Add rule_priority field to fare leg rule schema

[mobilitydataio]

Context

rule_priority has been adopted for Fares v2 into the specification. The fare leg rule schema should be updated in the validator to include this optional field.

Commit Nº 1

AUTHOR × DATE

• Tzu-Jen Chan ( tzujenchanmbd )
• May 23, 2024 @ 03:01 AM ETC (07:01 AM UTC)

  MESSAGE

  
  [GTFS-Fares v2] Add rule_priority to fare_leg_rules.txt (#418)

• Add fare_leg_rules.rule_priority
• Adjust description for rule_priority
• Modify file description
• Modify filed descriptions
• Add a sentence to fare_leg_rule file desc Indicate fare_leg_rules handles empty in 2 ways
• Modify rule_priority description Add a sentence to establish a validator rule (concern: producers just adding the field header without knowing it will change the existing empty semantics)
• editorial updates
• editorial update
• Revised typo "arrival"
• Allow adding empty column to turn off empty-value semantics

  
  ## FILES CHANGED
  > ### https://github.com/google/transit/commit/d339c75488acae81cb88db62e3da480531f73782

https://github.com/google/transit/commit/d339c75488acae81cb88db62e3da480531f73782

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[emmambd]

@tzujenchanmbd Thanks for reviewing this beforehand to clarify there's no new validation rules needed! One thing to note though - even if there's no additional rules required, we should still add new fields to the fareLegRule schema. I'll update this issue to note this.

[emmambd]

@qcdyx We can test this by making sure that rule_priority doesn't trigger unknown_field once the rule is modified.

@tzujenchanmbd Know of any feeds with this field?

[tzujenchanmbd]

Here is a spreadsheet-based dataset from Ito: https://docs.google.com/spreadsheets/d/1IVzSzmlK4PIo92xMvzOrwnZQvIX7ss0-FzN9GhjvvQ8/edit?gid=1013801825#gid=1013801825

[qcdyx]

Does the validator produce a InvalidRulePriorityNotice if rule priority is less than 0? @tzujenchanmbd

[tzujenchanmbd]

rule_priority is a non-negative integer field. There should be a notice if the value is negative. Do we have an existing rule for non-negative values?

[qcdyx]

Yes, we already have checks for non-negative values, so no more new notices to be added.