we-promise/sure · error · ArgumentError

Start date (#{validated_start_date}) exceeds maximum lookbac

Error message

Start date (#{validated_start_date}) exceeds maximum lookback window (#{max_lookback})

What it means

Error "Start date (#{validated_start_date}) exceeds maximum lookback window (#{max_lookback})" thrown in we-promise/sure.

Source

Thrown at app/models/provider/yahoo_finance.rb:664

      # 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)
      # Check presence
      if date_param.blank?
        error_msg = "#{param_name} cannot be blank"
        raise ArgumentError, error_msg
      end

      # Try to coerce to date
      begin
        if date_param.respond_to?(:to_date)
          date_param.to_date
        else
          Date.parse(date_param.to_s)
        end
      rescue ArgumentError => e

View on GitHub (pinned to e69894adb9)

When it happens

Trigger: Thrown at app/models/provider/yahoo_finance.rb:664 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/b948706c3296e5ad. Report an issue: GitHub.