Add files via upload

coderainforever · web-flow · commit 8b7dc87fe358 · 2022-10-29T02:28:26.000+05:30
diff --git a/server.py b/server.py
@@ -0,0 +1,117 @@
+from flask import Flask, request, redirect
+
+app = Flask(__name__)
+
+nextId=4
+topics = [
+    {'id':1, 'title':'HTML', 'body': "I think html is awesome..."},
+    {'id':2, 'title':'CSS', 'body': "I think css is awesome..."},
+    {'id':3, 'title':'JS', 'body': "I think js is awesome..."}
+]
+# Template
+def template(contents, content, id=None):
+    contextUI= ''
+    if id!=None:
+        contextUI=f'''
+        <li><a href="/update/{id}/">Update</a></li>
+        <li><form action="/delete/{id}/" method="POST"><input type="submit" value="delete"></li>
+        '''
+    return f'''<!doctype html> 
+        <html>
+            <head>
+                <title>My Flask Website</title>
+            </head>
+            <body>
+                <h1><a href="/">Homepage</a></h1>
+                <ol>
+                    {contents}
+                </ol>
+                {content}
+                <ul>
+                    <li><a href="/create/">Create</a></li>
+                    {contextUI}
+                </ul>
+            </body>
+        </html>
+        '''
+def getContents():
+    liTags=''
+    for topic in topics:
+        liTags = liTags+ f'<li><a href="/read/{topic["id"]}/">{topic["title"]}</a></li>'
+    return liTags
+# Root        
+@app.route('/')
+def index():
+    return template(getContents(), '<h2>Welcome!</h2>Hello world!')
+# Read
+@app.route('/read/<int:id>/')
+def read(id):
+    title=''
+    body=''
+    for topic in topics:
+        if id == topic['id']:
+            title = topic['title']
+            body = topic['body']
+            break
+    return template(getContents(), f'<h2>{title}</h2>{body}', id)
+# Create   
+@app.route('/create/', methods=['GET', 'POST'])
+def create():
+    if(request.method == 'GET'):
+        content=''' 
+        <form action="/create/" method="POST">
+            <p><input type="text" name="title" placeholder="title"></p>
+            <p><textarea name="body" placeholder="body"></textarea></p>
+            <p><input type="submit" value="create"></p>
+        </form>
+        '''
+        return template(getContents(), content)
+    elif request.method == 'POST':
+        global nextId
+        title=request.form['title']
+        body=request.form['body']
+        newTopic={'id': nextId, 'title':title, 'body':body}
+        topics.append(newTopic)
+        url ='/read/'+str(nextId)+'/'
+        nextId=nextId+1
+        return redirect(url)
+# Update
+@app.route('/update/<int:id>/', methods=['GET', 'POST'])
+def update(id):
+    if(request.method == 'GET'):
+        title=''
+        body=''
+        for topic in topics:
+            if id==topic['id']:
+                title=topic['title']
+                body=topic['body']
+                break
+        content=f''' 
+        <form action="/update/{id}/" method="POST">
+            <p><input type="text" name="title" placeholder="title" value={title}></p>
+            <p><textarea name="body" placeholder="body">{body}</textarea></p>
+            <p><input type="submit" value="update"></p>
+        </form>
+        '''
+        return template(getContents(), content)
+    elif request.method == 'POST':
+        global nextId
+        title=request.form['title']
+        body=request.form['body']
+        for topic in topics:
+            if id==topic['id']:
+                topic['title'] = title
+                topic['body'] = body
+                break
+        url ='/read/'+str(id)+'/'
+        return redirect(url)
+# Delete    
+@app.route('/delete/<int:id>/', methods=['POST'])
+def delete(id):
+    for topic in topics:
+        if id==topic['id']:
+           topics.remove(topic)
+           break
+    return redirect("/")
+
+app.run(debug=True)
