This adds the possibility to manage data on a normalized relational
database in N:M relations. On the relation editor in a form, the tools
to add, delete, link and unlink work (also) on the linking table if a
relation is visualized as N:M relation.
Configuration is done through the fields tab where on the relation a
second relation can be chosen (if there is a suitable relation in terms
of a second relation on the linking table).
Limitations
===========
QGIS is not a database management system.
It is based on assumptions about the underlying database system. In
particular it expects
* A `ON DELETE CASCADE` or similar measure on the second relation
* Does not take care of setting the primary key when adding features.
Either users need to be instructed to set them manually or - if it's a
database derived value - the layers need to be in transaction mode
(currently only activatable through the API)
...and update all bundled SVGs to suit
Non-bundled SVGs must add:
fill-opacity="param(fill-opacity)"
and
stroke-opacity="param(outline-opacity)"
to enable transparency support
This check tests that if a function has been declared deprecated
with either Q_DECL_DEPRECATED or has a @deprecated Doxygen note
then it MUST have both the Q_DECL_DEPRECATD and @deprecated note.
It's important that both are used, as Q_DECL_DEPRECATED allows
throwing a warning if that method is used in code, while the
@deprecated doxygen note gives an indication to devs/PyQGIS users
of why it's deprecated and what should be used instead.
Ideally we'd also test for SIP /Deprecated/ tags, but I can't
find any reliable way to do this.
Allows toggling on/off all the symbol items for categorized/graduated/
rule based layers via the right click menu on an item. Previously
you'd have to manually toggle each item one-by-one.
Fix#13458
When loading a function init with a dot, this
is transformed to a proper import and the
python init configuration is changed to support
the new python loading system.
Also check for inspect errors.
Still missing: warn the user on configuration and
trapped runtime errors
Do not rely on the presence of a dot to load
a module. Loading a module can now be achieved
through the code editor in the dialog.
* added an option to load from environment
* added a file selector to specify the file
* changed tooltips accordingly
Limits the maximum number of features returned by the iterator.
Some providers (postgres, spatialite, MS SQL) pass the limit on
to the provider to result in faster queries.
