// get section info
$section = Model_Section::find()->where('id', $section_id)->get_one();
// module of section is specified in database
$module = $section->module;
// get the item through the model, that lives in a module
// desired result for example:
// $item = Blog\Model_Item::find()->where('id', $item_id)->get_one();
$item = $module\Model_Item::find()->where('id', $item_id)->get_one();
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