I have now my rails 3.2.1 app running on Heroku.
I've tried to upload the database to mongohq via the heroku mongo:push command, after installing the heroku mongo plugin.
https://github.com/pedro/heroku-mongo-sync
I get the message asking me to confirm if I want to push, but once the push is done, there is nothing my db.
I'm not sure if it is a problem with heroku or if i'm missing a step.
Could it be that i need to put my app in production mode and migrate the database to production?
I'm not sure how to do that either.
Cheers
does your local heroku connection conform to the plugins assumptions [in the readme's config section]? if not you'll have to set it via:
export MONGO_URL = mongodb://user:pass#localhost:1234/db
i'll also note, that even after doing this i had to uninstall the heroku plugin and reinstall it from this fork: http://github.com/fjg/heroku-mongo-sync.git
heroku plugins:install http://github.com/fjg/heroku-mongo-sync.git
Check out the MongoSync Ruby Gem
It's a gem I wrote for that very purpose when I had to constantly copy my Local MongoDB database to and from my Production DB for a Project (I know it's stupid). It's extremely easy to use. Once you've entered your DB details in the mongo_sync.yml file, you can push and pull DBs using these rake tasks:
$ rake mongo_sync:push # Push DB to Remote
$ rake mongo_sync:pull # Pull DB to Local
Note: It's also available as shell script for non-ruby apps: mongo-sync
Related
I am learning ruby on rails and heroku.
I have some questions.
Could somebody help me?
After running heroku create, the terminal is somehow connected to the repository/project in heroku. After that the developer can see logs, access database, ect. But, how can I access via terminal my completed project,which is online already, in heroku without creating the same apps and upload it again to heroku?
How can access my pg database in heroku or offline?
I saw this and try to run heroku pg:psql. it gives me hidden-atoll-4790::DATABASE=> help I try \? to see pg command but I cannot use it.
I saw this link to see pg db offline. But why cannot I access /var/lib/postgresql/9.3/main directory ? it is said that I don't have permission eventhough my account is administrator account.
1.Run heroku run rails console
Run
$ heroku apps # to see all apps created by your account
$ heroku open # to open you current project in browser (run it form root of your project)
$ heroku pg:psql DATABASE_URL # to gain access to heroku postgresql terminal, here you can run SQL queries
Refer to
CLI and Heroku PG for more info
I'm learning Ruby on Rails, and having lots of difficulty setting up.
So I have created this new app, using 'rails new' command.
Modified a bit, and now on way to deploy it on heroku.
First try, it failed because heroku required the app to use postgresql rather than sqlite3, which was set as a default database.
So I downloaded and installed postgresql, and here is the where the trouble began.
After installing the postgres, I set up the path.
And then I was unable to run the app locally anymore.
In command, "rails server" command is not working anymore, showing all kinds of error not being able to load stuff.
It looks like this:
D:\ruby\appname>rails server
c:\RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/pg-0.17.1-x86-mingw32/lib/pg.rb:10:in 'require': cannot load such file --2.1/pg_ext <LoadError>
and another bunch of load error.
No need to mention deploying on heroku, it fails everytime.
After installing postgresql, I can't use any database related commands as it says "loaderror" everywhere.
I can't run the app locally, nor deploy on heroku.
How should I fix this database problem?
In development you can still use SQLite, and in production use Postgres.
It's not advisable forever to have that disparity, but it does mean you an make progress.
Remove any production settings in database.yml, but still include 'pg' in your Gemfile.
Heroku will automatically insert database settings for Postgres in production. Deploy and then run heroku run rake db:migrate to set up your database.
so i've successfully installed Harrys Prelauncher on Heroku (https://github.com/harrystech/prelaunchr)
and to export my collected emails into a csv i need to run this command (bundle exec rake prelaunchr:create_winner_csvs)
is there any way to run that command through pgadmin or some other program?
or is the only way for me to download my heroku database and run the command locally? also how and what would i need to do this?
i'm pretty new to rails and postgresql and would really appreciate if someone could help me out!
Because the rake task creates files locally you can't just run it on heroku via heroku run rake. You can however set up your local database.yml to connect to your heroku postgresql instance and run the rake task locally.
Run heroku pg:credentials to get the required database values.
Fill in the production environment of config/database.yml with the values you obtained from step 1 (for the value of 'database' in the yml file, use dbnmae from step 1)
Test your connection with RAILS_ENV=production rails db. This should drop you into a psql console.
Run the rake task. RAILS_ENV=production bundle exec rake prelaunchr:create_winner_csvs
The files will save locally in lib/assets as indicated by the documentation.
From within the directory of the project you can use
heroku run rake prelaunchr:create_winner_csvs
You should probably create a UI form in to your application.
On click on export CSV, it should run background job on heroku (Using delayed jobs).
heroku run rake prelaunchr:create_winner_csvs
Use send_data ruby method. To send your generated and dumped data file on to your browser.
Download the file on to your local system from running heroku instance.
Hope this will resolve your problem.
Cheers!!!
I ran into this problem recently while developing the Prelaunchr campaign for a client. Assuming you have a local version of your app and are using Postgres Copper in Heroku, you can "pull" your Heroku database down to your local machine, set that as your development database in database.yml, and run the rake task from your local app, which should now have the same database as your heroku version. Here is the command to pull the db (subbing out name_for_database & heroku_app_name with your own):
heroku pg:pull HEROKU_POSTGRESQL_COPPER_URL name_for_database --app heroku_app_name
Make sure to restart your local server to see the new database info populated.
After deploying an app of Heroku I am having trouble getting the database populated with some of the data I need there. I ran heroku rake db:populate and it did create the initial admin user, but failed to put the rest of the data in.
I am populating the database with files from my local disk. I suspect the problem is caused because it sees nothing in the directory listed in the sample_data.rake file, as it in on my hdd and not the server. How can I get around this?
I figure that I have to either host all the files and change the directory to the servers directory, or find a way around this. I would guess there is an easy way to move the database from my computer to heroku? I'm obviously pretty new to this.
Thanks!
heroku commands have changed. now it should be:
heroku run rake db:push
heroku pg:reset DATABASE
heroku run rake db:seed
also data from local database can be uploaded to heroku by installing taps gem and pushing data from local PostgreSQL db.
gem install taps
heroku db:push
If you have a clean local database (i.e. just the good stuff, no silly testing data), then you could try heroku db:push:
db:push [<database_url>] # push a local database into the app's remote database
And please remember to develop on PostgreSQL if you're going to use the Heroku shared or dedicated databases, using the same database and version (version 8.3 for shared, 9.0 for dedicated) in both your development and production environments will save you much pain, suffering, and confusion.
References:
How can I import my existing data to Heroku?
Import: Push to Heroku
I setup the development db, and push it to Heroku.
rake db:reset
rake db:seed
heroku rake db:push
If you are using the default PostgreSQL, another option is heroku pg:reset
heroku rake db:seed
I use the following in the seed.rb file:
require 'pathname'
RailsRoot = Pathname.new(RAILS_ROOT).expand_path
print "Loading data..."
fileData = File.read (RailsRoot + "db/data-file.csv")
How to deploy a Rails app using Mysql on heroku?
I find out that my app did not need Amazon RDS (Too expensive for a small app).
Here is my answer how to use Amazon RDS
Heroku help deploying Rails app that uses Mysql database
Include mysql2 gem in your gemfile:
gem 'mysql2'
Now, your choice can be: https://addons.heroku.com/cleardb add-ons. You can get upto 5mb free storage but you need to fill your credit card information for accessing it.
Steps for using clearDB add-ons are:
# add cleardb add-ons to your app
$ heroku addons:add cleardb:ignite
-----> Adding cleardb to sharp-mountain-4005... done, v18 (free)
# retrieve your database URL:
$ heroku config | grep CLEARDB_DATABASE_URL
CLEARDB_DATABASE_URL => mysql://adffdadf2341:adf4234#us-cdbr-east.cleardb.com/heroku_db?reconnect=true
# copy CLEARDB_DATABASE_URL config variable and set it to your DATABASE_URL config variable
$ heroku config:set DATABASE_URL='mysql://adffdadf2341:adf4234#us-cdbr-east.cleardb.com/heroku_db?reconnect=true'
Adding config vars:
DATABASE_URL => mysql2://adffd...b?reconnect=true
Restarting app... done, v61.
# NOTE: since we are using ```mysql2``` in our gemfile so replace mysql:// scheme in the CLEARDB_DATABASE_URL to mysql2://
$ heroku config:set DATABASE_URL='mysql2://adffdadf2341:adf4234#us-cdbr-east.cleardb.com/heroku_db?reconnect=true'
$ heroku config:set CLEARDB_DATABASE_URL='mysql2://adffdadf2341:adf4234#us-cdbr-east.cleardb.com/heroku_db?reconnect=true'
Please follow: https://devcenter.heroku.com/articles/cleardb for more information
Hope that can help you.
If you do a heroku db:push from your MySql data, it'll automatically get pushed into the heorku PostgreSQL database structure.
You can then do db:pulls and pull back into mysql. Taps provides this database magic.
It's really great -- I'd try it out first before trying to get RDS working.