django-models

问题 I am using ProjectState to migrate to a new attributes of a table. I am trying to understand the ModelState and ProjectState using of migrations API in Django 3.0.3. I am unable to migrate to the new state which has new fields. Can someone help me with the ProjectState and ModelState usage of what to apply for new model_definition migration to work? The following code does not migrate to DB but doesnt give any error. I want to migrate from a DB table state to another state and there are some

问题 I am using ProjectState to migrate to a new attributes of a table. I am trying to understand the ModelState and ProjectState using of migrations API in Django 3.0.3. I am unable to migrate to the new state which has new fields. Can someone help me with the ProjectState and ModelState usage of what to apply for new model_definition migration to work? The following code does not migrate to DB but doesnt give any error. I want to migrate from a DB table state to another state and there are some

问题 How to set default charfield in lowercase? This is my model: class User(models.Model): username = models.CharField(max_length=100, unique=True) password = models.CharField(max_length=64) name = models.CharField(max_length=200) phone = models.CharField(max_length=20) email = models.CharField(max_length=200) def __init__(self, *args, **kwargs): self.username = self.username.lower() I tried the __init__ but it doesn't work. I want to make the username in lowercase every time new record saved.

问题 I'm building vocabulary and have following models: class Word(Model): name = CharField(max_length=75) class EnNoun(Model): word = OneToOneField(Word) class FrNoun(Model): word = ForeignKey(Word) gender = CharField() Same word can be in both EnNoun and FrNoun . Is it possible to fetch result for given word for both EnNoun and FrNoun , using the least number of queries (there will be more similar classes for language and part of speech, like ItAdverb )? How to store translation from one lang to

来源： https://stackoverflow.com/questions/64520274/show-related-data-inside-foreign-key-object-in-django-admin

来源： https://stackoverflow.com/questions/64520274/show-related-data-inside-foreign-key-object-in-django-admin

来源： https://stackoverflow.com/questions/53402437/formatting-datetimefield-in-django

来源： https://stackoverflow.com/questions/53402437/formatting-datetimefield-in-django

来源： https://stackoverflow.com/questions/53402437/formatting-datetimefield-in-django

来源： https://stackoverflow.com/questions/64551404/how-to-send-request-using-a-field-in-djangorestframework-ui