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```

Browse Source 
feat(admin): 系统通知功能增加图片支持

- 在SystemNotification模型中添加image_urls字段用于存储图片URL列表
- 实现通知图片的上传、保存和展示功能
- 前端模板增加图片预览模态框和图片上传组件
- 优化通知管理页面的UI布局，支持多图展示
- 完善图片相关的前后端交互逻辑和错误处理
```
This commit is contained in:
24024 2026-04-24 23:42:12 +08:00
parent dfcd4fcc56
commit 3610bedb39
6 changed files with 185 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
blueprints/admin.py
View File

@ -1,5 +1,6 @@
from flask import Blueprint, request, jsonify, g
from datetime import timedelta
import json
from extensions import db
from models import User, Role, Permission, SystemDict, SystemNotification, Order, PointsGrant, InviteReward, to_bj_time, get_bj_now
from middlewares.auth import permission_required, login_required
@ -234,6 +235,7 @@ def get_notifications():
"id": n.id,
"title": n.title,
"content": n.content,
"image_urls": json.loads(n.image_urls) if n.image_urls else [],
"is_active": n.is_active,
"created_at": n.created_at_bj.strftime('%Y-%m-%d %H:%M')
} for n in notifs]
@ -244,6 +246,9 @@ def get_notifications():
def save_notification():
data = request.json
notif_id = data.get('id')
image_urls = data.get('image_urls') or []
if not isinstance(image_urls, list):
image_urls = []
if notif_id:
n = SystemNotification.query.get(notif_id)
@ -256,6 +261,7 @@ def save_notification():
n.title = data['title']
n.content = data['content']
n.image_urls = json.dumps(image_urls, ensure_ascii=False)
n.is_active = data.get('is_active', True)
db.session.commit()

24
migrations/versions/b3f4c2d9aa10_add_notification_images.py Normal file
View File

@ -0,0 +1,24 @@
"""add notification images
Revision ID: b3f4c2d9aa10
Revises: 0cc7ce54ecc0
Create Date: 2026-04-24 23:20:00.000000
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = 'b3f4c2d9aa10'
down_revision = '0cc7ce54ecc0'
branch_labels = None
depends_on = None
def upgrade():
op.add_column('system_notifications', sa.Column('image_urls', sa.Text(), nullable=True))
def downgrade():
op.drop_column('system_notifications', 'image_urls')

1
models.py
View File

@ -133,6 +133,7 @@ class SystemNotification(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(200), nullable=False)
content = db.Column(db.Text, nullable=False)
image_urls = db.Column(db.Text) # JSON 字符串，存储公告图片 URL 列表
is_active = db.Column(db.Boolean, default=True)
created_at = db.Column(db.DateTime, default=get_bj_now)

6
services/system_service.py
View File

@ -1,5 +1,6 @@
from models import SystemDict, SystemNotification, db
from flask import jsonify
import json
def get_system_config_data():
"""获取系统配置数据的业务逻辑"""
@ -40,10 +41,15 @@ def get_user_latest_notification(user_id):
.order_by(SystemNotification.created_at.desc()).first()
if latest:
try:
image_urls = json.loads(latest.image_urls) if latest.image_urls else []
except Exception:
image_urls = []
return {
"id": latest.id,
"title": latest.title,
"content": latest.content,
"image_urls": image_urls,
"time": latest.created_at_bj.strftime('%Y-%m-%d %H:%M')
}
return {"id": None}

37
templates/base.html
View File

@ -114,6 +114,7 @@
<div id="notifContent"
class="text-slate-500 text-sm font-bold leading-relaxed whitespace-pre-wrap pt-4">
</div>
<div id="notifImages" class="grid grid-cols-2 gap-4 pt-2"></div>
</div>
<button id="closeNotifBtn"
class="w-full py-4 rounded-2xl bg-slate-900 text-white font-black text-sm hover:bg-slate-800 transition-all shadow-xl shadow-slate-200">
@ -122,6 +123,16 @@
</div>
</div>
<div id="notifImageModal"
class="fixed inset-0 bg-slate-900/80 backdrop-blur-md z-[70] hidden items-center justify-center p-6">
<button id="closeNotifImageBtn"
class="absolute top-6 right-6 w-11 h-11 rounded-full bg-white/10 text-white hover:bg-white/20 transition-all flex items-center justify-center">
<i data-lucide="x" class="w-5 h-5"></i>
</button>
<img id="notifImagePreview" src="" alt="公告图片预览"
class="max-w-[92vw] max-h-[88vh] rounded-3xl shadow-2xl object-contain bg-white">
</div>
<script>
lucide.createIcons();
@ -133,6 +144,21 @@
// 全局通知检查
let currentNotifId = null;
function openNotifImage(url) {
const modal = document.getElementById('notifImageModal');
const preview = document.getElementById('notifImagePreview');
preview.src = url;
modal.classList.remove('hidden');
modal.classList.add('flex');
}
function closeNotifImage() {
const modal = document.getElementById('notifImageModal');
const preview = document.getElementById('notifImagePreview');
modal.classList.remove('flex');
modal.classList.add('hidden');
preview.src = '';
}
async function checkNotifications() {
try {
const r = await fetch('/api/notifications/latest');
@ -142,6 +168,12 @@
document.getElementById('notifTitle').innerText = d.title;
document.getElementById('notifTime').innerText = d.time || '';
document.getElementById('notifContent').innerText = d.content;
document.getElementById('notifImages').innerHTML = (d.image_urls || []).map(url => `
<button type="button" onclick="openNotifImage('${url}')" class="block rounded-2xl overflow-hidden border border-slate-100 bg-slate-50 hover:scale-[1.02] transition-all">
<img src="${url}" class="w-full h-48 object-cover" loading="lazy">
</button>
`).join('');
lucide.createIcons();
const modal = document.getElementById('notifModal');
modal.classList.remove('hidden');
@ -174,6 +206,11 @@
});
};
document.getElementById('closeNotifImageBtn').onclick = closeNotifImage;
document.getElementById('notifImageModal').onclick = (e) => {
if (e.target.id === 'notifImageModal') closeNotifImage();
};
checkNotifications();
function showToast(message, type = 'info') {

130
templates/notifications.html
View File

@ -5,7 +5,6 @@
{% block content %}
<div class="w-full h-full overflow-y-auto p-8 lg:p-12 custom-scrollbar">
<div class="max-w-6xl mx-auto space-y-8">
<!-- 头部 -->
<div class="flex items-center justify-between">
<div class="flex items-center gap-4">
<div class="w-12 h-12 bg-indigo-600 text-white rounded-2xl flex items-center justify-center shadow-lg">
@ -13,7 +12,7 @@
</div>
<div>
<h1 class="text-3xl font-black text-slate-900 tracking-tight">系统通知管理</h1>
<p class="text-slate-400 text-sm font-bold">发布全局公告，通知每一位创作者</p>
<p class="text-slate-400 text-sm font-bold">发布全局公告，支持正文与图片展示</p>
</div>
</div>
<button onclick="openModal()" class="btn-primary px-6 py-3 rounded-xl text-sm font-bold shadow-lg flex items-center gap-2">
@ -22,7 +21,6 @@
</button>
</div>
<!-- 列表 -->
<div class="bg-white rounded-[2.5rem] shadow-xl border border-slate-100 overflow-hidden">
<div class="overflow-x-auto">
<table class="w-full text-left border-collapse">
@ -30,22 +28,20 @@
<tr class="bg-slate-50 border-b border-slate-100 sticky top-0 z-10">
<th class="px-8 py-5 text-[10px] font-black text-slate-400 uppercase tracking-widest bg-slate-50">状态</th>
<th class="px-8 py-5 text-[10px] font-black text-slate-400 uppercase tracking-widest bg-slate-50">标题</th>
<th class="px-8 py-5 text-[10px] font-black text-slate-400 uppercase tracking-widest bg-slate-50">图片</th>
<th class="px-8 py-5 text-[10px] font-black text-slate-400 uppercase tracking-widest bg-slate-50">发布时间</th>
<th class="px-8 py-5 text-[10px] font-black text-slate-400 uppercase tracking-widest bg-slate-50 text-right">操作</th>
</tr>
</thead>
<tbody id="notifTableBody" class="text-sm font-medium">
<!-- 动态加载 -->
</tbody>
<tbody id="notifTableBody" class="text-sm font-medium"></tbody>
</table>
</div>
</div>
</div>
</div>
<!-- 编辑弹窗 -->
<div id="notifModal" class="fixed inset-0 bg-slate-900/40 backdrop-blur-sm z-50 flex items-center justify-center hidden opacity-0 transition-opacity duration-300">
<div class="bg-white w-full max-w-lg rounded-[2.5rem] shadow-2xl p-10 space-y-8 transform scale-95 transition-transform duration-300">
<div class="bg-white w-full max-w-2xl rounded-[2.5rem] shadow-2xl p-10 space-y-8 transform scale-95 transition-transform duration-300 max-h-[90vh] overflow-y-auto">
<h2 id="modalTitle" class="text-2xl font-black text-slate-900">发布通知</h2>
<form id="notifForm" class="space-y-5">
<input type="hidden" id="notifId">
@ -57,6 +53,17 @@
<label class="text-[10px] font-black text-slate-400 uppercase tracking-widest ml-1">详细内容</label>
<textarea id="notifContent" required rows="6" placeholder="支持换行展示..." class="w-full bg-slate-50 border border-slate-100 rounded-2xl p-4 outline-none focus:border-indigo-500 transition-all text-sm font-bold resize-none"></textarea>
</div>
<div class="space-y-3">
<div class="flex items-center justify-between">
<label class="text-[10px] font-black text-slate-400 uppercase tracking-widest ml-1">公告图片</label>
<label class="px-3 py-2 rounded-xl bg-slate-900 text-white text-xs font-bold cursor-pointer hover:bg-slate-800 transition-all">
上传图片
<input id="notifImagesInput" type="file" accept="image/*" multiple class="hidden">
</label>
</div>
<div id="notifImagesPreview" class="grid grid-cols-4 gap-3"></div>
<p class="text-[11px] text-slate-400 font-bold">支持多图展示，图片将上传到 MinIO 后随公告保存。</p>
</div>
<div class="flex items-center gap-2 pt-2">
<input type="checkbox" id="notifActive" checked class="w-4 h-4 rounded border-slate-200 text-indigo-600 focus:ring-indigo-500">
<label for="notifActive" class="text-sm font-bold text-slate-600">立即上线 (激活状态)</label>
@ -72,6 +79,56 @@
{% block scripts %}
<script>
let notifImageUrls = [];
function renderNotifImages() {
const preview = document.getElementById('notifImagesPreview');
if (!preview) return;
if (notifImageUrls.length === 0) {
preview.innerHTML = `
<div class="col-span-4 text-xs text-slate-300 font-bold py-4 text-center border border-dashed border-slate-100 rounded-2xl">
暂无公告图片
</div>
`;
return;
}
preview.innerHTML = notifImageUrls.map((url, index) => `
<div class="relative group aspect-square rounded-2xl overflow-hidden border border-slate-100 bg-slate-50">
<img src="${url}" class="w-full h-full object-cover" loading="lazy">
<button type="button" onclick="removeNotifImage(${index})" class="absolute top-2 right-2 w-7 h-7 rounded-full bg-rose-500 text-white flex items-center justify-center opacity-0 group-hover:opacity-100 transition-all">
<i data-lucide="x" class="w-4 h-4"></i>
</button>
</div>
`).join('');
lucide.createIcons();
}
function removeNotifImage(index) {
notifImageUrls.splice(index, 1);
renderNotifImages();
}
async function uploadNotifImages(files) {
if (!files || files.length === 0) return;
const formData = new FormData();
Array.from(files).forEach(file => formData.append('images', file));
const r = await fetch('/api/upload', {
method: 'POST',
body: formData
});
const d = await r.json();
if (!r.ok || d.error) {
throw new Error(d.error || '图片上传失败');
}
notifImageUrls = notifImageUrls.concat(d.urls || []);
renderNotifImages();
}
async function loadNotifications() {
try {
const r = await fetch('/api/admin/notifications');
@ -86,9 +143,10 @@
}">${n.is_active ? '激活中' : '已下线'}</span>
</td>
<td class="px-8 py-5 text-slate-700 font-bold">${n.title}</td>
<td class="px-8 py-5 text-slate-400 font-mono text-xs">${(n.image_urls || []).length} 张</td>
<td class="px-8 py-5 text-slate-400 font-mono text-xs">${n.created_at}</td>
<td class="px-8 py-5 text-right space-x-2">
<button onclick='editNotif(${JSON.stringify(n)})' class="p-2 text-indigo-600 hover:bg-indigo-50 rounded-lg transition-colors">
<button onclick="editNotifFromPayload('${encodeURIComponent(JSON.stringify(n))}')" class="p-2 text-indigo-600 hover:bg-indigo-50 rounded-lg transition-colors">
<i data-lucide="edit-3" class="w-4 h-4"></i>
</button>
<button onclick="deleteNotif(${n.id})" class="p-2 text-rose-500 hover:bg-rose-50 rounded-lg transition-colors">
@ -98,23 +156,30 @@
</tr>
`).join('');
lucide.createIcons();
} catch (e) { console.error(e); }
} catch (e) {
console.error(e);
}
}
function openModal() {
document.getElementById('modalTitle').innerText = '发布通知';
document.getElementById('notifForm').reset();
document.getElementById('notifId').value = '';
const m = document.getElementById('notifModal');
m.classList.remove('hidden');
setTimeout(() => { m.classList.add('opacity-100'); m.querySelector('div').classList.remove('scale-95'); }, 10);
notifImageUrls = [];
renderNotifImages();
const modal = document.getElementById('notifModal');
modal.classList.remove('hidden');
setTimeout(() => {
modal.classList.add('opacity-100');
modal.querySelector('div').classList.remove('scale-95');
}, 10);
}
function closeModal() {
const m = document.getElementById('notifModal');
m.classList.remove('opacity-100');
m.querySelector('div').classList.add('scale-95');
setTimeout(() => m.classList.add('hidden'), 300);
const modal = document.getElementById('notifModal');
modal.classList.remove('opacity-100');
modal.querySelector('div').classList.add('scale-95');
setTimeout(() => modal.classList.add('hidden'), 300);
}
function editNotif(n) {
@ -124,16 +189,24 @@
document.getElementById('notifTitle').value = n.title;
document.getElementById('notifContent').value = n.content;
document.getElementById('notifActive').checked = n.is_active;
notifImageUrls = n.image_urls || [];
renderNotifImages();
}
function editNotifFromPayload(payload) {
editNotif(JSON.parse(decodeURIComponent(payload)));
}
async function deleteNotif(id) {
if(!confirm('确定要删除这条通知吗？用户将无法再看到它。')) return;
if (!confirm('确定要删除这条通知吗？用户将无法再看到它。')) return;
const r = await fetch('/api/admin/notifications/delete', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({id})
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ id })
});
if(r.ok) loadNotifications();
if (r.ok) {
loadNotifications();
}
}
document.getElementById('notifForm').onsubmit = async (e) => {
@ -142,21 +215,32 @@
id: document.getElementById('notifId').value,
title: document.getElementById('notifTitle').value,
content: document.getElementById('notifContent').value,
image_urls: notifImageUrls,
is_active: document.getElementById('notifActive').checked
};
const r = await fetch('/api/admin/notifications', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(data)
});
if(r.ok) {
if (r.ok) {
closeModal();
loadNotifications();
showToast('通知发布成功', 'success');
}
};
document.getElementById('notifImagesInput').addEventListener('change', async (e) => {
try {
await uploadNotifImages(e.target.files);
e.target.value = '';
} catch (err) {
showToast(err.message || '图片上传失败', 'error');
}
});
renderNotifImages();
loadNotifications();
</script>
{% endblock %}