogicalName = entityName, EntityFilters = EntityFilters.Attributes });
var entityMetadata = entityResponse.EntityMetadata;
for (int i = 0; i < entityMetadata.Attributes.Length; i++)
{
if (attributeName.Equals(entityMetadata.Attributes[i].LogicalName))
{
if (entityMetadata.Attributes[i].AttributeType.Value ==
AttributeTypeCode.Picklist)
{
var attributeMD = (PicklistAttributeMetadata)
entityMetadata.Attributes[i];
return attributeMD.OptionSet;
}
}
}
return null;
}
Here is how to write the options to the console using the above call.
var optionSetMD = RetrieveOptionSet(orgService, "account", "accountcategorycode");
var options = optionSetMD.Options;
for (int i = 0; i < options.Count; i++)
{
Console.WriteLine("Local Label: {0}. Value: {1}",
options[i].Label.UserLocalizedLabel.Label,
options[i].Value.HasValue ? options[i].Value.Value.ToString() : "null");
}
I believe this works for global option set attributes as well, but if you know it is a global option set there is a different message for it that would probably a bit more efficient (SDK article).

Resources