def find_one(cls, **kwargs):
query = '''
SELECT
*
FROM
cards
WHERE
[condition];
'''
log(f'kwargs: {kwargs}')
cond, args = cls.format_kwargs(kwargs)
sql = query.replace('[condition]', cond)
log(f'args: {args}')
return query_db(sql, args, one=True)
def find_one(cls, **kwargs):
log('find one by kwargs.')
query = '''
SELECT
*
FROM
cards
WHERE
[condition];
'''
log(f'kwargs: {kwargs}')
cond = cls.format_kwargs(kwargs)
sql = query.replace('[condition]', cond)
args = cls.filter_form(kwargs)
log(f'args: {args}')
return query_db(text(sql), args, one=True)
def find_by(cls, **kwargs):
query = '''
SELECT
*
FROM
cards
WHERE
[condition]
ORDER BY id DESC
'''
# for k, v in kwargs.items():
# if k in cls.__fields__:
# 'SELECT * FROM cards WHERE [contdition]' ->
# 'SELECT * FROM cards WHERE type=? and created=?'
cond, args = cls.format_kwargs(kwargs)
sql = query.replace('[condition]', cond)
return query_db(sql, args, one=False)
def card_id_in_plan(self, card_id):
"""从 today_plan 中, 找到 id是 card_id 的 card."""
# debug(f'self.today_plan: {self.today_plan[0].keys()}')
select_sql = '''
SELECT
card_id
FROM
plans
WHERE
known=0 and card_id=?
LIMIT 1
'''
r = query_db(select_sql, (card_id, ), one=True)
log(f'查询结果: {r.keys()}')
if 'card_id' in r.keys():
log(f"{r['card_id']}, {card_id}")
return int(card_id) == r['card_id']
else:
return False
def find_all(cls):
"""
数据查询
"""
name = cls.__name__
# TODO 过滤掉被删除的元素
# kwargs['deleted'] = False
# 构建 query 语句
query = '''
SELECT
*
FROM
cards
ORDER BY id DESC
'''
cs = query_db(query)
if cs is None:
cs = []
l_ = [c for c in cs]
return l_
def find_id_by(cls, **kwargs):
query = '''
SELECT
id
FROM
cards
WHERE
[condition]
'''
# for k, v in kwargs.items():
# if k in cls.__fields__:
# 'SELECT id FROM cards WHERE [contdition]' ->
# 'SELECT id FROM cards WHERE type=? and created=?'
cond, args = cls.format_kwargs(kwargs)
sql = query.replace('[condition]', cond)
_r = query_db(sql, args, one=False)
if _r:
_r = list(_r)
_r = list(map(lambda i: i['id'], _r))
return _r
def get_random_id(self):
""" 查询数据库语句 - plan 中随机找一个 card_id 返回."""
query = '''
SELECT
card_id
FROM
plans
WHERE
known = 0
ORDER BY RANDOM()
LIMIT 1
'''
r = query_db(query, one=True)
# log(f'r: {r.keys()}')
# r 可能值, 今天没有单词需要复习: None; 有的话,
# 能找到, 是 <sqlite3.Row>.
if r:
if 'card_id' in r.keys():
return r['card_id']
else:
return None
else:
return None