Class: Command::OgArgument

Inherits:
Argument show all
Defined in:
lib/command-set/og.rb

Instance Attribute Summary

Attributes inherited from Argument

#name

Instance Method Summary collapse

Methods inherited from Argument

#basis, #check_present, #consume, #consume_hash, #match_terms, #names, #omittable?, register, #required?, #subject_requirements

Constructor Details

#initialize(name, klass, find_by = "name", options = {}) ⇒ OgArgument

Returns a new instance of OgArgument.



7
8
9
10
11
12
 
# File 'lib/command-set/og.rb', line 7

def initialize(name, klass, find_by="name", options={})
  super(name)
  @klass = klass
  @key = find_by
  @options = options
end

Instance Method Details

#complete(prefix, subject) ⇒ Object 



14
15
16
17
 
# File 'lib/command-set/og.rb', line 14

def complete(prefix, subject)
  entities = @klass.find(@options.merge({:condition => ["#{@key} like ?", prefix + "%" ]}))
  return entities.map{|entity| entity.__send__(@key)}
end

#parse(subject, term) ⇒ Object

Raises:

  • (RuntimeError) 


38
39
40
41
42
 
# File 'lib/command-set/og.rb', line 38

def parse(subject, term)
  found = @klass.find(@options.merge({:condition => ["#{@key} = ?", term]}))
  raise RuntimeError, "Couldn't find item on parse!" if found.empty?
  found[0]
end

#validate(term, subject) ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/command-set/og.rb', line 19

def validate(term, subject)
  found = @klass.find(@options.merge({:condition => ["#{@key} = ?", term]}))
  if found.empty?
	#THINK! Is it a good idea to create missing items in the Argument?  
	#Should the Command's action have to do that?
	if(@options[:accept_missing])
	  return true
	elsif(@options[:create_missing])
	  new_attributes = @options[:default_values] || {} 
	  new_attributes.merge!( @key => term )
	  @klass.create_with(new_attributes)
	  return true
	else
	  return false
	end
  end
  return true
end