Magento addFieldToFilter: Two fields, match as OR, not AND

Question

I\'ve been stuck on this for the last few hours. I got it working by hacking a few lines in /lib/Varien/Data/Collection/Db.php, but I\'d rather use the proper s

Answer 1

I've got another way to add an or condition in the field:

->addFieldToFilter(
    array('title', 'content'),
    array(
        array('like'=>'%$titlesearchtext%'), 
        array('like'=>'%$contentsearchtext%')
    )
)

Answer 2

Here is my solution in Enterprise 1.11 (should work in CE 1.6):

    $collection->addFieldToFilter('max_item_count',
                    array(
                        array('gteq' => 10),
                        array('null' => true),
                    )
            )
            ->addFieldToFilter('max_item_price',
                    array(
                        array('gteq' => 9.99),
                        array('null' => true),
                    )
            )
            ->addFieldToFilter('max_item_weight',
                    array(
                        array('gteq' => 1.5),
                        array('null' => true),
                    )
            );

Which results in this SQL:

    SELECT `main_table`.*
    FROM `shipping_method_entity` AS `main_table`
    WHERE (((max_item_count >= 10) OR (max_item_count IS NULL)))
      AND (((max_item_price >= 9.99) OR (max_item_price IS NULL)))
      AND (((max_item_weight >= 1.5) OR (max_item_weight IS NULL)))

Answer 3

OR conditions can be generated like this:

$collection->addFieldToFilter(
    array('field_1', 'field_2', 'field_3'), // columns
    array( // conditions
        array( // conditions for field_1
            array('in' => array('text_1', 'text_2', 'text_3')),
            array('like' => '%text')
        ),
        array('eq' => 'exact'), // condition for field 2
        array('in' => array('val_1', 'val_2')) // condition for field 3
    )
);

This will generate an SQL WHERE condition something like:

... WHERE (
         (field_1 IN ('text_1', 'text_2', 'text_3') OR field_1 LIKE '%text')
      OR (field_2 = 'exact')
      OR (field_3 IN ('val_1', 'val_2'))
    )

Each nested array(<condition>) generates another set of parentheses for an OR condition.

Answer 4

Thanks Anda, your post has been a great help!! However the OR sentence didnt' quite work for me and I was getting an error: getCollection() "invalid argument supplied for foreach".

So this is what I ended with (notice the attribute being specified 3 times instead of 2 in this case):

  $collection->addFieldToFilter('attribute', array(  
    array('attribute'=>'my_field1','eq'=>'my_value1'),            
    array('attribute'=>'my_field2','eq'=>'my_value2') ));

addFieldToFilter first requires a field and then condition -> link.