Не работает map

2025-05-07 12:03:51 +04:00
parent 200700cbb4
commit 8946193876
8 changed files with 141 additions and 72 deletions
--- a/index.html
+++ b/index.html
@@ -2,9 +2,8 @@
 <html lang="en">
  <head>
    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Vite + React</title>
+    <title>УлЧУ</title>
  </head>
  <body>
    <div id="root"></div>
--- a/src/App.css
+++ b/src/App.css
@@ -1,42 +0,0 @@
-#root {
-  max-width: 1280px;
-  margin: 0 auto;
-  padding: 2rem;
-  text-align: center;
-}
-
-.logo {
-  height: 6em;
-  padding: 1.5em;
-  will-change: filter;
-  transition: filter 300ms;
-}
-.logo:hover {
-  filter: drop-shadow(0 0 2em #646cffaa);
-}
-.logo.react:hover {
-  filter: drop-shadow(0 0 2em #61dafbaa);
-}
-
-@keyframes logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
-}
-
-@media (prefers-reduced-motion: no-preference) {
-  a:nth-of-type(2) .logo {
-    animation: logo-spin infinite 20s linear;
-  }
-}
-
-.card {
-  padding: 2em;
-}
-
-.read-the-docs {
-  color: #888;
-}
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -1,34 +1,11 @@
-import { useState } from 'react'
-import reactLogo from './assets/react.svg'
-import viteLogo from '/vite.svg'
+import News from "./components/News/News"
 import './App.css'

 function App() {
-  const [count, setCount] = useState(0)
-
  return (
-    <>
-      <div>
-        <a href="https://vite.dev" target="_blank">
-          <img src={viteLogo} className="logo" alt="Vite logo" />
-        </a>
-        <a href="https://react.dev" target="_blank">
-          <img src={reactLogo} className="logo react" alt="React logo" />
-        </a>
-      </div>
-      <h1>Vite + React</h1>
-      <div className="card">
-        <button onClick={() => setCount((count) => count + 1)}>
-          count is {count}
-        </button>
-        <p>
-          Edit <code>src/App.jsx</code> and save to test HMR
-        </p>
-      </div>
-      <p className="read-the-docs">
-        Click on the Vite and React logos to learn more
-      </p>
-    </>
+    <div className="m-2">
+      <News />
+    </div>
  )
 }

--- a/src/components/News/Hooks/NewsHook.jsx
+++ b/src/components/News/Hooks/NewsHook.jsx
@@ -0,0 +1,38 @@
+import { useState } from "react"
+
+export const useNews = () => {
+    const [News, setNews] = useState([])
+
+    const addNews = (id, name, teg, description) => {
+        const newNews = {}
+        newNews.id = id
+        newNews.name = name
+        newNews.teg = teg
+        newNews.description = description
+        setNews([...News, newNews])
+    }
+
+    const editNews = (id, name, teg, description) => {
+        setNews(
+            News.map((news) => {
+                if (news.id === id) {
+                    return { news, id, name, teg, description }
+                } else {
+                    return news
+                }
+            })
+        )
+    }
+
+    const removeNews = (id) => {
+        setNews(News.filter((news) => news.id !== id))
+    }
+
+    const sortNews = () => {
+        const newNews = [...News]
+        newNews.reverse()
+        setNews(newNews)
+    }
+
+    return { News, addNews, editNews, removeNews, sortNews }
+}
--- a/src/components/News/News.jsx
+++ b/src/components/News/News.jsx
@@ -0,0 +1,9 @@
+import NewsInfo from "./NewsItem/NewsInfo"
+
+export default function News({className = null}) {
+    return (
+        <div className = {className}>
+            <NewsInfo />
+        </div>
+    )
+}
--- a/src/components/News/News.module.css
+++ b/src/components/News/News.module.css
--- a/src/components/News/NewsItem/NewsInfo.jsx
+++ b/src/components/News/NewsItem/NewsInfo.jsx
@@ -0,0 +1,75 @@
+import { useState } from "react"
+import NewsItem from "./NewsItem"
+import { useNews } from "../Hooks/NewsHook"
+
+let key = 1
+
+export default function NewsInfo() {
+    const [inputs, setInputs] = useState({ id: "", name: "", teg: "", description: "" })
+    const { news, addNews, editNews, removeNews, sortNews } = useNews()
+
+    const handleClear = () => {
+        setInputs({ id: "", name: "", teg: "", description: "" })
+    }
+
+    const handleSubmit = (event) => {
+        event.preventDefault()
+        event.stopPropagation()
+
+        if (!inputs.id) {
+            addNews(key++, inputs.name, inputs.teg, inputs.description)
+        } else {
+            editNews(inputs.id, inputs.name, inputs.teg, inputs.description)
+        }
+
+        handleClear()
+    };
+
+    const handleEdit = (id) => {
+        const data = news.find((news) => news.id === id)
+        if (!data) {
+            return
+        }
+        setInputs({ ...inputs, ...data })
+    };
+
+    const handleRemove = (id) => {
+        removeNews(id)
+        handleClear()
+    };
+
+    const handleChange = (event) => {
+        setInputs({ ...inputs, [event.target.name]: event.target.value })
+    };
+
+    const newsItems = news.map((item) => {
+        return <NewsItem key={item.id} news={item} onEdit={handleEdit} onDelete={handleRemove} />
+    })
+
+    return (
+        <div className="card my-2 p-2">
+            <h5 className="my-2">Новости</h5>
+            <form className="my-2 p-2" onSubmit={handleSubmit}>
+                <input name="id" type="hidden" value={inputs.id} />
+                <p>Название</p>
+                <input name="name" type="text" value={inputs.name} onChange={handleChange} required />
+                <p>Тег</p>
+                <input name="teg" type="text" value={inputs.teg} onChange={handleChange} required />
+                <p>Описание</p>
+                <input name="description" type="text" value={inputs.description} onChange={handleChange} required />
+                <div className="my-2">
+                    <button type="submit" className="mx-2">
+                        Сохранить
+                    </button>
+                    <button type="button" className="mx-2" onClick={handleClear}>
+                        Очистить
+                    </button>
+                </div>
+            </form>
+            <button className="d-block my-2" onClick={() => sortNews()}>
+                Сортировать
+            </button>
+            {newsItems}
+        </div>
+    )
+}
--- a/src/components/News/NewsItem/NewsItem.jsx
+++ b/src/components/News/NewsItem/NewsItem.jsx
@@ -0,0 +1,13 @@
+export default function NewsItem({news, onEdit, onDelete}) {
+    return (
+        <div>
+            <p className="m-2">Название: {news.name}</p>
+            <p className="m-2">Тег: {news.teg}</p>
+            <p className="m-2">{news.description}</p>
+            <div className="m-2">
+                <button className="m-2" onClick={() => onEdit(news.id)}>Редактировать {news.id}</button>
+                <button className="m-2" onClick={() => onDelete(news.id)}>Удалить {news.id}</button>
+            </div>
+        </div>
+    )
+}