Class: Tiler::Widgets::MeterQuery

Inherits:
Query::Base show all
Defined in:
lib/tiler/widgets/meter.rb

Constant Summary collapse

ALLOWED_AGG = 
%w[avg sum max min last].freeze

Constants inherited from Query::Base

Query::Base::SAFE_COLUMN_RE

Instance Attribute Summary

Attributes inherited from Query::Base

#config, #panel, #source

Instance Method Summary collapse

Methods inherited from Query::Base

#initialize

Constructor Details

This class inherits a constructor from Tiler::Query::Base

Instance Method Details

#call ⇒ Object 



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# File 'lib/tiler/widgets/meter.rb', line 9

def call
  col = config["value_column"]
  agg_raw = (config["aggregation"].presence || "last").to_s
  agg = ALLOWED_AGG.include?(agg_raw) ? agg_raw : "last"
  min = numeric(config["min"], 0)
  max = numeric(config["max"], nil)
  prefix = config["prefix"]
  suffix = config["suffix"]

  raw = col.present? ? aggregate(base_scope, col, agg) : nil
  clamped = clamp(raw, min, max)

  {
    value:        clamped,
    min:          min,
    max:          max,
    prefix:       prefix,
    suffix:       suffix,
    value_column: col,
    color:        sanitize_color(config["color"])
  }
end