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Contents
module PgGraph::Data
# Dimension of the node (corresponding kind shown in parenthesis):
#
# 0 A single value (:value)
# 1 A single record (:record)
# 2 A map from id to record (:table)
# 3 A map from id to array of duplicate records (:table)
#
# The dimension defines class and structures of GraphData objects
#
class Dimension
def self.valid?(dimension, min: 0)
dimension.is_a?(Integer) && (min..3).include?(dimension)
end
def self.kind(dimension)
case dimension
when 0; :value
when 1; :record
when 2, 3; :table
end
end
def self.field_class(dimension)
validate(dimension)
case dimension
when 0; Column
when 1; RecordField
when 2; TableField
when 3; MmTableField
end
end
def self.value_class(dimension)
validate(dimension, min: 1)
case dimension
when 1; RecordValue
when 2; TableValue
when 3; MmTableValue
end
end
def self.validate(dim, min: 0, unwind: 1)
constrain dim, Integer, unwind: unwind
constrain dim,
lambda { |d| Dimension.valid?(d, min: min) },
"Out of range value: #{dim}",
unwind: unwind
end
end
end
Version data entries
26 entries across 26 versions & 1 rubygems