Add coverage fields to the Change Address wizard

Before start the provisioning process, when is a change of address, we can cancel the order if we have the needed information about the coverage in the new place.

For more information review the card: https://trello.com/c/7EvicZ1j

---

Design

Coverage fields

We have 4 new fields:

• adsl_coverage - Selector
• mm_fiber_coverage - Selector
• vdf_fiber_coverage - Selector

The values of these fields are defined in OTRS. We need these values in Tryton.

I propose to define these values in otrs_somconnexio and use them from this module and from the eticom module.

To save the values selected in the wizard we need new models or modify the EticomContract model.

I propose to create a new model with the coverage order information. This new model can be:

 classDiagram
      CoverageAvailability  "1" -- "1" EticomContract
      CoverageAvailability : String adsl
      CoverageAvailability : String vdf_fibre
      CoverageAvailability : String mm_fibre
      CoverageAvailability : int EticomContract

      EticomContract : int CoverageAvailability
      EticomContract : bool changeAddressSameOwner
      EticomContract : +adsl_coverage() String
      EticomContract : +mm_fiber_coverage() String
      EticomContract : +vdf_fiber_coverage() String

The change address process now is:

1. Start wizard and fill it.
2. The wizard creates and EticomContract with the address data.
3. An agent validates the EticomContract.
4. The EticomContract validation generates a ticket in OTRS to start the provision of the new place.

And after these changes:

1. Start the wizard and fill it.
2. The wizard creates an EticomContract and a related CoverageInfo model with the coverage information filled in the wizard.
3. An agent validates the EticomContract or cancel it if has low coverage.
4. If it's validated, the process uses the coverage data to send more info to the OTRS ticket and start the provisioning process. If it was canceled, the process ends.

Field DynamicField_canviUibcacioMateixTitular

We also create a new field in the EticomContract model. A boolean that checks if is only an address change or if it's an address and owner change. This field is false by default.

When we are creating a ticket from an EticomContract, if this field is true we fill the dynamic field and send it to OTRS. If the field is false we don't add this dynamic field to the request.

Coverage fields

These fields get the selector value from the otrs_somconnexio library. I propose to create models to manage the coverage values of OTRS.

Creating the next models:

• ADSLCoverage
• MMFibreCoverage
• VdfFibreCoverage

all these methods implement a method get_selector_values() as a class method to fill the fields in the wizard and the possible values of the new model CoverageInfo fields.

 classDiagram
      Coverage <-- ADSLCoverage
      Coverage <-- MMFibreCoverage
      Coverage <-- VdfFibreLCoverage
      ADSLCoverage : +get_selector_values() List
      MMFibreCoverage : +get_selector_values() List
      VdfFibreLCoverage : +get_selector_values() List