Leap2a interactive import creating duplicate composite resume artefacts

[Aaron Wells]

The resume artefact type includes the idea of "composite artefacts", which are a little strange. Basically, it's one artefact (such as "education history"), which can contain multiple lines. So you wind up with one entry in the "artefact" table, and multiple lines in the "artefact_resume_educationhistory" table.

The interactive import code was not built with this in mind. Instead, it just changed the "is_singular()" method for ArtefactTypeResumeComposite from "true" to "false" and inserted multiple records into the "artefact" table for each composite artefact line. This breaks some existing code, causing for instance Bug 1237117.

[Aaron Wells (u-aaronw)]

https://reviews.mahara.org/2600