Pagination in Flask using MySql

问题

I searched a lot about it. All the articles i get include SQLAlchemy and none of them deal with mysql. I am working with flask and i have a database in mysql and i need to display the data in pages. Like 1000 images, per page 10 so 100 pages. In mysql we can do pagination with the help of limit. And the routes can be:

@app.route('/images', defaults={'page':1})
@app.route('/images/page/<int:page>')

I need to ask is this all that is needed for pagination? or am i forgetting something important here? and mysql syntax would be:

db = mysql.connect('localhost', 'root', 'password', 'img')
cursor = db.cursor()
cursor.execute('SELECT Id,Title,Img FROM image ORDER BY RAND() limit 20 offset 0;')
data = list(cursor.fetchall())

to get the first 20 results but how to get the next according to the pageno.? Flask-paginate library works only for tSQLAlchemy.

回答1:

Try this

@app.route('/images', defaults={'page':1})
@app.route('/images/page/<int:page>')
def abc(page):
    perpage=20
    startat=page*perpage
    db = mysql.connect('localhost', 'root', 'password', 'img')
    cursor = db.cursor()
    cursor.execute('SELECT Id,Title,Img FROM image limit %s, %s;', (startat,perpage))
    data = list(cursor.fetchall())

May be this will help.

回答2:

Try this flask-mysql-paginate

You could then call the {{paginate.links}} in your html file

回答3:

Here it is, pure SQL solution.

SELECT * FROM table LIMIT [offset,] rows;
or
SELECT * FROM table LIMIT rows OFFSET offset;

For example:

select * from user
limit 100 offset 850100;

来源：https://stackoverflow.com/questions/24383223/pagination-in-flask-using-mysql

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python

mysql

pagination

Flask