Module: ZoomRangeConcern

Extended by:
ActiveSupport::Concern
Defined in:
app/controllers/concerns/zoom_range_concern.rb

Overview

ZoomRangeConcern

Handles chart zoom and column selection for filtering table data. When users zoom into a chart or click a chart column, this concern calculates the appropriate time boundaries for filtering the table while keeping the chart unchanged. Normalizes zoom times to hour/day boundaries based on the overall time range.

Instance Method Summary collapse

Instance Method Details

#setup_zoom_range(main_start_time, main_end_time) ⇒ Object 



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# File 'app/controllers/concerns/zoom_range_concern.rb', line 10

def setup_zoom_range(main_start_time, main_end_time)
  # Extract column selection parameter (but don't delete it yet - we need it for the view)
  selected_column_time = params[:selected_column_time]

  # Extract zoom parameters from params (this removes them from params)
  zoom_start = params.delete(:zoom_start_time)
  zoom_end = params.delete(:zoom_end_time)

  # Handle column selection with highest precedence for table filtering
  if selected_column_time
    column_start, column_end = normalize_column_time(selected_column_time.to_i, main_start_time, main_end_time)
    table_start_time = column_start
    table_end_time = column_end
    # Don't set zoom times for column selection - let chart show full range
    return [ zoom_start, zoom_end, table_start_time, table_end_time ]
  end

  # Normalize zoom times to beginning/end of day or hour like we do for main time range
  if zoom_start && zoom_end
    zoom_start, zoom_end = normalize_zoom_times(zoom_start.to_i, zoom_end.to_i)
  end

  # Calculate table times - use zoom if present, otherwise fallback to main times
  table_start_time = zoom_start || main_start_time
  table_end_time = zoom_end || main_end_time

  [ zoom_start, zoom_end, table_start_time, table_end_time ]
end