push 0.5 & create 0.6(update)

0.6_test/tables/cath_table.py

@@ -0,0 +1,45 @@
+# Таблица с категориями и действия с ними
+
+from dbtable import *
+
+class CathTable(DbTable):
+    def table_name(self):
+        return self.dbconn.prefix + "cath"
+
+    def columns(self):
+        return {"id": ["serial", "PRIMARY KEY"],
+                "cath_name": ["varchar(32)", "NOT NULL"]}
+
+    def table_constraints(self):
+        return ['CONSTRAINT "Name" UNIQUE (cath_name)']
+    
+    def delete(self, val):
+        # sql = "DELETE FROM " + self.table_name()
+        # sql += " WHERE cath_name"
+        # sql += "=" + "'" + "".join(val) + "';"
+        param_sql = "DELETE FROM cath WHERE cath_name = %s;"
+        cur = self.dbconn.conn.cursor()
+        value = "".join(val)
+        cur.execute(param_sql, (value,))
+        self.dbconn.conn.commit()
+    
+    def find_by_name(self, name):
+        cur = self.dbconn.conn.cursor()
+        param_query = "SELECT id FROM cath WHERE cath_name = %s;"
+        # sql_sel = "SELECT id FROM " + self.table_name()
+        # sql_sel += " WHERE cath_name = " + "'" + name + "'" + ";"
+        cur.execute(param_query, (name,))           
+        ret = cur.fetchone()
+        return  list(ret)[0] 
+        # sql = "SELECT * FROM " + self.table_name()
+        # sql += " ORDER BY "
+        # sql += ", ".join(self.primary_key())
+        # sql += " LIMIT 1 OFFSET %(offset)s"
+        # cur.execute(sql, {"offset": num - 1})
+        # print(cur)    
+    
+    def example_insert(self):
+        self.insert_one(["Завтрак"])
+        self.insert_one(["Обед"])
+        self.insert_one(["Ужин"])
+        return