gt; array(
		array('category_id', 1),
		'or' =&gt; array(
			array('category_id', 2),
		),
	),
));</code></pre>

					<p>In this example it will always return an array of instances of Model_Article.</p>

					<h3 id="find_chaining">Find using method chaining</h3>

					<p class="note">
						You can not call the <kbd>find()</kbd> method without properties, or call it with <kbd>null</kbd> or a variable
						that contains <kbd>null</kbd> as argument. If you do, <kbd>null</kbd> is returned. If you want to cha