--- a/misc/migration/3.21.0_Any.py Mon Jan 04 18:40:30 2016 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,174 +0,0 @@
-from __future__ import print_function
-
-from cubicweb.schema import PURE_VIRTUAL_RTYPES
-from cubicweb.server.schema2sql import rschema_has_table
-
-
-def add_foreign_keys():
- source = repo.system_source
- if not source.dbhelper.alter_column_support:
- return
- for rschema in schema.relations():
- if rschema.inlined:
- add_foreign_keys_inlined(rschema)
- elif rschema_has_table(rschema, skip_relations=PURE_VIRTUAL_RTYPES):
- add_foreign_keys_relation(rschema)
- for eschema in schema.entities():
- if eschema.final:
- continue
- add_foreign_key_etype(eschema)
-
-
-def add_foreign_keys_relation(rschema):
- args = {'r': rschema.type}
- count = sql('SELECT COUNT(*) FROM ('
- ' SELECT eid_from FROM %(r)s_relation'
- ' UNION'
- ' SELECT eid_to FROM %(r)s_relation'
- ' EXCEPT'
- ' SELECT eid FROM entities) AS eids' % args,
- ask_confirm=False)[0][0]
- if count:
- print('%s references %d unknown entities, deleting' % (rschema, count))
- sql('DELETE FROM %(r)s_relation '
- 'WHERE eid_from IN (SELECT eid_from FROM %(r)s_relation EXCEPT SELECT eid FROM entities)' % args)
- sql('DELETE FROM %(r)s_relation '
- 'WHERE eid_to IN (SELECT eid_to FROM %(r)s_relation EXCEPT SELECT eid FROM entities)' % args)
-
- args['from_fk'] = '%(r)s_relation_eid_from_fkey' % args
- args['to_fk'] = '%(r)s_relation_eid_to_fkey' % args
- args['table'] = '%(r)s_relation' % args
- if repo.system_source.dbdriver == 'postgres':
- sql('ALTER TABLE %(table)s DROP CONSTRAINT IF EXISTS %(from_fk)s' % args,
- ask_confirm=False)
- sql('ALTER TABLE %(table)s DROP CONSTRAINT IF EXISTS %(to_fk)s' % args,
- ask_confirm=False)
- elif repo.system_source.dbdriver.startswith('sqlserver'):
- sql("IF OBJECT_ID('%(from_fk)s', 'F') IS NOT NULL "
- "ALTER TABLE %(table)s DROP CONSTRAINT %(from_fk)s" % args,
- ask_confirm=False)
- sql("IF OBJECT_ID('%(to_fk)s', 'F') IS NOT NULL "
- "ALTER TABLE %(table)s DROP CONSTRAINT %(to_fk)s" % args,
- ask_confirm=False)
- sql('ALTER TABLE %(table)s ADD CONSTRAINT %(from_fk)s '
- 'FOREIGN KEY (eid_from) REFERENCES entities (eid)' % args,
- ask_confirm=False)
- sql('ALTER TABLE %(table)s ADD CONSTRAINT %(to_fk)s '
- 'FOREIGN KEY (eid_to) REFERENCES entities (eid)' % args,
- ask_confirm=False)
-
-
-def add_foreign_keys_inlined(rschema):
- for eschema in rschema.subjects():
- args = {'e': eschema.type, 'r': rschema.type}
- args['c'] = 'cw_%(e)s_cw_%(r)s_fkey' % args
-
- if eschema.rdef(rschema).cardinality[0] == '1':
- broken_eids = sql('SELECT cw_eid FROM cw_%(e)s WHERE cw_%(r)s IS NULL' % args,
- ask_confirm=False)
- if broken_eids:
- print('Required relation %(e)s.%(r)s missing' % args)
- args['eids'] = ', '.join(str(eid) for eid, in broken_eids)
- rql('DELETE %(e)s X WHERE X eid IN (%(eids)s)' % args)
- broken_eids = sql('SELECT cw_eid FROM cw_%(e)s WHERE cw_%(r)s IN (SELECT cw_%(r)s FROM cw_%(e)s '
- 'EXCEPT SELECT eid FROM entities)' % args,
- ask_confirm=False)
- if broken_eids:
- print('Required relation %(e)s.%(r)s references unknown objects, deleting subject entities' % args)
- args['eids'] = ', '.join(str(eid) for eid, in broken_eids)
- rql('DELETE %(e)s X WHERE X eid IN (%(eids)s)' % args)
- else:
- if sql('SELECT COUNT(*) FROM ('
- ' SELECT cw_%(r)s FROM cw_%(e)s WHERE cw_%(r)s IS NOT NULL'
- ' EXCEPT'
- ' SELECT eid FROM entities) AS eids' % args,
- ask_confirm=False)[0][0]:
- print('%(e)s.%(r)s references unknown entities, deleting relation' % args)
- sql('UPDATE cw_%(e)s SET cw_%(r)s = NULL WHERE cw_%(r)s IS NOT NULL AND cw_%(r)s IN '
- '(SELECT cw_%(r)s FROM cw_%(e)s EXCEPT SELECT eid FROM entities)' % args)
-
- if repo.system_source.dbdriver == 'postgres':
- sql('ALTER TABLE cw_%(e)s DROP CONSTRAINT IF EXISTS %(c)s' % args,
- ask_confirm=False)
- elif repo.system_source.dbdriver.startswith('sqlserver'):
- sql("IF OBJECT_ID('%(c)s', 'F') IS NOT NULL "
- "ALTER TABLE cw_%(e)s DROP CONSTRAINT %(c)s" % args,
- ask_confirm=False)
- sql('ALTER TABLE cw_%(e)s ADD CONSTRAINT %(c)s '
- 'FOREIGN KEY (cw_%(r)s) references entities(eid)' % args,
- ask_confirm=False)
-
-
-def add_foreign_key_etype(eschema):
- args = {'e': eschema.type}
- if sql('SELECT COUNT(*) FROM ('
- ' SELECT cw_eid FROM cw_%(e)s'
- ' EXCEPT'
- ' SELECT eid FROM entities) AS eids' % args,
- ask_confirm=False)[0][0]:
- print('%(e)s has nonexistent entities, deleting' % args)
- sql('DELETE FROM cw_%(e)s WHERE cw_eid IN '
- '(SELECT cw_eid FROM cw_%(e)s EXCEPT SELECT eid FROM entities)' % args)
- args['c'] = 'cw_%(e)s_cw_eid_fkey' % args
- if repo.system_source.dbdriver == 'postgres':
- sql('ALTER TABLE cw_%(e)s DROP CONSTRAINT IF EXISTS %(c)s' % args,
- ask_confirm=False)
- elif repo.system_source.dbdriver.startswith('sqlserver'):
- sql("IF OBJECT_ID('%(c)s', 'F') IS NOT NULL "
- "ALTER TABLE cw_%(e)s DROP CONSTRAINT %(c)s" % args,
- ask_confirm=False)
- sql('ALTER TABLE cw_%(e)s ADD CONSTRAINT %(c)s '
- 'FOREIGN KEY (cw_eid) REFERENCES entities (eid)' % args,
- ask_confirm=False)
-
-
-add_foreign_keys()
-
-cu = session.cnxset.cu
-helper = repo.system_source.dbhelper
-
-helper.drop_index(cu, 'entities', 'extid', False)
-# don't use create_index because it doesn't work for columns that may be NULL
-# on sqlserver
-for query in helper.sqls_create_multicol_unique_index('entities', ['extid']):
- cu.execute(query)
-
-if 'moved_entities' not in helper.list_tables(cu):
- sql('''
- CREATE TABLE moved_entities (
- eid INTEGER PRIMARY KEY NOT NULL,
- extid VARCHAR(256) UNIQUE
- )
- ''')
-
-moved_entities = sql('SELECT -eid, extid FROM entities WHERE eid < 0',
- ask_confirm=False)
-if moved_entities:
- cu.executemany('INSERT INTO moved_entities (eid, extid) VALUES (%s, %s)',
- moved_entities)
- sql('DELETE FROM entities WHERE eid < 0')
-
-commit()
-
-sync_schema_props_perms('CWEType')
-
-sync_schema_props_perms('cwuri')
-
-from cubicweb.server.schema2sql import check_constraint
-
-for cwconstraint in rql('Any C WHERE R constrained_by C').entities():
- cwrdef = cwconstraint.reverse_constrained_by[0]
- rdef = cwrdef.yams_schema()
- cstr = rdef.constraint_by_eid(cwconstraint.eid)
- if cstr.type() not in ('BoundaryConstraint', 'IntervalBoundConstraint', 'StaticVocabularyConstraint'):
- continue
- cstrname, check = check_constraint(rdef.subject, rdef.object, rdef.rtype.type,
- cstr, helper, prefix='cw_')
- args = {'e': rdef.subject.type, 'c': cstrname, 'v': check}
- if repo.system_source.dbdriver == 'postgres':
- sql('ALTER TABLE cw_%(e)s DROP CONSTRAINT IF EXISTS %(c)s' % args)
- elif repo.system_source.dbdriver.startswith('sqlserver'):
- sql("IF OBJECT_ID('%(c)s', 'C') IS NOT NULL "
- "ALTER TABLE cw_%(e)s DROP CONSTRAINT %(c)s" % args)
- sql('ALTER TABLE cw_%(e)s ADD CONSTRAINT %(c)s CHECK(%(v)s)' % args)
-commit()