create, read, update and delete methods works

.gitignore

@@ -0,0 +1 @@
+.idea/

exceldb.py

@@ -4,51 +4,76 @@ from openpyxl import Workbook, load_workbook
 
 class ExcelDB:
 
-    def __init__(self, path, password=None, offset_row=0, offset_column=0):
+    def __init__(self, path, password=None):
         self._path = path
         self._pass = password
-        self._offset_row = offset_row
-        self._offset_column = offset_column
 
     def init(self):
         pass
 
-    def save(self, model):
+    def create(self, model):
-        wb = load_workbook(self._path)
+        wb, ws = self.get_worksheet(model)
-        ws = wb[model.Meta.table]
+        if model.row is None:
-        ws["A1"] = model.username
+            next_row = len(tuple(ws.rows)) + 1
+        else:
+            next_row = model.row
+        for e in self._get_params(model):
+            c = ws.cell(next_row, type(model).__dict__.get(e).column+model.offset_cols)
+            c.value = model.__dict__.get(e)
+            model.row = next_row
         wb.save(self._path)
 
-    def create(self, model):
+    def _get_element(self, search_for, elements):
-        wb = load_workbook(self._path)
+        for e in elements:
-        ws = wb[model.Meta.table]
+            if e.value == search_for:
-        next_row = len(tuple(ws.rows)) + 1
+                return e
-        next_column = 1 + self._offset_column
+        return None
+
+    def _get_params(self, model):
+        params = list()
         for e in model.__dict__:
-            if e in ['__module__', 'Meta', '__doc__']:
+            if e in ['offset_rows', 'offset_cols', '_row', '_init', 'Meta', ] or e.startswith('__'):
                 continue
-            c = ws.cell(next_row, next_column)
+            else:
-            c.value = model.__dict__.get(e)
+                params.append(e)
-            next_column = next_column + 1
+        return params
-        wb.save(self._path)
 
     def read(self, model):
+        wb, ws = self.get_worksheet(model)
+        entries = list()
+        model_params = self._get_params(model)
+        for row in ws.rows:
+            if row[0].row <= (model.offset_rows + 1):
+                continue
+            params = dict()
+            for p in model_params:
+                params[p] = row[model.__dict__.get(p).column-1].value
+            entries.append(model(**params))
+        return entries
+
+    def update(self, model):
+        self.create(model)
+
+    def delete(self, model):
+        wb, ws = self.get_worksheet(model)
+        ws.delete_rows(model.row)
+        wb.save(self._path)
+
+    def get_worksheet(self, model):
         wb = load_workbook(self._path)
         ws = wb[model.Meta.table]
+        return wb, ws
 
-
+    def create_tables(self, models):
-    def create_tables(self, tables):
         wb = Workbook()
         wb.remove_sheet(wb.active)
-        for t in tables:
+        for model in models:
-            wb.create_sheet(t.Meta.table)
+            wb.create_sheet(model.Meta.table)
-            ws = wb[t.Meta.table]
+            ws = wb[model.Meta.table]
             i = 1
-            for e in t.__dict__:
+            for e in self._get_params(model):
-                if e in ['__init__', '__module__', 'Meta', '__doc__']:
-                    continue
                 c = ws.cell(1, i)
-                c.value = t.__dict__.get(e).caption
+                c.value = model.__dict__.get(e).caption
                 i = i + 1
         wb.save(self._path)
 

main.py

@@ -6,5 +6,15 @@ edb = ExcelDB("./testdata/data.xlsx")
 # edb.create_tables([TestModel, Test1Model])
 
 TestModel.Meta.database = edb
-test1 = TestModel(username='Cool Hacker', datum='2023-11-12')
+# test1 = TestModel(username='Cool Hacker', datum='2023-11-12', test="Alex")
-test1.create()
+# test1.create()
+#test1.delete()
+# test1.username = "Very cool Hacker"
+
+
+Test1Model.Meta.database = edb
+Test1Model(username="Natusik", nickname='Barabusik', creater='Alex').create()
+
+for t1 in edb.read(Test1Model):
+    print(t1.username, t1.creater)
+

model.py

@@ -13,6 +13,16 @@ class BaseModel:
         self._init(type(self), **params)
 
     _column = None
+    offset_rows = 0
+    offset_cols = 0
+
+    @property
+    def row(self):
+        return self._row
+
+    @row.setter
+    def row(self, idx):
+        self._row = idx
 
     @classmethod
     def get_column(cls):
@@ -26,12 +36,15 @@ class BaseModel:
     def get_by_id(cls, id):
         return "GET " + str(id)
 
-    def save(self):
-        self.Meta.database.save(self)
-
     def create(self):
         self.Meta.database.create(self)
 
+    def update(self):
+        self.Meta.database.update(self)
+
+    def delete(self):
+        self.Meta.database.delete(self)
+
     class Meta:
         database = None
 

models.py

@@ -16,11 +16,12 @@ class TestModel(BaseModel):
 
 
 class Test1Model(BaseModel):
-    username = Field('NoName', 1)
+    offset_rows = 9
-    nickname = Field("anoter name", 2)
+    username = Field('NoName', 5)
-    datum = Field('datum', 3)
+    nickname = Field("anoter name", 6)
-    creater = Field('creater', 4)
+    datum = Field('datum', 7)
-    test = Field('test', 5)
+    creater = Field('creater', 8)
+    test = Field('test', 9)
 
     class Meta:
         table = 'NoNames'