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[1.7.x] Limited lines to 119 characters in django/{contrib,db}.

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Refs #23395.

Backport of c9178ef17a (to decrease chance of backport conflicts) from master
This commit is contained in:
Berker Peksag
2014-10-25 07:42:44 +03:00
committed by Tim Graham
parent 9766ed6a0e
commit d73c7e5db6
9 changed files with 65 additions and 29 deletions
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6
django/db/migrations/autodetector.py
View File

@@ -162,7 +162,8 @@ class MigrationAutodetector(object):
old_model_state = self.from_state.models[app_label, old_model_name]
for field_name, field in old_model_state.fields:
old_field = self.old_apps.get_model(app_label, old_model_name)._meta.get_field_by_name(field_name)[0]
if hasattr(old_field, "rel") and getattr(old_field.rel, "through", None) and not old_field.rel.through._meta.auto_created:
if (hasattr(old_field, "rel") and getattr(old_field.rel, "through", None)
and not old_field.rel.through._meta.auto_created):
through_key = (
old_field.rel.through._meta.app_label,
old_field.rel.through._meta.object_name.lower(),
@@ -961,7 +962,8 @@ class MigrationAutodetector(object):
old_model_name = self.renamed_models.get((app_label, model_name), model_name)
old_model_state = self.from_state.models[app_label, old_model_name]
new_model_state = self.to_state.models[app_label, model_name]
if old_model_state.options.get("order_with_respect_to", None) != new_model_state.options.get("order_with_respect_to", None):
if (old_model_state.options.get("order_with_respect_to", None) !=
new_model_state.options.get("order_with_respect_to", None)):
# Make sure it comes second if we're adding
# (removal dependency is part of RemoveField)
dependencies = []

19
django/db/migrations/graph.py
View File

@@ -37,9 +37,13 @@ class MigrationGraph(object):
def add_dependency(self, migration, child, parent):
if child not in self.nodes:
raise KeyError("Migration %s dependencies reference nonexistent child node %r" % (migration, child))
raise KeyError(
"Migration %s dependencies reference nonexistent child node %r" % (migration, child)
)
if parent not in self.nodes:
raise KeyError("Migration %s dependencies reference nonexistent parent node %r" % (migration, parent))
raise KeyError(
"Migration %s dependencies reference nonexistent parent node %r" % (migration, parent)
)
self.dependencies.setdefault(child, set()).add(parent)
self.dependents.setdefault(parent, set()).add(child)
@@ -72,7 +76,8 @@ class MigrationGraph(object):
"""
roots = set()
for node in self.nodes:
if not any(key[0] == node[0] for key in self.dependencies.get(node, set())) and (not app or app == node[0]):
if (not any(key[0] == node[0] for key in self.dependencies.get(node, set()))
and (not app or app == node[0])):
roots.add(node)
return sorted(roots)
@@ -86,7 +91,8 @@ class MigrationGraph(object):
"""
leaves = set()
for node in self.nodes:
if not any(key[0] == node[0] for key in self.dependents.get(node, set())) and (not app or app == node[0]):
if (not any(key[0] == node[0] for key in self.dependents.get(node, set()))
and (not app or app == node[0])):
leaves.add(node)
return sorted(leaves)
@@ -116,7 +122,10 @@ class MigrationGraph(object):
return list(OrderedSet(visited))
def __str__(self):
return "Graph: %s nodes, %s edges" % (len(self.nodes), sum(len(x) for x in self.dependencies.values()))
return "Graph: %s nodes, %s edges" % (
len(self.nodes),
sum(len(x) for x in self.dependencies.values()),
)
def make_state(self, nodes=None, at_end=True, real_apps=None):
"""

8
django/db/migrations/loader.py
View File

@@ -108,7 +108,9 @@ class MigrationLoader(object):
break
raise
if not hasattr(migration_module, "Migration"):
raise BadMigrationError("Migration %s in app %s has no Migration class" % (migration_name, app_config.label))
raise BadMigrationError(
"Migration %s in app %s has no Migration class" % (migration_name, app_config.label)
)
# Ignore South-style migrations
if hasattr(migration_module.Migration, "forwards"):
south_style_migrations = True
@@ -129,7 +131,9 @@ class MigrationLoader(object):
if l == app_label and n.startswith(name_prefix):
results.append((l, n))
if len(results) > 1:
raise AmbiguityError("There is more than one migration for '%s' with the prefix '%s'" % (app_label, name_prefix))
raise AmbiguityError(
"There is more than one migration for '%s' with the prefix '%s'" % (app_label, name_prefix)
)
elif len(results) == 0:
raise KeyError("There no migrations for '%s' with the prefix '%s'" % (app_label, name_prefix))
else:

6
django/db/migrations/migration.py
View File

@@ -90,7 +90,8 @@ class Migration(object):
# there instead
if collect_sql and not operation.reduces_to_sql:
schema_editor.collected_sql.append("--")
schema_editor.collected_sql.append("-- MIGRATION NOW PERFORMS OPERATION THAT CANNOT BE WRITTEN AS SQL:")
schema_editor.collected_sql.append("-- MIGRATION NOW PERFORMS OPERATION THAT CANNOT BE "
"WRITTEN AS SQL:")
schema_editor.collected_sql.append("-- %s" % operation.describe())
schema_editor.collected_sql.append("--")
continue
@@ -122,7 +123,8 @@ class Migration(object):
# there instead
if collect_sql and not operation.reduces_to_sql:
schema_editor.collected_sql.append("--")
schema_editor.collected_sql.append("-- MIGRATION NOW PERFORMS OPERATION THAT CANNOT BE WRITTEN AS SQL:")
schema_editor.collected_sql.append("-- MIGRATION NOW PERFORMS OPERATION THAT CANNOT BE "
"WRITTEN AS SQL:")
schema_editor.collected_sql.append("-- %s" % operation.describe())
schema_editor.collected_sql.append("--")
continue

3
django/db/migrations/operations/fields.py
View File

@@ -174,7 +174,8 @@ class RenameField(Operation):
def state_forwards(self, app_label, state):
# Rename the field
state.models[app_label, self.model_name.lower()].fields = [
(self.new_name if n == self.old_name else n, f) for n, f in state.models[app_label, self.model_name.lower()].fields
(self.new_name if n == self.old_name else n, f)
for n, f in state.models[app_label, self.model_name.lower()].fields
]
# Fix unique_together to refer to the new field
options = state.models[app_label, self.model_name.lower()].options

9
django/db/migrations/optimizer.py
View File

@@ -300,7 +300,8 @@ class MigrationOptimizer(object):
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,
@@ -310,7 +311,8 @@ 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(
@@ -321,7 +323,8 @@ 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,

8
django/db/migrations/questioner.py
View File

@@ -163,11 +163,15 @@ class InteractiveMigrationQuestioner(MigrationQuestioner):
def ask_rename(self, model_name, old_name, new_name, field_instance):
"Was this field really renamed?"
return self._boolean_input("Did you rename %s.%s to %s.%s (a %s)? [y/N]" % (model_name, old_name, model_name, new_name, field_instance.__class__.__name__), False)
msg = "Did you rename %s.%s to %s.%s (a %s)? [y/N]"
return self._boolean_input(msg % (model_name, old_name, model_name, new_name,
field_instance.__class__.__name__), False)
def ask_rename_model(self, old_model_state, new_model_state):
"Was this model really renamed?"
return self._boolean_input("Did you rename the %s.%s model to %s? [y/N]" % (old_model_state.app_label, old_model_state.name, new_model_state.name), False)
msg = "Did you rename the %s.%s model to %s? [y/N]"
return self._boolean_input(msg % (old_model_state.app_label, old_model_state.name,
new_model_state.name), False)
def ask_merge(self, app_label):
return self._boolean_input(

19
django/db/migrations/state.py
View File

@@ -68,7 +68,12 @@ class ProjectState(object):
except InvalidBasesError:
new_unrendered_models.append(model)
if len(new_unrendered_models) == len(unrendered_models):
raise InvalidBasesError("Cannot resolve bases for %r\nThis can happen if you are inheriting models from an app with migrations (e.g. contrib.auth)\n in an app with no migrations; see https://docs.djangoproject.com/en/1.7/topics/migrations/#dependencies for more" % new_unrendered_models)
raise InvalidBasesError(
"Cannot resolve bases for %r\nThis can happen if you are inheriting models from an "
"app with migrations (e.g. contrib.auth)\n in an app with no migrations; see "
"https://docs.djangoproject.com/en/1.7/topics/migrations/#dependencies "
"for more" % new_unrendered_models
)
unrendered_models = new_unrendered_models
# make sure apps has no dangling references
if self.apps._pending_lookups:
@@ -78,16 +83,15 @@ class ProjectState(object):
try:
model = self.apps.get_model(lookup_model[0], lookup_model[1])
except LookupError:
if "%s.%s" % (lookup_model[0], lookup_model[1]) == settings.AUTH_USER_MODEL and ignore_swappable:
app_label = "%s.%s" % (lookup_model[0], lookup_model[1])
if app_label == settings.AUTH_USER_MODEL and ignore_swappable:
continue
# Raise an error with a best-effort helpful message
# (only for the first issue). Error message should look like:
# "ValueError: Lookup failed for model referenced by
# field migrations.Book.author: migrations.Author"
raise ValueError("Lookup failed for model referenced by field {field}: {model[0]}.{model[1]}".format(
field=operations[0][1],
model=lookup_model,
))
msg = "Lookup failed for model referenced by field {field}: {model[0]}.{model[1]}"
raise ValueError(msg.format(field=operations[0][1], model=lookup_model))
else:
do_pending_lookups(model)
try:
@@ -326,7 +330,8 @@ class ModelState(object):
(self.app_label == other.app_label) and
(self.name == other.name) and
(len(self.fields) == len(other.fields)) and
all((k1 == k2 and (f1.deconstruct()[1:] == f2.deconstruct()[1:])) for (k1, f1), (k2, f2) in zip(self.fields, other.fields)) and
all((k1 == k2 and (f1.deconstruct()[1:] == f2.deconstruct()[1:]))
for (k1, f1), (k2, f2) in zip(self.fields, other.fields)) and
(self.options == other.options) and
(self.bases == other.bases)
)

16
django/db/migrations/writer.py
View File

@@ -155,10 +155,12 @@ class MigrationWriter(object):
imports.discard("from django.db import models")
items["imports"] = "\n".join(imports) + "\n" if imports else ""
if migration_imports:
items["imports"] += "\n\n# Functions from the following migrations need manual copying.\n# Move them and any dependencies into this file, then update the\n# RunPython operations to refer to the local versions:\n# %s" % (
"\n# ".join(migration_imports)
)
items["imports"] += (
"\n\n# Functions from the following migrations need manual "
"copying.\n# Move them and any dependencies into this file, "
"then update the\n# RunPython operations to refer to the local "
"versions:\n# %s"
) % "\n# ".join(migration_imports)
# If there's a replaces, make a string for it
if self.migration.replaces:
items['replaces_str'] = "\n replaces = %s\n" % self.serialize(self.migration.replaces)[0]
@@ -394,7 +396,11 @@ class MigrationWriter(object):
return "re.compile(%s)" % ', '.join(args), imports
# Uh oh.
else:
raise ValueError("Cannot serialize: %r\nThere are some values Django cannot serialize into migration files.\nFor more, see https://docs.djangoproject.com/en/dev/topics/migrations/#migration-serializing" % value)
raise ValueError(
"Cannot serialize: %r\nThere are some values Django cannot serialize into "
"migration files.\nFor more, see https://docs.djangoproject.com/en/dev/"
"topics/migrations/#migration-serializing" % value
)
MIGRATION_TEMPLATE = """\