Message in prerequire antecedent when there are no possible antecedents

src/app/pieces/tasks/annexe-task/annexe-task.component.html

@@ -55,14 +55,18 @@
         <div class="piece-prerequires-prerequires">
             <label class="piece-prerequires-title">Antécédents</label>
             <div class="piece-prerequires-form">
-                <ng-container *ngFor="let inlineTask of role.tasks">
-                    <ng-container *ngFor="let element of inlineTask; let index = index">
-                        <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
-                            <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
-                            <label for="antecedent">{{element?.identifier}}</label>
-                        </div>
+                <div style="text-align: center;" *ngIf="j == 0">La première tâche de la ligne ne peut pas avoir d'antécédent</div>
+                <ng-container *ngIf="hasPossibleAntecedents()">
+                    <ng-container *ngFor="let inlineTask of role.tasks">
+                        <ng-container *ngFor="let element of inlineTask; let index = index">
+                            <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
+                                <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
+                                <label for="antecedent">{{element?.identifier}}</label>
+                            </div>
+                        </ng-container>
                     </ng-container>
                 </ng-container>
+                <div style="text-align: center;" *ngIf="!hasPossibleAntecedents() && j != 0">Veuillez d'abords entrer des identifiants aux tâches précédentes</div>
             </div>
         </div>
         <div class="piece-prerequires-ressources">

src/app/pieces/tasks/annexe-task/annexe-task.component.ts

@@ -33,6 +33,7 @@ export class AnnexeTaskComponent implements OnInit {
   @Input() j!: number;
 
   urlIcon: string = 'url("../../../../assets/background-images/annexe.png")';
+  antecedent: boolean = false;
 
   constructor(protected pieceDetailsService: PieceDetailsService, protected tooltipService: TooltipService, public dialog: MatDialog) { }
 
@@ -287,4 +288,16 @@ export class AnnexeTaskComponent implements OnInit {
     let i: number = this.task.prerequireRessources.findIndex(element => ressource == element.ressource);
     return this.task.prerequireRessources[i];
   }
+
+  hasPossibleAntecedents(): boolean {
+    let res = false;
+    this.role.tasks.forEach(inlineTask => {
+      for(let i = 0; i < this.j; i++) {
+        if (inlineTask[i]?.identifier && (this.task.identifier != inlineTask[i]?.identifier)) {
+          res = true;
+        }
+      }
+    });
+    return res;
+  }
 }

src/app/pieces/tasks/final-task/final-task.component.html

@@ -83,14 +83,18 @@
         <div class="piece-prerequires-prerequires">
             <label class="piece-prerequires-title">Antécédents</label>
             <div class="piece-prerequires-form">
-                <ng-container *ngFor="let inlineTask of role.tasks">
-                    <ng-container *ngFor="let element of inlineTask; let index = index">
-                        <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
-                            <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
-                            <label for="antecedent">{{element?.identifier}}</label>
-                        </div>
+                <div style="text-align: center;" *ngIf="j == 0">La première tâche de la ligne ne peut pas avoir d'antécédent</div>
+                <ng-container *ngIf="hasPossibleAntecedents()">
+                    <ng-container *ngFor="let inlineTask of role.tasks">
+                        <ng-container *ngFor="let element of inlineTask; let index = index">
+                            <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
+                                <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
+                                <label for="antecedent">{{element?.identifier}}</label>
+                            </div>
+                        </ng-container>
                     </ng-container>
                 </ng-container>
+                <div style="text-align: center;" *ngIf="!hasPossibleAntecedents() && j != 0">Veuillez d'abords entrer des identifiants aux tâches précédentes</div>
             </div>
         </div>
         <div class="piece-prerequires-ressources">

src/app/pieces/tasks/final-task/final-task.component.ts

@@ -33,6 +33,7 @@ export class FinalTaskComponent implements OnInit {
   @Input() j!: number;
 
   urlIcon: string = 'url("../../../../assets/background-images/final.png")';
+  antecedent: boolean = false;
 
   constructor(protected pieceDetailsService: PieceDetailsService, protected tooltipService: TooltipService, public dialog: MatDialog) { }
 
@@ -289,4 +290,16 @@ export class FinalTaskComponent implements OnInit {
     let i: number = this.task.prerequireRessources.findIndex(element => ressource == element.ressource);
     return this.task.prerequireRessources[i];
   }
+  
+  hasPossibleAntecedents(): boolean {
+    let res = false;
+    this.role.tasks.forEach(inlineTask => {
+      for(let i = 0; i < this.j; i++) {
+        if (inlineTask[i]?.identifier && (this.task.identifier != inlineTask[i]?.identifier)) {
+          res = true;
+        }
+      }
+    });
+    return res;
+  }
 }

src/app/pieces/tasks/optionnal-task/optionnal-task.component.html

@@ -84,14 +84,18 @@
         <div class="piece-prerequires-prerequires">
             <label class="piece-prerequires-title">Antécédents</label>
             <div class="piece-prerequires-form">
-                <ng-container *ngFor="let inlineTask of role.tasks">
-                    <ng-container *ngFor="let element of inlineTask; let index = index">
-                        <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
-                            <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
-                            <label for="antecedent">{{element?.identifier}}</label>
-                        </div>
+                <div style="text-align: center;" *ngIf="j == 0">La première tâche de la ligne ne peut pas avoir d'antécédent</div>
+                <ng-container *ngIf="hasPossibleAntecedents()">
+                    <ng-container *ngFor="let inlineTask of role.tasks">
+                        <ng-container *ngFor="let element of inlineTask; let index = index">
+                            <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
+                                <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
+                                <label for="antecedent">{{element?.identifier}}</label>
+                            </div>
+                        </ng-container>
                     </ng-container>
                 </ng-container>
+                <div style="text-align: center;" *ngIf="!hasPossibleAntecedents() && j != 0">Veuillez d'abords entrer des identifiants aux tâches précédentes</div>
             </div>
         </div>
         <div class="piece-prerequires-ressources">

src/app/pieces/tasks/optionnal-task/optionnal-task.component.ts

@@ -33,6 +33,7 @@ export class OptionnalTaskComponent implements OnInit {
   @Input() j!: number;
 
   urlIcon: string = 'url("../../../../assets/background-images/optionnal.png")';
+  antecedent: boolean = false;
 
   constructor(protected pieceDetailsService: PieceDetailsService, protected tooltipService: TooltipService, public dialog: MatDialog) { }
 
@@ -306,4 +307,16 @@ export class OptionnalTaskComponent implements OnInit {
     let i: number = this.task.prerequireRessources.findIndex(element => ressource == element.ressource);
     return this.task.prerequireRessources[i];
   }
+
+  hasPossibleAntecedents(): boolean {
+    let res = false;
+    this.role.tasks.forEach(inlineTask => {
+      for(let i = 0; i < this.j; i++) {
+        if (inlineTask[i]?.identifier && (this.task.identifier != inlineTask[i]?.identifier)) {
+          res = true;
+        }
+      }
+    });
+    return res;
+  }
 }

src/app/pieces/tasks/random-event/random-event.component.html

@@ -72,14 +72,18 @@
         <div class="piece-prerequires-prerequires">
             <label class="piece-prerequires-title">Antécédents</label>
             <div class="piece-prerequires-form">
-                <ng-container *ngFor="let inlineTask of role.tasks">
-                    <ng-container *ngFor="let element of inlineTask; let index = index">
-                        <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
-                            <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
-                            <label for="antecedent">{{element?.identifier}}</label>
-                        </div>
+                <div style="text-align: center;" *ngIf="j == 0">La première tâche de la ligne ne peut pas avoir d'antécédent</div>
+                <ng-container *ngIf="hasPossibleAntecedents()">
+                    <ng-container *ngFor="let inlineTask of role.tasks">
+                        <ng-container *ngFor="let element of inlineTask; let index = index">
+                            <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
+                                <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
+                                <label for="antecedent">{{element?.identifier}}</label>
+                            </div>
+                        </ng-container>
                     </ng-container>
                 </ng-container>
+                <div style="text-align: center;" *ngIf="!hasPossibleAntecedents() && j != 0">Veuillez d'abords entrer des identifiants aux tâches précédentes</div>
             </div>
         </div>
         <div class="piece-prerequires-ressources">

src/app/pieces/tasks/random-event/random-event.component.ts

@@ -33,6 +33,7 @@ export class RandomEventComponent implements OnInit {
   @Input() j!: number;
 
   urlIcon: string = 'url("../../../../assets/background-images/event.png")';
+  antecedent: boolean = false;
 
   constructor(protected pieceDetailsService: PieceDetailsService, protected tooltipService: TooltipService, public dialog: MatDialog) { }
 
@@ -284,4 +285,16 @@ export class RandomEventComponent implements OnInit {
     let i: number = this.task.prerequireRessources.findIndex(element => ressource == element.ressource);
     return this.task.prerequireRessources[i];
   }
+
+  hasPossibleAntecedents(): boolean {
+    let res = false;
+    this.role.tasks.forEach(inlineTask => {
+      for(let i = 0; i < this.j; i++) {
+        if (inlineTask[i]?.identifier && (this.task.identifier != inlineTask[i]?.identifier)) {
+          res = true;
+        }
+      }
+    });
+    return res;
+  }
 }

src/app/pieces/tasks/task/task.component.html

@@ -82,14 +82,18 @@
         <div class="piece-prerequires-prerequires">
             <label class="piece-prerequires-title">Antécédents</label>
             <div class="piece-prerequires-form">
-                <ng-container *ngFor="let inlineTask of role.tasks">
-                    <ng-container *ngFor="let element of inlineTask; let index = index">
-                        <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
-                            <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
-                            <label for="antecedent">{{element?.identifier}}</label>
-                        </div>
+                <div style="text-align: center;" *ngIf="j == 0">La première tâche de la ligne ne peut pas avoir d'antécédent</div>
+                <ng-container *ngIf="hasPossibleAntecedents()">
+                    <ng-container *ngFor="let inlineTask of role.tasks">
+                        <ng-container *ngFor="let element of inlineTask; let index = index">
+                            <div class="piece-prerequires-prerequires-element" *ngIf="element?.identifier && (task.identifier != element?.identifier) && index < j">
+                                <input name="antecedent" type="checkbox" [checked]="isCheckedTask(element)" (change)="checkboxChangedTask($event, element)"/>
+                                <label for="antecedent">{{element?.identifier}}</label>
+                            </div>
+                        </ng-container>
                     </ng-container>
                 </ng-container>
+                <div style="text-align: center;" *ngIf="!hasPossibleAntecedents() && j != 0">Veuillez d'abords entrer des identifiants aux tâches précédentes</div>
             </div>
         </div>
         <div class="piece-prerequires-ressources">

src/app/pieces/tasks/task/task.component.ts

@@ -33,6 +33,7 @@ export class TaskComponent implements OnInit {
   @Input() j!: number;
 
   urlIcon: string = 'url("../../../../assets/background-images/tache.png")';
+  antecedent: boolean = false;
 
   constructor(protected pieceDetailsService: PieceDetailsService, protected tooltipService: TooltipService, public dialog: MatDialog) { }
 
@@ -317,4 +318,16 @@ export class TaskComponent implements OnInit {
     let i: number = this.task.prerequireRessources.findIndex(element => ressource == element.ressource);
     return this.task.prerequireRessources[i];
   }
+
+  hasPossibleAntecedents(): boolean {
+    let res = false;
+    this.role.tasks.forEach(inlineTask => {
+      for(let i = 0; i < this.j; i++) {
+        if (inlineTask[i]?.identifier && (this.task.identifier != inlineTask[i]?.identifier)) {
+          res = true;
+        }
+      }
+    });
+    return res;
+  }
 }
\ No newline at end of file