##Database design
The provided diagram is a Unified Modeling Language (UML) class diagram representing the relationships between various entities in a sample e-commerce application. Let's describe the relationships:
-
Inheritance Relationships:
-
UserBase
inherits fromBaseEntity
:UserBase
class inherits the properties ofBaseEntity
class, which includes properties likeIsDeleted
,CreatedBy
,CreatedDate
,UpdatedBy
, andUpdatedDate
. This allowsUserBase
,Admin
, andCustomer
to have those common properties. -
Admin
inherits fromUserBase
:Admin
class is a specialization ofUserBase
and inherits the propertiesUsername
,PasswordHash
, andEmail
, along with the common properties fromBaseEntity
. -
Customer
inherits fromUserBase
:Customer
class is another specialization ofUserBase
and inherits the propertiesUsername
,PasswordHash
, andEmail
, along with the common properties fromBaseEntity
.
-
-
Association Relationships:
-
Customer
"1" -- "N"Review
: ACustomer
can have multipleReview
s (one-to-many relationship), while aReview
is associated with only oneCustomer
. -
Product
"1" -- "N"Review
: AProduct
can have multipleReview
s (one-to-many relationship), while aReview
is associated with only oneProduct
. -
Product
"1" -- "N"Stock
: AProduct
can have multipleStock
entries (one-to-many relationship), while aStock
entry is associated with only oneProduct
. -
Product
"N" -- "1"Category
: AProduct
belongs to oneCategory
, while aCategory
can have multipleProduct
s (many-to-one relationship). -
CartItem
"1" -- "1"Product
: ACartItem
is associated with oneProduct
, and aProduct
can be associated with only oneCartItem
(one-to-one relationship). -
CartItem
"1" -- "1"Customer
: ACartItem
is associated with oneCustomer
, and aCustomer
can have only oneCartItem
(one-to-one relationship). -
Order
"1" -- "1"Customer
: AnOrder
is associated with oneCustomer
, and aCustomer
can have only oneOrder
(one-to-one relationship). -
Order
"1" -- "N"CartItem
: AnOrder
can have multipleCartItem
s (one-to-many relationship), while aCartItem
is associated with only oneOrder
. -
Order
"1" -- "N"Payment
: AnOrder
can have multiplePayment
s (one-to-many relationship), while aPayment
is associated with only oneOrder
. -
Wishlist
"1" -- "N"Product
: AWishlist
can have multipleProduct
s (one-to-many relationship), while aProduct
is associated with only oneWishlist
. -
Wishlist
"N" -- "1"Customer
: AWishlist
belongs to oneCustomer
, while aCustomer
can have multipleWishlist
s (many-to-one relationship).
-
These relationships help to define how various entities in the application are connected and how they interact with each other.