From 90dd896f131294880fb32f8c6649da70f94f997f Mon Sep 17 00:00:00 2001
From: littlewolf <nickptic@code-artel.com>
Date: Fri, 4 Oct 2019 00:14:16 +0300
Subject: [PATCH] Load app models Load legacy models

---
 apps/transfer/utils.py | 35 +++++++++++++++++++++++++++++------
 1 file changed, 29 insertions(+), 6 deletions(-)

diff --git a/apps/transfer/utils.py b/apps/transfer/utils.py
index 708b0151..700d3e3e 100644
--- a/apps/transfer/utils.py
+++ b/apps/transfer/utils.py
@@ -2,6 +2,7 @@ from os.path import exists
 from importlib.machinery import SourceFileLoader
 from django.apps import apps
 from collections import OrderedDict
+import transfer.models as legacy_models
 
 
 def transfer_objects(data_type):
@@ -15,7 +16,7 @@ def transfer_objects(data_type):
 
             for model, card in card_module.card.items():
                 if "data_type" in card and data_type == card["data_type"]:
-                    card['name'] = model
+                    card['app_label'] = app.label
                     models_list[model] = card
 
     if len(models_list) < 1:
@@ -24,14 +25,37 @@ def transfer_objects(data_type):
 
     models_list = sort_by_dependencies(models_list)
 
-    print(f"==========================\r\n{models_list}\r\n==========================\r\n")
-
     for model, card in models_list.items():
-        print(model)
-        print(card)
+        transfer_model(model, card)
+
+
+def transfer_model(model, card):
+    print(f"=================================================\r\n"
+          f"MODEL: {model}\r\n"
+          f"=================================================")
+    try:
+        app_model = apps.get_model(app_label=card['app_label'], model_name=model)
+    except LookupError as e:
+        print(f"ERROR: model {model} from {card['app_label']} can not be loaded: {e}")
+        return
+
+    for legacy_table, fields in card['fields'].items():
+        try:
+            legacy_model = apps.get_model(app_label="transfer", model_name=legacy_table)
+        except LookupError as e:
+            print(f"ERROR: legacy model {model} can not be loaded: {e}")
+            return
+
+        print(app_model)
+
+        print(legacy_model)
+
+        print(fields)
 
 
 def sort_by_dependencies(data):
+    """Сортировка моделей по зависимостям"""
+
     """Сначала мы сортируем модели по зависимостям в обратном порядке, используя сортировку вставкой"""
     result = []
     for model, card in data.items():
@@ -45,7 +69,6 @@ def sort_by_dependencies(data):
             result.append(model)
 
     """Затем мы создаём сортированный словарь из реверса получившегося результата"""
-    print(result)
 
     result = OrderedDict(
         [(model, data[model]) for model in reversed(result)]