This class handles operands that are property attributes. They are addressed by attribute ID and scenario index. The expression provides the property reference.
To evaluate a property attribute we use the Query mechanism to retrieve the value.
# File lib/taskjuggler/LogicalOperation.rb, line 191 def eval(expr) query = expr.query query.scenarioIdx = @scenario.sequenceNo - 1 query.attributeId = @operand1 query.process # The logical expressions are mostly about comparing values. So we use # the sortableResult of the Query. This creates some challenges for load # values, as the user is not accustomed to the internal representation # of those. # Convert nil results into empty Strings if necessary query.result || '' end
Dumps the LogicalOperation as String. If query is nil, the variable names are shown, otherwise their values.
# File lib/taskjuggler/LogicalOperation.rb, line 206 def to_s(query) if query query.process query.to_s else "#{@scenario.fullId}.#{@operand1}" end end
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