public function UnitsEntity::isLinear in Units of Measurement 7.2

Whether this expression is linearly decomposable.

Return value

bool Whether this expression is linearly decomposable, i.e. its decomposition can be plugged in into another mathematical expression via multiplication without losing sense

Overrides UnitsMathematicalExpression::isLinear

2 calls to UnitsEntity::isLinear()

UnitsEntity::formatQuantity in includes/UnitsEntity.class.inc

Format a certain amount of quantity within this mathematical expression.

UnitsEntity::inverseDecompose in includes/UnitsEntity.class.inc

Create inverse decomposition mathematical expression.

File

includes/UnitsEntity.class.inc, line 154

Definition of UnitsEntity class.

Class

UnitsEntity

Units of measurement entity class.

Code

public function isLinear() {
  $result = db_select('units_mathematical_expression_postfix', 'e')
    ->fields('e', array(
    'value_string',
  ))
    ->condition('mathematical_expression_id', $this->decomposition_mathematical_expression_id)
    ->condition('type', UNITS_TOKEN_TYPE_CONSTANT)
    ->condition('value_string', UNITS_QUANTITY)
    ->execute();
  return $result
    ->rowCount() == 0;
}