fixed bug #12

src/brovski-adress-etiketten-verwaltung.py

@@ -7,7 +7,6 @@ from tkinter import messagebox
 from tkinter import ttk
 
 from config import Config
-from connector import JSONConnector
 from model import Model
 from windows import SettingsWindow, EditRecord, show_error
 
@@ -37,7 +36,7 @@ class Application:
         self.filter_active = tk.BooleanVar(value=False)
 
         # model connector
-        self.model = Model(JSONConnector())
+        self.model = Model(self.config)
 
         # init paths to json and csv file
         self.json_file_name = "brovski-adress-etiketten-verwaltung.json"
@@ -265,6 +264,7 @@ class Application:
         if reload:
             self.address_list = self.model.get_all()
         if len(self.address_list) == 0:
+            self.delete_all_table_items()
             return
         self.delete_all_table_items()
         for address in self.address_list:
@@ -290,14 +290,14 @@ class Application:
             self.table.delete(item)
 
     def open_window_settings(self):
-        window = SettingsWindow(self, self.root)
+        window = SettingsWindow(self, self.root, self.config)
         window.wm_transient(self.root)
         window.wait_visibility()
         window.grab_set()
         return window
 
     def open_window_edit_records(self, record_id: int):
-        window = EditRecord(self, self.root, record_id)
+        window = EditRecord(self, self.root, record_id, self.config)
         window.wm_transient(self.root)
         window.wait_visibility()
         window.grab_set()

src/config.py

@@ -1,11 +1,11 @@
 import os
-from configparser import ConfigParser
+from configparser import ConfigParser, NoOptionError, NoSectionError, DuplicateSectionError
 
 
 class Config:
     parser: ConfigParser
 
-    def __init__(self):
+    def __init__(self, filename: str = "config.ini"):
         """
         Config parser reading config.ini
 
@@ -19,7 +19,7 @@ class Config:
         full_path = os.path.join(home_path, ".config", "brovski-adress-etiketten" )
         if not os.path.exists(full_path):
             os.makedirs(full_path)
-        self.config_file = os.path.join(full_path, "config.ini")
+        self.config_file = os.path.join(full_path, filename)
 
         self._load()
 
@@ -32,14 +32,25 @@ class Config:
 
     def add_section(self, section):
         self._load()
-        self.parser.add_section(section)
+        try:
+            self.parser.add_section(section)
+        except DuplicateSectionError:
+            return
+
         self._save()
 
     def set(self, section: str, option: str, value: str):
         self._load()
+        self.add_section(section)
         self.parser.set(section, option, value)
         self._save()
 
     def get(self, section: str, option: str):
         self._load()
-        return self.parser.get(section, option)
+        try:
+            option = self.parser.get(section, option)
+        except NoOptionError:
+            option = ""
+        except NoSectionError:
+            option = ""
+        return option

src/connector.py

@@ -3,11 +3,12 @@ import os
 from abc import ABC, abstractmethod
 
 import config
+from config import Config
 
 
 class Connector(ABC):
-    def __init__(self):
+    def __init__(self, config: Config):
-        pass
+        self.config = config
 
     @abstractmethod
     def get_all(self) -> list:
@@ -35,15 +36,17 @@ class Connector(ABC):
 
 
 class JSONConnector(Connector):
-    def __init__(self):
+    def __init__(self, config: Config):
-        super().__init__()
+        super().__init__(config)
-        self.config = config.Config()
         self.json_path = self.config.get("json", "path")
         self.json_file = os.path.join(self.json_path, "brovski-adress-etiketten-verwaltung-v7.json")
 
     def get_all(self) -> list:
-        with open(self.json_file, "r") as f:
+        try:
-            return json.load(f)
+            with open(self.json_file, "r") as f:
+                return json.load(f)
+        except FileNotFoundError:
+            return []
 
     def get_all_sorted_by(self, field: str, reverse=False) -> list:
         with open(self.json_file, "r") as f:

src/model.py

@@ -1,9 +1,11 @@
-from connector import JSONConnector, Connector
+from config import Config
+from connector import JSONConnector
 
 
 class Model:
-    def __init__(self, connector: Connector):
+    def __init__(self, config: Config):
-        self.connector = connector
+        self.connector = JSONConnector(config)
+        self.config = config
 
     def get_all(self):
         return self.connector.get_all()

src/windows.py

@@ -32,11 +32,11 @@ class Window(tk.Toplevel):
 
 
 class EditRecord(Window):
-    def __init__(self, parent, root: tk.Tk, record_id: int):
+    def __init__(self, parent, root: tk.Tk, record_id: int, config: Config):
         super().__init__(parent, root)
         self.bind("<Return>", self._update)
 
-        self.model = JSONConnector()
+        self.model = JSONConnector(config)
 
         record = self.model.get_by_id(record_id)
 
@@ -86,10 +86,10 @@ class EditRecord(Window):
 
 
 class SettingsWindow(Window):
-    def __init__(self, parent, root: tk.Tk):
+    def __init__(self, parent, root: tk.Tk, config: Config):
         super().__init__(parent, root)
         self.geometry(f"500x330+{self.root.winfo_x() + 20}+{self.root.winfo_y() + 20}")
-        self.config = Config()
+        self.config = config
         self.json_file = tk.StringVar()
         self.csv_file = tk.StringVar()