質問編集履歴
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アドバイスを受け無事解決したので、結果を書きました。
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@@ -179,3 +179,281 @@
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export default Index;
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```
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# 解決方法
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アドバイスを受け無事表示できたので結果を載せておきます。
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## 【うまくいった方法】
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js側で投稿記事を抽出するロジックを書く
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jsx側では表示のみにする
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```jsx
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// js側で抽出
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// auth userの投稿記事のみ抽出
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const result = list.filter((e) => {
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return e.authId === authId;
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});
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console.log(result);
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const length = result.length;
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console.log(length);
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{/* jsx側で表示 */}
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<div className="post-list user-post-list">
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{length !== 0 ? (
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<React.Fragment>
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{result.map(item => (
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<div key={item.docId + String(new Date())}>
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<div className="auth-inner-post-list">
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<div className="auth-inner-post-text">
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<div className="post-msg">{item.msg}</div>
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<span className="delete" onClick={() => handleDelete(item.docId)}>> Delete...</span>
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</div>
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</div>
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</div>
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))}
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</React.Fragment>
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) : (
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<div className="no-user-posts">まだ記事が投稿されていません</div>
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)}
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</div>
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```
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```jsx
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// コード全文
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import React from 'react';
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import { Link } from 'react-router-dom';
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import firebase, { db } from '../../Firebase';
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import SignOut from '../FirebaseAuthHook/SignOut';
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import { useCollectionData } from "react-firebase-hooks/firestore";
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import BackTopIcon from '../../assets/img/backtop.png';
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import UserIcon from '../../assets/img/user.png';
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import styled from 'styled-components';
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const BackTopStyle = styled.img`
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width: 50px;
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top: 25px;
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left: 25px;
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position: fixed;
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zIndex: 11,
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`;
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const Index = () => {
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// Firebese Auth uid, email取得
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const user = firebase.auth().currentUser;
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let authId;
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let name;
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let photoURL;
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if (user !== null) {
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user.providerData.forEach(() => {
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authId = user.uid;
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name = user.displayName;
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photoURL = user.photoURL;
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});
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}
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// Render
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const [ list, loading, error ] = useCollectionData(db.collection('posts').orderBy('createdAt', 'desc'), { idField: 'docId' });
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if (loading) return <div>Loading...</div>;
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if (error) return <div>Error...</div>;
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// auth userの投稿記事のみ抽出
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const result = list.filter((e) => {
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return e.authId === authId;
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});
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console.log(result);
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const length = result.length;
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console.log(length);
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// Delete
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const handleDelete = (uid) => {
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if (window.confirm('削除しますか?')) {
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db.collection('posts').doc(uid).delete();
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}
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}
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return(
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<React.Fragment>
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<SignOut />
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<Link to="/"><BackTopStyle src={ BackTopIcon } alt="Topに戻る"/></Link>
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<div className="user-wrapper">
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<div className="user">
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{photoURL ? (
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<img src={ photoURL } className="auth-user-icon" alt="User Thumbnail" />
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) : (
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<img src={ UserIcon } className="auth-user-icon" alt="Firebase Thumbnail" />
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)}
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<div className="user-datail">
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{name ? (
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<div className="user-name">{name}</div>
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) : (
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<div className="user-name">Firebaseユーザー</div>
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)}
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</div>
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</div>
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<div className="post-list user-post-list">
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{length !== 0 ? (
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<React.Fragment>
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{result.map(item => (
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<div key={item.docId + String(new Date())}>
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<div className="auth-inner-post-list">
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<div className="auth-inner-post-text">
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<div className="post-msg">{item.msg}</div>
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<span className="delete" onClick={() => handleDelete(item.docId)}>> Delete...</span>
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</div>
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</div>
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</div>
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))}
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</React.Fragment>
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) : (
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<div className="no-user-posts">まだ記事が投稿されていません</div>
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)}
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</div>
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</div>
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</React.Fragment>
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);
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}
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export default Index;
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```
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