New form to change grade

ui/src/lib/components/WorkGrades.svelte

@@ -1,6 +1,7 @@
 <script>
  import { createEventDispatcher } from 'svelte';
  import ScoreBadge from '$lib/components/ScoreBadge.svelte';
+ import { ToastsStore } from '$lib/stores/toasts';
 
  const dispatch = createEventDispatcher();
 
@@ -9,6 +10,8 @@
  let gradationStatus = {};
  let stats = {"mean": 0, "min": 999, "max": 0};
 
+ let chgrade = {grade: null, modal: null};
+
  $: refresh_grades(work);
 
  function refresh_grades(w) {
@@ -136,6 +139,13 @@
                                         </button>
                                     {/await}
                                 {/if}
+                                <button
+                                    class="btn btn-sm btn-primary mr-1"
+                                    title="Changer la note"
+                                    on:click={() => { chgrade = { grade, modal: new bootstrap.Modal(document.getElementById('chgradeModal'))}; chgrade.modal.show(); }}
+                                >
+                                    <i class="bi bi-pencil"></i>
+                                </button>
                                 <button
                                     class="btn btn-sm btn-danger mr-1"
                                     title="Supprimer la note"
@@ -151,3 +161,28 @@
         </table>
     {/await}
 </div>
+
+<div class="modal fade" tabindex="-1" id="chgradeModal">
+    <div class="modal-dialog">
+        <form class="modal-content" on:submit|preventDefault={() => {chgrade.modal.hide(); try { chgrade.grade.save().then(() => refresh_grades(work)); } catch(err) { ToastsStore.addToast({color: "danger", title: "Impossible de changer la note", msg: err}) };}}>
+            <div class="modal-header">
+                <h5 class="modal-title">Changer la note {#if chgrade.grade}de {chgrade.grade.login}{/if}</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <div class="modal-body">
+                <div class="form-group row mb-2">
+                    <label class="col-2 col-form-label" for="new-grade">Note</label>
+                    <!-- svelte-ignore a11y-autofocus -->
+                    {#if chgrade.grade}
+                        <input type="number" class="form-control col" id="new-grade" autofocus placeholder="15" bind:value={chgrade.grade.score}>
+                    {/if}
+                </div>
+            </div>
+            <div class="modal-footer">
+                <button type="submit" class="btn btn-primary">
+                    Changer la note
+                </button>
+            </div>
+        </form>
+    </div>
+</div>

ui/src/lib/grades.js

@@ -15,6 +15,21 @@ export class Grade {
     this.comment = comment;
   }
 
+  async save() {
+    const res = await fetch(`api/works/${this.id_work}/grades/${this.id}`, {
+      method: 'PUT',
+      headers: {'Accept': 'application/json'},
+      body: JSON.stringify(this),
+    });
+    if (res.status == 200) {
+      const data = await res.json()
+      this.update(data);
+      return data;
+    } else {
+      throw new Error((await res.json()).errmsg);
+    }
+  }
+
   async delete() {
     if (this.id) {
       const res = await fetch(`api/works/${this.id_work}/grades/${this.id}`, {

works.go

@@ -251,6 +251,26 @@ func declareAPIAdminWorksRoutes(router *gin.RouterGroup) {
 
 	gradesRoutes := worksRoutes.Group("/grades/:gid")
 	gradesRoutes.Use(gradeHandler)
+	gradesRoutes.PUT("", func(c *gin.Context) {
+		current := c.MustGet("grade").(*WorkGrade)
+
+		var new WorkGrade
+		if err := c.ShouldBindJSON(&new); err != nil {
+			c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"errmsg": err.Error()})
+			return
+		}
+
+		new.Id = current.Id
+
+		grade, err := new.Update()
+		if err != nil {
+			log.Println("Unable to Update grade:", err)
+			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": "An error occurs during grade update."})
+			return
+		}
+
+		c.JSON(http.StatusOK, grade)
+	})
 	gradesRoutes.DELETE("", func(c *gin.Context) {
 		g := c.MustGet("grade").(*WorkGrade)
 
@@ -654,6 +674,14 @@ type WorkGrade struct {
 	Comment string    `json:"comment,omitempty"`
 }
 
+func (g *WorkGrade) Update() (*WorkGrade, error) {
+	if _, err := DBExec("UPDATE user_work_grades SET id_user = ?, id_work = ?, date = ?, grade = ?, comment = ? WHERE id_gradation = ?", g.IdUser, g.IdWork, g.Date, g.Grade, g.Comment, g.Id); err != nil {
+		return nil, err
+	} else {
+		return g, err
+	}
+}
+
 func (g WorkGrade) Delete() (int64, error) {
 	if res, err := DBExec("DELETE FROM user_work_grades WHERE id_gradation = ?", g.Id); err != nil {
 		return 0, err