mirror of
https://github.com/ada-dmitry/lab6.git
synced 2026-09-24 09:20:15 +00:00
30 lines
903 B
Python
30 lines
903 B
Python
# Таблица с блюдами и действия с ними
|
|
|
|
from dbtable import *
|
|
|
|
class DishTable(DbTable):
|
|
def table_name(self):
|
|
return self.dbconn.prefix + "dish"
|
|
|
|
def columns(self):
|
|
return {"id": ["serial", "PRIMARY KEY"],
|
|
"cath_id": ["integer", "REFERENCES cath(id)", "NOT NULL"],
|
|
"dish_name": ["varchar(32)", "NOT NULL"],
|
|
"cook_time": ["interval"],
|
|
"manual": ["text"]}
|
|
|
|
def table_constraints(self):
|
|
return ['CONSTRAINT "Name Dish" UNIQUE (dish_name)']
|
|
|
|
|
|
|
|
def find_by_position(self, num):
|
|
sql = "SELECT * FROM " + self.table_name()
|
|
sql += " ORDER BY "
|
|
sql += ", ".join(self.primary_key())
|
|
sql += " LIMIT 1 OFFSET %(offset)s"
|
|
cur = self.dbconn.conn.cursor()
|
|
cur.execute(sql, {"offset": num - 1})
|
|
return cur.fetchone()
|
|
|