20110822

a) BabelNamed

New mixin lino.utils.babel.BabelNamed. Used by lino.modlib.contacts.models.ContactType lino.modlib.contacts.models.CompanyType lino.modlib.countries.models.Language lino.modlib.countries.models.Country lino.modlib.notes.models.EventType lino.modlib.products.models.Category lino.modlib.products.models.Product lino.modlib.trading.models.PaymentTerm lino.modlib.trading.models.InvoicingMode lino.modlib.trading.models.ShippingMode lino.modlib.properties.models.PropType lino.modlib.properties.models.PropGroup lino.modlib.properties.models.Property lino_xl.lib.cal.AttendanceRole lino.modlib.contracts.models.ContractType lino.modlib.contracts.models.ExamPolicy lino.apps.dsbe.models.StudyType lino.apps.dsbe.models.AidType

This removes a lot of code redundance without modifying the database structure.

Checkin 20110822a

b) Changes in lino.modlib.contacts

I opened docs/tickets/48.

A few changes in the database structure, but a big step in Lino’s evolution: Persons & Companies get a common non-abstract model Contact. This change is triggered by our need for a user-friendly way to add recipients to an OutMail. A Contact will be “a Company, a Person, a User or a Group of Contacts”.

• The current model ContactType gets renamed to Role.

• The current model Contact gets renamed to RoleOccurence.

• The current model Addressable gets renamed to Contact and becomes concrete.

This is the first time that we have more than one level of multi-table inheritance:

Contact –> Company –> CourseProvider

This caused to some design decisions about loading .dtl files and the default app_label of a Report:

• the app_label of a Report is always taken from the model. Subclasses cannot set it manually.

• .dtl files now override each other by their name. For example if Lino finds a file 1.dtl for each of Contact, Company and CourseProvider, then CourseProvider uses only its own version of that detail.

Checkin 20110822b