수업소개
삭제 작업을 하기 위해서는 삭제 버튼이 있어야 합니다. 이 때 링크를 사용하는 안됩니다. 링크 대신 form을 이용해서 삭제 버튼을 만드는 방법을 살펴보겠습니다.
강의
소스코드
main.js (변경사항)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | var http = require('http');var fs = require('fs');var url = require('url');var qs = require('querystring');function templateHTML(title, list, body, control){ return ` <!doctype html> <html> <head> <title>WEB1 - ${title}</title> <meta charset="utf-8"> </head> <body> <h1><a href="/">WEB</a></h1> ${list} ${control} ${body} </body> </html> `;}function templateList(filelist){ var list = '<ul>'; var i = 0; while(i < filelist.length){ list = list + `<li><a href="/?id=${filelist[i]}">${filelist[i]}</a></li>`; i = i + 1; } list = list+'</ul>'; return list;}var app = http.createServer(function(request,response){ var _url = request.url; var queryData = url.parse(_url, true).query; var pathname = url.parse(_url, true).pathname; if(pathname === '/'){ if(queryData.id === undefined){ fs.readdir('./data', function(error, filelist){ var title = 'Welcome'; var description = 'Hello, Node.js'; var list = templateList(filelist); var template = templateHTML(title, list, `<h2>${title}</h2>${description}`, `<a href="/create">create</a>` ); response.writeHead(200); response.end(template); }); } else { fs.readdir('./data', function(error, filelist){ fs.readFile(`data/${queryData.id}`, 'utf8', function(err, description){ var title = queryData.id; var list = templateList(filelist); var template = templateHTML(title, list, `<h2>${title}</h2>${description}`, ` <a href="/create">create</a> <a href="/update?id=${title}">update</a> <form action="delete_process" method="post"> <input type="hidden" name="id" value="${title}"> <input type="submit" value="delete"> </form>` ); response.writeHead(200); response.end(template); }); }); } } else if(pathname === '/create'){ fs.readdir('./data', function(error, filelist){ var title = 'WEB - create'; var list = templateList(filelist); var template = templateHTML(title, list, ` <form action="/create_process" method="post"> <p><input type="text" name="title" placeholder="title"></p> <p> <textarea name="description" placeholder="description"></textarea> </p> <p> <input type="submit"> </p> </form> `, ''); response.writeHead(200); response.end(template); }); } else if(pathname === '/create_process'){ var body = ''; request.on('data', function(data){ body = body + data; }); request.on('end', function(){ var post = qs.parse(body); var title = post.title; var description = post.description; fs.writeFile(`data/${title}`, description, 'utf8', function(err){ response.writeHead(302, {Location: `/?id=${title}`}); response.end(); }) }); } else if(pathname === '/update'){ fs.readdir('./data', function(error, filelist){ fs.readFile(`data/${queryData.id}`, 'utf8', function(err, description){ var title = queryData.id; var list = templateList(filelist); var template = templateHTML(title, list, ` <form action="/update_process" method="post"> <input type="hidden" name="id" value="${title}"> <p><input type="text" name="title" placeholder="title" value="${title}"></p> <p> <textarea name="description" placeholder="description">${description}</textarea> </p> <p> <input type="submit"> </p> </form> `, `<a href="/create">create</a> <a href="/update?id=${title}">update</a>` ); response.writeHead(200); response.end(template); }); }); } else if(pathname === '/update_process'){ var body = ''; request.on('data', function(data){ body = body + data; }); request.on('end', function(){ var post = qs.parse(body); var id = post.id; var title = post.title; var description = post.description; fs.rename(`data/${id}`, `data/${title}`, function(error){ fs.writeFile(`data/${title}`, description, 'utf8', function(err){ response.writeHead(302, {Location: `/?id=${title}`}); response.end(); }) }); }); } else if(pathname === '/delete_process'){ var body = ''; request.on('data', function(data){ body = body + data; }); request.on('end', function(){ var post = qs.parse(body); var id = post.id; fs.unlink(`data/${id}`, function(error){ response.writeHead(302, {Location: `/`}); response.end(); }) }); } else { response.writeHead(404); response.end('Not found'); }});app.listen(3000); |
