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module Api
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#TODO: inherit from application controller after cleanup
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class BaseController < ActionController::Base
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before_filter :set_default_response_format
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def process_error hash = {}
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hash[:object] ||= get_resource || raise("Param 'object' was not defined")
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hash[:json_code] ||= :unprocessable_entity
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errors = if hash[:object].respond_to?(:errors)
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logger.info "Failed to save: #{hash[:object].errors.full_messages.join(", ")}"
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hash[:object].errors.full_messages
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else
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raise("Object has to respond to errors")
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end
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render :json => {"errors" => errors} , :status => hash[:json_code]
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end
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def get_resource
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instance_variable_get(:"@#{controller_name.singularize}")
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end
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def process_response condition, response = nil
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if condition
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response ||= get_resource
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respond_with response
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else
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process_error
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end
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end
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def request_from_katello_cli?
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request.headers['User-Agent'].to_s =~ /^katello-cli/
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end
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protected
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# searches for an object based on its name and assign it to an instance variable
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# required for models which implement the to_param method
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#
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# example:
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# @host = Host.find_by_name params[:id]
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def find_by_name
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not_found and return if (id = params[:id]).blank?
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obj = controller_name.singularize
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# determine if we are searching for a numerical id or plain name
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cond = "find_by_" + ((id =~ /^\d+$/ && (id=id.to_i)) ? "id" : "name")
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not_found and return unless eval("@#{obj} = #{obj.camelize}.#{cond}(id)")
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end
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def not_found(exception = nil)
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logger.debug "not found: #{exception}" if exception
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head :status => 404
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end
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def set_default_response_format
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request.format = :json if params[:format].nil?
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end
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end
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end
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