def itemDelete(redirect_category_id, item_id=None):
"""Handles two possibilities:
1) User clicks delete while on screen to create new item - reload
to category list page.
2) User clicks delete while modifying an item - remove item from
table and reload to parent category's page.
"""
if item_id is None:
# User escaped from new item process
return redirect('/')
else:
item = Item.by_id(item_id)
if item:
session.delete(item)
session.commit()
return redirect('/category/' + redirect_category_id)
def itemValuesIfPresent(item_id=None):
"""Returns values from item table, if item_id exists; else empty strings
Arg:
item_id: if present, used to filter result.
Returns:
item_name: value from Item table or empty string
category_id: value from Item table or empty string
item_description: value from Item table or empty string
"""
item_name = ""
category_id = ""
item_description = ""
if item_id:
item = Item.by_id(item_id)
if item:
item_name = item.item_name
category_id = item.category_id
item_description = item.item_description
return item_name, category_id, item_description
