Class: HQMF2JS::Generator::ErbContext

Inherits:
OpenStruct
  • Object
show all
Defined in:
lib/generator/js.rb

Overview

Utility class used to supply a binding to Erb. Contains utility functions used by the erb templates that are used to generate code.

Instance Method Summary collapse

Constructor Details

#initialize(vars) ⇒ ErbContext

Create a new context Each entry is added as an accessor of the new Context

Parameters:

  • vars (Hash) —

    a hash of parameter names (String) and values (Object).



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# File 'lib/generator/js.rb', line 19

def initialize(vars)
  super(vars)
end

Instance Method Details

#conjunction_code_for(precondition) ⇒ Object 



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# File 'lib/generator/js.rb', line 149

def conjunction_code_for(precondition)
  precondition.conjunction_code_with_negation
end

#field_library_method(field_name) ⇒ Object 



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# File 'lib/generator/js.rb', line 49

def field_library_method(field_name)
  field_type = HQMF::DataCriteria::FIELDS[field_name][:field_type]
  if field_type == :value
    'filterEventsByField'
  elsif field_type == :timestamp
    'adjustBoundsForField'
  elsif field_type == :nested_timestamp
    'denormalizeEventsByLocation'
  end
end

#field_method(field_name) ⇒ Object 



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# File 'lib/generator/js.rb', line 45

def field_method(field_name)
  HQMF::DataCriteria::FIELDS[field_name][:coded_entry_method].to_s.camelize(:lower)
end

#get_binding ⇒ Binding

Get a binding that contains all the instance variables

Returns:

  • (Binding) 


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# File 'lib/generator/js.rb', line 25

def get_binding
  binding
end

#js_for_bounds(bounds) ⇒ Object 



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# File 'lib/generator/js.rb', line 92

def js_for_bounds(bounds)
  if (bounds.respond_to?(:low) && bounds.respond_to?(:high))
    "new IVL_PQ(#{js_for_value(bounds.low)}, #{js_for_value(bounds.high)})"
  else
    "#{js_for_value(bounds)}"
  end
end

#js_for_characteristic(criteria) ⇒ Object 



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# File 'lib/generator/js.rb', line 33

def js_for_characteristic(criteria)
  HQMF2JS::Generator.render_template('characteristic', {'criteria' => criteria})
end

#js_for_code_list(criteria) ⇒ Object 



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# File 'lib/generator/js.rb', line 130

def js_for_code_list(criteria)
  if criteria.inline_code_list
    criteria.inline_code_list.to_json
  elsif criteria.code_list_id.nil?
    "null"
  else
    "getCodes(\"#{criteria.code_list_id}\")"
  end
end

#js_for_date_bound(criteria) ⇒ Object 



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# File 'lib/generator/js.rb', line 100

def js_for_date_bound(criteria)
  bound = nil
  if criteria.effective_time
    if criteria.effective_time.high
      bound = criteria.effective_time.high
    elsif criteria.effective_time.low
      bound = criteria.effective_time.low
    end
  elsif criteria.temporal_references
    # this is a check for age against the measurement period
    measure_period_reference = criteria.temporal_references.select {|reference| reference.reference and reference.reference.id == HQMF::Document::MEASURE_PERIOD_ID}.first
    if (measure_period_reference)
      case measure_period_reference.type
      when 'SBS','SAS','EBS','EAS'
        return 'MeasurePeriod.low.asDate()'
      when 'SBE','SAE','EBE','EAE'
        return 'MeasurePeriod.high.asDate()'
      else
        raise "do not know how to get a date for this type"
      end
    end
  end
  
  if bound
    "#{js_for_value(bound)}.asDate()"
  else
    'MeasurePeriod.high.asDate()'
  end
end

#js_for_derived_data(criteria) ⇒ Object 



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# File 'lib/generator/js.rb', line 41

def js_for_derived_data(criteria)
  HQMF2JS::Generator.render_template('derived_data', {'criteria' => criteria})
end

#js_for_measure_period(measure_period) ⇒ Object 



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# File 'lib/generator/js.rb', line 29

def js_for_measure_period(measure_period)
  HQMF2JS::Generator.render_template('measure_period', {'measure_period' => measure_period})
end

#js_for_patient_data(criteria) ⇒ Object 



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# File 'lib/generator/js.rb', line 37

def js_for_patient_data(criteria)
  HQMF2JS::Generator.render_template('patient_data', {'criteria' => criteria})
end

#js_for_precondition(precondition, indent) ⇒ Object

Returns the JavaScript generated for a HQMF::Precondition



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# File 'lib/generator/js.rb', line 141

def js_for_precondition(precondition, indent)
  HQMF2JS::Generator.render_template('precondition', {'doc' => doc, 'precondition' => precondition, 'indent' => indent})
end

#js_for_value(value) ⇒ Object 



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# File 'lib/generator/js.rb', line 60

def js_for_value(value)
  if value
    if value.respond_to?(:derived?) && value.derived?
      value.expression
    else
      if value.type=='CD'
        if value.code_list_id
          "new CodeList(getCodes(\"#{value.code_list_id}\"))"
        else
          "new CD(\"#{value.code}\", \"#{value.system}\")"
        end
      elsif value.type=='PQ'
        if value.unit != nil
          "new PQ(#{value.value}, \"#{value.unit}\", #{value.inclusive?})"
        else
          "new PQ(#{value.value}, null, #{value.inclusive?})"
        end
      elsif value.type=='ANYNonNull'
        "new #{value.type}()"
      elsif value.respond_to?(:unit) && value.unit != nil
        "new #{value.type}(#{value.value}, \"#{value.unit}\", #{value.inclusive?})"
      elsif value.respond_to?(:inclusive?) and !value.inclusive?.nil?
        "new #{value.type}(\"#{value.value}\", null, #{value.inclusive?})"
      else
        "new #{value.type}(\"#{value.value}\")"
      end
    end
  else
    'null'
  end
end

#js_name(entity) ⇒ Object

Returns a Javascript compatable name based on an entity’s identifier



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# File 'lib/generator/js.rb', line 154

def js_name(entity)
  if !entity.id
    raise "No identifier for #{entity.to_json}"
  end
  entity.id.gsub(/\W/, '_')
end

#patient_api_method(criteria) ⇒ Object 



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# File 'lib/generator/js.rb', line 145

def patient_api_method(criteria)
  criteria.patient_api_function
end