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Contents
module Netzke
class Column
def self.default_columns_for_widget(widget)
raise ArgumentError, "No data_class_name specified for widget #{widget.config[:name]}" if widget.config[:data_class_name].nil?
# layout = NetzkeLayout.create(:widget_name => widget.id_name, :items_class => self.name, :user_id => NetzkeLayout.user_id)
data_class = widget.config[:data_class_name].constantize
exposed_columns = normalize_columns(data_class.exposed_columns) # columns exposed from the data class
columns_from_config = widget.config[:columns] && normalize_columns(widget.config[:columns]) # columns specified in widget's config
if columns_from_config
# reverse-merge each column hash from config with each column hash from exposed_columns (columns from config have higher priority)
for c in columns_from_config
corresponding_exposed_column = exposed_columns.find{ |k| k[:name] == c[:name] }
c.reverse_merge!(corresponding_exposed_column) if corresponding_exposed_column
end
columns_for_create = columns_from_config
else
# we didn't have columns configured in widget's config, so, use the columns from the data class
columns_for_create = exposed_columns
end
res = []
for c in columns_for_create
# finally reverse-merge them with the defaults from the data_class
res << data_class.default_column_config(c)
end
res
end
protected
# like this: [:col1, {:name => :col2}, :col3] => [{:name => :col1}, {:name => :col2}, {:name => :col3}]
def self.normalize_columns(items)
items.map{|c| c.is_a?(Symbol) ? {:name => c} : c}
end
end
end
Version data entries
14 entries across 14 versions & 4 rubygems