I am trying to retrieve the attribute name and type that exist in an entity, Dynamic Entity to be precise. I have the following code.
DynamicEntity contactEntity = new DynamicEntity();
contactEntity.Name = EntityName.contact.ToString();
Property t = null;
foreach (Property prop_Test in contactEntity.Properties)
{
Response.Write("<br/>Name : " + prop_Test.Name.ToString());
}
I am getting the properties count as 0.
Is it mandatory for me to pass an id to the contact entity. Because i am trying to map attributes from the entity to the attributes i get from an excel file. The end user themselves would be doing the mapping so all i need are the attribute name and type and nothing else. For instance in SQL we have the query
SELECT * FROM TABLE_NAME WHERE 1 <> 1
This query basically returns an empty resultset with only the fieldnames. That is what i am looking for here. Is it even possible ?
In your example above, the dynamic entity does not have any properties set on it. The dynamic entity is a special type in MS CRM that is used when you do not know the CRM type until runtime. If you add properties to the dynamic entity and run your example, you will get however many properties returned that you define.
In order to get the contact attributes, you will need to reference the CRM Metadata Service as explained in the SDK.
There is an example within this download in the HowTo section that shows how to get out the entity and attribute metadata.
Related
I'm following Sulu example here: https://github.com/sulu/sulu-workshop/
trying to set translations for custom entity type.
My entity file has getter for field "home_team" defined like:
/**
* #Serializer\VirtualProperty(name="home_team")
*/
public function getHomeTeam(): ?string
{
$translation = $this->getTranslation($this->locale);
if (!$translation) {
return null;
}
return $translation->getHomeTeam();
}
So field is not actually part of that entity, but of it's translation entity since it suppose to be translatable.
When I try to create new object of that entity type it works well. I can see in database that field values are stored well and I don't get any error.
But on overview page instead of list of all objects I get error:
[Semantical Error] line 0, col 73 near 'home_team AS': Error: Class App\Entity\MatchEvent has no field or association named home_team
Any idea what could be wrong here?
If you wanna see the translation in the listView you have to create a real translationEntity, like in the workshop project. In this post it is already explained, how to translate a custom entity correctly.
If you have already created your translationEntity you have to configure the relation of the translation to your main entity via a join. Here is an example in the workshop for this configuration.
Sulu uses optimised queries to create the list-object directly from the database. So the entity itself does not get hydrated or serialised for performance reasons. Thus your virtualProperty is never executed.
I'm using early-bound entities, generated by CrmSvcUtil, and I'm testing the SDK by retrieving an account entity:-
var account = myContext.AccountSet.FirstOrDefault(o => o.Id == Guid.Parse("..."));
(BTW is there an easier way to retrieve an entity by ID?!)
Looking at the account object that is returned, I can see various properties of type OptionSetValue (e.g. "PreferredContactMethodCode"). How do I get the actual item from this OptionSetValue object?
Similarly, there are numerous properties of type EntityReference, which contains an Id and LogicalName (the entity name I presume). How can I populate such a property - is it one of the Get... methods? And do these have to be called separately, or is it possible to "pre-fetch" certain relationships as part of the initial query that retrieves the account entity?
Similarly with the various IEnumerable<> properties (which presumably correspond to 1-M entity relationships), e.g. a property called "opportunity_customer_accounts" of type IEnumerable. How do I populate one of these properties? And (again) does this have to be done as a separate query/method call, or can it be "pre-fetched"?
Retrieve
I'm not really sure how much simpler the retrieve operation could get but for a single record the user of the context is probably overkill. So you could retrieve a specific record where you know directly with the IOrganizationService:
account = service.Retrieve("account", Guid.Parse("..."), new ColumnSet(true));
Option Set Labels
For the OptionSet labels you can look at my answer here: How to get the option set from a field in an entity in CRM 2011 using crm sdk and C#.
If you need the label for multiple OptionSet's on an entity you may want to just retrieve the Entity's metadata once (http://srinivasrajulapudi.blogspot.com/2012/01/retrieve-entity-metadata-in-crm-2011.html):
string entityName ="contact";
// Get the metadata for the currently list's entity
// This metadata is used to create a "Property Descriptor Collection"
RetrieveEntityRequest mdRequest = new RetrieveEntityRequest ( )
{ EntityFilters = EntityFilters.All,
LogicalName = entityName,
RetrieveAsIfPublished = false
};
// Execute the request
RetrieveEntityResponse entityResponse = ( RetrieveEntityResponse ) this.ServiceProxy.Execute ( mdRequest );
EntityMetadata entityData = entityResponse.EntityMetadata;
//To Get Option Set Data
var preferdList= ( entityData.Attributes.Where ( p => p.LogicalName == "preferredcontactmethodcode" ) ).ToList ( ).FirstOrDefault ( ); ;
if ( preferdList != null ) {
PicklistAttributeMetadata optionList= preferdList as PicklistAttributeMetadata;
OptionSetMetadata opValues= optionList.OptionSet;
foreach ( var op in opValues.Options ) {
preferedMethod.Add ( new OptionSet { Value = op.Value.Value, Text = op.Label.LocalizedLabels[0].Label.ToString() } );
}
}
EntityReference()
To set an EntityReference typed field:
account.primarycontact = new EntityReference("contact", Guide.Parse("..."));
If they have a value and you requested the column in your ColumnSet() they should be populated, so I'm not really sure I understand your question. If you mean, you want the full record then you need to do a service.Retrieve(...) for the record.
Related Entities (i.e., opportunity_customer_accounts)
This is where using an OrganizationServiceContext makes life easier (https://msdn.microsoft.com/en-us/library/gg695791.aspx):
context.LoadProperty(contact, "transactioncurrency_contact");
// read related entity dynamically
var currency = contact.GetRelatedEntity("transactioncurrency_contact");
Console.WriteLine(currency.GetAttributeValue("currencyname"));
// read related entity statically
var currencyStatic = contact.transactioncurrency_contact;
Console.WriteLine(currencyStatic.CurrencyName);
If you are not using an OrganizationServiceContext you can try using a QueryExpression using LinkedEntities, although I've never done this to populate an early-bound entity so I don't know if it works (perhaps someone will add a comment with the answer.)
I want to Retrive Metadata Attributes of Entity , but XrmServiceToolkit gave me all attributes , i want to fillter only the Active Attributes that on the Form and not all attributes.
which parameter tell me if the Attribute in Form or Not in Form ?
The Metadata of an entity contains always all the attributes. Dynamics CRM 2011/2013 support multiple forms, so you need to query the specific form (SystemForm entity) and parse the formxml result to know which attributes are inside the form.
If you are executing the JavaScript inside the form you want to query, you can also access the Xrm.Page.data.entity.attributes collection without querying the metadata.
var attributes = Xrm.Page.data.entity.attributes.get();
for (var i in attributes) {
//
}
I am trying to construct an SQL statement dynamically.
My context is created dynamically, using reflection finding classes deriving from EntityTypeConfiguration and adding them to DbModelBuilder.Configuration.
My EntityTypeConfiguration classes specify HasColumnName to map the Entity property name to db table column name, which I need to construct my SQL statement.
namespace MyDomain {
public class TestEntityConfig : EntityTypeConfiguration<TestEntity>{
Property("Name").HasColumnName("dbName");
}
}
From What I have researched, it seems I can get access to this information through MetadataWorkspace, which I can get to through ObjectContext.
I have managed to retrieve the the entity I am interested in with MetadataWorkspace.GetItem("MyDomain.TestEntity",DataSpace.OSpace), which gives me access to Properties, but none of the properties, of Properties, give me the name of the mapped db column, as specified with HasColumnName.
Also I am not clear what DataSpace.OSpace is and why my model is constructed in this space.
If Anyone can shed some light on this I would be grateful
UPDATE
Further to #Ladislav's comments. I discovered I can get the information as follows
For the class properties
ctx.MetadataWorkspace.GetItem<ClrEntityType>("MyDomain.TestEntity", DataSpace.OSpace)).Members
For the table properties
ctx.MetadataWorkspace.GetItem<EntityType>("CodeFirstDatabaseSchema.TestEntity",SSpace).Members
So given that I only know the type MyDomain.TestEntity and Memeber "Name". How would I go about to get "dbName". Can I always assume that my mapped class will be created in CodeFirstDatabaseSchema, om order to dynamically construct the identity to retrieve it from SSpace and how would I get to the correct Member in SSpace. Can I do something like
var memIndex = ctx.MetadataWorkspace.GetItem<ClrEntityType>("MyDomain.TestEntity", DataSpace.OSpace)).Members["Name"].Index;
var dbName = ctx.MetadataWorkspace.GetItem<EntityType>("CodeFirstDatabaseSchema.TestEntity",SSpace).Members[memIndex];
MetadataWorkspace contanis several containers specified by DataSpace. Interesting for you are:
CSpace - description of conceptual model (this should contain properties)
CSSpace - mapping of conceptual model to storage model (this should contain how classes / properties are mapped to tables / columns)
Suppose I have a class Customer that is mapped to the database and everything is a-ok.
Now suppose that I want to retrieve - in my application - the column name that NH knows Customer.FirstName maps to.
How would I do this?
You can access the database field name through NHibernate.Cfg.Configuration:
// cfg is NHibernate.Cfg.Configuration
// You will have to provide the complete namespace for Customer
var persistentClass = cfg.GetClassMapping(typeof(Customer));
var property = persistentClass.GetProperty("FirstName");
var columnIterator = property.ColumnIterator;
The ColumnIterator property returns IEnumerable<NHibernate.Mapping.ISelectable>. In almost all cases properties are mapped to a single column so the column name can be found using property.ColumnInterator.ElementAt(0).Text.
I'm not aware that that's doable.
I believe your best bet would be to use .xml files to do the mapping, package them together with the application and read the contents at runtime. I am not aware of an API which allows you to query hibernate annotations (pardon the Java lingo) at runtime, and that's what you would need.
Update:
Judging by Jamie's solution, NHibernate and Hibernate have different APIs, because the Hibernate org.hibernate.Hibernate class provides no way to access a "configuration" property.