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Contents
module Spider; module Model
# The ModelHash is a specialized hash for models. It is subclassed by Condition and Request.
# It provides two functions:
# * when given a BaseModel instance as a value, it will unwrap it setting its element-value pairs
# * if the key is a dotted string, will split it and create sub-hashes.
# Example:
# cat = Cat.new(:name => 'Kitty', :color => 'black')
# mh[:test] = cat
# => {:test => {:name => 'Kitty', :color => 'black}}
# mh['test.name'] = 'Devilish Kitty'
# => {:test => {:name => 'Devilish Kitty', :color => 'black'}}
class ModelHash < Hash
alias :modelhash_orig_set :[]= # :nodoc:
def initialize(hash=nil)
super()
merge!(hash) if (hash && hash.is_a?(Hash))
end
# Returns a new instance when needed by an assignement. May be overridden by subclasses.
def get_deep_obj
return self.class.new
end
def []=(key, val)
if (val.is_a?(BaseModel))
n = self.class.new
val.each_val do |el, v|
n[el] = v
end
val = n
end
key = key.name if key.is_a?(Element)
parts = key.to_s.split('.', 2)
return super(key.to_sym, val) unless parts[1]
parts[0] = parts[0].to_sym
self[parts[0]] = get_deep_obj unless self[parts[0]].is_a?(self.class)
self[parts[0]][parts[1]] = val
end
def [](key)
# TODO: deep
key = key.name if key.is_a?(Element)
super(key.to_sym)
end
end
end; end;
Version data entries
28 entries across 28 versions & 1 rubygems