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module DiscoApp::Concerns::CanBeLiquified
extend ActiveSupport::Concern
SPLIT_ARRAY_SEPARATOR = '@!@'
included do
# Return this model as a hash for use with `to_liquid`. Returns `as_json` by default but is provided here as a hook
# for potential overrides.
def as_liquid
as_json
end
# Render this model as a series of concatenated Liquid {%- assign -%} statements.
def to_liquid
as_liquid.map { |k, v| "{%- assign #{liquid_model_name}_#{k} = #{as_liquid_value(k, v)} -%}" }.join("\n")
end
# Method to allow override of the model name in Liquid. Useful for models
# residing in namespaces that would otherwise have very long prefixes.
def liquid_model_name
model_name.param_key
end
private
# Return given value as a string expression that will be evaluated in Liquid to result in the correct value type.
def as_liquid_value(key, value)
if value.is_a? Numeric or (!!value == value)
return value.to_s
end
if value.nil?
return 'nil'
end
if value.is_a? Array
return "'#{value.map { |e| (e.is_a? String) ? CGI::escapeHTML(e) : e }.join(SPLIT_ARRAY_SEPARATOR)}' | split: '#{SPLIT_ARRAY_SEPARATOR}'"
end
if value.is_a? String and key.end_with? '_html'
return "'#{value.to_s.gsub("'", "'")}'"
end
"'#{CGI::escapeHTML(value.to_s)}'"
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems