CODEWITHSUNDEEP
codefluent
Willem
Willem

Reputation: 111

How to produce a nullable property in the lightweight entity for a database view?

My model contains the following entity:

<cf:entity name="SomeEntity">
  <cf:property name="Id" key="true" />
  <cf:property name="SomeDate" typeName="date?" />

  <cf:view name="SomeEntitySummary" autoLightweight="true" checkLevel="none">
    <cf:viewProperty name="Id" />
    <cf:viewProperty name="SomeDate" nullable="true" typeName="date?" />
  </cf:view>
</cf:entity>

The produced code for the SomeEntity class contains a SomeDate property of type

Nullable<DateTime>

However, the produced code for the SomeEntitySummary class contains a SomeDate property of type DateTime and is not nullable.

How can I produce a nullable property in the lightweight entity that is produced for the database view?

Upvotes: 1

Views: 55

Answers (1)

meziantou
meziantou

Reputation: 21347

CodeFluent Entities infer views from the properties of the entity. So, if the property is nullable, the property of the view should also be nullable. However, it seems there is a small issue, so you must declare the property as modelNullable explicitly (the modeler generates the right xml).

The following model does generate a DateTime? property in the SomeView class:

<cf:entity name="Customer">
  <cf:property name="Id" key="true" />
  <cf:property name="Name" />
  <cf:property name="SomeDate" modelNullable="true" typeName="date" />

  <cf:view autoLightweight="true" name="SomeView">
    <cf:viewProperty name="Id" />
    <cf:viewProperty name="SomeDate" />
  </cf:view>
</cf:entity>

Upvotes: 0

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