feat: update edit

frontend/admin/src/pages/PostEditPage.vue

@@ -33,6 +33,7 @@ const post = reactive({
     selectedMedia: [],
     medias: [],
     status: 0,
+    head_images: [], // Add head images array
 });
 
 // Status options
@@ -46,9 +47,12 @@ const errors = reactive({
     title: '',
     introduction: '',
     selectedMedia: '',
-    discount: ''
+    discount: '',
+    head_images: '', // Add head images validation
 });
 
+const headImageUrls = ref([]); // Store preview URLs
+
 // Media selection dialog state
 const mediaDialogVisible = ref(false);
 const selectedMediaItems = ref([]);
@@ -68,6 +72,9 @@ const mediaTotalPages = computed(() => {
 // Sample media data - in a real app, this would come from an API
 const mediaItems = ref([]);
 
+// Add media selection target
+const mediaSelectionTarget = ref('content'); // 'content' or 'headImages'
+
 // Fetch post data by ID
 const fetchPost = async (id) => {
     loading.value = true;
@@ -88,6 +95,8 @@ const fetchPost = async (id) => {
         post.status = postData.status;
         post.selectedMedia = postData.medias || [];
         post.medias = postData.medias?.map(media => media.id) || [];
+        post.head_images = postData.head_images || []; // Add head images
+        loadHeadImagePreviews(); // Load head image previews
     } catch (error) {
         toast.add({ severity: 'error', summary: '错误', detail: '加载文章失败', life: 3000 });
         router.push('/posts');
@@ -97,10 +106,13 @@ const fetchPost = async (id) => {
 };
 
 // Open media selection dialog
-const openMediaDialog = () => {
+const openMediaDialog = (target = 'content') => {
+    mediaSelectionTarget.value = target;
     mediaDialogVisible.value = true;
     mediaCurrentPage.value = 1;
     mediaFirst.value = 0;
+    // Set selected items based on target
+    selectedMediaItems.value = target === 'headImages' ? [...post.head_images] : [...post.selectedMedia];
     loadMediaItems();
 };
 
@@ -124,8 +136,18 @@ const loadMediaItems = async () => {
 // Confirm media selection
 const confirmMediaSelection = () => {
     if (selectedMediaItems.value.length) {
-        post.selectedMedia = [...selectedMediaItems.value];
+        if (mediaSelectionTarget.value === 'headImages') {
-        errors.selectedMedia = '';
+            if (selectedMediaItems.value.length > 3) {
+                toast.add({ severity: 'warn', summary: '提示', detail: '展示图片最多选择3张', life: 3000 });
+                return;
+            }
+            post.head_images = [...selectedMediaItems.value];
+            errors.head_images = '';
+            loadHeadImagePreviews();
+        } else {
+            post.selectedMedia = [...selectedMediaItems.value];
+            errors.selectedMedia = '';
+        }
     }
     mediaDialogVisible.value = false;
 };
@@ -143,6 +165,28 @@ const removeMedia = (media) => {
     }
 };
 
+// Remove a selected head image
+const removeHeadImage = (media) => {
+    const index = post.head_images.findIndex(item => item.id === media.id);
+    if (index > -1) {
+        post.head_images.splice(index, 1);
+        loadHeadImagePreviews();
+    }
+};
+
+// Load head image previews
+const loadHeadImagePreviews = async () => {
+    headImageUrls.value = [];
+    for (const media of post.head_images) {
+        try {
+            const url = await mediaService.getMediaPreviewUrl(media.id);
+            headImageUrls.value.push({ id: media.id, url });
+        } catch (error) {
+            console.error('Failed to load preview for media:', media.id);
+        }
+    }
+};
+
 // Save the post
 const savePost = async () => {
     // Reset errors
@@ -171,6 +215,11 @@ const savePost = async () => {
         valid = false;
     }
 
+    if (post.head_images.length === 0) {
+        errors.head_images = '请选择至少一张展示图片';
+        valid = false;
+    }
+
     if (!valid) {
         toast.add({ severity: 'error', summary: '表单错误', detail: '请检查表单中的错误并修正', life: 3000 });
         return;
@@ -178,6 +227,7 @@ const savePost = async () => {
 
     try {
         post.medias = post.selectedMedia.map(media => media.id);
+        post.head_image_ids = post.head_images.map(media => media.id); // Add head image IDs
         const resp = await postService.updatePost(post.id, post);
 
         if (resp.status !== 200) {
@@ -272,6 +322,41 @@ onMounted(() => {
 
         <div v-else>
             <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
+                <!-- Add Head Images Selection before Title -->
+                <div class="col-span-2">
+                    <label class="block text-sm font-medium text-gray-700 mb-1">
+                        展示图片 <span class="text-gray-500 text-xs">(最多3张)</span>
+                    </label>
+                    <div class="p-4 border border-gray-200 rounded-md">
+                        <div v-if="post.head_images.length === 0"
+                            class="flex justify-center items-center flex-col space-y-3 py-6">
+                            <i class="pi pi-image text-gray-400 text-5xl!"></i>
+                            <p class="text-gray-500">请选择展示图片</p>
+                            <Button label="选择图片" icon="pi pi-plus" @click="openMediaDialog('headImages')" outlined />
+                            <small v-if="errors.head_images" class="text-red-500">{{ errors.head_images }}</small>
+                        </div>
+                        <div v-else>
+                            <div class="mb-4 flex justify-between items-center">
+                                <Button label="更换图片" icon="pi pi-plus" @click="openMediaDialog('headImages')"
+                                    :disabled="post.head_images.length >= 3" outlined />
+                                <span class="text-sm text-gray-500">
+                                    {{ post.head_images.length }}/3
+                                </span>
+                            </div>
+                            <div class="grid grid-cols-2 md:grid-cols-3 gap-4">
+                                <div v-for="(media, index) in post.head_images" :key="media.id"
+                                    class="relative aspect-video">
+                                    <img v-if="headImageUrls[index]" :src="headImageUrls[index].url"
+                                        class="w-full h-full object-cover rounded bg-gray-200" :alt="media.name">
+                                    <Button icon="pi pi-times"
+                                        class="absolute! top-2 right-2 p-button-rounded p-button-danger p-button-sm"
+                                        @click="removeHeadImage(media)" />
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
                 <!-- Title -->
                 <div class="col-span-2">
                     <label for="title" class="block text-sm font-medium text-gray-700 mb-1">标题</label>