[英]req.flash() not working when rest succeed
我在閃爍req.flash('success','Page Edited!');
遇到問題req.flash('success','Page Edited!');
在管理員/頁面上,而我可以在req.flash('danger',"Page slug already exsists")
具有相應錯誤的頁面時輕松閃爍req.flash('danger',"Page slug already exsists")
。 它僅在我重定向和查詢到 mongoDB 時發生。
我的代碼是
router.post('/edit-page/:slug',function(req,res){
req.checkBody('title','title must have a value.').notEmpty();
req.checkBody('content','Content must have a value.').notEmpty();
var title = req.body.title;
var slug = req.body.slug.replace(/\s+/g,'-').toLowerCase();
if (slug=="")slug= title.replace(/\s+/g,'-').toLowerCase();
var content = req.body.content;
var id = req.body.id;
var errors = req.validationErrors();
if (errors){
res.render('admin/edit_page',{
errors:errors,
title:title,
slug:slug,
content:content,
id:id
});
console.log(errors)
}else{
Page.findOne({slug: slug,_id:{'$ne':id}}, (err,page)=>{
if (page){
req.flash('danger',"Page slug already exsists")
res.render('admin/edit_page',{
title:title,
slug:slug,
content:content,
id:id
});
console.log(errors)
}else{
Page.findById(id, function (err,page){
if(err){
console.log(err);
}else{
page.title=title;
page.slug=slug;
page.content=content;
page.save(function(err){
if(err) return console.log(err);
console.log('debug');
res.redirect('/admin/pages');
//this is the code that wont flash to another page
req.flash('success','Page Edited!');
});
}
});
}
});
}
});
問題是您在設置 flash 消息之前重定向用戶
res.redirect('/admin/pages');
//this is the code that wont flash to another page
req.flash('success','Page Edited!');
反轉這些線應該有效。
從文檔中不是很清楚,但是res.redirect()
工作方式就像res.send()
/ res.end()
(並且通常是您在請求處理程序中做的最后一件事)。
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