Hello all, I have the following models (among others):
class Project(models.Model):
client = models.ForeignKey(User)
notes = models.TextField()
service = models.CharField(max_length=25)
# more fields
class Circuit(models.Model):
pointA = models.CharField(max_length=20)
pointB = models.CharField(max_length=20)
# more fields
class Union(models.Model):
project = models.ForeignKey(Project)
circuit = models.ForeignKey(Circuit)
tdm = models.ForeignKey(Voip)
type = models.CharField(max_length=5)
# more fields
class Attachment(models.Model):
project = models.ForeignKey(Project)
docfile = models.FileField(...)
# more fields
One project can have several circuits (this is a service, as well as for
example Voip), and one circuit can belong to several projects, so it's a
M-N relationship.
In my view, I need to show the ModelForm of Project and Form of Attachment
(easy for now) and depending on the value of the field 'service', load the
next form into an iframe (it's an idea). For example, if they choose
Circuit, load ModelForm of Circuit, if is voip is chosen load ModelForm of
Voip, etc.
My doubt and issue here is how to accomplish this, because I would need to
save both items first (Project and Circuit) and then create a new entry in
Union model with the corresponding IDs and I don't know how can I retrieve
the IDs in this case.
It would be like:
1. Save Circuit (store the id somewhere)
2. Save Project (store the id somewhere)
3. New entry in Union (circuit_id, project_id)
Maybe I'm overthinking this, but I do not see a clear solution
Thank you very much in advance for the help
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