Revert "Merge pull request #1678 from coreos-inc/delete-repo-fix"

This reverts commit df64caf133, reversing
changes made to 0d1e453566.

data/database.py

@@ -46,32 +46,6 @@ def real_for_update(query):
 def null_for_update(query):
   return query
 
-def _clear_log_entries(instance, model_class, log_entry_field, *extra_fields):
-  """ Temporary method for clearing out LogEntry records before the general deletion of a
-      dependent record (e.g. Repository or User). Used because deleting all of the log entries
-      under a transaction destroys the database for all other work.
-  """
-  # TODO: Remove this hack once LogEntry no longer has foreign key constraints to everything.
-  # Delete all records in LogEntry that reference the instance.
-  where_clause = (log_entry_field == instance)
-  for field in extra_fields:
-    where_clause = where_clause | (field == instance)
-
-  # Delete the log entries in chunks of 1000.
-  deleted_count = 1
-  while deleted_count >= 1:
-    todelete = (LogEntry
-                .select(LogEntry.id)
-                .where(where_clause)
-                .limit(1000)
-                .alias('todelete'))
-
-    subquery = (LogEntry
-                .select(todelete.c.id)
-                .from_(todelete))
-
-    deleted_count = LogEntry.delete().where(LogEntry.id << subquery).execute()
-
 def delete_instance_filtered(instance, model_class, delete_nullable, skip_transitive_deletes):
   """ Deletes the DB instance recursively, skipping any models in the skip_transitive_deletes set.
 
@@ -114,7 +88,6 @@ def delete_instance_filtered(instance, model_class, delete_nullable, skip_transi
   with db_transaction():
     for query, fk in filtered_ops:
       model = fk.model_class
-
       if fk.null and not delete_nullable:
         model.update(**{fk.name: None}).where(query).execute()
       else:
@@ -347,7 +320,6 @@ class User(BaseModel):
       # These models don't need to use transitive deletes, because the referenced objects
       # are cleaned up directly
       skip_transitive_deletes = {Image}
-      _clear_log_entries(self, User, LogEntry.performer, LogEntry.account)
       delete_instance_filtered(self, User, delete_nullable, skip_transitive_deletes)
 
 
@@ -444,7 +416,7 @@ class Repository(BaseModel):
     # are cleaned up directly
     skip_transitive_deletes = {RepositoryTag, RepositoryBuild, RepositoryBuildTrigger, BlobUpload,
                                Image, TagManifest, DerivedStorageForImage}
-    _clear_log_entries(self, User, LogEntry.repository)
+
     delete_instance_filtered(self, Repository, delete_nullable, skip_transitive_deletes)
 
 

test/test_api_usage.py

@@ -1654,17 +1654,14 @@ class log_queries(object):
 
 
 class check_transitive_deletes(log_queries):
-  def __init__(self, allowed_query_check=None):
+  def __init__(self):
     super(check_transitive_deletes, self).__init__(query_filter=r'^DELETE.+IN \(SELECT.+$')
-    self.allowed_query_check = allowed_query_check
 
   def __exit__(self, exc_type, exc_val, exc_tb):
     super(check_transitive_deletes, self).__exit__(exc_type, exc_val, exc_tb)
     queries = self.get_queries()
-    if queries and self.allowed_query_check:
-      for query in queries:
-        if query.find(self.allowed_query_check) < 0:
-          raise Exception('Detected transitive deletion in queries: %s' % queries)
+    if queries:
+      raise Exception('Detected transitive deletion in queries: %s' % queries)
 
 
 class TestDeleteRepository(ApiTestCase):
@@ -1750,7 +1747,7 @@ class TestDeleteRepository(ApiTestCase):
                                  date=datetime.datetime.now() - datetime.timedelta(days=5), count=6)
 
     # Delete the repository.
-    with check_transitive_deletes(allowed_query_check='todelete'):
+    with check_transitive_deletes():
       self.deleteResponse(Repository, params=dict(repository=self.COMPLEX_REPO))
 
     # Verify the repo was deleted.