Add .actions method for index as table

[ejholmes]

I've always wanted to be able to easily extend the default actions. This adds an actions method when using index as table.

Some examples:

# Works just like before
default_actions

# Same as above
actions

# Append some actions onto the end of the default actions
actions do |resource|
  auto_link resource
end

# Custom actions without the defaults.
actions :defaults => false do |resource|
  auto_link resource
end

Would love some feedback/suggestions.

[orlando]

👍 i just implemented something like this last week. it will be awesome to have it right build in.

[gregbell]

Hi @ejholmes,

This looks great - however we need some tests and documentation before we can merge this feature in.

The default actions are tested in the cucumber features at https://github.com/gregbell/active_admin/blob/master/features/index/index_as_table.feature#L83 and documentation can be found at https://github.com/gregbell/active_admin/blob/master/docs/3-index-pages/index-as-table.md

I'd be glad to merge this feature in (and I think there's support for it) if you could please update the pull request with these items.

[ejholmes]

Will do.

[ejholmes]

Added tests and updated the documentation!

[amoslanka]

Adding :only and :except on the actions method would be another nice addition. This could be:

actions only: :show
# or
actions except: :destroy do 
    link_to "Some other action"
end

[bartezic]

How i can add few custom actions to default actions?

actions do |tour|
  link_to "Clone", {:action => 'clone', :id => tour }, :method => :put
  link_to "Share", {:action => 'share', :id => tour }, :method => :put 
end

Now I can add correctly only one action.

[seanlinsley]

@bartezic answered your (reposted) question in #53.