assign trainers to trainings

main.go

@@ -322,7 +322,22 @@ func trainingListHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	err = tmpl.ExecuteTemplate(w, "training_list.html", trainings)
+	trainers, err := fetchTrainers()
+	if err != nil {
+		log.Printf("Error fetching trainers: %v", err)
+		http.Error(w, "Database error", http.StatusInternalServerError)
+		return
+	}
+
+	data := struct {
+		Trainings []Training
+		Trainers  []Trainer
+	}{
+		Trainings: trainings,
+		Trainers:  trainers,
+	}
+
+	err = tmpl.ExecuteTemplate(w, "training_list.html", data)
 	if err != nil {
 		log.Printf("Error in templating page training_list.html: %v", err)
 		http.Error(w, fmt.Sprintf("Error in templating page %v", err), http.StatusInternalServerError)
@@ -608,11 +623,39 @@ func addTrainingHandler(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func assignTrainerHandler(w http.ResponseWriter, r *http.Request) {
+	log.Println("Handling trainer assignment to training")
+	if r.Method != http.MethodPost {
+		http.Error(w, "Invalid request method", http.StatusMethodNotAllowed)
+		return
+	}
+
+	trainingID := r.FormValue("training_id")
+	trainerID := r.FormValue("trainer_id")
+
+	if trainingID == "" || trainerID == "" {
+		log.Println("Missing training ID or trainer ID")
+		http.Error(w, "Training ID and Trainer ID are required", http.StatusBadRequest)
+		return
+	}
+
+	_, err := db.Exec("INSERT OR IGNORE INTO training_trainers (training_id, trainer_id) VALUES (?, ?)", trainingID, trainerID)
+	if err != nil {
+		log.Printf("Error assigning trainer to training: %v", err)
+		http.Error(w, "Database error", http.StatusInternalServerError)
+		return
+	}
+
+	log.Println("Trainer assigned to training successfully")
+	http.Redirect(w, r, "/trainings", http.StatusSeeOther)
+}
+
 func initServerHandlers() {
 	http.Handle("/", redirectIfNoAdmin(http.HandlerFunc(homeHandler)))
 
 	http.Handle("/trainings", redirectIfNoAdmin(http.HandlerFunc(trainingListHandler)))
 	http.Handle("/trainings/add", redirectIfNoAdmin(http.HandlerFunc(addTrainingHandler)))
+	http.Handle("/trainings/assign_trainer", redirectIfNoAdmin(http.HandlerFunc(assignTrainerHandler)))
 
 	http.Handle("/trainers", redirectIfNoAdmin(http.HandlerFunc(trainerListHandler)))
 	http.Handle("/trainers/add", redirectIfNoAdmin(http.HandlerFunc(addTrainerHandler)))

templates/training_list.html

@@ -12,10 +12,11 @@
             <th>End</th>
             <th>Status</th>
             <th>Trainers</th>
+            <th>Actions</th>
         </tr>
     </thead>
     <tbody>
-        {{range .}}
+        {{range .Trainings}}
         <tr>
             <td>{{.Title}}</td>
             <td>{{.TrainingType}}</td>
@@ -32,10 +33,59 @@
                     No trainers assigned
                 {{end}}
             </td>
+            <td>
+                <button onclick="openAssignTrainerModal({{.ID}})">Assign Trainer</button>
+            </td>
         </tr>
         {{end}}
     </tbody>
 </table>
 
+<!-- Assign Trainer Modal -->
+<div id="assignTrainerModal" style="display:none; position:fixed; top:50%; left:50%; transform:translate(-50%, -50%); background:white; padding:20px; border:1px solid black;">
+    <h3>Assign Trainer</h3>
+    <form id="assignTrainerForm" >
+        <input type="hidden" id="training_id" name="training_id">
+        <label for="trainer">Select Trainer:</label>
+        <select id="trainer_id" name="trainer_id">
+            {{range .Trainers}}
+            <option value="{{.ID}}">{{.Name}} ({{.Email}})</option>
+            {{end}}
+        </select>
+        <button type="submit">Assign</button>
+        <button type="button" onclick="closeAssignTrainerModal()">Cancel</button>
+    </form>
+</div>
+
+<script>
+    function openAssignTrainerModal(trainingId) {
+        document.getElementById('training_id').value = trainingId;
+        document.getElementById('assignTrainerModal').style.display = 'block';
+    }
+
+    function closeAssignTrainerModal() {
+        document.getElementById('assignTrainerModal').style.display = 'none';
+    }
+
+    document.getElementById('assignTrainerForm').addEventListener('submit', function(event) {
+        event.preventDefault();
+
+        const formData = new FormData(this); // Create FormData from the form element
+        console.log(formData);
+
+        fetch('/trainings/assign_trainer', {
+            method: 'POST',
+            body: formData // Send as form data
+        }).then(response => {
+            if (response.ok) {
+                location.reload();
+            } else {
+                alert('Failed to assign trainer');
+            }
+        });
+    });
+</script>
+
+
 
 {{template "epilogue.html" }}