Sha256: 6b16366fab0cb7d01fdef6bb79d549978a5c3d63db508df4fb35479b21eb7586
Contents?: true
Size: 1.21 KB
Versions: 5
Compression:
Stored size: 1.21 KB
Contents
# Captures the intent of a model definition in a block. Usage:
# pc = ParameterCapture.new do |p|
# p.whatever :some_value
# p.another :one
# p.or_list [1, 2]
# p.or_range (1..2)
# end
# pc.parameters
# => {:whatever => :some_value, :another => :one, :or_list => [1,2], :or_range => (1..2)}
class ParameterCapture
def initialize(&block)
self.instance_eval &block
end
def parameters
@parameters ||= OpenStruct.new
end
# Exposes the set keys
def keys
self.parameters.table.keys
end
# can be used in a data_frame filter.
# @pc.filter(row) Using a Hash as a cast type for the filter.
def filter(row)
self.keys.each do |key|
value = self.parameters.send(key)
case value
when Array
return false unless value.include?(row[key])
when Range
return false unless value.include?(row[key])
else
return false unless value === row[key]
end
end
return true
end
def method_missing(key, *values, &block)
if self.parameters.table.keys.include?(key)
self.parameters.send(key)
elsif values.size == 1
self.parameters.table[key] = values.first
else
self.parameters.table[key] = values
end
end
end
Version data entries
5 entries across 5 versions & 2 rubygems