53 lines
1.9 KiB
Python
53 lines
1.9 KiB
Python
from django.apps import apps
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from django.db import models
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def sql_flush(style, connection, only_django=False, reset_sequences=True, allow_cascade=False):
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"""
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Return a list of the SQL statements used to flush the database.
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If only_django is True, only include the table names that have associated
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Django models and are in INSTALLED_APPS .
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"""
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if only_django:
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tables = connection.introspection.django_table_names(only_existing=True, include_views=False)
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else:
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tables = connection.introspection.table_names(include_views=False)
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seqs = connection.introspection.sequence_list() if reset_sequences else ()
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statements = connection.ops.sql_flush(style, tables, seqs, allow_cascade)
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return statements
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def emit_pre_migrate_signal(verbosity, interactive, db, **kwargs):
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# Emit the pre_migrate signal for every application.
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for app_config in apps.get_app_configs():
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if app_config.models_module is None:
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continue
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if verbosity >= 2:
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print("Running pre-migrate handlers for application %s" % app_config.label)
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models.signals.pre_migrate.send(
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sender=app_config,
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app_config=app_config,
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verbosity=verbosity,
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interactive=interactive,
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using=db,
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**kwargs
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)
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def emit_post_migrate_signal(verbosity, interactive, db, **kwargs):
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# Emit the post_migrate signal for every application.
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for app_config in apps.get_app_configs():
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if app_config.models_module is None:
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continue
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if verbosity >= 2:
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print("Running post-migrate handlers for application %s" % app_config.label)
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models.signals.post_migrate.send(
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sender=app_config,
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app_config=app_config,
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verbosity=verbosity,
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interactive=interactive,
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using=db,
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**kwargs
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)
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