topic Non-mandatory properties not instantiated in content objects in a custom model in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/non-mandatory-properties-not-instantiated-in-content-objects-in/m-p/305983#M259113 <HTML><HEAD></HEAD><BODY><SPAN>Hello all,</SPAN><BR /><BR /><SPAN>I discovered an Alfresco feature related to custom data modeling. I'm not sure if this is an intended feature. I am using Alfresco Community 4.2.e and Alfresco Enterprise 4.2.0.</SPAN><BR /><BR /><SPAN>1. Create a custom data model "my:model" including a new data type "my:datatype" that extends "cm:content" by adding a new property of type text "my<img id="smileytongue" class="emoticon emoticon-smileytongue" src="https://connect.hyland.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" />roperty". Package the new model in an AMP.</SPAN><BR /><BR /><SPAN>2. Create code that extends the Alfresco Share user interface to allow users to create and edit content objects of type "my:datatype". Package the interface extensions in an AMP.</SPAN><BR /><BR /><SPAN>3. Apply the AMPs to alfresco.war and share.war and restart Alfresco.</SPAN><BR /><BR /><SPAN>4. Create a new content object of type "my:datatype" using the Share user interface. Do not assign a value to the property "my<img id="smileytongue" class="emoticon emoticon-smileytongue" src="https://connect.hyland.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" />roperty".</SPAN><BR /><BR /><SPAN>5. Examine the new content object using the node browser. The property "my<img id="smileytongue" class="emoticon emoticon-smileytongue" src="https://connect.hyland.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" />roperty" appears and has no value.</SPAN><BR /><BR /><SPAN>6. Create a web script that creates a new content object of type "my:datatype" as follows</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE><BR />var node = userhome.createNode("My sample document", "my:document");<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><BR /><SPAN>7. Execute the web script and examine the new content object using the node browser. The property "my<img id="smileytongue" class="emoticon emoticon-smileytongue" src="https://connect.hyland.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" />roperty" &lt;strong&gt;does not appear&lt;/strong&gt;.</SPAN><BR /><BR /><SPAN>If you write scripts that reference an object of type "my:document" and property "my<img id="smileytongue" class="emoticon emoticon-smileytongue" src="https://connect.hyland.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" />roperty", the script will blow up with a 500 error because the expected property is not present. In my case, a web script fails with error 500 and "freemarker.core.InvalidReferenceException" because the expected property is not part of the object being investigated.</SPAN><BR /><BR /><SPAN>One way to prevent this from happening is to make the property mandatory in the data model. This is undesirable in many cases.</SPAN><BR /><BR /><SPAN>The solution I found to make sure the property is created with the object is to specify a blank default value in the data model and not make the property mandatory:</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE><BR />&lt;property name="my:property"&gt;<BR /> &lt;type&gt;d:text&lt;/type&gt;<BR /> &lt;default&gt;&lt;/default&gt;<BR />&lt;/property&gt;<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><BR /><SPAN>When defined like this, scripts referencing this property will always find it and not throw an exception.</SPAN><BR /><BR /><SPAN>Is this "missing property" feature expected in Alfresco? If so, is this something that might be referenced in the documentation?</SPAN><BR /><BR /><SPAN>Thanks,</SPAN><BR /><BR /><SPAN>Lw</SPAN><BR /><BR /></BODY></HTML> Thu, 14 Nov 2013 17:27:30 GMT lw7415 2013-11-14T17:27:30Z Non-mandatory properties not instantiated in content objects in a custom model https://connect.hyland.com/t5/alfresco-archive/non-mandatory-properties-not-instantiated-in-content-objects-in/m-p/305983#M259113 Hello all,I discovered an Alfresco feature related to custom data modeling. I'm not sure if this is an intended feature. I am using Alfresco Community 4.2.e and Alfresco Enterprise 4.2.0.1. Create a custom data model "my:model" including a new data type "my:datatype" that extends "cm:content" by add Thu, 14 Nov 2013 17:27:30 GMT https://connect.hyland.com/t5/alfresco-archive/non-mandatory-properties-not-instantiated-in-content-objects-in/m-p/305983#M259113 lw7415 2013-11-14T17:27:30Z Re: Non-mandatory properties not instantiated in content objects in a custom model https://connect.hyland.com/t5/alfresco-archive/non-mandatory-properties-not-instantiated-in-content-objects-in/m-p/305984#M259114 <HTML><HEAD></HEAD><BODY><SPAN>Non-mandatory property would be initialized on content objects only when that property is set on content object explicitly.</SPAN><BR /><SPAN>Try to set blank value on property while creating/editing node.</SPAN><BR /></BODY></HTML> Mon, 25 Nov 2013 06:21:56 GMT https://connect.hyland.com/t5/alfresco-archive/non-mandatory-properties-not-instantiated-in-content-objects-in/m-p/305984#M259114 yogeshpj 2013-11-25T06:21:56Z