bool relationLoaded(string $key) Determine if the given relation is loaded

int rawUpdate(array $attributes = array()) Run a raw update against the

mixed sum(string $column) Retrieve the sum of the values of a given column

Model dissociate()

Connection class Connection implements

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bool|int update(array $attributes = array()) Update the model in the database

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$this havingRaw(string $sql, array $bindings = array(), string $boolean = 'and')