Users will be able to customize columns like in this example (click the “Customize” button)
- Create a custom action link in the controller’s ActiveScaffold configuration section
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| config.action_links.add 'column_configurator',:label => l(:active_scaffold, :config) |
- Create an AJAX form for all controller columns as checkboxes
- In the controller:
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| # Configs which columns to show
def column_configurator
@cols = active_scaffold_config.columns
@active_cols = active_scaffold_config.list.columns.map {|c| c.name}
@form_name = "custom_columns"
@checkboxes = generate_column_checkboxes(@cols, @active_cols, @form_name)
end |
- In the helper
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| # Generate checkboxes for defining AS columns by user
def generate_column_checkboxes(list, checklist, form_name)
ret = ""
for l in list
ret += "<span class='as_column_config_chekckbox'>"
ret += "<input id='#{form_name}_#{l.name}' name='#{form_name}[#{l.name}]' type='checkbox'"
ret += checklist.include?(l.name) ? " checked='checked' />" : "/>"
ret += l.label + "</span>"
end
ret
end |
- In the view
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|
<h3><%=h l(:active_scaffold, :custom_columns) %></h3>
<% remote_form_for @form_name,
:url => {:action => "column_configurator_form"},
:update => "departments-active-scaffold",
:after => "$('departments-table-loading-indicator').style.visibility = 'visible'",
:complete => "$('departments-table-loading-indicator').style.visibility = 'hidden'" do |f| %>
<br/><br/>
<%= @checkboxes %>
<div id="clear"></div>
<br/>
<%= submit_tag l(:active_scaffold, :custom_columns_save)%>
<% end %> |
- Filter the controller / ActiveScaffold to show the columns
Back in the controller add the following method:
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|
# update AS config
def column_configurator_form
redirect_to( :params => {:action => 'index', :controller => 'departments', :method => 'get', :c_columns => params[:custom_columns]} )
end |
- And finally add the filter for AS in the controller
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| before_filter :update_as_config
...
private
# configure AS based on parameters
def update_as_config
cc = params[:c_columns]
cc.each do |c|
c[1] == "0" ? active_scaffold_config.list.columns.exclude(c[0]) : active_scaffold_config.list.columns.add(c[0])
end unless cc.nil?
end |
- This style looks nice on our checkboxes
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| .as_column_config_chekckbox {
float: left;
min-width: 20%;
margin-bottom: .25em;
} |
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