mirror of
https://github.com/django/django.git
synced 2024-12-01 15:42:04 +01:00
Refs #22608 -- Optimized migration optimizer and migrate by caching calls to str.lower()
This commit is contained in:
Ulrich Petri
Tim Graham
parent
ee86e59051
commit
391bb09bb0
@ -168,7 +168,7 @@ class MigrationAutodetector(object):
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and not old_field.rel.through._meta.auto_created):
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through_key = (
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old_field.rel.through._meta.app_label,
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old_field.rel.through._meta.object_name.lower(),
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old_field.rel.through._meta.model_name,
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)
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self.through_users[through_key] = (app_label, old_model_name, field_name)
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@ -322,47 +322,47 @@ class MigrationAutodetector(object):
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if dependency[2] is None and dependency[3] is True:
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return (
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isinstance(operation, operations.CreateModel) and
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operation.name.lower() == dependency[1].lower()
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operation.name_lower == dependency[1].lower()
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)
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# Created field
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elif dependency[2] is not None and dependency[3] is True:
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return (
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(
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isinstance(operation, operations.CreateModel) and
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operation.name.lower() == dependency[1].lower() and
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operation.name_lower == dependency[1].lower() and
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any(dependency[2] == x for x, y in operation.fields)
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) or
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(
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isinstance(operation, operations.AddField) and
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operation.model_name.lower() == dependency[1].lower() and
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operation.name.lower() == dependency[2].lower()
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operation.model_name_lower == dependency[1].lower() and
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operation.name_lower == dependency[2].lower()
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)
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)
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# Removed field
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elif dependency[2] is not None and dependency[3] is False:
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return (
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isinstance(operation, operations.RemoveField) and
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operation.model_name.lower() == dependency[1].lower() and
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operation.name.lower() == dependency[2].lower()
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operation.model_name_lower == dependency[1].lower() and
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operation.name_lower == dependency[2].lower()
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)
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# Removed model
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elif dependency[2] is None and dependency[3] is False:
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return (
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isinstance(operation, operations.DeleteModel) and
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operation.name.lower() == dependency[1].lower()
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operation.name_lower == dependency[1].lower()
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)
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# Field being altered
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elif dependency[2] is not None and dependency[3] == "alter":
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return (
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isinstance(operation, operations.AlterField) and
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operation.model_name.lower() == dependency[1].lower() and
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operation.name.lower() == dependency[2].lower()
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operation.model_name_lower == dependency[1].lower() and
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operation.name_lower == dependency[2].lower()
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)
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# order_with_respect_to being unset for a field
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elif dependency[2] is not None and dependency[3] == "order_wrt_unset":
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return (
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isinstance(operation, operations.AlterOrderWithRespectTo) and
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operation.name.lower() == dependency[1].lower() and
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operation.name_lower == dependency[1].lower() and
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(operation.order_with_respect_to or "").lower() != dependency[2].lower()
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)
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# Field is removed and part of an index/unique_together
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@ -370,7 +370,7 @@ class MigrationAutodetector(object):
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return (
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isinstance(operation, (operations.AlterUniqueTogether,
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operations.AlterIndexTogether)) and
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operation.name.lower() == dependency[1].lower()
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operation.name_lower == dependency[1].lower()
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)
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# Unknown dependency. Raise an error.
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else:
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@ -696,7 +696,7 @@ class MigrationAutodetector(object):
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for name, field in sorted(related_fields.items()):
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dependencies.append((app_label, model_name, name, False))
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# We're referenced in another field's through=
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through_user = self.through_users.get((app_label, model_state.name.lower()), None)
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through_user = self.through_users.get((app_label, model_state.name_lower), None)
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if through_user:
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dependencies.append((through_user[0], through_user[1], through_user[2], False))
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# Finally, make the operation, deduping any dependencies
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@ -842,7 +842,7 @@ class MigrationAutodetector(object):
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if hasattr(new_field, "rel") and getattr(new_field.rel, "to", None):
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rename_key = (
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new_field.rel.to._meta.app_label,
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new_field.rel.to._meta.object_name.lower(),
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new_field.rel.to._meta.model_name,
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)
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if rename_key in self.renamed_models:
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new_field.rel.to = old_field.rel.to
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@ -1094,16 +1094,16 @@ class MigrationAutodetector(object):
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"""
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if len(ops) == 1:
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if isinstance(ops[0], operations.CreateModel):
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return ops[0].name.lower()
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return ops[0].name_lower
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elif isinstance(ops[0], operations.DeleteModel):
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return "delete_%s" % ops[0].name.lower()
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return "delete_%s" % ops[0].name_lower
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elif isinstance(ops[0], operations.AddField):
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return "%s_%s" % (ops[0].model_name.lower(), ops[0].name.lower())
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return "%s_%s" % (ops[0].model_name_lower, ops[0].name_lower)
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elif isinstance(ops[0], operations.RemoveField):
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return "remove_%s_%s" % (ops[0].model_name.lower(), ops[0].name.lower())
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return "remove_%s_%s" % (ops[0].model_name_lower, ops[0].name_lower)
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elif len(ops) > 1:
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if all(isinstance(o, operations.CreateModel) for o in ops):
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return "_".join(sorted(o.name.lower() for o in ops))
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return "_".join(sorted(o.name_lower for o in ops))
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return "auto_%s" % datetime.datetime.now().strftime("%Y%m%d_%H%M")
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@classmethod
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@ -2,6 +2,7 @@ from __future__ import unicode_literals
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from django.db.models.fields import NOT_PROVIDED
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from django.utils import six
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from django.utils.functional import cached_property
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from .base import Operation
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@ -16,6 +17,14 @@ class AddField(Operation):
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self.field = field
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self.preserve_default = preserve_default
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@cached_property
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def name_lower(self):
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return self.name.lower()
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@cached_property
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def model_name_lower(self):
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return self.model_name.lower()
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def deconstruct(self):
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kwargs = {
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'model_name': self.model_name,
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@ -37,8 +46,8 @@ class AddField(Operation):
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field.default = NOT_PROVIDED
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else:
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field = self.field
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state.models[app_label, self.model_name.lower()].fields.append((self.name, field))
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state.reload_model(app_label, self.model_name)
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state.models[app_label, self.model_name_lower].fields.append((self.name, field))
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state.reload_model(app_label, self.model_name_lower)
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def database_forwards(self, app_label, schema_editor, from_state, to_state):
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to_model = to_state.apps.get_model(app_label, self.model_name)
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@ -63,10 +72,10 @@ class AddField(Operation):
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return "Add field %s to %s" % (self.name, self.model_name)
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def references_model(self, name, app_label=None):
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return name.lower() == self.model_name.lower()
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return name.lower() == self.model_name_lower
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def references_field(self, model_name, name, app_label=None):
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return self.references_model(model_name) and name.lower() == self.name.lower()
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return self.references_model(model_name) and name.lower() == self.name_lower
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class RemoveField(Operation):
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@ -78,6 +87,14 @@ class RemoveField(Operation):
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self.model_name = model_name
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self.name = name
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@cached_property
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def name_lower(self):
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return self.name.lower()
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@cached_property
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def model_name_lower(self):
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return self.model_name.lower()
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def deconstruct(self):
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kwargs = {
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'model_name': self.model_name,
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@ -91,11 +108,11 @@ class RemoveField(Operation):
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def state_forwards(self, app_label, state):
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new_fields = []
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for name, instance in state.models[app_label, self.model_name.lower()].fields:
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for name, instance in state.models[app_label, self.model_name_lower].fields:
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if name != self.name:
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new_fields.append((name, instance))
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state.models[app_label, self.model_name.lower()].fields = new_fields
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state.reload_model(app_label, self.model_name)
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state.models[app_label, self.model_name_lower].fields = new_fields
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state.reload_model(app_label, self.model_name_lower)
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def database_forwards(self, app_label, schema_editor, from_state, to_state):
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from_model = from_state.apps.get_model(app_label, self.model_name)
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@ -112,10 +129,10 @@ class RemoveField(Operation):
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return "Remove field %s from %s" % (self.name, self.model_name)
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def references_model(self, name, app_label=None):
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return name.lower() == self.model_name.lower()
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return name.lower() == self.model_name_lower
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def references_field(self, model_name, name, app_label=None):
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return self.references_model(model_name) and name.lower() == self.name.lower()
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return self.references_model(model_name) and name.lower() == self.name_lower
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class AlterField(Operation):
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@ -129,6 +146,14 @@ class AlterField(Operation):
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self.field = field
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self.preserve_default = preserve_default
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@cached_property
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def name_lower(self):
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return self.name.lower()
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@cached_property
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def model_name_lower(self):
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return self.model_name.lower()
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def deconstruct(self):
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kwargs = {
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'model_name': self.model_name,
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@ -149,10 +174,12 @@ class AlterField(Operation):
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field.default = NOT_PROVIDED
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else:
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field = self.field
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state.models[app_label, self.model_name.lower()].fields = [
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(n, field if n == self.name else f) for n, f in state.models[app_label, self.model_name.lower()].fields
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state.models[app_label, self.model_name_lower].fields = [
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(n, field if n == self.name else f)
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for n, f in
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state.models[app_label, self.model_name_lower].fields
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]
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state.reload_model(app_label, self.model_name)
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state.reload_model(app_label, self.model_name_lower)
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def database_forwards(self, app_label, schema_editor, from_state, to_state):
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to_model = to_state.apps.get_model(app_label, self.model_name)
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@ -181,10 +208,10 @@ class AlterField(Operation):
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return "Alter field %s on %s" % (self.name, self.model_name)
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def references_model(self, name, app_label=None):
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return name.lower() == self.model_name.lower()
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return name.lower() == self.model_name_lower
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def references_field(self, model_name, name, app_label=None):
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return self.references_model(model_name) and name.lower() == self.name.lower()
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return self.references_model(model_name) and name.lower() == self.name_lower
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class RenameField(Operation):
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@ -197,6 +224,18 @@ class RenameField(Operation):
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self.old_name = old_name
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self.new_name = new_name
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@cached_property
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def old_name_lower(self):
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return self.old_name.lower()
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@cached_property
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def new_name_lower(self):
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return self.new_name.lower()
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@cached_property
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def model_name_lower(self):
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return self.model_name.lower()
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def deconstruct(self):
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kwargs = {
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'model_name': self.model_name,
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@ -211,19 +250,19 @@ class RenameField(Operation):
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def state_forwards(self, app_label, state):
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# Rename the field
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state.models[app_label, self.model_name.lower()].fields = [
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state.models[app_label, self.model_name_lower].fields = [
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(self.new_name if n == self.old_name else n, f)
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for n, f in state.models[app_label, self.model_name.lower()].fields
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for n, f in state.models[app_label, self.model_name_lower].fields
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]
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# Fix index/unique_together to refer to the new field
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options = state.models[app_label, self.model_name.lower()].options
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options = state.models[app_label, self.model_name_lower].options
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for option in ('index_together', 'unique_together'):
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if option in options:
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options[option] = [
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[self.new_name if n == self.old_name else n for n in together]
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for together in options[option]
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]
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state.reload_model(app_label, self.model_name)
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state.reload_model(app_label, self.model_name_lower)
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def database_forwards(self, app_label, schema_editor, from_state, to_state):
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to_model = to_state.apps.get_model(app_label, self.model_name)
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@ -249,10 +288,10 @@ class RenameField(Operation):
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return "Rename field %s on %s to %s" % (self.old_name, self.model_name, self.new_name)
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def references_model(self, name, app_label=None):
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return name.lower() == self.model_name.lower()
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return name.lower() == self.model_name_lower
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def references_field(self, model_name, name, app_label=None):
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return self.references_model(model_name) and (
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name.lower() == self.old_name.lower() or
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name.lower() == self.new_name.lower()
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name.lower() == self.old_name_lower or
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name.lower() == self.new_name_lower
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)
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@ -5,6 +5,7 @@ from django.db.models.options import normalize_together
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from django.db.migrations.state import ModelState
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from django.db.migrations.operations.base import Operation
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from django.utils import six
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from django.utils.functional import cached_property
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class CreateModel(Operation):
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@ -21,6 +22,10 @@ class CreateModel(Operation):
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self.bases = bases or (models.Model,)
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self.managers = managers or []
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@cached_property
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def name_lower(self):
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return self.name.lower()
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def deconstruct(self):
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kwargs = {
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'name': self.name,
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@ -87,6 +92,10 @@ class DeleteModel(Operation):
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def __init__(self, name):
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self.name = name
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@cached_property
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def name_lower(self):
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return self.name.lower()
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def deconstruct(self):
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kwargs = {
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'name': self.name,
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@ -98,7 +107,7 @@ class DeleteModel(Operation):
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)
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def state_forwards(self, app_label, state):
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state.remove_model(app_label, self.name)
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state.remove_model(app_label, self.name_lower)
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def database_forwards(self, app_label, schema_editor, from_state, to_state):
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model = from_state.apps.get_model(app_label, self.name)
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@ -111,7 +120,7 @@ class DeleteModel(Operation):
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schema_editor.create_model(model)
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def references_model(self, name, app_label=None):
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return name.lower() == self.name.lower()
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return name.lower() == self.name_lower
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def describe(self):
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return "Delete model %s" % (self.name, )
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@ -126,6 +135,14 @@ class RenameModel(Operation):
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self.old_name = old_name
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self.new_name = new_name
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@cached_property
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def old_name_lower(self):
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return self.old_name.lower()
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@cached_property
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def new_name_lower(self):
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return self.new_name.lower()
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def deconstruct(self):
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kwargs = {
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'old_name': self.old_name,
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@ -147,18 +164,18 @@ class RenameModel(Operation):
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if f.auto_created and not f.concrete and not (f.hidden or f.many_to_many)
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)
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# Rename the model
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state.models[app_label, self.new_name.lower()] = state.models[app_label, self.old_name.lower()]
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state.models[app_label, self.new_name.lower()].name = self.new_name
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state.remove_model(app_label, self.old_name)
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state.models[app_label, self.new_name_lower] = state.models[app_label, self.old_name_lower]
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state.models[app_label, self.new_name_lower].name = self.new_name
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state.remove_model(app_label, self.old_name_lower)
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# Repoint the FKs and M2Ms pointing to us
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for related_object in all_related_objects:
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# Use the new related key for self referential related objects.
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if related_object.related_model == model:
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related_key = (app_label, self.new_name.lower())
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related_key = (app_label, self.new_name_lower)
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else:
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related_key = (
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related_object.related_model._meta.app_label,
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related_object.related_model._meta.object_name.lower(),
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related_object.related_model._meta.model_name,
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)
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new_fields = []
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for name, field in state.models[related_key].fields:
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@ -168,7 +185,7 @@ class RenameModel(Operation):
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new_fields.append((name, field))
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state.models[related_key].fields = new_fields
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state.reload_model(*related_key)
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state.reload_model(app_label, self.new_name)
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state.reload_model(app_label, self.new_name_lower)
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def database_forwards(self, app_label, schema_editor, from_state, to_state):
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new_model = to_state.apps.get_model(app_label, self.new_name)
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@ -184,12 +201,12 @@ class RenameModel(Operation):
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for related_object in old_model._meta.related_objects:
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if related_object.related_model == old_model:
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model = new_model
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related_key = (app_label, self.new_name.lower())
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related_key = (app_label, self.new_name_lower)
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else:
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model = related_object.related_model
|
||||
related_key = (
|
||||
related_object.related_model._meta.app_label,
|
||||
related_object.related_model._meta.object_name.lower(),
|
||||
related_object.related_model._meta.model_name,
|
||||
)
|
||||
to_field = to_state.apps.get_model(
|
||||
*related_key
|
||||
@ -201,14 +218,18 @@ class RenameModel(Operation):
|
||||
)
|
||||
|
||||
def database_backwards(self, app_label, schema_editor, from_state, to_state):
|
||||
self.new_name_lower, self.old_name_lower = self.old_name_lower, self.new_name_lower
|
||||
self.new_name, self.old_name = self.old_name, self.new_name
|
||||
|
||||
self.database_forwards(app_label, schema_editor, from_state, to_state)
|
||||
|
||||
self.new_name_lower, self.old_name_lower = self.old_name_lower, self.new_name_lower
|
||||
self.new_name, self.old_name = self.old_name, self.new_name
|
||||
|
||||
def references_model(self, name, app_label=None):
|
||||
return (
|
||||
name.lower() == self.old_name.lower() or
|
||||
name.lower() == self.new_name.lower()
|
||||
name.lower() == self.old_name_lower or
|
||||
name.lower() == self.new_name_lower
|
||||
)
|
||||
|
||||
def describe(self):
|
||||
@ -224,6 +245,10 @@ class AlterModelTable(Operation):
|
||||
self.name = name
|
||||
self.table = table
|
||||
|
||||
@cached_property
|
||||
def name_lower(self):
|
||||
return self.name.lower()
|
||||
|
||||
def deconstruct(self):
|
||||
kwargs = {
|
||||
'name': self.name,
|
||||
@ -236,8 +261,8 @@ class AlterModelTable(Operation):
|
||||
)
|
||||
|
||||
def state_forwards(self, app_label, state):
|
||||
state.models[app_label, self.name.lower()].options["db_table"] = self.table
|
||||
state.reload_model(app_label, self.name)
|
||||
state.models[app_label, self.name_lower].options["db_table"] = self.table
|
||||
state.reload_model(app_label, self.name_lower)
|
||||
|
||||
def database_forwards(self, app_label, schema_editor, from_state, to_state):
|
||||
new_model = to_state.apps.get_model(app_label, self.name)
|
||||
@ -261,7 +286,7 @@ class AlterModelTable(Operation):
|
||||
return self.database_forwards(app_label, schema_editor, from_state, to_state)
|
||||
|
||||
def references_model(self, name, app_label=None):
|
||||
return name.lower() == self.name.lower()
|
||||
return name.lower() == self.name_lower
|
||||
|
||||
def describe(self):
|
||||
return "Rename table for %s to %s" % (self.name, self.table)
|
||||
@ -279,6 +304,10 @@ class AlterUniqueTogether(Operation):
|
||||
unique_together = normalize_together(unique_together)
|
||||
self.unique_together = set(tuple(cons) for cons in unique_together)
|
||||
|
||||
@cached_property
|
||||
def name_lower(self):
|
||||
return self.name.lower()
|
||||
|
||||
def deconstruct(self):
|
||||
kwargs = {
|
||||
'name': self.name,
|
||||
@ -291,9 +320,9 @@ class AlterUniqueTogether(Operation):
|
||||
)
|
||||
|
||||
def state_forwards(self, app_label, state):
|
||||
model_state = state.models[app_label, self.name.lower()]
|
||||
model_state = state.models[app_label, self.name_lower]
|
||||
model_state.options[self.option_name] = self.unique_together
|
||||
state.reload_model(app_label, self.name)
|
||||
state.reload_model(app_label, self.name_lower)
|
||||
|
||||
def database_forwards(self, app_label, schema_editor, from_state, to_state):
|
||||
new_model = to_state.apps.get_model(app_label, self.name)
|
||||
@ -309,7 +338,7 @@ class AlterUniqueTogether(Operation):
|
||||
return self.database_forwards(app_label, schema_editor, from_state, to_state)
|
||||
|
||||
def references_model(self, name, app_label=None):
|
||||
return name.lower() == self.name.lower()
|
||||
return name.lower() == self.name_lower
|
||||
|
||||
def describe(self):
|
||||
return "Alter %s for %s (%s constraint(s))" % (self.option_name, self.name, len(self.unique_together or ''))
|
||||
@ -327,6 +356,10 @@ class AlterIndexTogether(Operation):
|
||||
index_together = normalize_together(index_together)
|
||||
self.index_together = set(tuple(cons) for cons in index_together)
|
||||
|
||||
@cached_property
|
||||
def name_lower(self):
|
||||
return self.name.lower()
|
||||
|
||||
def deconstruct(self):
|
||||
kwargs = {
|
||||
'name': self.name,
|
||||
@ -339,9 +372,9 @@ class AlterIndexTogether(Operation):
|
||||
)
|
||||
|
||||
def state_forwards(self, app_label, state):
|
||||
model_state = state.models[app_label, self.name.lower()]
|
||||
model_state = state.models[app_label, self.name_lower]
|
||||
model_state.options[self.option_name] = self.index_together
|
||||
state.reload_model(app_label, self.name)
|
||||
state.reload_model(app_label, self.name_lower)
|
||||
|
||||
def database_forwards(self, app_label, schema_editor, from_state, to_state):
|
||||
new_model = to_state.apps.get_model(app_label, self.name)
|
||||
@ -357,7 +390,7 @@ class AlterIndexTogether(Operation):
|
||||
return self.database_forwards(app_label, schema_editor, from_state, to_state)
|
||||
|
||||
def references_model(self, name, app_label=None):
|
||||
return name.lower() == self.name.lower()
|
||||
return name.lower() == self.name_lower
|
||||
|
||||
def describe(self):
|
||||
return "Alter %s for %s (%s constraint(s))" % (self.option_name, self.name, len(self.index_together or ''))
|
||||
@ -372,6 +405,10 @@ class AlterOrderWithRespectTo(Operation):
|
||||
self.name = name
|
||||
self.order_with_respect_to = order_with_respect_to
|
||||
|
||||
@cached_property
|
||||
def name_lower(self):
|
||||
return self.name.lower()
|
||||
|
||||
def deconstruct(self):
|
||||
kwargs = {
|
||||
'name': self.name,
|
||||
@ -384,9 +421,9 @@ class AlterOrderWithRespectTo(Operation):
|
||||
)
|
||||
|
||||
def state_forwards(self, app_label, state):
|
||||
model_state = state.models[app_label, self.name.lower()]
|
||||
model_state = state.models[app_label, self.name_lower]
|
||||
model_state.options['order_with_respect_to'] = self.order_with_respect_to
|
||||
state.reload_model(app_label, self.name)
|
||||
state.reload_model(app_label, self.name_lower)
|
||||
|
||||
def database_forwards(self, app_label, schema_editor, from_state, to_state):
|
||||
to_model = to_state.apps.get_model(app_label, self.name)
|
||||
@ -410,7 +447,7 @@ class AlterOrderWithRespectTo(Operation):
|
||||
self.database_forwards(app_label, schema_editor, from_state, to_state)
|
||||
|
||||
def references_model(self, name, app_label=None):
|
||||
return name.lower() == self.name.lower()
|
||||
return name.lower() == self.name_lower
|
||||
|
||||
def describe(self):
|
||||
return "Set order_with_respect_to on %s to %s" % (self.name, self.order_with_respect_to)
|
||||
@ -439,6 +476,10 @@ class AlterModelOptions(Operation):
|
||||
self.name = name
|
||||
self.options = options
|
||||
|
||||
@cached_property
|
||||
def name_lower(self):
|
||||
return self.name.lower()
|
||||
|
||||
def deconstruct(self):
|
||||
kwargs = {
|
||||
'name': self.name,
|
||||
@ -451,13 +492,13 @@ class AlterModelOptions(Operation):
|
||||
)
|
||||
|
||||
def state_forwards(self, app_label, state):
|
||||
model_state = state.models[app_label, self.name.lower()]
|
||||
model_state = state.models[app_label, self.name_lower]
|
||||
model_state.options = dict(model_state.options)
|
||||
model_state.options.update(self.options)
|
||||
for key in self.ALTER_OPTION_KEYS:
|
||||
if key not in self.options and key in model_state.options:
|
||||
del model_state.options[key]
|
||||
state.reload_model(app_label, self.name)
|
||||
state.reload_model(app_label, self.name_lower)
|
||||
|
||||
def database_forwards(self, app_label, schema_editor, from_state, to_state):
|
||||
pass
|
||||
@ -466,7 +507,7 @@ class AlterModelOptions(Operation):
|
||||
pass
|
||||
|
||||
def references_model(self, name, app_label=None):
|
||||
return name.lower() == self.name.lower()
|
||||
return name.lower() == self.name_lower
|
||||
|
||||
def describe(self):
|
||||
return "Change Meta options on %s" % (self.name, )
|
||||
@ -483,6 +524,10 @@ class AlterModelManagers(Operation):
|
||||
self.name = name
|
||||
self.managers = managers
|
||||
|
||||
@cached_property
|
||||
def name_lower(self):
|
||||
return self.name.lower()
|
||||
|
||||
def deconstruct(self):
|
||||
return (
|
||||
self.__class__.__name__,
|
||||
@ -491,7 +536,7 @@ class AlterModelManagers(Operation):
|
||||
)
|
||||
|
||||
def state_forwards(self, app_label, state):
|
||||
model_state = state.models[app_label, self.name.lower()]
|
||||
model_state = state.models[app_label, self.name_lower]
|
||||
model_state.managers = list(self.managers)
|
||||
|
||||
def database_forwards(self, app_label, schema_editor, from_state, to_state):
|
||||
@ -501,7 +546,7 @@ class AlterModelManagers(Operation):
|
||||
pass
|
||||
|
||||
def references_model(self, name, app_label=None):
|
||||
return name.lower() == self.name.lower()
|
||||
return name.lower() == self.name_lower
|
||||
|
||||
def describe(self):
|
||||
return "Change managers on %s" % (self.name, )
|
||||
|
||||
@ -177,7 +177,7 @@ class MigrationOptimizer(object):
|
||||
"""
|
||||
Folds a CreateModel and a DeleteModel into nothing.
|
||||
"""
|
||||
if (operation.name.lower() == other.name.lower() and
|
||||
if (operation.name_lower == other.name_lower and
|
||||
not operation.options.get("proxy", False)):
|
||||
return []
|
||||
|
||||
@ -185,14 +185,14 @@ class MigrationOptimizer(object):
|
||||
"""
|
||||
Folds an AlterModelSomething and a DeleteModel into just delete.
|
||||
"""
|
||||
if operation.name.lower() == other.name.lower():
|
||||
if operation.name_lower == other.name_lower:
|
||||
return [other]
|
||||
|
||||
def reduce_model_create_rename(self, operation, other, in_between):
|
||||
"""
|
||||
Folds a model rename into its create
|
||||
"""
|
||||
if operation.name.lower() == other.old_name.lower():
|
||||
if operation.name_lower == other.old_name_lower:
|
||||
return [
|
||||
migrations.CreateModel(
|
||||
other.new_name,
|
||||
@ -206,7 +206,7 @@ class MigrationOptimizer(object):
|
||||
"""
|
||||
Folds a model rename into another one
|
||||
"""
|
||||
if operation.new_name.lower() == other.old_name.lower():
|
||||
if operation.new_name_lower == other.old_name_lower:
|
||||
return [
|
||||
migrations.RenameModel(
|
||||
operation.old_name,
|
||||
@ -215,7 +215,7 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_create_model_add_field(self, operation, other, in_between):
|
||||
if operation.name.lower() == other.model_name.lower():
|
||||
if operation.name_lower == other.model_name_lower:
|
||||
# Don't allow optimisations of FKs through models they reference
|
||||
if hasattr(other.field, "rel") and other.field.rel:
|
||||
for between in in_between:
|
||||
@ -239,7 +239,7 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_create_model_alter_field(self, operation, other, in_between):
|
||||
if operation.name.lower() == other.model_name.lower():
|
||||
if operation.name_lower == other.model_name_lower:
|
||||
return [
|
||||
migrations.CreateModel(
|
||||
operation.name,
|
||||
@ -253,7 +253,7 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_create_model_rename_field(self, operation, other, in_between):
|
||||
if operation.name.lower() == other.model_name.lower():
|
||||
if operation.name_lower == other.model_name_lower:
|
||||
return [
|
||||
migrations.CreateModel(
|
||||
operation.name,
|
||||
@ -267,14 +267,14 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_create_model_remove_field(self, operation, other, in_between):
|
||||
if operation.name.lower() == other.model_name.lower():
|
||||
if operation.name_lower == other.model_name_lower:
|
||||
return [
|
||||
migrations.CreateModel(
|
||||
operation.name,
|
||||
fields=[
|
||||
(n, v)
|
||||
for n, v in operation.fields
|
||||
if n.lower() != other.name.lower()
|
||||
if n.lower() != other.name_lower
|
||||
],
|
||||
options=operation.options,
|
||||
bases=operation.bases,
|
||||
@ -282,7 +282,8 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_add_field_alter_field(self, operation, other, in_between):
|
||||
if operation.model_name.lower() == other.model_name.lower() and operation.name.lower() == other.name.lower():
|
||||
if (operation.model_name_lower == other.model_name_lower and
|
||||
operation.name_lower == other.name_lower):
|
||||
return [
|
||||
migrations.AddField(
|
||||
model_name=operation.model_name,
|
||||
@ -292,16 +293,18 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_add_field_delete_field(self, operation, other, in_between):
|
||||
if operation.model_name.lower() == other.model_name.lower() and operation.name.lower() == other.name.lower():
|
||||
if (operation.model_name_lower == other.model_name_lower and
|
||||
operation.name_lower == other.name_lower):
|
||||
return []
|
||||
|
||||
def reduce_alter_field_delete_field(self, operation, other, in_between):
|
||||
if operation.model_name.lower() == other.model_name.lower() and operation.name.lower() == other.name.lower():
|
||||
if (operation.model_name_lower == other.model_name_lower and
|
||||
operation.name_lower == other.name_lower):
|
||||
return [other]
|
||||
|
||||
def reduce_add_field_rename_field(self, operation, other, in_between):
|
||||
if (operation.model_name.lower() == other.model_name.lower() and
|
||||
operation.name.lower() == other.old_name.lower()):
|
||||
if (operation.model_name_lower == other.model_name_lower and
|
||||
operation.name_lower == other.old_name_lower):
|
||||
return [
|
||||
migrations.AddField(
|
||||
model_name=operation.model_name,
|
||||
@ -311,8 +314,8 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_alter_field_rename_field(self, operation, other, in_between):
|
||||
if (operation.model_name.lower() == other.model_name.lower() and
|
||||
operation.name.lower() == other.old_name.lower()):
|
||||
if (operation.model_name_lower == other.model_name_lower and
|
||||
operation.name_lower == other.old_name_lower):
|
||||
return [
|
||||
other,
|
||||
migrations.AlterField(
|
||||
@ -323,8 +326,8 @@ class MigrationOptimizer(object):
|
||||
]
|
||||
|
||||
def reduce_rename_field_self(self, operation, other, in_between):
|
||||
if (operation.model_name.lower() == other.model_name.lower() and
|
||||
operation.new_name.lower() == other.old_name.lower()):
|
||||
if (operation.model_name_lower == other.model_name_lower and
|
||||
operation.new_name_lower == other.old_name_lower):
|
||||
return [
|
||||
migrations.RenameField(
|
||||
operation.model_name,
|
||||
|
||||
@ -33,13 +33,12 @@ class ProjectState(object):
|
||||
self.real_apps = real_apps or []
|
||||
|
||||
def add_model(self, model_state):
|
||||
app_label, model_name = model_state.app_label, model_state.name.lower()
|
||||
app_label, model_name = model_state.app_label, model_state.name_lower
|
||||
self.models[(app_label, model_name)] = model_state
|
||||
if 'apps' in self.__dict__: # hasattr would cache the property
|
||||
self.reload_model(app_label, model_name)
|
||||
|
||||
def remove_model(self, app_label, model_name):
|
||||
model_name = model_name.lower()
|
||||
del self.models[app_label, model_name]
|
||||
if 'apps' in self.__dict__: # hasattr would cache the property
|
||||
self.apps.unregister_model(app_label, model_name)
|
||||
@ -47,7 +46,6 @@ class ProjectState(object):
|
||||
def reload_model(self, app_label, model_name):
|
||||
if 'apps' in self.__dict__: # hasattr would cache the property
|
||||
# Get relations before reloading the models, as _meta.apps may change
|
||||
model_name = model_name.lower()
|
||||
try:
|
||||
related_old = {
|
||||
f.related_model for f in
|
||||
@ -94,7 +92,7 @@ class ProjectState(object):
|
||||
app_models = {}
|
||||
for model in apps.get_models(include_swapped=True):
|
||||
model_state = ModelState.from_model(model)
|
||||
app_models[(model_state.app_label, model_state.name.lower())] = model_state
|
||||
app_models[(model_state.app_label, model_state.name_lower)] = model_state
|
||||
return cls(app_models)
|
||||
|
||||
def __eq__(self, other):
|
||||
@ -240,6 +238,10 @@ class ModelState(object):
|
||||
'ModelState.fields cannot be bound to a model - "%s" is.' % name
|
||||
)
|
||||
|
||||
@cached_property
|
||||
def name_lower(self):
|
||||
return self.name.lower()
|
||||
|
||||
@classmethod
|
||||
def from_model(cls, model, exclude_rels=False):
|
||||
"""
|
||||
|
||||
Loading…
Reference in New Issue
Block a user