115 lines
4.0 KiB
Python
115 lines
4.0 KiB
Python
from django.utils import timezone
|
|
from django.utils.html import format_html
|
|
|
|
from django.db import models
|
|
from . import managers
|
|
|
|
class Note(models.Model):
|
|
""" Note relative à un sujet.
|
|
|
|
Peut être utilisée comme classe parente.
|
|
class ChildNote(Note):
|
|
def note_date(self): value for 'create_date'
|
|
def note_time(self): value for 'created_time'
|
|
def note_bg_colors(self): ('header bkgd', 'labels bkgd')
|
|
def note_labels(self): list of objects printed as bootstrap labels
|
|
|
|
"""
|
|
|
|
objects = managers.NoteManager()
|
|
|
|
sujet = models.ForeignKey(
|
|
'sujets.Sujet',
|
|
related_name="notes",
|
|
on_delete=models.CASCADE
|
|
)
|
|
text = models.TextField()
|
|
created_by = models.ForeignKey(
|
|
'utilisateurs.Professionnel',
|
|
blank=True,
|
|
null=True
|
|
)
|
|
created_date = models.DateField('Date')
|
|
created_time = models.TimeField('Heure')
|
|
|
|
def save(self, *args, **kwargs):
|
|
if not self.created_date or not self.created_time:
|
|
child_instance = self.cast()
|
|
self.created_date = child_instance.note_date()
|
|
self.created_time = child_instance.note_time()
|
|
if not self.created_by:
|
|
self.created_by = self.cast().note_author()
|
|
return super().save(*args, **kwargs)
|
|
|
|
def __str__(self):
|
|
return "%s" % (self.child_class.__qualname__)
|
|
|
|
def note_author(self):
|
|
return None
|
|
|
|
def note_date(self):
|
|
""" Default 'created_date' value. Child may override this method. """
|
|
return timezone.now().date()
|
|
|
|
def note_time(self):
|
|
""" Default 'created_time' value. Child may override this method. """
|
|
return timezone.now().time()
|
|
|
|
def note_bg_colors(self):
|
|
""" Returns (header background color, labels color).
|
|
Values must be valid bootstrap color name
|
|
"""
|
|
return ("default", "info")
|
|
|
|
def note_labels(self):
|
|
""" Returns list of objects that are printed as bootstrap labels """
|
|
return [self.created_by]
|
|
|
|
def _get_child_class_and_instance(self):
|
|
""" Get child class and instance of Note, stored in _child_instance
|
|
and _child_class.
|
|
Store self and self.__class__ if self is either a child of Note,
|
|
or a Note instance with no child.
|
|
"""
|
|
self._child_instance = self
|
|
self._child_class = self.__class__
|
|
if self._meta.get_parent_list(): # If self is actually child instance
|
|
return
|
|
for f in self._meta.get_fields():
|
|
if f.is_relation and f.one_to_one:
|
|
if hasattr(self, f.name):
|
|
self._child_instance = getattr(self, f.name)
|
|
self._child_class = self._child_instance.__class__
|
|
return
|
|
|
|
@property
|
|
def child_class(self):
|
|
if not hasattr(self, '_child_class'):
|
|
self._get_child_class_and_instance()
|
|
return self._child_class
|
|
|
|
def cast(self):
|
|
if not hasattr(self, '_child_instance'):
|
|
self._get_child_class_and_instance()
|
|
return self._child_instance
|
|
|
|
## Attributes used by 'notes' template tags
|
|
# bg_color : background color of header
|
|
# labels : list of strings to put in labels
|
|
def cached_attr(name):
|
|
""" Cached property set on return value of 'note_ATTR' method on
|
|
child instance.
|
|
"""
|
|
private_name = '_%s' % name
|
|
def getter(self):
|
|
if not hasattr(self, private_name):
|
|
setattr(self,
|
|
private_name,
|
|
# Call *child instance* method
|
|
getattr(self.cast(), 'note_%s' % name)()
|
|
)
|
|
return getattr(self, private_name)
|
|
return getter
|
|
bg_colors = property(cached_attr('bg_colors'), doc="background color of header")
|
|
labels = property(cached_attr('labels'), doc="list of string to display as labels")
|