Creating the Model Class: Properties

The first step in creating our Zen MVC form for updating contact data is to create a model class:

1. Use Studio to create ZenTutorial.ContactModel. The class extends %ZEN.DataModel.ObjectDataModelOpens in a new tab:

   
   Class ZenTutorial.ContactModel Extends %ZEN.DataModel.ObjectDataModel
   {   
    
   }
    

   

2. Add the following property declarations to the class:

   
   Class ZenTutorial.ContactModel Extends %ZEN.DataModel.ObjectDataModel
   {
   Property Name As %String;
   
   Property ContactType As %String
   (ZENSQL="SELECT DISTINCT %EXACT ContactType from ZenTutorial.Contact");
   
   Property Street As %String;
   
   Property City As %String;
   
   Property State As %String;
   
   Property Zip As %String;     
   }       
   

   

   These properties all represent properties of ZenTutorial.Contact or ZenTutorial.Address. Note the ZENSQL parameter for the ContactType. This parameter uses a query to define the possible values for this property. In this case the values are: Business and Personal.