public function test_getNumUsableCustomVariables_ShouldReturnMinVariables_IfOneTableHasLessEntriesThanOthers()
{
$this->assertEquals(5, CustomVariables::getNumUsableCustomVariables());
$scopes = Model::getScopes();
// removing custom vars step by step... as soon as one custom var is removed,
// it should return the min count of available variables
for ($i = 4; $i != -1; $i--) {
foreach ($scopes as $scope) {
$this->dropCustomVar($scope);
$this->assertSame($i, CustomVariables::getNumUsableCustomVariables());
}
}
$this->assertEquals(0, CustomVariables::getNumUsableCustomVariables());
// add custom var, only once all custom vars are written it should write return a higher custom var number
for ($i = 1; $i != 7; $i++) {
foreach ($scopes as $index => $scope) {
$isLastIndex = $index === count($scopes) - 1;
$this->addCustomVar($scope);
if ($isLastIndex) {
$this->assertSame($i, CustomVariables::getNumUsableCustomVariables());
// all scopes have been added, it should consider all custom var counts
} else {
$this->assertSame($i - 1, CustomVariables::getNumUsableCustomVariables());
// at least one scope is not added and should therefore return the old custom var count until all
// tables have been updated
}
}
}
$this->assertEquals(6, CustomVariables::getNumUsableCustomVariables());
}
private function setUpCustomVars()
{
foreach (Model::getScopes() as $scope) {
$model = new Model($scope);
$model->addCustomVariable();
$model->addCustomVariable();
$model->addCustomVariable();
}
}
private function hasEverywhereSameAmountOfVariables()
{
$indexesBefore = null;
foreach (Model::getScopes() as $scope) {
$model = new Model($scope);
$indexes = $model->getCustomVarIndexes();
if (is_null($indexesBefore)) {
$indexesBefore = $indexes;
} elseif ($indexes != $indexesBefore) {
return false;
}
}
return true;
}
public static function getMaxCustomVariables()
{
$cache = Cache::getCacheGeneral();
$cacheKey = 'CustomVariables.MaxNumCustomVariables';
if (!array_key_exists($cacheKey, $cache)) {
$maxCustomVar = 0;
foreach (Model::getScopes() as $scope) {
$model = new Model($scope);
$highestIndex = $model->getHighestCustomVarIndex();
if ($highestIndex > $maxCustomVar) {
$maxCustomVar = $highestIndex;
}
}
$cache[$cacheKey] = $maxCustomVar;
Cache::setCacheGeneral($cache);
}
return $cache[$cacheKey];
}
/**
* Returns the number of available custom variables that can be used.
*
* "Can be used" is identifed by the minimum number of available custom variables across all relevant tables. Eg
* if there are 6 custom variables installed in log_visit but only 5 in log_conversion, we consider only 5 custom
* variables as usable.
* @return int
*/
public static function getNumUsableCustomVariables()
{
$cache = Cache::getCacheGeneral();
$cacheKey = 'CustomVariables.NumUsableCustomVariables';
if (!array_key_exists($cacheKey, $cache)) {
$minCustomVar = null;
foreach (Model::getScopes() as $scope) {
$model = new Model($scope);
$highestIndex = $model->getHighestCustomVarIndex();
if (!isset($minCustomVar)) {
$minCustomVar = $highestIndex;
}
if ($highestIndex < $minCustomVar) {
$minCustomVar = $highestIndex;
}
}
if (!isset($minCustomVar)) {
$minCustomVar = 0;
}
$cache[$cacheKey] = $minCustomVar;
Cache::setCacheGeneral($cache);
}
return $cache[$cacheKey];
}
public function testGetAllScopes()
{
$this->assertEquals(self::$cvarScopes, Model::getScopes());
}
private function getNumberOfChangesToPerform($numVarsToSet)
{
$numChangesToPerform = 0;
foreach (Model::getScopes() as $scope) {
$model = new Model($scope);
$numCurrentCustomVars = $model->getCurrentNumCustomVars();
$numChangesToPerform += $this->getAbsoluteDifference($numCurrentCustomVars, $numVarsToSet);
}
return $numChangesToPerform;
}
public function testGetAllScopes()
{
$this->assertEquals(array('log_link_visit_action', 'log_visit', 'log_conversion'), Model::getScopes());
}
