we-promise/sure · error · ArgumentError

Start date (#{validated_start_date}) cannot be after end dat

Error message

Start date (#{validated_start_date}) cannot be after end date (#{validated_end_date})

What it means

Error "Start date (#{validated_start_date}) cannot be after end date (#{validated_end_date})" thrown in we-promise/sure.

Source

Thrown at app/models/provider/yahoo_finance.rb:650

    # ================================
    #           Validation
    # ================================


    def validate_date_range!(start_date, end_date)
      raise Error, "Start date cannot be after end date" if start_date > end_date
      raise Error, "Date range too large (max 5 years)" if end_date > start_date + 5.years
    end

    def validate_date_params!(start_date, end_date)
      # Validate presence and coerce to dates
      validated_start_date = validate_and_coerce_date!(start_date, "start_date")
      validated_end_date = validate_and_coerce_date!(end_date, "end_date")

      # Ensure start_date <= end_date
      if validated_start_date > validated_end_date
        error_msg = "Start date (#{validated_start_date}) cannot be after end date (#{validated_end_date})"
        raise ArgumentError, error_msg
      end

      # Ensure end_date is not in the future
      today = Date.current
      if validated_end_date > today
        error_msg = "End date (#{validated_end_date}) cannot be in the future"
        raise ArgumentError, error_msg
      end

      # Optional: Enforce max lookback window (configurable via constant)
      max_lookback = MAX_LOOKBACK_WINDOW.ago.to_date
      if validated_start_date < max_lookback
        error_msg = "Start date (#{validated_start_date}) exceeds maximum lookback window (#{max_lookback})"
        raise ArgumentError, error_msg
      end
    end

    def validate_and_coerce_date!(date_param, param_name)

View on GitHub (pinned to e69894adb9)

When it happens

Trigger: Thrown at app/models/provider/yahoo_finance.rb:650 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of we-promise/sure@e69894adb9 (2026-08-21). Data as JSON: /api/errors/20ffa799567dc359. Report an issue: GitHub.