Sha256: 1ab4f6d319e7b5243db560354c0ca200959227079ad40188b610d030849e9e68
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Versions: 16
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Stored size: 1.1 KB
Contents
class CompilableParameter
attr_reader :name, :type, :default_value
class CompilerArgumentError < ArgumentError; end
def initialize(option)
option = option.stringify_keys
@name = option['name']
@type = option['type']
@default_value = option['default']
end
def compile(provided_value)
value = provided_value.blank? ? default_value : provided_value
process(value)
end
private
def process(value)
case type
when 'raw'
value
when 'string'
as_string(value)
when 'number'
value.to_f.to_s
when 'date'
sql_cast(as_string(parse_time(value).strftime('%Y-%m-%d')), 'DATE')
when 'timestamp'
sql_cast(as_string(parse_time(value).utc.iso8601(3)), 'TIMESTAMP')
else
raise CompilerArgumentError, "Unknown parameter type #{type}"
end
end
def parse_time(value)
parsed = Chronic.parse(value)
return parsed if parsed
raise CompilerArgumentError, "Value #{value} is unparseable as time"
end
def as_string(raw)
"'#{raw.gsub(/'/, '\'\'')}'"
end
def sql_cast(value, type)
"(#{type} #{value})"
end
end
Version data entries
16 entries across 16 versions & 1 rubygems