The followings are the available columns in table 'common_previous_operation':
Inheritance: extends BaseActiveRecordVersioned
 /**
  * @dataProvider dataProvider_Search
  */
 public function testSearch_WithValidTerms_ReturnsExpectedResults($searchTerms, $numResults, $expectedKeys)
 {
     $commonpreviousop = new CommonPreviousOperation();
     $commonpreviousop->setAttributes($searchTerms);
     $commonpreviousopresults = $commonpreviousop->search();
     $commonpreviousopdata = $commonpreviousopresults->getData();
     $expectedResults = array();
     if (!empty($expectedKeys)) {
         foreach ($expectedKeys as $key) {
             $expectedResults[] = $this->commonpreviousops($key);
         }
     }
     $this->assertEquals($numResults, $commonpreviousopresults->getItemCount());
     $this->assertEquals($expectedResults, $commonpreviousopdata);
 }
    ?>
" />

					<div class="field-row row">
						<div class="<?php 
    echo $form->columns('label');
    ?>
">
							<label for="common_previous_operation">Common operations:</label>
						</div>
						<div class="<?php 
    echo $form->columns('field');
    ?>
">
							<?php 
    echo CHtml::dropDownList('common_previous_operation', '', CHtml::listData(CommonPreviousOperation::model()->findAll(array('order' => 'display_order asc')), 'id', 'name'), array('empty' => '- Select -'));
    ?>
						</div>
					</div>

					<div class="field-row row">
						<div class="<?php 
    echo $form->columns('label');
    ?>
">
							<label for="previous_operation">Operation:</label>
						</div>
						<div class="<?php 
    echo $form->columns('field');
    ?>
">