GUIDES.md

Guides

Set Up Databases

sh db/setup.sh

sh db/setup_test_database.sh

Set Database Connection

Use the readwrite owner role for schema modifications.

This is not a superuser role, although it does have write capabilities.

The password is supplied from ~/.pgpass.

export DATABASE_URL="postgres://app:@localhost:5432/rideshare_development"

The app user cannot TRUNCATE tables.

Teardown Databases

This is mostly useful for testing the "setup" automation. You wouldn't want to do this normally because you'd lose your data.

sh db/teardown.sh

Generate Data

bin/rails db:reset

bin/rails data_generators:generate_all

Simulate App Activity

Start up the server in one terminal:

bin/rails server

In another terminal, run the script:

bin/rails simulate:app_activity

Or run it with a iteration count, for example 2 or more:

bin/rails simulate:app_activity[2]

Local Circle CI

Inspired by Issue #99 from @momer.

Using this configuration, Circle CI can use its configuration and run locally.

Currently there is this error: "invalid UTS mode"

brew install circleci

circleci local execute -c process.yml build # works

circleci local execute -c process.yml test # error

Scrub Database

cd db

sh scrubbing/scrubber.sh

PgBouncer Prepared Statements

• Configure pool_mode to be statement in the PgBouncer config file
• Disable Query Logs (unfortunately) (config/application.rb)
• Make sure Prepared Statements aren't disabled in config/database.yml
• Connect through port 6432 and confirm prepared statements work correctly