/// <summary>
/// Builds out this field template parsing out the required type declarations unions, nameing scheme etc. This method should be
/// overridden in any child classes for additional decalration requirements.
/// </summary>
protected override void ParseTemplateDefinition()
{
// ensure type extension right out of the gate
// the field can't be built otherwise
_typeAttrib = this.SingleAttributeOfTypeOrDefault <TypeExtensionAttribute>();
if (_typeAttrib == null)
{
return;
}
_sourceType = _typeAttrib.TypeToExtend;
base.ParseTemplateDefinition();
var returnType = GraphValidation.EliminateWrappersFromCoreType(this.DeclaredReturnType);
if (returnType != typeof(IGraphActionResult))
{
// inspect the return type, if its a valid dictionary extract the return type from the value
// and set the type modifiers and method type based on the value of each dictionary entry
if (_typeAttrib.ExecutionMode == FieldResolutionMode.Batch)
{
returnType = returnType.GetValueTypeOfDictionary();
this.ObjectType = GraphValidation.EliminateWrappersFromCoreType(returnType);
this.TypeExpression = GraphValidation.GenerateTypeExpression(returnType, this);
this.PossibleTypes.Insert(0, this.ObjectType);
}
}
}
public void TypeExtension_TypeConsturctor_PropertyCheck()
{
var attrib = new TypeExtensionAttribute(typeof(AttributeDataIntegrityTests), "myField");
Assert.AreEqual("myField", attrib.Template);
Assert.AreEqual(typeof(AttributeDataIntegrityTests), attrib.TypeToExtend);
Assert.AreEqual(0, attrib.Types.Count);
}
public void TypeExtension_ReturnConsturctor_PropertyCheck()
{
var attrib = new TypeExtensionAttribute(typeof(AttributeDataIntegrityTests), "myField", typeof(string));
Assert.AreEqual("myField", attrib.Template);
Assert.AreEqual(typeof(AttributeDataIntegrityTests), attrib.TypeToExtend);
Assert.AreEqual(1, attrib.Types.Count);
Assert.IsTrue(attrib.Types.Contains(typeof(string)));
}
public void TypeExtension_UnionConstructor_PropertyCheck()
{
var attrib = new TypeExtensionAttribute(typeof(AttributeDataIntegrityTests), "myField", "myUnionType", typeof(GraphFieldAttribute), typeof(string));
Assert.AreEqual(GraphCollection.Types, attrib.FieldType);
Assert.AreEqual(typeof(AttributeDataIntegrityTests), attrib.TypeToExtend);
Assert.AreEqual("myField", attrib.Template);
Assert.AreEqual("myUnionType", attrib.UnionTypeName);
Assert.AreEqual(2, attrib.Types.Count);
Assert.AreEqual(typeof(GraphFieldAttribute), attrib.Types[0]);
Assert.AreEqual(typeof(string), attrib.Types[1]);
Assert.AreEqual(FieldResolutionMode.PerSourceItem, attrib.ExecutionMode);
}