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Code Issues 32 Releases Wiki Activity

[boulder-oracle-sprint] Added truncate_name to ADD CONSTRAINT code

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git-svn-id: http://code.djangoproject.com/svn/django/branches/boulder-oracle-sprint@3976 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Boulder Sprinters
2006-11-04 20:43:43 +00:00
parent a642b4ada2
commit b543ef9bf1
1 changed files with 22 additions and 27 deletions
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49
django/core/management.py
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@@ -6,7 +6,7 @@ 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
from django.conf import settings
# For Python 2.3
if not hasattr(__builtins__, 'set'):
@@ -164,8 +164,8 @@ def _get_sql_model_create(model, known_models=set()):
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)
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:
@@ -191,11 +191,11 @@ def _get_sql_model_create(model, known_models=set()):
full_statement.append(' %s%s' % (line, i < len(table_output)-1 and ',' or ''))
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') & (opts.has_auto_field):
sequence_statement = 'CREATE SEQUENCE %s_sq;' % opts.db_table
final_output.append(sequence_statement)
# To simulate auto-incrementing primary keys in Oracle -- creating primary tables
if (settings.DATABASE_ENGINE == 'oracle') & (opts.has_auto_field):
sequence_statement = 'CREATE SEQUENCE %s_sq;' % opts.db_table
final_output.append(sequence_statement)
trigger_statement = '' + \
'CREATE OR REPLACE trigger %s_tr\n' % opts.db_table + \
' before insert on %s\n' % backend.quote_name(opts.db_table) + \
@@ -203,8 +203,8 @@ def _get_sql_model_create(model, known_models=set()):
' when (new.id is NULL)\n' + \
' begin\n' + \
' select %s_sq.NEXTVAL into :new.id from DUAL;\n' % opts.db_table + \
' end;\n'
final_output.append(trigger_statement)
' end;\n'
final_output.append(trigger_statement)
return final_output, pending_references
@@ -214,6 +214,7 @@ def _get_sql_for_pending_references(model, pending_references):
Get any ALTER TABLE statements to add constraints after the fact.
"""
from django.db import backend, get_creation_module
from django.db.backend.util import truncate_name
data_types = get_creation_module().DATA_TYPES
final_output = []
@@ -229,15 +230,9 @@ def _get_sql_for_pending_references(model, pending_references):
# For MySQL, r_name must be unique in the first 64 characters.
# So we are careful with character usage here.
r_name = '%s_refs_%s_%x' % (r_col, col, abs(hash((r_table, table))))
# if constraint name size is over 29 char and db is oracle, chop it
if settings.DATABASE_ENGINE == 'oracle' and len(r_name) > 29:
final_output.append(style.SQL_KEYWORD('ALTER TABLE') + ' %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s);' % \
(backend.quote_name(r_table), r_name[0:29],
backend.quote_name(r_col), backend.quote_name(table), backend.quote_name(col)))
else:
final_output.append(style.SQL_KEYWORD('ALTER TABLE') + ' %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s);' % \
(backend.quote_name(r_table), r_name,
backend.quote_name(r_col), backend.quote_name(table), backend.quote_name(col)))
final_output.append(style.SQL_KEYWORD('ALTER TABLE') + ' %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s);' % \
(backend.quote_name(r_table), truncate_name(r_name, backend.get_max_name_length()),
backend.quote_name(r_col), backend.quote_name(table), backend.quote_name(col)))
del pending_references[model]
return final_output
@@ -275,11 +270,11 @@ def _get_many_to_many_sql_for_model(model):
style.SQL_FIELD(backend.quote_name(f.m2m_reverse_name()))))
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'):
m_table = f.m2m_db_table()
sequence_statement = 'CREATE SEQUENCE %s_sq;' % m_table
final_output.append(sequence_statement)
# To simulate auto-incrementing primary keys in Oracle -- creating m2m tables
if (settings.DATABASE_ENGINE == 'oracle'):
m_table = f.m2m_db_table()
sequence_statement = 'CREATE SEQUENCE %s_sq;' % m_table
final_output.append(sequence_statement)
trigger_statement = '' + \
'CREATE OR REPLACE trigger %s_tr\n' % m_table + \
' before insert on %s\n' % backend.quote_name(m_table) + \
@@ -287,8 +282,8 @@ def _get_many_to_many_sql_for_model(model):
' when (new.id is NULL)\n' + \
' begin\n' + \
' select %s_sq.NEXTVAL into :new.id from DUAL;\n' % m_table + \
' end;\n'
final_output.append(trigger_statement)
' end;\n'
final_output.append(trigger_statement)
return final_output
def get_sql_delete(app):
@@ -520,7 +515,7 @@ def syncdb(verbosity=1, interactive=True):
if verbosity >= 1:
print "Creating table %s" % model._meta.db_table
for statement in sql:
cursor.execute(statement)
cursor.execute(statement)
table_list.append(model._meta.db_table)
for model in model_list: