I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!
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import React, { Component } from 'react' | |
import { Redirect } from 'react-router' | |
export default class ContactForm extends Component { | |
constructor () { | |
super(); | |
this.state = { | |
fireRedirect: false | |
} | |
} |
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-- Create a group | |
CREATE ROLE readaccess; | |
-- Grant access to existing tables | |
GRANT USAGE ON SCHEMA public TO readaccess; | |
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readaccess; | |
-- Grant access to future tables | |
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readaccess; |
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''' | |
given a Model with: | |
category = models.CharField(max_length=32, choices=CATEGORY_CHOICES) | |
pubdate = models.DateTimeField(default=datetime.now) | |
<other fields> | |
Fetch the item from each category with the latest pubdate. | |
''' |