[英]Where should i put javaScript function in node?
I have simple function for pagination that makes output. 我有简单的分页功能,可以输出。
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Arguments that these function need to calculate result is current number of page and total number of pages. 这些函数需要计算结果的参数是当前页数和总页数。
But i cant put it in my view (handlebars) because {{each pageArray}}
need data comming from backend if i am right. 但是我不能将其放在我的视图(把手)中,因为如果我是对的,
{{each pageArray}}
需要从后端来的数据。
But i cant put it in my route.js because at the moment of function call i dont know number of pages or current number. 但是我不能将其放在我的route.js中,因为在函数调用时,我不知道页面数或当前数。 It works only if i pass fake data like total pages = 100 and current page = 5
仅当我传递虚假数据(例如总页数= 100,当前页= 5)时,此方法才有效
I dont know how to make it works. 我不知道如何使它工作。 I dont understand how express-paginate works for example they done it somehow...
我不明白特快专页的工作原理,例如他们以某种方式做到了...
My route.js 我的route.js
// View users
router.get("/show/:page", function (req, res, next) {
var perPage = 1
var page = req.params.page || 1
User
.find({})
.skip((perPage * page) - perPage)
.limit(perPage)
.exec(function (err, users) {
User.countDocuments().exec(function (err, count) {
if (err) return next(err)
res.render('../core/modules/users/views/userList', {
layout: "cmsLayout",
users: users,
current: page,
pages: Math.ceil(count / perPage),
helpers,
pagesArr: Array.from(Array(((Math.ceil(count / perPage)))).keys()).map(i => 1 + i),
pageArray: pagination
})
})
})
});
My pagination function 我的分页功能
function pagination(currentPage, nrOfPages) {
var delta = 2,
range = [],
rangeWithDots = [],
l;
range.push(1);
if (nrOfPages <= 1) {
return range;
}
for (let i = currentPage - delta; i <= currentPage + delta; i++) {
if (i < nrOfPages && i > 1) {
range.push(i);
}
}
range.push(nrOfPages);
for (let i of range) {
if (l) {
if (i - l === 2) {
rangeWithDots.push(l + 1);
} else if (i - l !== 1) {
rangeWithDots.push('...');
}
}
rangeWithDots.push(i);
l = i;
}
return rangeWithDots;
}
Solved by changing 通过改变解决
pagination: pagination(current, pages)
to 至
pagination: pagination(page, (Math.ceil(count / perPage)))
Thanks to @iagowp for solution. 感谢@iagowp提供解决方案。
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