Eagle Estates - Part 10

Now that we have explored the topics of Context and Domains, let's add the following changes to our app:

• Let's add a parent_id field on our properties, that will reference the same model, eagle.property. The logic here is that properties can be linked to parent properties; think of appartments linked to a building, or a house linked to a compound. In these examples, the Building/Compound is the parent, and the Appartment/House is the child.
• Also add a child_ids field to keep track of child properties on the parent properties
• Create a new window action linked to the Properties model, with the name Units.
  • This action should have a domain that allows us to only display properties that have a parent, i.e: Apartments/Houses
• Update the original properties action with the name Compounds
  • This action should have a domain that allows us to only display properties that do not have a parent, i.e: Compounds/Buildings
• Update the existing Properties menuitem to not link to any action, and add two new menu items that point to our Compounds and Units actions, and have Properties as a parent
• Using the context, update the Compounds and Units actions to set a default value for the Name field: "New Compound" or "New Unit" respectively