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from collections import defaultdict
from sqlalchemy.orm import Session
from sqlalchemy import and_
import girok.server.src.category.exceptions as exceptions
import girok.server.src.category.models as models
import girok.server.src.utils as global_utils
def create_category(db: Session, cat_data):
new_cat = models.TaskCategory(**cat_data)
db.add(new_cat)
db.commit()
db.refresh(new_cat)
return global_utils.sql_obj_to_dict(new_cat)
def delete_category(db: Session, cat_id: int):
cat = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.task_category_id == cat_id
)).first()
db.delete(cat)
db.commit()
return cat
def rename_category(db: Session, cat_id: int, new_name: str):
cat = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.task_category_id == cat_id
)
).first()
setattr(cat, "name", new_name)
db.commit()
def move_category(db: Session, cat_id: int, new_pid: int):
cat = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.task_category_id == cat_id
)
).first()
setattr(cat, "super_task_category_id", new_pid)
db.commit()
def get_category_id_by_name_and_parent_id(db: Session, name: str, parent_id: int):
category = db.query(models.TaskCategory.task_category_id).\
filter(
and_(
models.TaskCategory.name == name,
models.TaskCategory.super_task_category_id == parent_id
)
).first()
if not category:
return None
return category[0]
def get_category_name_by_id(db: Session, cat_id: int):
if cat_id is None:
return "No Category"
cat = db.query(models.TaskCategory.name).\
filter(models.TaskCategory.task_category_id == cat_id).\
first()
return cat[0] if cat else None
def get_subcategories_by_parent_id(db: Session, pid: int):
subcats = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.super_task_category_id == pid)
).all()
return subcats
def get_subcategory_ids_by_parent_id(db: Session, pid: int):
sub_cats = get_subcategories_by_parent_id(db, pid)
sub_cats_id = [sub.task_category_id for sub in sub_cats]
return sub_cats_id
def build_category_tree(db: Session, cat_id):
subs = get_subcategories_by_parent_id(db, cat_id)
if subs is None: # Base case
return {}
res = defaultdict(dict)
for sub in subs:
res[sub.name]['subcategories'] = build_category_tree(db, sub.task_category_id)
res[sub.name]['color'] = sub.color
return res
def is_super_category(db: Session, super: str, sub: str):
sub_cat = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.name == sub,
models.TaskCategory.super_category_name == super
)
).first()
return sub_cat
def get_last_cat_id(db: Session, cats: list):
'''
ex) ['HKU', 'COMP3230', 'Assignment'] -> return id of Assignment
cats: list[str]
Return
parent_id (int): closest parent id
cumul_path (str): cumulative path from first and second to last category, connected by /
'''
parent_id = None
cumul_path = ""
if not cats:
return parent_id, cumul_path
for cat_name in cats:
cat_id = get_category_id_by_name_and_parent_id(db, cat_name, parent_id)
if not cat_id:
raise exceptions.SubcategoryNotExistException(cumul_path, cat_name)
parent_id = cat_id
cumul_path += cat_name + "/"
return parent_id, cumul_path
def check_exist_category(db: Session, cats: list):
parent_id = None
for cat_name in cats:
cat_id = get_category_id_by_name_and_parent_id(db, cat_name, parent_id)
if not cat_id:
return False
parent_id = cat_id
return True
def get_category_color_by_id(db: Session, cat_id: int):
cat = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.task_category_id == cat_id
)
).first()
if not cat:
return None
return cat.color
def get_category_full_path_by_id(db: Session, category_id: int):
if category_id is None:
return ""
cat_path = ""
cat = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.task_category_id == category_id
)
).first()
cat_name = cat.name
super_cat_id = cat.super_task_category_id
if super_cat_id is None: # base case
return cat_name + "/"
super_cat_full_path = get_category_full_path_by_id(db, super_cat_id)
cat_path = super_cat_full_path + cat_name + "/"
return cat_path
def get_all_category_colors(db: Session):
colors = db.query(models.TaskCategory.name, models.TaskCategory.color).all()
colors = {c[0]: c[1] for c in colors}
return colors
def get_root_category_id(db: Session, cat_id: int):
cat = db.query(models.TaskCategory).\
filter(
and_(
models.TaskCategory.task_category_id == cat_id
)
).first()
if not cat:
raise exceptions.CategoryNotExistException(str(cat_id))
pid = cat.super_task_category_id
if pid is None:
return cat_id
return get_root_category_id(db, pid)
|
