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Code Issues 32 Releases Wiki Activity

[4.2.x] Improved examples in docs about raw SQL queries.

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Regression in 14459f80ee.
Backport of 498195bda4 from main
This commit is contained in:
Mariusz Felisiak
2023-04-20 12:24:33 +02:00
parent 9967faab0b
commit d1eb9b2994
1 changed files with 10 additions and 7 deletions
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17
docs/topics/db/sql.txt
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@@ -121,11 +121,13 @@ had ``Person`` data in it, you could easily map it into ``Person`` instances:
.. code-block:: pycon .. code-block:: pycon
>>> Person.objects.raw( >>> Person.objects.raw(
... """SELECT first AS first_name, ... """
... last AS last_name, ... SELECT first AS first_name,
... bd AS birth_date, ... last AS last_name,
... pk AS id, ... bd AS birth_date,
... FROM some_other_table""" ... pk AS id,
... FROM some_other_table
... """
... ) ... )
As long as the names match, the model instances will be created correctly. As long as the names match, the model instances will be created correctly.
@@ -175,8 +177,9 @@ fields that are omitted from the query will be loaded on demand. For example:
>>> for p in Person.objects.raw("SELECT id, first_name FROM myapp_person"): >>> for p in Person.objects.raw("SELECT id, first_name FROM myapp_person"):
... print( ... print(
... p.first_name, p.last_name # This will be retrieved by the original query ... p.first_name, # This will be retrieved by the original query
... ) # This will be retrieved on demand ... p.last_name, # This will be retrieved on demand
... )
... ...
John Smith John Smith
Jane Jones Jane Jones