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62 lines
2.7 KiB
Python
62 lines
2.7 KiB
Python
# Таблица Телефоны и особые действия с ней.
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from dbtable import *
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class RacersTable(DbTable):
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def table_name(self):
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return self.dbconn.prefix + '"Racers"'
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def columns(self):
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return {"racer_id": ["serial", "PRIMARY KEY"],
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"surname": ["varchar(64)", "NOT NULL"],
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"name": ["varchar(64)", "NOT NULL"],
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"birthday": ["date", "NOT NULL", "CHECK (extract(year from age(current_date, birthday)) < 60)"],
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"country_id": ["integer", "NOT NULL", 'REFERENCES public."Сountries"(country_id) ON DELETE CASCADE'],
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"wins": ["integer", "NOT NULL", "DEFAULT 0"]}
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def table_constraints(self):
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return ["UNIQUE (surname, name, birthday)"]
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def primary_key(self):
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return ["racer_id"]
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def column_names_without_id(self):
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res = sorted(self.columns().keys(), key = lambda x: x)
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res.remove('racer_id')
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return res
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def all_by_country_id(self, cid):
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sql = f"SELECT * FROM {self.table_name()} WHERE country_id = " + "%s ORDER BY surname, name, birthday"
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cur = self.dbconn.conn.cursor()
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cur.execute(sql, (cid,))
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return cur.fetchall()
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def delete_by_cid(self, cid):
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sql = f"DELETE FROM {self.table_name()} WHERE country_id = " +"%s"
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cur = self.dbconn.conn.cursor()
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cur.execute(sql, (cid,))
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self.dbconn.conn.commit()
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return
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def find_by_position(self, cid, num):
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sql = f"SELECT * FROM {self.table_name()} WHERE "+ "country_id = %(cid)s ORDER BY surname, name, birthday LIMIT 1 OFFSET %(offset)s"
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cur = self.dbconn.conn.cursor()
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cur.execute(sql, {"cid": cid, "offset": num - 1})
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return cur.fetchone()
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def delete_by_rid(self, rid):
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sql = f"DELETE FROM {self.table_name()} WHERE racer_id = " +"%s"
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cur = self.dbconn.conn.cursor()
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cur.execute(sql, (rid,))
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self.dbconn.conn.commit()
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return
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def checkbirthday(self, val):
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sql = "SELECT extract(year from age(current_date, %s)) >= 60"
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cur = self.dbconn.conn.cursor()
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cur.execute(sql, (val,))
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return cur.fetchone()
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def select_by_s_n_b(self, vals):
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sql = f"SELECT racer_id FROM {self.table_name()} WHERE name = " + "%s AND surname = %s AND birthday = %s"
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cur = self.dbconn.conn.cursor()
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cur.execute(sql, vals)
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return cur.fetchone()
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def insertbydef(self, vals):
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sql = f"INSERT INTO {self.table_name()}(birthday, country_id, name, surname) VALUES "+"(%s,%s,%s,%s)"
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cur = self.dbconn.conn.cursor()
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print(vals)
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cur.execute(sql, vals)
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self.dbconn.conn.commit()
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return |