1.started removal of CDNs.\n 2. Improved modular structure for all parts of project including database.

business_objects/store/image.py

@@ -0,0 +1,117 @@
+"""
+Project:    PARTS Website
+Author:     Edward Middleton-Smith
+            Precision And Research Technology Systems Limited
+
+Technology: Business Objects
+Feature:    Product Image Business Object
+
+Description:
+Business object for product image
+"""
+
+# internal
+import lib.argument_validation as av
+from extensions import db
+# external
+from enum import Enum
+
+
+class Resolution_Level_Enum(Enum):
+    THUMBNAIL = 0
+    LOW = 1
+    HIGH = 2
+    FULL = 3
+
+    def text(self):
+        return Resolution_Level_Enum.Resolution_Level_Enum_Text(self)
+    
+    def Resolution_Level_Enum_Text(category):
+        av.val_instance(category, 'category', 'Resolution_Level_Enum_Text', Resolution_Level_Enum)
+        if category == Resolution_Level_Enum.THUMBNAIL:
+            return 'Thumbnail'
+        elif category == Resolution_Level_Enum.LOW:
+            return 'Low resolution'
+        elif category == Resolution_Level_Enum.HIGH:
+            return 'High resolution'
+        elif category == Resolution_Level_Enum.FULL:
+            return 'Full resolution'
+        else:
+            return 'Unknown'
+    
+    def get_member_by_text(text):
+        for member in Resolution_Level_Enum.__members__.values():
+            if member.name == text:
+                return member
+        return Resolution_Level_Enum.HIGH
+
+
+class Image(db.Model):
+    id_image = db.Column(db.Integer, primary_key=True)
+    id_product = db.Column(db.Integer)
+    id_permutation = db.Column(db.Integer)
+    id_category = db.Column(db.Integer)
+    url = db.Column(db.String(255))
+    active = db.Column(db.Boolean)
+    display_order = db.Column(db.Integer)
+    """
+    def __new__(cls, id, id_product, id_category, url, display_order):
+        _m = 'Image.__new__'
+        v_arg_type = 'class attribute'
+        av.val_int(id, 'id', _m, 0, v_arg_type=v_arg_type)
+        av.val_int(id_product, 'id_product', _m, 0, v_arg_type=v_arg_type)
+        av.val_int(id_category, 'id_category', _m, 0, v_arg_type=v_arg_type)
+        av.val_str(url, 'url', _m, max_len=254, v_arg_type=v_arg_type)
+        av.val_int(display_order, 'display_order', _m, v_arg_type=v_arg_type)
+        return super(Image, cls).__new__(cls)
+    
+    def __init__(self, id, id_product, id_category, url, display_order):
+        self.id_image = id
+        self.id_product = id_product
+        self.id_category = id_category
+        self.url = url
+        self.display_order = display_order
+        super().__init__()
+"""
+    def from_DB_product(query_row):
+        _m = 'Image.from_DB_product'
+        # print(f'image: {query_row}')
+        image = Image()
+        image.id_image = query_row[0]
+        image.id_product = query_row[1]
+        image.id_permutation = query_row[2]
+        image.id_category = query_row[3]
+        image.url = query_row[4]
+        image.active = query_row[5]
+        image.display_order = query_row[6]
+        return image
+    def __repr__(self):
+        return f'''
+            id: {self.id_image}
+            id_product: {self.id_product}
+            id_category: {self.id_category}
+            url: {self.url}
+            display_order: {self.display_order}
+            '''
+
+
+class Product_Image_Filters():
+    product_id: int
+    get_thumbnail: bool
+    get_remaining_LQ: bool
+
+    def __new__(cls, product_id, get_thumbnail, get_remaining_LQ):
+        # Initialiser - validation
+        _m = 'Product_Filters.__new__'
+        v_arg_type = 'class attribute'
+        av.val_int(product_id, 'product_id', _m, v_arg_type=v_arg_type)
+        av.val_bool(get_thumbnail, 'get_thumbnail', _m, v_arg_type=v_arg_type)
+        av.val_bool(get_remaining_LQ, 'get_remaining_LQ', _m, v_arg_type=v_arg_type)
+        return super(Product, cls).__new__(cls)
+    
+    def __init__(self, product_id, get_thumbnail, get_remaining_LQ):
+        # Constructor
+        self.product_id = product_id
+        self.get_thumbnail = get_thumbnail
+        self.get_remaining_LQ = get_remaining_LQ
+