Content Model can now list form names, updated islandoracm.xsd to reflex the new form structure.

ContentModel.inc

@@ -2013,4 +2013,24 @@ class ContentModel extends XMLDatastream {
     }
     return $ret;    
   }
+
+  /**
+   *
+   * @return array
+   *    An array of form names that exist in this content model.
+   */
+  public function getFormNames() {
+    if (!$this->validate()) {
+      return FALSE;
+    }
+    $xpath = new DOMXPath($this->xml);
+    $xpath->registerNamespace('cm', 'http://www.islandora.ca');
+    $result = $xpath->query('//cm:forms/cm:form/@name'); // Select the name attribute of all forms.
+    for($i = 0; $i < $result->length; $i++) {
+      $attribute = $result->item($i);
+      $name = $attribute->value;
+      $names[$name] = $name;
+    }
+    return $names;
+  }
 }

islandoracm.xsd

@@ -344,20 +344,22 @@
 								</xsd:simpleContent>
 							</xsd:complexType>
 						</xsd:element>
-						<xsd:element name="parent_path">
+						<xsd:element name="parent_path" minOccurs="0">
 							<xsd:complexType>
 								<xsd:simpleContent>
-									<xsd:extension base="xsd:normalizedString">
-										<xsd:attribute name="force_create_if_not_found"
-											type="xsd:boolean" use="required"/>
-									</xsd:extension>
+									<xsd:extension base="xsd:normalizedString"> </xsd:extension>
 								</xsd:simpleContent>
 							</xsd:complexType>
 						</xsd:element>
-						<xsd:element name="xml" type="xsd:normalizedString"/>
+						<xsd:choice>
+							<xsd:element name="xml" type="xsd:normalizedString"/>
+							<xsd:element name="element" type="xsd:normalizedString"/>
+							<xsd:element name="attribute" type="xsd:normalizedString"/>
+						</xsd:choice>
 					</xsd:sequence>
 				</xsd:complexType>
 			</xsd:element>
+			<xsd:element name="require_value" type="xsd:boolean"/>
 		</xsd:sequence>
 	</xsd:complexType>
 </xsd:schema>