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Versions: 13
Compression:
Stored size: 1.46 KB
Contents
class Card
class Format
module Nesting
# Formats can have subformats. Lineage can be retraced through "parent" format.
module Subformat
# note: while it is possible to have a subformat of a different class,
# the :format_class value takes precedence over :format.
def subformat subcard, opts={}
subcard = subformat_card subcard
opts = opts.merge(parent: self).reverse_merge(format_class: self.class)
self.class.new subcard, opts
end
def root
@root ||= parent ? parent.root : self
end
def depth
@depth ||= parent ? (parent.depth + 1) : 0
end
# is format's card the format of the main card on a page?
def main?
depth.zero?
end
# is format's card the format of the requested card?
# (can be different from main in certain formats, see override in HtmlFormat)
def focal?
depth.zero?
end
def field_subformat field
field = card.name.field(field) unless field.is_a?(Card)
subformat field
end
def inherit variable
variable = "@#{variable}" unless variable.to_s.start_with? "@"
instance_variable_get(variable) || parent&.inherit(variable)
end
private
def subformat_card subcard
return subcard if subcard.is_a? Card
Card.fetch subcard, new: {}
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems