Switch to postgresql, and adapted existing queries

pyproject.toml

@@ -7,4 +7,4 @@ use_parentheses = true
 # NOTE: the known_third_party setting is managed by
 # seed-isort-config and should not be modified directly.
 # Any changes made to this setting will be overwritten.
-known_third_party = ["bs4", "django", "interface", "requests"]
+known_third_party = ["bs4", "django", "interface", "psycopg2", "requests"]

src/backend/lib/storage.py

@@ -1,8 +1,8 @@
 #!/usr/bin/python
 import sqlite3
-import sys
 
-# sys.path.insert(1, '../')
+import psycopg2
+
 from .config import Config
 
 # db_pointer = Config().catalogue_db
@@ -11,22 +11,23 @@ from .config import Config
 class Storage:
     """Contains all methods for system storage"""
 
-    def __init__(self, db_pointer):
-        # Optionaly pass db_file to specify another db or for testing
-        if db_pointer is None:
-            db_pointer = Config().catalogue_db
-        self.db_file = db_pointer
+    def __init__(self, db_pointer, config):
+        # self.db_file = db_pointer
+        self.sql = config.catalogue_db
+        self.user = config.user
+        self.password = config.password
         self.database()
         # self.create_tables()
 
     def database(self):
         """Create database cursor"""
         try:
-            self.db = sqlite3.connect(self.db_file)
+            # self.db = sqlite3.connect(self.db_file)
+            self.db = psycopg2.connect(database=self.sql, user=self.user)
             self.cursor = self.db.cursor()
             return True
         except Exception as e:
-            print(self.db_file)
+            print(self.sql)
             print(e)
             return False
 
@@ -38,7 +39,7 @@ class Storage:
         file_name text)"""
         try:
             self.cursor.execute(q_check)
-        except sqlite3.OperationalError as e:
+        except Exception as e:
             self.cursor.execute(q_create)
 
     def insert_book(self, book):
@@ -46,8 +47,10 @@ class Storage:
         Insert book in database
         :returns: True if succeeds False if not
         """
-        q_x = """SELECT title FROM books WHERE EXISTS(SELECT * from books WHERE `title` = ?)"""
-        q = """INSERT INTO books (title, author, cover, progress, file_name, pages) values (?, ?, ?, 0, ?, 0)"""
+        q_x = (
+            "SELECT title FROM books WHERE EXISTS(SELECT * from books WHERE title = %s)"
+        )
+        q = "INSERT INTO books (title, author, cover, progress, file_name, pages) values (%s, %s, %s, 0, %s, 0)"
         try:
             try:
                 cover_image = book[2].data