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Code Issues 32 Releases Wiki Activity

inspectdb is halfway there...

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git-svn-id: http://code.djangoproject.com/svn/django/branches/boulder-oracle-sprint@4004 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Boulder Sprinters 2006-11-04 23:44:18 +00:00
parent 1898c6baa7
commit 955424507b
1 changed files with 38 additions and 3 deletions
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39
django/db/backends/oracle/introspection.py
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@ -1,3 +1,4 @@
from django.db.backends.oracle.base import quote_name
import re import re
foreign_key_re = re.compile(r"\sCONSTRAINT `[^`]*` FOREIGN KEY \(`([^`]*)`\) REFERENCES `([^`]*)` \(`([^`]*)`\)") foreign_key_re = re.compile(r"\sCONSTRAINT `[^`]*` FOREIGN KEY \(`([^`]*)`\) REFERENCES `([^`]*)` \(`([^`]*)`\)")
@ -8,7 +9,9 @@ def get_table_list(cursor):
return [row[0].upper() for row in cursor] return [row[0].upper() for row in cursor]
def get_table_description(cursor, table_name): def get_table_description(cursor, table_name):
return table_name "Returns a description of the table, with the DB-API cursor.description interface."
cursor.execute("SELECT * FROM %s WHERE ROWNUM < 2" % quote_name(table_name))
return cursor.description
def _name_to_index(cursor, table_name): def _name_to_index(cursor, table_name):
""" """
@ -31,7 +34,39 @@ def get_indexes(cursor, table_name):
{'primary_key': boolean representing whether it's the primary key, {'primary_key': boolean representing whether it's the primary key,
'unique': boolean representing whether it's a unique index} 'unique': boolean representing whether it's a unique index}
""" """
raise NotImplementedError # This query retrieves each index on the given table, including the
# first associated field name
# "We were in the nick of time; you were in great peril!"
sql = """
WITH primarycols AS (
SELECT user_cons_columns.table_name, user_cons_columns.column_name, 1 AS PRIMARYCOL
FROM user_cons_columns, user_constraints
WHERE user_cons_columns.constraint_name = user_constraints.constraint_name AND
user_constraints.constraint_type = 'P' AND
user_cons_columns.table_name = %s),
uniquecols AS (
SELECT user_ind_columns.table_name, user_ind_columns.column_name, 1 AS UNIQUECOL
FROM user_indexes, user_ind_columns
WHERE uniqueness = 'UNIQUE' AND
user_indexes.index_name = user_ind_columns.index_name AND
user_ind_columns.table_name = %s)
SELECT allcols.column_name, primarycols.primarycol, uniquecols.UNIQUECOL
FROM (SELECT column_name FROM primarycols UNION SELECT column_name FROM
uniquecols) allcols,
primarycols, uniquecols
WHERE allcols.column_name = primarycols.column_name (+) AND
allcols.column_name = uniquecols.column_name (+)
"""
cursor.execute(sql, [table_name, table_name])
indexes = {}
for row in cursor.fetchall():
# row[1] (idx.indkey) is stored in the DB as an array. It comes out as
# a string of space-separated integers. This designates the field
# indexes (1-based) of the fields that have indexes on the table.
# Here, we skip any indexes across multiple fields.
indexes[row[0]] = {'primary_key': row[1], 'unique': row[2]}
return indexes
# Maps type codes to Django Field types. # Maps type codes to Django Field types.
DATA_TYPES_REVERSE = { DATA_TYPES_REVERSE = {