Add psych4 support

[schlumpfit]

• Psych 4 does not load aliases unless aliases: true is provided as an argument
• Workaround taken from rails: rails/rails@179d0a1

[olleolleolle]

I think this looks good.

[aminbs]

Hello will this PR be merged?

[spacemunkay]

While waiting for this to merge and release, one can meanwhile set the ldap_config to a proc in the Devise initializer:

#/config/initializers/devise.rb

Devise.setup do |config|
  config.ldap_config = Proc.new do
    YAML.load(ERB.new(File.read("#{Rails.root}/config/ldap.yml")).result, aliases: true)[Rails.env]
  end
end

See:

devise_ldap_authenticatable/lib/devise_ldap_authenticatable/ldap/connection.rb

Line 7 in 6ef2131

if ::Devise.ldap_config.is_a?(Proc)

[Matt7983]

While waiting for this to merge and release, one can meanwhile set the ldap_config to a proc in the Devise initializer:

#/config/initializers/devise.rb

Devise.setup do |config|
  config.ldap_config = Proc.new do
    YAML.load(ERB.new(File.read("#{Rails.root}/config/ldap.yml")).result, aliases: true)[Rails.env]
  end
end

See:

devise_ldap_authenticatable/lib/devise_ldap_authenticatable/ldap/connection.rb

Line 7 in 6ef2131

if ::Devise.ldap_config.is_a?(Proc)

Use the similar method, here's my ldap_config setting:
config.ldap_config = Proc.new() {YAML.unsafe_load(ERB.new(File.read("#{Rails.root}/config/ldap.yml")).result)[Rails.env]}

[Sinhyeok]

@schlumpfit

Hello, could you merge this PR?

[schlumpfit]

@Sinhyeok, I am not sure if I miss something, but it looks like I have no permission to merge and the repo seems unmaintained to me.

Sorry for the close and reopen, it was a mistake from my mobile.