> #Create a chapter, have it automatically set the position
You may amend the model's save() method to do that for you:
def save(self):
# Fiddle with the positon field
self.position = <whatever suits you>
# And now the actual save operation
super(Item, self).save()
> move_higher Moves an item up one position
> move_lower Moves an item down one position
> move_to_bottom Moves an item to the bottom of the list
> move_to_top Moves an item to the top of the list
For them, you'd need to have an operation that changes the
position of this chapter an probably of all the other chapters.
You could create them as methods of the model and then manually
call them:
def move_higher():
# find previous chapter
# swap position of previous and this chapter
def move_lower():
# find next chapter
# swap position of next and this chapter
def move_to_bottom():
# find last chapter
# position = lastchapter.position+1
def move_to_top():
# find first chapter
# if first.position>0:
# position = first.position-1
# else:
# tediously renumber most if not not all chapters
> remove_from_list Removes an item from the list
chapter.delete()
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