function QuantData::generateDataSingle in Quant 7

Generate chart data for a singular data point across a time period

See also

quant_build_data()

1 call to QuantData::generateDataSingle()

QuantData::generateData in plugins/QuantData.inc

Generate the data

File

plugins/QuantData.inc, line 45

Class

QuantData

QuantData class used to process and format the data returned by the Quant query

Code

function generateDataSingle() {

  // Extract the days
  $days = $this->quant->days;

  // Extract the period
  $period = $this->quant->period;

  // Determine when the starting time is
  $start = is_array($period) ? $period[1] : time();

  // The date() format to use. We compare by month if there are more than 183 days.
  $format = $days > 183 ? QUANT_DATE_MONTH_FORMAT : QUANT_DATE_DAY_FORMAT;

  // Whether or not to jump by day or month
  $interval = $days > 183 ? 2629743 : 86400;

  // Possibly convert days to months
  $steps = $days > 183 ? $days / 30 : $days;

  // Extract the database field
  $field = $this->quant->field;

  // Create a new array that's preformatted with a key for
  // every single time period
  $dates = $this
    ->dates($start, $steps, $interval, $format);

  // Calculate the amount of occurrences per time period
  foreach ($this->result as $item) {
    if (isset($dates[date($format, $item->{$field})])) {
      $dates[date($format, $item->{$field})]++;
    }
  }

  // Set in ascending order
  $dates = array_reverse($dates);
  $this->data = $dates;
}