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Code Issues 32 Releases Wiki Activity

boulder-oracle-sprint: Refactored all Oracle references outside django.db into the

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backend.


git-svn-id: http://code.djangoproject.com/svn/django/branches/boulder-oracle-sprint@4082 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Boulder Sprinters
2006-11-17 06:20:35 +00:00
parent e146dd75d9
commit 1b0d6b942c
8 changed files with 108 additions and 74 deletions
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62
django/core/management.py
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@@ -6,7 +6,6 @@ from django.core.exceptions import ImproperlyConfigured
import os, re, shutil, sys, textwrap
from optparse import OptionParser
from django.utils import termcolors
from django.conf import settings
# For Python 2.3
if not hasattr(__builtins__, 'set'):
@@ -56,7 +55,7 @@ def _is_valid_dir_name(s):
def _get_installed_models(table_list):
"Gets a set of all models that are installed, given a list of existing tables"
from django.db import models, backend
from django.db import backend, models
all_models = []
for app in models.get_apps():
for model in models.get_models(app):
@@ -89,7 +88,8 @@ def get_version():
def get_sql_create(app):
"Returns a list of the CREATE TABLE SQL statements for the given app."
from django.db import models, get_creation_module, backend
from django.db import get_creation_module, models
data_types = get_creation_module().DATA_TYPES
if not data_types:
@@ -145,7 +145,6 @@ def _get_sql_model_create(model, known_models=set()):
Returns list_of_sql, pending_references_dict
"""
from django.db import backend, get_creation_module, models
from django.db.backends.util import truncate_name
data_types = get_creation_module().DATA_TYPES
opts = model._meta
@@ -165,13 +164,10 @@ def _get_sql_model_create(model, known_models=set()):
field_output = [style.SQL_FIELD(backend.quote_name(f.column)),
style.SQL_COLTYPE(col_type % rel_field.__dict__)]
field_output.append(style.SQL_KEYWORD('%sNULL' % (not f.null and 'NOT ' or '')))
if f.unique:
if f.unique and (not f.primary_key or backend.allows_unique_and_pk):
field_output.append(style.SQL_KEYWORD('UNIQUE'))
if f.primary_key:
field_output.append(style.SQL_KEYWORD('PRIMARY KEY'))
if settings.DATABASE_ENGINE == 'oracle' and f.unique and f.primary_key:
# Suppress UNIQUE/PRIMARY KEY for Oracle (ORA-02259)
field_output.remove(style.SQL_KEYWORD('UNIQUE'))
if f.rel:
if f.rel.to in known_models:
field_output.append(style.SQL_KEYWORD('REFERENCES') + ' ' + \
@@ -197,21 +193,12 @@ def _get_sql_model_create(model, known_models=set()):
full_statement.append(');')
final_output.append('\n'.join(full_statement))
# To simulate auto-incrementing primary keys in Oracle -- creating primary tables
if settings.DATABASE_ENGINE == 'oracle' and opts.has_auto_field:
name_length = backend.get_max_name_length() - 3
sequence_name = '%s_sq' % truncate_name(opts.db_table, name_length)
sequence_statement = 'CREATE SEQUENCE %s;' % sequence_name
final_output.append(sequence_statement)
trigger_statement = '' + \
'CREATE OR REPLACE TRIGGER %s\n' % ('%s_tr' % truncate_name(opts.db_table, name_length)) + \
' BEFORE INSERT ON %s\n' % backend.quote_name(opts.db_table) + \
' FOR EACH ROW\n' + \
' WHEN (new.id IS NULL)\n' + \
' BEGIN\n' + \
' SELECT %s.nextval INTO :new.id FROM dual;\n' % sequence_name + \
' END;\n'
final_output.append(trigger_statement)
if opts.has_auto_field:
# Add any extra SQL needed to support auto-incrementing primary keys
autoinc_sql = backend.get_autoinc_sql(opts.db_table)
if autoinc_sql:
for stmt in autoinc_sql:
final_output.append(stmt)
return final_output, pending_references
@@ -243,7 +230,6 @@ def _get_sql_for_pending_references(model, pending_references):
def _get_many_to_many_sql_for_model(model):
from django.db import backend, get_creation_module
from django.db.models import GenericRel
from django.db.backends.util import truncate_name
data_types = get_creation_module().DATA_TYPES
@@ -276,22 +262,12 @@ def _get_many_to_many_sql_for_model(model):
table_output.append(');')
final_output.append('\n'.join(table_output))
# To simulate auto-incrementing primary keys in Oracle -- creating m2m tables
if settings.DATABASE_ENGINE == 'oracle':
name_length = backend.get_max_name_length() - 3
m_table = f.m2m_db_table()
sequence_name = '%s_sq' % truncate_name(m_table, name_length)
sequence_statement = 'CREATE SEQUENCE %s;' % sequence_name
final_output.append(sequence_statement)
trigger_statement = '' + \
'CREATE OR REPLACE TRIGGER %s\n' % ('%s_tr' % truncate_name(m_table, name_length)) + \
' BEFORE INSERT ON %s\n' % backend.quote_name(m_table) + \
' FOR EACH ROW\n' + \
' WHEN (new.id IS NULL)\n' + \
' BEGIN\n' + \
' SELECT %s.nextval INTO :new.id FROM dual;\n' % sequence_name + \
' END;\n'
final_output.append(trigger_statement)
# Add any extra SQL needed to support auto-incrementing PKs
autoinc_sql = backend.get_autoinc_sql(f.m2m_db_table())
if autoinc_sql:
for stmt in autoinc_sql:
final_output.append(stmt)
return final_output
def get_sql_delete(app):
@@ -1450,8 +1426,7 @@ def execute_from_command_line(action_mapping=DEFAULT_ACTION_MAPPING, argv=None):
if not mod_list:
parser.print_usage_and_exit()
if action not in NO_SQL_TRANSACTION:
if settings.DATABASE_ENGINE != 'oracle':
print style.SQL_KEYWORD("BEGIN;")
print style.SQL_KEYWORD("BEGIN;")
for mod in mod_list:
if action == 'reset':
output = action_mapping[action](mod, options.interactive)
@@ -1460,8 +1435,7 @@ def execute_from_command_line(action_mapping=DEFAULT_ACTION_MAPPING, argv=None):
if output:
print '\n'.join(output)
if action not in NO_SQL_TRANSACTION:
if settings.DATABASE_ENGINE != 'oracle':
print style.SQL_KEYWORD("COMMIT;")
print style.SQL_KEYWORD("COMMIT;")
def setup_environ(settings_mod):
"""