• when console is launched


• while at console prompt

How it should work?

See the output here. Simple, quick methods. T.me (current tenant), T.names (tenants in the DB), ...

Launch, ask for tenant selection, set

$ bin/rails c

Running via Spring preloader in process 11233

Loading development environment (Rails 5.1.5)

   (1.9ms)  SELECT "public"."tenants"."subdomain" FROM "public"."tenants" WHERE "public"."tenants"."deleted_at" IS NULL ORDER BY "public"."tenants"."created_at" DESC

Available tenants: {0=>"public", 1=>"local"}

Select tenant: 1

You are now Tenant 'local'



Frame number: 0/24

Switch tenant

[1] [my-project][development] pry(main)> T.ask

Available tenants: {0=>"public", 1=>"local"}

Select tenant: 0

You are now Tenant 'public'

=> nil

Switch again

[2] [my-project][development] pry(main)> T.ask

Available tenants: {0=>"public", 1=>"local"}

Select tenant: 1

You are now Tenant 'local'

=> nil

Current tenant

[3] [my-project][development] pry(main)> T.me

=> "local"

Tenant we can quickly switch to

[4] [my-project][development] pry(main)> T.hash

=> {0=>"public", 1=>"local"}

Tenant names

[5] [my-project][development] pry(main)> T.names

=> ["local"]

Is abc a tenant?

[6] [my-project][development] pry(main)> T.exists? 'abc'

=> false

Is local a tenant?

[7] [my-project][development] pry(main)> T.exists? 'local'

=> true

Put it inside <project-root>/.pryrc

# What is it?

#   => Helper methods for Apartment::Tenant gem

# How does it work?

#   * bin/rails console => auto-loads and asks to switch tenant

#   * T.ask             => anytime in console, to switch tenant from a list

#   * T.me              => same as Apartment::Tenant.current

#   * T.hash            => hash of tenants. Example: { 0 => "public", 1 => "tenant-a" }

#   * T.names           => array with all existing tenant names from DB

#   * T.exists?(arg)    => returns true/false if `arg` exists as tenant in DB

#   * T.switch!(arg)    => same as Apartment::Tenant.switch!

require "rubygems"



# convenience class

class T

  class << self

    # ['tenant1', 'tenant2', ...]

    def names

      @@names ||= Apartment.tenant_names.sort

    end



    # { 0 => 'public', 1 => 'tenant1', ...}

    def hash

      @@hash ||= { 0 => 'public' }.merge(

        (1..(T.names.length)).to_a

        .product(T.names)

        .to_h

      )

    end



    def switch! arg

      Apartment::Tenant.switch!(arg) if T.hash.value?(arg)

    end



    # current tenant

    def me

      Apartment::Tenant.current

    end



    def exists? arg

      T.names.include? arg

    end



    # ask to switch the tenant

    def ask

      WelcomeClass.select_tenant

    end

  end

end



# select tenant when entering console

class WelcomeClass

  def self.select_tenant

    puts "Available tenants: #{T.hash}"



    print "Select tenant: "

    tenant = gets.strip # ask which one?



    unless tenant.empty?

      # by name

      if T.exists?(tenant)

        T.switch!(tenant)



      # by index position

      # string has digit + tenant index present

      elsif tenant[/d/].present? && T.hash.key?(tenant.to_i)

        T.switch!(T.hash[tenant.to_i])



      # not found = no action

      else

        puts "Tenant not found in list '#{tenant}'"

      end

    end



    # announce current tenant

    puts "You are now Tenant '#{T.me}'"

  end

end



# run the code at `bin/rails console`

Pry.config.exec_string = WelcomeClass.select_tenant