Class: Web::Action

Inherits:
Object show all
Defined in:
lib/web/action.rb

Overview

:nodoc:

Constant Summary collapse

@@all_actions = 
[]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(patterns = {}, &function) ⇒ Action

Returns a new instance of Action.



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# File 'lib/web/action.rb', line 4

def initialize patterns={}, &function
    @patterns = patterns
    @function = function || lambda{}
    @@all_actions.push self
end

Instance Attribute Details

#patterns ⇒ Object (readonly)

Returns the value of attribute patterns.



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# File 'lib/web/action.rb', line 3

def patterns
  @patterns
end

Class Method Details

.blank_action ⇒ Object 



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# File 'lib/web/action.rb', line 64

def Action.blank_action
    blank = Action.new
    @@all_actions.delete blank
    blank
end

.pick(cgi) ⇒ Object 



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# File 'lib/web/action.rb', line 52

def Action.pick( cgi )
    @@all_actions.find_all{ |action|
	action.applies? cgi
    }.sort{|a, b|
	a.applies?(cgi) <=> b.applies?(cgi)
    }.last ||
	@@all_actions.find{ |action| action.patterns == {} } ||
	blank_action

#	    (raise Web::Exception.new( "Could not locate action for #{ cgi.multiple_params.inspect }" ))
end

.run(options = {}) ⇒ Object 



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# File 'lib/web/action.rb', line 70

def Action.run options={}
           if options.kind_of? Hash
               Web.process(options){ |cgi|
                   pick(cgi).run(cgi)
               }
           elsif options.kind_of? Web::CGI
               pick(options).run(options)
               options.close
               options
           end
end

Instance Method Details

#applies?(cgi) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/web/action.rb', line 28

def applies? cgi
    relevance = 0;
    unmatched_terms = patterns.size;
    patterns.each{ |key, pattern|
	if pattern.kind_of? Regexp
	    if cgi.multiple_params[key].find{ |value| value =~ pattern }
		unmatched_terms = unmatched_terms - 1
		relevance += 1
	    end
	else
	    if cgi.multiple_params[key].find{ |value| value == pattern }
		unmatched_terms = unmatched_terms - 1
		relevance += 10
	    end
	end
    }
    if unmatched_terms == 0
	relevance
    else
	false
    end
end

#old_applies?(cgi) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/web/action.rb', line 14

def old_applies? cgi
    matches = false
    patterns.each{ |key, pattern|
	cgi.multiple_params[key].each{ |value|
	    if pattern.kind_of? Regexp
		matches = true if value =~ pattern
	    else
		matches = true if value == pattern
	    end
	}
    }
    matches
end

#run(cgi = Web::CGI.create) ⇒ Object 



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# File 'lib/web/action.rb', line 10

def run cgi=Web::CGI.create
    @function.call( cgi )
end