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Author: roytuts

python_flask_user_crud/app.py

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+from flask import Flask
+
+app = Flask(__name__)
+app.secret_key = "secret key"

python_flask_user_crud/db_config.py

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+from app import app
+from flaskext.mysql import MySQL
+
+mysql = MySQL()
+ 
+# MySQL configurations
+app.config['MYSQL_DATABASE_USER'] = 'root'
+app.config['MYSQL_DATABASE_PASSWORD'] = ''
+app.config['MYSQL_DATABASE_DB'] = 'roytuts'
+app.config['MYSQL_DATABASE_HOST'] = 'localhost'
+mysql.init_app(app)

python_flask_user_crud/main.py

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+import pymysql
+from app import app
+from tables import Results
+from db_config import mysql
+from flask import flash, render_template, request, redirect
+from werkzeug import generate_password_hash, check_password_hash
+
+@app.route('/new_user')
+def add_user_view():
+	return render_template('add.html')
+		
+@app.route('/add', methods=['POST'])
+def add_user():
+	try:		
+		_name = request.form['inputName']
+		_email = request.form['inputEmail']
+		_password = request.form['inputPassword']
+		# validate the received values
+		if _name and _email and _password and request.method == 'POST':
+			#do not save password as a plain text
+			_hashed_password = generate_password_hash(_password)
+			# save edits
+			sql = "INSERT INTO tbl_user(user_name, user_email, user_password) VALUES(%s, %s, %s)"
+			data = (_name, _email, _hashed_password,)
+			conn = mysql.connect()
+			cursor = conn.cursor()
+			cursor.execute(sql, data)
+			conn.commit()
+			flash('User added successfully!')
+			return redirect('/')
+		else:
+			return 'Error while adding user'
+	except Exception as e:
+		print(e)
+	finally:
+		cursor.close() 
+		conn.close()
+		
+@app.route('/')
+def users():
+	try:
+		conn = mysql.connect()
+		cursor = conn.cursor(pymysql.cursors.DictCursor)
+		cursor.execute("SELECT * FROM tbl_user")
+		rows = cursor.fetchall()
+		table = Results(rows)
+		table.border = True
+		return render_template('users.html', table=table)
+	except Exception as e:
+		print(e)
+	finally:
+		cursor.close() 
+		conn.close()
+
+@app.route('/edit/<int:id>')
+def edit_view(id):
+	try:
+		conn = mysql.connect()
+		cursor = conn.cursor(pymysql.cursors.DictCursor)
+		cursor.execute("SELECT * FROM tbl_user WHERE user_id=%s", id)
+		row = cursor.fetchone()
+		if row:
+			return render_template('edit.html', row=row)
+		else:
+			return 'Error loading #{id}'.format(id=id)
+	except Exception as e:
+		print(e)
+	finally:
+		cursor.close()
+		conn.close()
+
+@app.route('/update', methods=['POST'])
+def update_user():
+	try:		
+		_name = request.form['inputName']
+		_email = request.form['inputEmail']
+		_password = request.form['inputPassword']
+		_id = request.form['id']
+		# validate the received values
+		if _name and _email and _password and _id and request.method == 'POST':
+			#do not save password as a plain text
+			_hashed_password = generate_password_hash(_password)
+			print(_hashed_password)
+			# save edits
+			sql = "UPDATE tbl_user SET user_name=%s, user_email=%s, user_password=%s WHERE user_id=%s"
+			data = (_name, _email, _hashed_password, _id,)
+			conn = mysql.connect()
+			cursor = conn.cursor()
+			cursor.execute(sql, data)
+			conn.commit()
+			flash('User updated successfully!')
+			return redirect('/')
+		else:
+			return 'Error while updating user'
+	except Exception as e:
+		print(e)
+	finally:
+		cursor.close() 
+		conn.close()
+		
+@app.route('/delete/<int:id>')
+def delete_user(id):
+	try:
+		conn = mysql.connect()
+		cursor = conn.cursor()
+		cursor.execute("DELETE FROM tbl_user WHERE user_id=%s", (id,))
+		conn.commit()
+		flash('User deleted successfully!')
+		return redirect('/')
+	except Exception as e:
+		print(e)
+	finally:
+		cursor.close() 
+		conn.close()
+		
+if __name__ == "__main__":
+    app.run()

python_flask_user_crud/tables.py

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+from flask_table import Table, Col, LinkCol
+ 
+class Results(Table):
+    user_id = Col('Id', show=False)
+    user_name = Col('Name')
+    user_email = Col('Email')
+    user_password = Col('Password', show=False)
+    edit = LinkCol('Edit', 'edit_view', url_kwargs=dict(id='user_id'))
+    delete = LinkCol('Delete', 'delete_user', url_kwargs=dict(id='user_id'))

python_flask_user_crud/templates/add.html

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+<doctype html>
+<title>Add User - Python Flask MySQL CRUD</title>
+<h2>Add User</h2>
+<form method="post" action="/add">
+    <dl>
+		<p>
+			<input name="inputName" value="" type="text" placeholder="Name" autocomplete="off" required>
+		</p>
+		<p>
+			<input name="inputEmail" value="" type="text" placeholder="Email" autocomplete="off" required>
+		</p>
+		<p>
+			<input name="inputPassword" value="" type="password" placeholder="Password" autocomplete="off" required>
+		</p>
+    </dl>
+    <p>
+		<input type="submit" value="Submit">
+	</p>
+</form>

python_flask_user_crud/templates/edit.html

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+<doctype html>
+<title>Edit User - Python Flask MySQL CRUD</title>
+<h2>Edit User</h2>
+<form method="post" action="/update">
+    <dl>
+		<p>
+			<input name="inputName" value="{{ row['user_name'] }}" type="text" placeholder="Name" autocomplete="off" required>
+		</p>
+		<p>
+			<input name="inputEmail" value="{{ row['user_email'] }}" type="text" placeholder="Email" autocomplete="off" required>
+		</p>
+		<p>
+			<input name="inputPassword" value="" type="password" placeholder="Password" autocomplete="off" required>
+		</p>
+    </dl>
+    <p>
+		<input name="id" value="{{ row['user_id'] }}" type="hidden">
+		<input type="submit" value="Submit">
+	</p>
+</form>

python_flask_user_crud/templates/users.html

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+<doctype html>
+<title>List of users - Python Flask MySQL CRUD</title>
+
+<p><a href="{{ url_for('.add_user_view') }}"> Add User </a></p>
+
+<p>
+	{% with messages = get_flashed_messages() %}
+	  {% if messages %}
+		<ul class=flashes>
+		{% for message in messages %}
+		  <li>{{ message }}</li>
+		{% endfor %}
+		</ul>
+	  {% endif %}
+	{% endwith %}
+</p>
+
+{{ table }}