Fix patch mandatory value (integer -> keyword).
Fix wrong variable use.
Fix wrong variable name.
Fix missing parameter.
Fix wrong vocabulary.
Extend "deleted" fields to "absent" fields (include also when not created yet).
Add field IDs in the header of corresponding columns in the structure history.
Replace the field IDs by their corresponding (last) names in the record history.
Remove useless empty line.
Factor the way to get the type used in DB.
Set some Dossier fields mandatory.
Refine the way to check a structure is updated + ad the check of type & mandatory attributes.
Add a function for convenience.
Add the mandatory update in DB.
Add a function to create and load a new component providing only the key data.
Provide a first version of the record modification page.