Create an Entity through an Entity

One of the more complex properties that are exposed in a typical NetServer Entity is itself an Entity. An Entity will expose another Entity when the need arises to expose more data than what you can hold in a single field. There can be more than one way to assign a new Entity to a property that is exposed by an Entity.

Create a new Entity through a property exposed by another Entity

In this example, the Person property of the Sale Entity has been exposed as an Entity.

using SuperOffice;
using SuperOffice.CRM.Entities;
using SuperOffice.CRM.Rows;
using(SoSession newSession = SoSession.Authenticate("SAL0", ""))
{
  //create an entity
  Sale mySale = Sale.CreateNew();
  mySale.SetDefaults();

  //here we are accessing a property of another entity
  mySale.Person.Firstname = "Johnny";
  mySale.Person.Lastname = "Depp";
  mySale.Person.DayOfBirth = 09;
  mySale.Person.MonthOfBirth = 06;
  mySale.Person.YearOfBirth = 1963;
  mySale.Person.Gender = 2;

  PhoneRow numerOne = PhoneRow.CreateNew();
  numerOne.PhoneNumber = "123456";
  numerOne.Rank = 1;

  PhoneRow numbrerTwo = PhoneRow.CreateNew();
  numbrerTwo.PhoneNumber = "890112";
  numbrerTwo.Rank = 2;

  //here we are adding rows to another entities property that is exposed as a row.
  mySale.Person.MobilePhones.Add(numerOne);
  mySale.Person.MobilePhones.Add(numbrerTwo);

  //save the sale entity
  mySale.Save();
}

You can access all the properties of the Person Entity through the Sale entity as shown in the example. The MobilePhones property of the Person Entity is exposed as a PhoneRows type. Here, we create 2 new PhoneRows and add them to the PhonesRows collection.

We save only the Sale Entity. NetServer will look for other newly created Entities and save them to the appropriate tables in the database. This mechanism in NetServer is called NestedPersist.

Here, NetServer will create a new record in the person table and assign the person ID to the person ID field in the sale table so now it has the link between those tables. NetServer will also create a new row in the phone table and add the phone ID to the phone ID field of the person table. This way the NetServer maintains all the database links properly.

Create an Entity as a property of another Entity

Above, we used a property exposed by another Entity when creating a new Entity. Here, we will create the new Entity separately and then assign it to a property of another Entity.

using SuperOffice.CRM.Entities;
using SuperOffice;
using(SoSession newSession = SoSession.Authenticate("SAL0", ""))
{
  //create a contact entity and assign some of its properties with data
  Contact myContact = Contact.CreateNew();
  myContact.SetDefaults();
  myContact.Name = "ABC Company";

  //add two elements to the URL's collection since we are going to add two URLs
  myContact.Urls.AddNew();
  myContact.Urls.AddNew();
  myContact.Urls[0].UrlAddress1 = "ABCCompany.com";
  myContact.Urls[0].Rank = 1;
  myContact.Urls[1].UrlAddress1 = "ABCCompanyServices.com";
  myContact.Urls[1].Rank = 2;
  myContact.PostalAddress.Address1 = "P.O.Box 345";
  myContact.PostalAddress.Address2 = "Kalbakken";
  myContact.PostalAddress.Zipcode = "0901";
  myContact.PostalAddress.City = "OSLO";

  //create a project entity and assign some of its properties with data
  Project myProject = Project.CreateNew();
  myProject.SetDefaults();
  myProject.Name = "ABC Company Project";

  //create two ProjectMember instances and assign them with person
  ProjectMember memberOne = ProjectMember.CreateNew();
  memberOne.SetDefaults();
  memberOne.Person = Person.GetFromIdxPersonId(24);
  ProjectMember memberTwo = ProjectMember.CreateNew();
  memberTwo.SetDefaults();
  memberTwo.Person = Person.GetFromIdxPersonId(25);

  //here we add the two created project member to the members collection of the project entity
  myProject.Members.Add(memberOne);
  myProject.Members.Add(memberTwo);

  //create a sale entity and assign the above created entities to the respective properties
  Sale mySale = Sale.CreateNew();
  mySale.SetDefaults();
  mySale.Contact = myContact;
  mySale.Project = myProject;
  mySale.Save();
}

Since this example is a bit long and complex, it will be explained step by step. First, we create a Contact Entity that we will assign to the Sale Entity later. We give it a name.

Contact URLs

Next, we assign the 2 URLs this particular company has. You may notice that the URL property of the contact is given as a collection of URL rows, not as a single URL row. This is because one company may have many URLs, so to facilitate that, this particular property is exposed as a collection of URL rows. We are going to add 2 URLs to this company so that we create 2 blank elements in the URL rows collection using the AddNew method provided. After you have added 2 blank elements to the Rows collection, you can start filling its properties with data like we have done above using the index number of each element to access the properties. This same task can be achieved slightly differently by creating a URL row first and then adding it to the URL rows collection using the Add method.

URLRow urlOne = URLRow.CreateNew();
urlOne.SetDefaults();
urlOne.UrlAddress1 = "ABCCompany.com";
urlOne.Rank = 1;
URLRow urlTwo = URLRow.CreateNew();
urlTwo.UrlAddress1 = "ABCCompanyServices.com";
myContact.Urls.Add(urlOne);
myContact.Urls.Add(urlTwo);

This is how you create a new URL and add it to the Entity. If you want to retrieve a URL that is already in the database and assign that to the Contact, here’s how:

myContact.Urls.Add(URLRow.GetFromIdxUrlId(2));
myContact.Urls.Add(URLRow.GetFromIdxUrlId(3));

Address property

The next property that we are going to populate with data is the Address. The Address property is also exposed as an Address row, but in the example, we have directly accessed the properties of the row to populate them with data. The method we have used to access the properties of the Address property, and the method we have used to access the properties of the URL property, shows the difference between how we access the properties of a Row and a Row collection. Instead of assigning data directly to the Address row, you can create an Address row and assign it to the address property.

//create a new AddressRow
AddressRow postalAddress = AddressRow.CreateNew();
postalAddress.SetDefaults();

//Assign values to its properties
postalAddress.Address1 = "P.O.Box 345";
postalAddress.Address2 = "Kalbakken";
postalAddress.Zipcode = "0901";
postalAddress.City = "OSLO";

//assign the new address to the PostalAddress property of Contact Entity
myContact.PostalAddress = postalAddress;

Project Entity

So far, we have created a Contact Entity and filled some of its interesting properties with data. Let’s create another Entity of type Project Entity. After filling some basic Entities, let’s try to add a couple of project members to the project we just created. In the example, we have created 2 new project member instances and assigned 2 Persons from the person table. Alternatively, you can create a new Person, add that Entity to the Project Member instances, and then add the instance to the Project:

Project myProject = Project.CreateNew();
Person projPerson = Person.CreateNew();
projPerson.SetDefaults();
projPerson.Firstname = "Mel";
projPerson.Lastname = "Gibson";
ProjectMember memberOne = ProjectMember.CreateNew();
memberOne.Person = projPerson;
myProject.Members.Add(memberOne);

If you want to add a Project Member that is already assigned to another Project, here’s how:

myProject.Members.Add( ProjectMember.GetFromIdxProjectmemberId(45));
myProject.Members.Add( ProjectMember.GetFromIdxProjectmemberId(69));

Final notes

We have created the 2 Entities that we intended to create and we have populated some of the properties of those Entities with data. Now, all we got to do is assign them to the respective properties of the Sale Entity and then save the Sale Entity back to the database. As in the first example, we save only the Sale Entity and let NetServer’s NestedPersist handle the rest.

​Create a new Entity through a property exposed by another Entity

​Create an Entity as a property of another Entity

​Contact URLs

​Address property

​Project Entity

​Final notes

​See also

Create a new Entity through a property exposed by another Entity

Create an Entity as a property of another Entity

Contact URLs

Address property

Project Entity

Final notes

See also