upgradeSchema bug fixes

Add some tests and fix bugs:
* https://nexedi.erp5.net/bug_module/20170426-A3962E
* another bug that columns names were not escaped ( in a project we have a custom table with a column named `use` and this breaks `upgradeSchema`  )

/reviewed-on nexedi/erp5!854

product/ERP5Catalog/CatalogTool.py

@@ -42,6 +42,7 @@ from Acquisition import aq_base, aq_inner, aq_parent, ImplicitAcquisitionWrapper
 from Products.CMFActivity.ActiveObject import ActiveObject
 from Products.CMFActivity.ActivityTool import GroupedMessage
 from Products.ERP5Type.TransactionalVariable import getTransactionalVariable
+from Products.ZMySQLDA.DA import DeferredConnection
 
 from AccessControl.PermissionRole import rolesForPermissionOn
 
@@ -1361,20 +1362,45 @@ class CatalogTool (UniqueObject, ZCatalog, CMFCoreCatalogTool, ActiveObject):
     security.declareProtected(Permissions.ManagePortal, 'upgradeSchema')
     def upgradeSchema(self, sql_catalog_id=None, src__=0):
       """Upgrade all catalog tables, with ALTER or CREATE queries"""
+      portal = self.getPortalObject()
       catalog = self.getSQLCatalog(sql_catalog_id)
-      connection_id = catalog.z_create_catalog.connection_id
-      src = []
-      db = self.getPortalObject()[connection_id]()
+
+      # group methods by connection
+      method_list_by_connection_id = defaultdict(list)
+      for method_id in catalog.sql_clear_catalog:
+        method = catalog[method_id]
+        method_list_by_connection_id[method.connection_id].append(method)
+
+      # Because we cannot select on deferred connections, _upgradeSchema
+      # cannot be used on SQL methods using a deferred connection.
+      # We try to find a "non deferred" connection using the same connection
+      # string and we'll use it instead.
+      connection_by_connection_id = {}
+      for connection_id in method_list_by_connection_id:
+        connection = portal[connection_id]
+        connection_string = connection.connection_string
+        connection_by_connection_id[connection_id] = connection
+        if isinstance(connection, DeferredConnection):
+          for other_connection in portal.objectValues(
+                spec=('Z MySQL Database Connection',)):
+            if connection_string == other_connection.connection_string:
+              connection_by_connection_id[connection_id] = other_connection
+              break
+
+      queries_by_connection_id = defaultdict(list)
+      for connection_id, method_list in method_list_by_connection_id.items():
+        connection = connection_by_connection_id[connection_id]
+        db = connection()
         with db.lock():
-        for clear_method in catalog.sql_clear_catalog:
-          r = catalog[clear_method]._upgradeSchema(
-            connection_id, create_if_not_exists=1, src__=1)
-          if r:
-            src.append(r)
+          for method in method_list:
+            query = method._upgradeSchema(connection.getId(), create_if_not_exists=1, src__=1)
+            if query:
+              queries_by_connection_id[connection_id].append(query)
           if not src__:
-          for r in src:
-            db.query(r)
-      return src
+            for query in queries_by_connection_id[connection_id]:
+              db.query(query)
+
+      return sum(queries_by_connection_id.values(), [])
 
     security.declarePublic('getDocumentValueList')
     def getDocumentValueList(self, sql_catalog_id=None,

product/ERP5Catalog/tests/testERP5Catalog.py

@@ -34,6 +34,7 @@ import httplib
 from AccessControl import getSecurityManager
 from AccessControl.SecurityManagement import newSecurityManager
 from DateTime import DateTime
+from _mysql_exceptions import ProgrammingError
 from OFS.ObjectManager import ObjectManager
 from Products.ERP5Type.tests.ERP5TypeTestCase import ERP5TypeTestCase
 from Products.ERP5Type.tests.utils import LogInterceptor, createZODBPythonScript, todo_erp5, getExtraSqlConnectionStringList
@@ -3830,7 +3831,135 @@ VALUES
     # but a proper page
     self.assertIn('<title>Catalog Tool - portal_catalog', ret.getBody())
 
-def test_suite():
-  suite = unittest.TestSuite()
-  suite.addTest(unittest.makeSuite(TestERP5Catalog))
-  return suite
+
+class CatalogToolUpgradeSchemaTestCase(ERP5TypeTestCase):
+  """Tests for "upgrade schema" feature of ERP5 Catalog.
+  """
+
+  def getBusinessTemplateList(self):
+    return ("erp5_full_text_mroonga_catalog",)
+
+  def afterSetUp(self):
+    # Add two connections
+    db1, db2 = getExtraSqlConnectionStringList()[:2]
+    addConnection = self.portal.manage_addProduct[
+        "ZMySQLDA"].manage_addZMySQLConnection
+    addConnection("erp5_test_connection_1", "", db1)
+    addConnection("erp5_test_connection_2", "", db2)
+    addConnection("erp5_test_connection_deferred_2", "", db2, deferred=True)
+
+    self.catalog_tool = self.portal.portal_catalog
+    self.catalog = self.catalog_tool.newContent(portal_type="Catalog")
+    self.catalog.newContent(
+        portal_type="SQL Method",
+        connection_id="erp5_test_connection_1",
+        id="z_create_catalog",
+        src="CREATE TABLE dummy_catalog (uid int)")
+
+    # These will be cleaned up at tear down
+    self._db1_table_list = ["dummy_catalog"]
+    self._db2_table_list = []
+
+  def beforeTearDown(self):
+    for table in self._db1_table_list:
+      self.query_connection_1("DROP TABLE IF EXISTS `%s`" % table)
+    for table in self._db2_table_list:
+      self.query_connection_2("DROP TABLE IF EXISTS `%s`" % table)
+    self.portal.manage_delObjects([
+            "erp5_test_connection_1",
+            "erp5_test_connection_2",
+            "erp5_test_connection_deferred_2"])
+    self.commit()
+
+  def query_connection_1(self, q):
+    return self.portal.erp5_test_connection_1().query(q)
+
+  def query_connection_2(self, q):
+    return self.portal.erp5_test_connection_2().query(q)
+
+  def upgradeSchema(self):
+    self.assertTrue(
+        self.catalog_tool.upgradeSchema(
+            sql_catalog_id=self.catalog.getId(), src__=True))
+
+    self.catalog_tool.upgradeSchema(sql_catalog_id=self.catalog.getId())
+    self.assertFalse(
+        self.catalog_tool.upgradeSchema(
+            sql_catalog_id=self.catalog.getId(), src__=True))
+
+  def test_upgradeSchema_add_table(self):
+    self._db1_table_list.append("add_table")
+    method = self.catalog.newContent(
+        portal_type="SQL Method",
+        connection_id="erp5_test_connection_1",
+        id=self.id(),
+        src="CREATE TABLE add_table (a int)")
+    self.catalog.setSqlClearCatalogList([method.getId()])
+    self.commit()
+
+    self.upgradeSchema()
+    self.commit()
+    self.query_connection_1("SELECT a from add_table")
+
+  def test_upgradeSchema_alter_table(self):
+    self._db1_table_list.append("altered_table")
+    self.query_connection_1("CREATE TABLE altered_table (a int)")
+    self.commit()
+    method = self.catalog.newContent(
+        portal_type="SQL Method",
+        connection_id="erp5_test_connection_1",
+        id=self.id(),
+        src="CREATE TABLE altered_table (a int, b int)")
+    self.catalog.setSqlClearCatalogList([method.getId()])
+    self.commit()
+
+    self.upgradeSchema()
+    self.commit()
+    self.query_connection_1("SELECT b from altered_table")
+
+  def test_upgradeSchema_multi_connections(self):
+    # Check that we can upgrade tables on more than one connection,
+    # like when using an external datawarehouse. This is a reproduction
+    # for https://nexedi.erp5.net/bug_module/20170426-A3962E
+    # In this test we use both "normal" and deferred connections,
+    # which is what happens in default erp5 catalog.
+    self._db1_table_list.append("table1")
+    self.query_connection_1("CREATE TABLE table1 (a int)")
+    self._db2_table_list.extend(("table2", "table_deferred2"))
+    self.query_connection_2("CREATE TABLE table2 (a int)")
+    self.query_connection_2("CREATE TABLE table_deferred2 (a int)")
+    self.commit()
+
+    method1 = self.catalog.newContent(
+        portal_type="SQL Method",
+        connection_id="erp5_test_connection_1",
+        src="CREATE TABLE table1 (a int, b int)")
+    method2 = self.catalog.newContent(
+        portal_type="SQL Method",
+        connection_id="erp5_test_connection_2",
+        src="CREATE TABLE table2 (a int, b int)")
+    method_deferred2 = self.catalog.newContent(
+        portal_type="SQL Method",
+        connection_id="erp5_test_connection_deferred_2",
+        src="CREATE TABLE table_deferred2 (a int, b int)")
+    self.catalog.setSqlClearCatalogList(
+        [method1.getId(),
+         method2.getId(),
+         method_deferred2.getId()])
+    self.commit()
+
+    self.upgradeSchema()
+    self.commit()
+    self.query_connection_1("SELECT b from table1")
+    self.query_connection_2("SELECT b from table2")
+    self.query_connection_2("SELECT b from table_deferred2")
+
+    with self.assertRaisesRegexp(ProgrammingError,
+                                 r"Table '.*\.table2' doesn't exist"):
+      self.query_connection_1("SELECT b from table2")
+    with self.assertRaisesRegexp(ProgrammingError,
+                                 r"Table '.*\.table_deferred2' doesn't exist"):
+      self.query_connection_1("SELECT b from table_deferred2")
+    with self.assertRaisesRegexp(ProgrammingError,
+                                 r"Table '.*\.table1' doesn't exist"):
+      self.query_connection_2("SELECT b from table1")

product/ZMySQLDA/db.py

@@ -530,7 +530,7 @@ class DB(TM):
         # already done it (in case that it plans to execute the returned query).
         with (nested if src__ else self.lock)():
             try:
-                old_list, old_set, old_default = self._getTableSchema(name)
+                old_list, old_set, old_default = self._getTableSchema("`%s`" % name)
             except ProgrammingError, e:
                 if e[0] != ER.NO_SUCH_TABLE or not create_if_not_exists:
                     raise
@@ -538,7 +538,7 @@ class DB(TM):
                     self.query(create_sql)
                 return create_sql
 
-            name_new = '_%s_new' % name
+            name_new = '`_%s_new`' % name
             self.query('CREATE TEMPORARY TABLE %s %s'
                 % (name_new, create_sql[m.end():]))
             try:
@@ -559,7 +559,7 @@ class DB(TM):
                   old_dict[column] = pos, spec
                   pos += 1
               else:
-                  q("DROP COLUMN " + column)
+                  q("DROP COLUMN `%s`" % column)
 
             for key in old_set - new_set:
               if "PRIMARY" in key:
@@ -574,26 +574,26 @@ class DB(TM):
                 try:
                     old = old_dict[column]
                 except KeyError:
-                    q("ADD COLUMN %s %s %s" % (column, spec, where))
+                    q("ADD COLUMN `%s` %s %s" % (column, spec, where))
                     column_list.append(column)
                 else:
                     if old != (pos, spec):
-                        q("MODIFY COLUMN %s %s %s" % (column, spec, where))
+                        q("MODIFY COLUMN `%s` %s %s" % (column, spec, where))
                         if old[1] != spec:
                             column_list.append(column)
                     pos += 1
-                where = "AFTER " + column
+                where = "AFTER `%s`" % column
 
             for key in new_set - old_set:
                 q("ADD " + key)
 
             if src:
-                src = "ALTER TABLE %s%s" % (name, ','.join("\n  " + q
+                src = "ALTER TABLE `%s`%s" % (name, ','.join("\n  " + q
                                                            for q in src))
                 if not src__:
                     self.query(src)
                     if column_list and initialize and self.query(
-                            "SELECT 1 FROM " + name, 1)[1]:
+                            "SELECT 1 FROM `%s`" % name, 1)[1]:
                         initialize(self, column_list)
                 return src
 

product/ZMySQLDA/tests/testTableStructureMigration.py

+##############################################################################
+# coding: utf-8
+# Copyright (c) 2019 Nexedi SA and Contributors. All Rights Reserved.
+#                     Jérome Perrin <jerome@nexedi.com>
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsability of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# garantees and support are strongly adviced to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+from textwrap import dedent
+
+from _mysql_exceptions import OperationalError
+from Shared.DC.ZRDB.DA import DA
+from Products.ERP5Type.tests.ERP5TypeTestCase import ERP5TypeTestCase
+
+
+class TestTableStructureMigrationTestCase(ERP5TypeTestCase):
+  def getBusinessTemplateList(self):
+    return 'erp5_full_text_mroonga_catalog',
+
+  def beforeTearDown(self):
+    self.portal.erp5_sql_connection().query('DROP table if exists X')
+    self.portal.erp5_sql_connection().query('DROP table if exists `table`')
+    self.commit()
+
+  def query(self, q):
+    return self.portal.erp5_sql_connection().query(q)
+
+  def check_upgrade_schema(self, previous_schema, new_schema, table_name='X'):
+    self.query(previous_schema)
+    da = DA(
+        id=self.id(),
+        title=self.id(),
+        connection_id=self.portal.erp5_sql_connection.getId(),
+        arguments=(),
+        template=new_schema).__of__(self.portal)
+    self.assertTrue(da._upgradeSchema(src__=True))
+    da._upgradeSchema()
+    self.assertFalse(da._upgradeSchema(src__=True))
+    self.assertEqual(
+        new_schema,
+        self.query('SHOW CREATE TABLE `%s`' % table_name)[1][0][1])
+
+  def test_add_column(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL,
+        `b` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""))
+    self.query("SELECT a, b FROM X")
+
+  def test_remove_column(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL,
+        `b` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `b` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""))
+    self.query("SELECT b FROM X")
+    with self.assertRaisesRegexp(OperationalError,
+                                 "Unknown column 'a' in 'field list'"):
+      self.query("SELECT a FROM X")
+
+  def test_rename_column(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `b` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""))
+    self.query("SELECT b FROM X")
+    with self.assertRaisesRegexp(OperationalError,
+                                 "Unknown column 'a' in 'field list'"):
+      self.query("SELECT a FROM X")
+
+  def test_change_column_type(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""))
+    # insterting 1 will be casted as string
+    self.query("INSERT INTO X VALUES (1)")
+    self.assertEqual(('1',), self.query("SELECT a FROM X")[1][0])
+
+  def test_change_column_default(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT 123
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""))
+    self.query("INSERT INTO X VALUES ()")
+    self.assertEqual((123,), self.query("SELECT a FROM X")[1][0])
+
+  def test_add_index(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL,
+        KEY `idx_a` (`a`)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""))
+    self.query("SELECT * FROM X USE INDEX (`idx_a`)")
+
+  def test_remove_index(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL,
+        KEY `idx_a` (`a`)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `X` (
+        `a` int(11) DEFAULT NULL
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""))
+    with self.assertRaisesRegexp(OperationalError,
+                                 "Key 'idx_a' doesn't exist in table 'X'"):
+      self.query("SELECT * FROM X USE INDEX (`idx_a`)")
+
+  def test_escape(self):
+    self.check_upgrade_schema(
+        dedent(
+            """\
+      CREATE TABLE `table` (
+        `drop` int(11) DEFAULT NULL,
+        `alter` int(11) DEFAULT NULL,
+        KEY `CASE` (`drop`)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        dedent(
+            """\
+      CREATE TABLE `table` (
+        `and` int(11) DEFAULT NULL,
+        `alter` varchar(255) COLLATE utf8_unicode_ci DEFAULT 'BETWEEN',
+        KEY `use` (`alter`)
+      ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci"""),
+        table_name='table')
+    self.query(
+        "SELECT `alter`, `and` FROM `table` USE INDEX (`use`)")