I would like to know how the PersonID string (obtained after a call to the PersonGroup Person – Create method of the Face API) is computed. In particular, I would like to know if any information (such as the fields “name” and “userData” for example) can be recovered from it without calling the specific API function Person Group Person – Get.
Thanks in advance.
PersonID string is just a GUID here . If you create a persion, Azure Face service will provide you with an GUID as the ID of that person. As an identifier , PersonID has none business with person details such as “name” and “userData” .
If you want to get some info of a persion , I am afraid using API function Person Group Person – Get is the only way .
If you mean getting the information back that you put into the create() method parameters, yes you can get that from the client.person_group_person.create() results.
The create() method of PersonGroupPerson has the following fields as parameters: person_group_id, name, user_data, custom_headers, raw, and operation_config. So you can add values to those when you create a new PersonGroupPerson. Once this method is called, a Person object is returned with these properties: name, user_data, person_id, persisted_face_ids. So for example, this is what you could do:
# Create a new Person object and add that image to it.
new_person = client.person_group_person.create(person_group_id, name)
img = open(image_name, 'rb')
# Add the new person to your Person object and your person group
face_client.person_group_person.add_face_from_stream(person_group_id, new_person.person_id, img)
print('New Person Created:', new_person.name)
In the above example, you get person_id and name from the results of your create() call. So, whatever parameters you add in create(), can be retrieved from the result.
However, this is just general Person information, you have not yet added images (faces) of this person to this Person object yet, unless you call add_face_from_stream() or add_face_from_url().
If you are wondering how the person ID is created, Microsoft has some of their source code available in Github.
Person Group Person operations: https://github.com/Azure/azure-sdk-for-python/blob/master/sdk/cognitiveservices/azure-cognitiveservices-vision-face/azure/cognitiveservices/vision/face/operations/_person_group_person_operations.py
Person class (line 1213): https://github.com/Azure/azure-sdk-for-python/blob/master/sdk/cognitiveservices/azure-cognitiveservices-vision-face/azure/cognitiveservices/vision/face/models/_models.py
Related
I have the following model:
User
...
Group
...
Sharing
objectId (Either UserId GroupId)
In Sharing entity I want to store either UserId or GroupId and differentiate between them. Simply using Either doesn't work:
Not in scope: type constructor or class `UserId'
Not in scope: type constructor or class `GroupId'
Adding a new sum-type also doesn't work:
data SharingIdType = SharingUserId UserId | SharingGroupId GroupId
Not in scope: type constructor or class `SharingIdType'
Moving SharingIdType into another module isn't possible, because it uses UserId and GroupId types. The only way I see is to create an entity for each sharing type, like UserSharing/GroupSharing.
Other than that, how to approach this problem?
After searching for some time and thinking about it I concluded there are two possible solutions:
1.
If number of SharingIdTypes is static or rarely changes (means, it is OK to recompile the source to change it or alter the DB schema), the proper way to handle the problem is to have to entities for each sharing type:
User
...
Group
...
UserSharing
userId UserId
GroupSharing
groupId GroupId
Here the "sumness" of the problem is moved to DB queries. Whenever I need to find out with what something shared, I make two selectLists and query two tables instead of one.
2.
If number of SharingIdTypes needs to be altered dynamically, the SharingType entity is needed:
User
...
Group
...
SharingType
description String
Sharing
objectId SharingTypeId
This table is filled up with values corresponding to SharingIdTypes constructors:
do
insert $ SharingType "user"
insert $ SharingType "group"
Now whenever we share something, we refer SharingTypeId.
I went through all API documentation of Yii 2.0 to find a way to reverse back to relation class name from a model attribute.
let us suppose that class Customer has a relation
$this->hasOne(Country::className(), ['id' => 'countryId']);
and in a controller function the parameter was the attribute "countryId". How is it possible to detect the class name for the related model
Get the name of the class by removing Id from the end of the variable and capitalize it. But I cannot image any situation where this would be a normal development practice. You can also define am array to make this translation for the model.
You can try to use http://php.net/manual/en/intro.reflection.php to get the names of all the functions and try to guess the name of the relation / model based on the name of the field. If you name your classes and relation fields in a proper name then you should be able to try to again guess the model.
This still feels like a hack, create a function that returns the name of the model based on the field... easiest solution. I know you try to be lazy but this is a hacky way of programming.
I'm not very clear on what data you have to start with here. If you only have a column countryId I am not sure. But say you have the relation name 'country' and the following code in your Customer model:
public function getCountry()
{
return $this->hasOne(Country::className(), ['id' => 'countryId']);
}
This is what I would do:
$relationName = 'country';
$customer = new Customer;
$relation = $customer->getRelation($relationName);
$relationModelClass = $relation->modelClass;
You could look at \yii\db\ActiveQuery::joinWithRelations() for how they do it.
Do you know is there any like a global reference book of MS CRM entities in the system?
I need to resolve entity id to the entity type without checking every single entity for presence of given GUID.
Is it possible?
I don't know of any supported way, but I believe you could to a SQL query on the PrincipalObjectAccess table in the database and retrieve the value of ObjectTypeCode where ObjectId is the GUID.
For annotation you need to look at the field objecttypecode to determine the entity type of objectid.
You can either generate a list of entity logical names and object type codes in your code as a Dictionary object (this will give you the fastest performance but requires you know all the entity types that will be in the system at the time you compile) or (if you are on CRM 2011 UR12+ or CRM 2013) you can do a MetadataQuery.
You can read more about doing a metadata query here: http://bingsoft.wordpress.com/2013/01/11/crm-2011-metadata-query-enhancements/
Sample code for your requirement:
var objTypeCode = [INTEGER] //Make this this the annotation.objecttypecode
MetadataFilterExpression entityFilter = new MetadataFilterExpression(LogicalOperator.And);
EntityFilter.Conditions.Add(new MetadataConditionExpression("ObjectTypeCode", MetadataConditionOperator.Equals, objTypeCode);
EntityQueryExpression entityQueryExpression = new EntityQueryExpression()
{
Criteria = entityFilter
};
RetrieveMetadataChangesRequest retrieveMetadataChangesRequest = new RetrieveMetadataChangesRequest()
{
Query = entityQueryExpression,
ClientVersionStamp = null
};
RetrieveMetadataChangesResponse response = (RetrieveMetadataChangesResponse)orgService.Execute(retrieveMetadataChangesRequest);
You can reduce the metadata retrieved, for better performance, as shown here: How to get the CRM Entity Name from the Object Type Code of a RegardingID?
Background: Project is a Data Import utility for importing data from tsv files into a EF5 DB through DbContext.
Problem: I need to do a lookup for ForeignKeys while doing the import. I have a way to do that but the retrieval if the ID is not functioning.
So I have a TSV file example will be
Code Name MyFKTableId
codevalue namevalue select * from MyFKTable where Code = 'SE'
So when I process the file and Find a '...Id' column I know I need to do a lookup to find the FK The '...' is always the entity type so this is super simple. The problem I have is that I don't have access to the properties of the results of foundEntity
string childEntity = column.Substring(0, column.Length - 2);
DbEntityEntry recordType = myContext.Entry(childEntity.GetEntityOfReflectedType());
DbSqlQuery foundEntity = myContext.Set(recordType.Entity.GetType()).SqlQuery(dr[column])
Any suggestion would be appreciated. I need to keep this generic so we can't use known type casting. The Id Property accessible from IBaseEntity so I can cast that, but all other entity types must be not be fixed
Note: The SQL in the MyFKTableId value is not a requirement. If there is a better option allowing to get away from SqlQuery() I would be open to suggestions.
SOLVED:
Ok What I did was create a Class called IdClass that only has a Guid Property for Id. Modified my sql to only return the Id. Then implemented the SqlQuery(sql) call on the Database rather than the Set([Type]).SqlQuery(sql) like so.
IdClass x = ImportFactory.AuthoringContext.Database.SqlQuery<IdClass>(sql).FirstOrDefault();
SOLVED:
Ok What I did was create a Class called IdClass that only has a Guid Property for Id. Modified my sql to only return the Id. Then implemented the SqlQuery(sql) call on the Database rather than the Set([Type]).SqlQuery(sql) like so.
IdClass x = ImportFactory.AuthoringContext.Database.SqlQuery<IdClass>(sql).FirstOrDefault();
I've an entity with assigned string Id on NHibernate and I've a little problem when get an entity by Id.
Example...
Suppose that have a database record like this...
Id Description
-------------------
AAA MyDescription
now, if I use "Get" method using search id "aaa"...
MYENTITYTYPE entity = Session.Get<MYENTITYTYPE>("aaa")
return right entity but Id field (entity.Id) is "aaa", while I wish it were equal to "AAA".
In summary I would like that "Get" method return the id identical to the one stored in the database...with the same case.
Is possible? How can I do?
Interesting question. My guess is that it's not possible, because the Id might exist before the DB call. Consider the following:
var foo = session.Load<Foo>("aaa"); //no DB call, foo is a proxy
Console.WriteLine(foo.Id); //Prints "aaa";
var bar = foo.Bar; //Forces loading
Console.WriteLine(foo.Id); //No matter what, the Id can't change at this point
This illustrates another reason why primary keys with meaning are usually a bad idea, especially if their input is not controlled.
Now, if instead of Get you use a query, you will get the right-cased Id:
//example with LINQ; you can use HQL, Criteria, etc
var foo = session.Query<Foo>().Single(x => x.Id == "aaa");
The drawback is that you will always go to the DB, even if the entity is already loaded.
Now, if you defined your entity as {Id, Code, Description}, where Id is a synthetic POID (I recommend Hilo or Guid) and Code is the existing string Id, you will avoid potential bugs caused by using Get instead of a query with the code.