Allow to define "field transfer sets" in merge-tool / importer / exporter

[westram]

Feature should provide similar functionality as

ARB_MERGE/Transfer species/Source->Target/Define field transfer for gene-species

(only available in genome-DBs!)

Wanted procedure:

• define "field transfer set" (FTS)
• in merge-tool FTS can be used to
  • Transfer selected species
  • Transfer listed species
  • Transfer field of listed species (makes no sense)
• in importer FTS can be used as post-import-transformation
• in exporter FTS can be used as pre-export-transformation

Data stored for each FTS:

• name + comment
• list of transfer rules (TR)
• whether to copy undefined fields
  (i.e. fields that are neither defined as target- nor as source-field in any TR)
  • list of fields to exclude from copying (not needed)

Data stored for each TR:

• source field(s), if multiple:
  • need defined order
  • need separator (default: "; ")
• ACI to modify content (optional)
• target field

GUI:

• currently selected FTS (as button?) in
  • merge species window (merge-tool)
  • import window
  • export window

press that button ⇒ open FTS selection window

• FTS selection window:
  • list of defined FTS
  • simple admin interface (delete, copy, create)
  • edit button (opens FTS definition window)
• FTS definition window:
  • comment field
  • list of existing TR
  • GUI elements for TR (source field, ACI, target field)
    • either showing selected TR or defining new TR
  • toggle (copy undefined fields?)
    • comma-separated list of fields to never copy
  • simple admin interface (delete selected TR)

Usability:

It would be nice if fields could be selected from lists (additionally to specifying them via input field). For that purpose the module shall be provided with callbacks to extract possible (or known) source- and target-fields.

when used in	source-fields	target-fields
merge tool	fields existing in source	fields existing in target
importer	fields existing after import (as test import does)	fields existing in
exporter	fields existing in	fields accessed by export-filter (implemented via FieldTracker plugged into ACI engine )

[westram]

multiple source-fields should be possible ⇒ need order and separator

[westram]

by [18088] + [18092].