本文整理汇总了Python中django.db.migrations.operations.AddIndex方法的典型用法代码示例。如果您正苦于以下问题：Python operations.AddIndex方法的具体用法？Python operations.AddIndex怎么用？Python operations.AddIndex使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类django.db.migrations.operations的用法示例。
在下文中一共展示了operations.AddIndex方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: create_altered_indexes
# 需要导入模块: from django.db.migrations import operations [as 别名]
# 或者: from django.db.migrations.operations import AddIndex [as 别名]
def create_altered_indexes(self):
option_name = operations.AddIndex.option_name
for app_label, model_name in sorted(self.kept_model_keys):
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]
old_indexes = old_model_state.options[option_name]
new_indexes = new_model_state.options[option_name]
add_idx = [idx for idx in new_indexes if idx not in old_indexes]
rem_idx = [idx for idx in old_indexes if idx not in new_indexes]
self.altered_indexes.update({
(app_label, model_name): {
'added_indexes': add_idx, 'removed_indexes': rem_idx,
}
}) 示例2: generate_added_indexes
# 需要导入模块: from django.db.migrations import operations [as 别名]
# 或者: from django.db.migrations.operations import AddIndex [as 别名]
def generate_added_indexes(self):
for (app_label, model_name), alt_indexes in self.altered_indexes.items():
for index in alt_indexes['added_indexes']:
self.add_operation(
app_label,
operations.AddIndex(
model_name=model_name,
index=index,
)
)