Create sqlite3 connector class to handle all the errors and quirks for us

private/lib/sqlitedb.py

@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+import sqlite3
+from sys import stderr as STDERR
+
+
+# create dictionary out of sqlite results
+def dict_factory(cursor, row):
+    d = {}
+    for idx, col in enumerate(cursor.description):
+        d[col[0]] = row[idx]
+    return d
+
+
+class SQLitedb:
+    db = ""
+    cursor = None
+    connection = None
+    lastrow = None
+
+    def __init__(self, dbpath: str):
+        db = dbpath
+        try:
+            self.connection = sqlite3.connect(db)
+            self.cursor = self.connection.cursor()
+        except sqlite3.Error as e:
+            print("Connection error: %s" % e, file=STDERR)
+
+        self.cursor.row_factory = dict_factory # every result will be a dict now
+
+    def __del__(self):
+        try:
+            self.connection.close()
+        except sqlite3.Error as e:
+            print("Couldn't gracefully close db: %s" % e, file=STDERR)
+
+    def query(self, qq: str):
+        try:
+            self.cursor.execute(qq)
+            self.lastrow = self.cursor.fetchall()
+        except sqlite3.Error as e:
+            print("Couldn't execute query %s, exception: %s" % (qq, e), file=STDERR)
+            self.lastrow = []
+        return self.lastrow
+
+    # sometimes we need the cursor for safety reasons, for example does sqlite3 all the security related
+    # escaoing in supplied strings for us, when we deliver it to con.execute in the second argument as a tuple
+    def getCursor(self):
+        return self.cursor
+
+    # we could try to utilise that ourselfs in a function. Be c a r e f u l, these values in the tuple MUST HAVE
+    # THE RIGHT TYPE
+    def safequery(self, qq: str, deliver: tuple):
+        try:
+            self.cursor.execute(qq, deliver)
+            self.lastrow = self.cursor.fetchall()
+        except sqlite3.Error as e:
+            print("Couldn't execute query %s, exception: %s" % (qq, e), file=STDERR)
+            self.lastrow = []
+        except TypeError as e:
+            print("Types in given tuple doesnt match to execute query \"%s\": %s" % (qq, e), file=STDERR)
+            self.lastrow = []
+        return self.lastrow
+
+
+if __name__ == "__main__":
+    try:
+        SQLitedb("bla.db")
+        print("hi")
+        exit(0)
+    except KeyboardInterrupt:
+        pass