* add UUIDs to XID sections (4 bytes / 8 hex digits) so it's not
necessary to handle collisions & add a fallback generator
* use COPY for performances over executemany: executemany just
performs an implicit loop on all statements (in psycopg2)
* ~pure SQL was possible:
INSERT INTO ir_model_data (module, model, name, res_id)
SELECT
'__export__',
'{model}',
'{table}_' || A.id || '_' || uuid_generate_v4(),
A.id
FROM {table} A
LEFT JOIN ir_model_data B
ON A.id = B.res_id AND B.model = %s
WHERE B.res_id IS NULL;
but would have required installing pg extensions (problematic
especially in stable) and performances are about the same as
the COPY version
task 36343
Fixes#22493
Before this commit, if the first exported field of an M2M is `id` (the
xid) the entire M2M is folded into a single cell with comma-separated
xids and any following field is ignored. If `id` is any but the first
field, the export behaves normally (with the m2m exported as a "table"
inside the parent record).
This behaviour makes sense for import-compatible exports where the id
is the only thing which can be exported anyway, but it is troublesome
outside of that mode as the behaviour of m2m under export becomes
incoherent/unpredictable (ish) as it depends on the position of the
m2m's `id` in the exports list.
Change it so we only perform folding in import-compatible mode (which
is the default for backwards compatibility with e.g. API calling
export_data directly & the like).
opw-813361
Fixes#22600
When you import a record in Odoo, you can specify an id without
prefixing it by the name of the module. e.g. 'project_project_x'
The result of this is an empty string as module name.
(This value is valid for a required field...)
Plus, when you check metadata, you see 'false.project_project_x'.
Now, the default module name is '__import__' instead of an empty string.
We already have similar behavior with '__export__' triggered by
'export_data' method.
Remove weird special case: when the first field of the first line of a one2many
is empty, replace this first field by the comma-separated names of the lines,
and discard the other lines.
Remove weird special case: when the first field of the first line of a one2many
is empty, replace this first field by the comma-separated names of the lines,
and discard the other lines.
* remove references to basestring & unicode (use relevant pycompat
helpers)
* remove some str calls (either entirely or replaced by relevant
helper, either text or native)
* use better API to avoid unnecessary conversions
* remove some XML declarations in views
In Python 3:
* various builtins and dict methods were changed to return
view/iterable objects rather than lists
* and the separate Python 2 view/iterable builtins and methods were
removed altogether
This is problematic when using these items as list (which the happens
repeatedly in Odoo), but more viciously when iterating *multiple times*
over them (which also happens, which I've messed up multiple times while
writing this, and which is a pain to debug even when you've just created
the issue).
Convert all code using these to semantics-matching cross-version
helper functions to get the LCD behaviour between P2 and P3, and
forbid the builtins via lint.
issue #8530
Previously availability of meta-information (failing constraint,
impacted table and column, …) in pg errors (e.g. constraint check
failure) was limited and only available through formatted error
messages, which could be localised (by PG itself) so not did getting
that information require string extraction it was brittle in the face of
localised instances.
Postgres 9.3 adds this meta-information to error diagnostic data
(`PQresultErrorField`), allowing easy programmatic access to it.
Psycopg2 [added a Diagnostic
object](http://initd.org/psycopg/docs/extensions.html#psycopg2.extensions.Diagnostics)
around the time pg9.3 was itself released.
Assuming Odoo now requires pg >= 9.3 we can remove the old string
munging extraction for diagnostic.
* funny story, the handling of 23505 didn't actually work because
"duplicate key value violates unique constraint" is a literal part
of the error message, I'd misunderstood "value" as a field name
because my test model's field was called "value". Makes sense too
since you can set UNIQUE constraints on multiple fields (and UNIQUE
indices on expressions)
* for both errors, it should be possible to use the table_name or
constraint metadata to provide messages about sub-model issues (a
constraint on an m2o), but that's not currently handled
Fixes#15323
Christophe Simonis