When I am developing locally, I'll just run a
rails c
and I can fire of queries at the console.
However, how can I query and access my postgres database that is up on heroku?
You can run heroku run rails c --app <appname>. I will also add, if you want to view your database, you can make use of PG Commander https://eggerapps.at/pgcommander/ which actually automatically parses all the credentials out for you.
If you want to do this, run heroku config --app <appname> and then copy the DATABASE_URL. After you've done this, create a new favourite in your PG Commander and you'll see that it has already automatically filled in all the credentials based on what was in your clipboard.
Related
I have deployed an application in Heroku. It is Rails applications. The DB is postgres. So this is the app in heroku. Now I want to create new app which will be a clone of the previous app. But it will have separate DB. How should I get going? I would also like to know about configuring the DB from heroku. I am not so techy so please go easy on me.
Thanks!
But it will have separate DB
So, just create a new heroku app, add PG add-on to it, and that's it. No more steps. It will have a separate database. I think you don't even have to add PG add-on, it probably is added by default.
If you wanted two apps use the same DB, then you'd have to do extra steps.
You can use Heroku Fork to clone your application. This will copy the app, environment variables and any postgres databases (and their data if you want it) to a separate Heroku application.
heroku fork --from old-app-name --to new-app-name
I've just upgraded my heroku database. I'm now trying to copy the data from my old database to my new database, however I keep getting this error. Could it be that I'm unable to copy it because write access is revoked?
Why not just import and export a backup using PG Backups, your issue here is that your databases are in different apps(environments), so from the console using --app earthedhub will just let you use the DATABASE_URL.
use a PG Backups take a look to this post
When I log onto the website (example.herokuapp.com) and create a user, the user is created in the Heroku Postgres::Database but when I go into Cloud9 and enter Rails Console, the user does not exist in my production database. How can I merge the changes made in production (Heroku) with development (local Rails) so that these users show up in Rails Console? Thanks.
If you need the users to show up in the console you can run
heroku run console --app APP_NAME
If you'd like to "merge" the database you have to export your heroku Postgres database and convert the table to SQL format.
For more information about exporting PG Backups: https://devcenter.heroku.com/articles/heroku-postgres-import-export
Another stackoverflow post that might help: How to I merge two databases with same schema that are on Heroku?
How can I insert new records to Heroku database. I have successfully uploaded my application and database structure. Now I need to insert some records so it could work. I tried to use seeds.rb but without any success. db:push and db:seed don't give any success. The database is always empty. Is there any heroku tool available which I could use to see database structure and insert data?
Thank you.
You have a few options. You can run heroku run rake db:seed.
Or assuming Postgres, try
heroku pg:psql
And run your SQL commands from there. See here for more.
I was also able to connect my IDE to my databases on Heroku. I am using RubyMine, so it was a matter of using the right JDBC URL to make that happen.
You can use below command for insert record to Heroku server
heroku run rails c
Example:-
suppose you have one table is employee and field are first_name.
Now open a command line and call this command
heroku run rails c
After call insert command
Employee.create(first_name: "admin")
I've just deployed my application to heroku and pointed my custom domain to the heroku servers. How can I check the records in my heroku database?
You can use heroku run rails console and look at your records with Model.all or any other method.
If you want to backup the database look at heroku PG backups, you then can import your database on your local machine and look at it there. Depending on your db adapter you could use sqlite browser for sqlite3 or phpmyadmin for MySQL.
I found a similar question like this and here is what #Chowlett says:
"You could run heroku pg:psql to fire up a Postgres console, then issue \d to see all tables, and \d tablename to see details for a particular table."
You can also type select * from tablename; to view the table contents.
How to view current database schema for Heroku app in Terminal?
heroku db:pull to pull your production DB locally to take a peek in it.
I'll give the method for connecting via a GUI tool
Run the following command to get the database credentials from Heroku:
heroku pg:credentials DATABASE_URL
Then you can use a GUI tool like PG Commander or PGAdmin to connect to the db
Heroku now has an add-on named PostgreSQL Studio (currently free & in beta) that would let you access your database from within the browser, without having to use CLI, much like PHP MyAdmin.
To attach this add-on to your application,
heroku addons:create pgstudio
Then go to the list of add-ons on Heroku, select PostgreSQL Studio, authorize it, select the database to connect with from the dropdown list of all databases and it will take you to the web-based interface to handle your selected database.
You may refer to this official article on Heroku:
https://devcenter.heroku.com/articles/pgstudio
The easy answer is:
heroku pg:info
You can also download a client side Postgres, like Postico, and using the information provided in that URL to enter password and database name etc, then you can create locally, just like phpMyAdmin.
I use the admin_data gem, works well in Heroku.
You can use heroku dataclips that allows to run queries online. Here you can find documentation https://devcenter.heroku.com/articles/dataclips.
Connect to the database using Sequel Pro. You can find your ClearDB url using heroku config command. The structure for connecting is as follows:
CLEARDB_DATABASE_URL => mysql://[username]:[password]#[host]/[database name]?reconnect=true