devkinoti

Rails naming conventions

General Ruby conventions

Class names are CamelCase.

Methods and variables are snake_case.

Methods with a ? suffix will return a boolean.

devkinoti

# Doesn't work
	<p>
		<% case @request.author_hosted %>
		<% when "yes" %>
		The school <b>has</b> hosted an author before.
		<% when "no" %>
		The school <b>has not</b> hosted an author before.
		<% end %>
	</p>

devkinoti

How to seed a Rails database with a CSV file

1. Setup

First, Create a folder inside of lib called seeds

Put your CSV file example.csv into the lib/seeds folder. In the example below, the file is called real_estate_transactions.csv

Make sure you've created a resource with the appropriate columns to match your seed data. The names don't have to match up.

devkinoti

Web fonts are pretty much all the rage. Using a CDN for font libraries, like TypeKit or Google Fonts, will be a great solution for many projects. For others, this is not an option. Especially when you are creating a custom icon library for your project.

Rails and the asset pipeline are great tools, but Rails has yet to get caught up in the custom web font craze.

As with all things Rails, there is more then one way to skin this cat. There is the recommended way, and then there are the other ways.

The recommended way

Here I will show how to update your Rails project so that you can use the asset pipeline appropriately and resource your files using the common Rails convention.

devkinoti

sudo apt-get install python-software-properties
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:rwky/graphicsmagick
sudo apt-get update
sudo apt-get install graphicsmagick

devkinoti

def current?(key, path)
   "#{key}" if current_page? path
   # We use string interpolation "#{key}" here to access the CSS classes we are going to create.
end


in the views

<li>
  <%= link_to "Blog", posts_path, class: "#{current? "active", posts_path}"  %>

devkinoti

	def self.import(file)
		conn = ActiveRecord::Base.connection
		rc = conn.raw_connection
		rc.exec("COPY callers (your_attributes) FROM STDIN WITH CSV")

		file = File.open("#{file.path}", 'r')
		while !file.eof?
			rc.put_copy_data(file.readline)
		end

devkinoti

class SubdomainPresent
	def self.matches?(request)
		request.subdomain.present?
	end
end

class SubdomainBlank 
	def self.matches?(request)
		request.subdomain.blank?
	end

devkinoti

class TenantMiddleware < Apartment::Elevators::Subdomain 
	def call(*args)
		begin
			super
		rescue Apartment::TenantNotFound 
			Rails.logger.error "Error: Apartment Tenant Not found: #{Apartment::Tenant.current.inspect}"
			return [404, {"Content-Type" => "application/json"},["Error => Tenant not found"]]
		end
	end

devkinoti

# You can have Apartment route to the appropriate Tenant by adding some Rack middleware.
# Apartment can support many different "Elevators" that can take care of this routing to your data.
# Require whichever Elevator you're using below or none if you have a custom one.
#
# require 'apartment/elevators/generic'
# require 'apartment/elevators/domain'
require 'apartment/elevators/subdomain'
require 'rescued_apartment_middleware'

#