I am creating a mindmap visio-like editor website using d3js and a bunch of
custom javascript. Rather than the schema/stencils being populated by
static JSON files, I wanted to create an administration area to edit the
schema without requiring JSON kung-fu skills and serve the dynamically
generated JSON to my javascript app on the fly.
I have 2 models that I am trying to figure out the best way to create a
relationship between.
class EditorVocab(models.Model):
VOCAB_TYPES = (
('string', 'String'),
('textarea', 'Text Box'),
('list', 'List of values'),
('list-identifier', 'Open Vocabulary/Dictionary'),
('object_ref', 'Object Reference'),
)
vocab_name = models.CharField(max_length=255, unique=False,
blank=False, null=False)
label = models.CharField(max_length=255, unique=False, blank=False,
null=False)
help_text = models.CharField(max_length=255, unique=False, blank=True,
null=True)
default_value = JSONField(default={}, blank=True, db_index=True)
vocab_type = models.CharField(max_length=255, choices=VOCAB_TYPES,
unique=False, blank=False, null=False)
class Meta:
managed = True
db_table = 'editor_vocabularies'
def __str__(self):
return '%s (%s)' % (self.label, self.vocab_type)
class EditorStencil(models.Model):
stencil_type = models.CharField(max_length=32, unique=True)
stencil_name = models.CharField(max_length=128, unique=False)
stencil_icon = models.FileField(upload_to='stencils')
schema = models.ForeignKey(EditorSchema, on_delete=models.CASCADE)
vocab = models.ManyToManyField(EditorVocab, related_name="vocabs")
vocab_requirement = models.ManyToManyField(EditorVocab,
related_name="required_vocabs", blank=True)
class Meta:
managed = True
db_table = 'editor_stencil'
def __str__(self):
return '%s (%s)' % (self.stencil_name, self.stencil_name)
I am using Postgres with the jsoneditor integrated into the Django Admin
area and it works well. What I would like to have is a One-to-Many
relationship from EditorStencils -> EditorVocab and be able to
select/edit/add which "vocabs" are apart of a stencil as well as required.
This works with ManyToManyFields but a vocab needs to belong to a stencil.
The way it is now, it could potentially belong to multiple stencils (which
I do not want).
Thanks in advance!
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