在Cakephp中使用具有HABTM关系的查找中的包含

Question

I have a HABTM relationship between Entities and Countries. The following find returns the data I want but I want to whittle it down to returning just the ticker field from entities:

$blap = $this->Entity->Country->find('first', array('conditions' => array('Country.id' => 78)));

So I added a contain like this:

$blap = $this->Entity->Country->find('first', array('conditions' => array('Country.id' => 78),'contain'=>'Entity.ticker));

but that had no effect.

I tried calling contain on the Entity model before calling the find like this:

$this->Entity->contain('ticker');
$blap = $this->Entity->Country->find('first', array('conditions' => array('Country.id' => 78)));

But that generated the following error message

27 contain 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'contain' at line 1 0 28 SELECT Country . id , Country . name , Country . hash FROM countries AS Country WHERE Country . id = 78 LIMIT 1 1 1 1 29 SELECT Entity . id , Entity . ticker , Entity . shares_outstanding , Entity . begin_fiscal_calendar , Entity . last_reported_quarter , Entity . next_report_date , Entity . obsolete_groups , Entity . actual_fiscal_year_end , Entity . full_name , Entity . depricated , Entity . obsolete_country_id , Entity . ticker2 , Entity . hash , CountriesEntity . id , CountriesEntity . country_id , CountriesEntity . entity_id , CountriesEntity . default_country FROM entities AS Entity JOIN countries_entities AS CountriesEntity ON ( CountriesEntity . country_id = 78 AND CountriesEntity . entity_id = Entity . id ) 32 32 1

As a backup plan I can write code to sift through the results in $blap and pull out the values I want but I thought that there would be some way to filter within the find command itself.

Answer 1

if you are calling find on Country model it is the one you should contain, like this: $this->Entity->Country->contain() .

Also, you can't put fields directly on the contain call. Try calling like this: $this->Entity->Country->contain(array('fields' => 'ticker')) .