@ -45,50 +45,39 @@ Finally, users can create a `subject` when in edit mode. After clicking on *'Mo
## Architecture
## Architecture
Graduator is based on the MVVM (Model-View-ViewModel) architectural pattern. The below UML class diagram details the structure of the models, viewmodels, and views for `UnitsManager`, `Unit`, and `Subject`.
Graduator is based on the MVVM (Model-View-ViewModel) architectural pattern. The below UML class diagram details
the structure of the models, viewmodels, and views for `UnitsManager`, `Unit`, and `Subject`. Notice how,
to circumvent [this issue](https://codefirst.iut.uca.fr/documentation/mchSamples_Apple/docusaurus/iOS_MVVM_guide/docs/viewModels/changeNotifications/problematic/),
we insert an entire hierarchy of VMs in certain views, so that they can update all those VMs when a detail gets edited. It's dirty, and it's staying that way for the foreseeable future.
```mermaid
```mermaid
classDiagram
classDiagram
class Unit {
+name: String
+weight: Int
+isProfessional: Bool
+code: Int
+subjects: [Subject]
+getAverage(): Double?
+data: Data
+update(from: Data): Void
}
class MainView
class UnitView
class SubjectViewCell
class UnitsManagerVM {
-original: UnitsManager
+model: UnitsManager.Data
+isEdited: Bool
+isAllEditable: Bool
+updateUnit(unitVM: UnitVM): Void
+TotalAverage: Double?
+ProfessionalAverage: Double?
}
class UnitVM {
class UnitVM {
-original: Unit
-original: Unit
+model: Unit.Data
+model: Unit.Data
+isEdited: Bool
+isEdited: Bool
+SubjectsVM: [SubjectVM]
+onEditing()
+onEditing(): Void
+onEdited(isCancelled: Bool)
+onEdited(isCancelled: Bool): Void
+updateSubject(subjectVM: SubjectVM)
+updateSubject(subjectVM: SubjectVM): Void
+updateAllSubjects()
+updateAllSubjects(): Void
+deleteSubject(subjectVM: SubjectVM)
+deleteSubject(subjectVM: SubjectVM): Void
+addSubject(subject: Subject)
+addSubject(subject: Subject): Void
+Average: Double?
+Average: Double?
}
}
class UnitView {
-unitVM: UnitVM
-unitsManagerVM: UnitsManagerVM
+delete(at: IndexSet): Void
}
class Subject {
+name: String
+weight: Int
+grade: Double?
+gradeIsValid(grade: Double?): Bool
+data: Data
+update(from: Data): Void
}
class SubjectVM {
class SubjectVM {
-original: Subject
-original: Subject
+model: Subject.Data
+model: Subject.Data
@ -97,50 +86,51 @@ classDiagram
+onEdited(isCancelled: Bool): Void
+onEdited(isCancelled: Bool): Void
}
}
class SubjectViewCell {
-subjectVM: SubjectVM
-unitVM: UnitVM
-unitsManagerVM: UnitsManagerVM
-isGradeEditable: Bool
}
class UnitsManager {
class UnitsManager {
+units: [Unit]
+getTotalAverage(): Double?
+getTotalAverage(): Double?
+getProfessionalAverage(): Double?
+getProfessionalAverage(): Double?
+getAverage(units: [Unit]): Double?
+getAverage(units: Unit[]): Double?
+data: Data
+data: Data
+update(from: Data): Void
+update(from: Data): Void
}
}
class Unit {
class UnitsManagerVM {
+name: String
-original: UnitsManager
+weight: Int
+model: UnitsManager.Data
+isProfessional: Bool
+isEdited: Bool
+code: Int
+isAllEditable: Bool
+subjects: Subject[]
+UnitsVM: [UnitVM]
+getAverage(): Double?
+updateUnit(unitVM: UnitVM): Void
+data: Data
+TotalAverage: Double?
+update(from: Data): Void
+ProfessionalAverage: Double?
}
}
class Subject {
class MainView {
+name: String
-unitsManagerVM: UnitsManagerVM
+weight: Int
+grade: Double?
+gradeIsValid(grade: Double?): Bool
+data: Data
+update(from: Data): Void
}
}
UnitVM -- Unit : Uses
MainView --> UnitsManagerVM
UnitView -- UnitVM : Observes
UnitView --> UnitVM
SubjectVM -- Subject : Uses
UnitView --> UnitsManagerVM
SubjectViewCell -- SubjectVM : Observes
SubjectViewCell --> SubjectVM
UnitVM "1" o-- "*" SubjectVM : Contains
SubjectViewCell --> UnitVM
UnitsManagerVM -- UnitsManager : Uses
SubjectViewCell --> UnitsManagerVM
UnitsManagerVM "1" o-- "*" UnitVM : Contains
MainView -- UnitsManagerVM : Observes
UnitsManagerVM --> "*" UnitVM
UnitsManagerVM --> UnitsManager
UnitVM --> "*" SubjectVM
UnitVM --> Unit
SubjectVM --> Subject
```
```
It might be useful to note that, just like `UnitVM`s aggregate `SubjectVM`s, `Unit`s aggregate `Subject`s, but these relationship between `Model` entities were removed from the diagram above for clarity.
It might be useful to note that, just like `UnitVM`s aggregate `SubjectVM`s, `Unit`s aggregate
`Subject`s, but these relationship between `Model` entities were removed from the diagram above for clarity.
The same is true with the View-related classes.
Here is the diagram with those relationships depicted.
Here is the diagram with those relationships depicted.
@ -149,93 +139,81 @@ Here is the diagram with those relationships depicted.
