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django-database-view
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Enable returning a qs (to allow query parameters)

master
Pietro Brenna 2022-03-17 11:14:51 +01:00
parent 42ceb2cac2
commit 88009b9e99
1 changed files with 17 additions and 10 deletions
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27
dbview/helpers.py
View File

@ -2,6 +2,7 @@ import logging
from django.db import migrations
from django.apps import apps
from django.db.models import QuerySet
class CreateView(migrations.CreateModel):
@ -56,14 +57,20 @@ class CreateView(migrations.CreateModel):
schema_editor.execute(sql, None)
def _create_standard_view(self, model, schema_editor):
sql_template = 'CREATE VIEW %(table)s AS %(definition)s'
qs = str(model.view())
args = {
'table': schema_editor.quote_name(model._meta.db_table),
'definition': qs,
}
sql = sql_template % args
self._create_view_from_raw_sql(sql, schema_editor)
sql_template = 'CREATE VIEW %(table)s AS ' % {'table': schema_editor.quote_name(model._meta.db_table)}
params = []
qs = model.view()
if isinstance(qs, QuerySet):
db = qs.db
compiler = qs.query.get_compiler(using=db)
sql, qs_params = qs.query.as_sql(compiler, schema_editor.connection)
sql_template += sql
params += qs_params
elif isinstance(qs, str):
sql_template += qs
else:
raise Exception('view() should return a string or a QuerySet')
self._create_view_from_raw_sql(sql_template, schema_editor, params=params)
def _create_view_from_raw_sql(self, sql, schema_editor):
schema_editor.execute(sql, None)
def _create_view_from_raw_sql(self, sql, schema_editor, params=None):
schema_editor.execute(sql, params)