hi,

class Program extends DataObject {

...

static $has_one = array(
	'Acount' => 'Account'
    );

static $belongs_many_many = array(
        'Categories' => 'CategoryPage',
    );

 static $searchable_fields = array (
        'program_id' => array(
	    'title' => 'Program ID',
	    'field' => 'NumericField',
	    'filter' => 'PartialMatchFilter'
	),
        'name' => array('title'=>'Programmname'),
	'URLSegment' => array('title'=>'URL Segment'),
        'description' => array('title'=>'Beschreibung'),

	'Categories.ID' => array('title' => 'Kategorie'),
	'Account.ID' => array('title'=>'Account')
    );

I have some problems with the 2 last entries in searchable_fields. For the categories I get dropdownfield with all Categories, but if I perform a search it results in an sql error. It only works if I use "Categories.Name", but then I get a textfield instead a dropdown.

Error: "Couldn't run query: SELECT DISTINCT count(*) FROM "Program" INNER JOIN "CategoryPage_Programs" AS "CategoryPage_Programs" 
ON "CategoryPage_Programs"."ProgramID" = "Program"."ID" LEFT JOIN "SiteTree" AS "SiteTree" 
ON "CategoryPage_Programs"."CategoryPageID" = "SiteTree"."ID" WHERE ("CategoryPage"."ID" IN ('21')) 
Unknown column 'CategoryPage.ID' in 'where clause'" at line 525 of /var/www/xxx/sapphire/core/model/MySQLDatabase.php

And the "Account.ID" also returns a dropdown as expectet, but the dropdown shows me only the IDs instead of the Account Names.

Whats wrong here?

thx

instead of 'Categories.ID' => array('title' => 'Kategorie') you have to use 'CategoriesID' => array('title' => 'Kategorie')
I think

no sorry, this results in

[User Error] Uncaught Exception: Unable to traverse to related object field [CategoriesID] on [Program]

Oh, sorry, I was should have read your post more carefully, i thought you have a has_many relation, in fact it seems that it is a many_many.
nvm what I said then.

I never did filtering on a many_many but actually I will run into that problem tomorrow or maybe on Monday, I will post again after I had my try on it.

hi zauberfisch,

thank you, waiting for your results on that :-)

Any luck on this issue, I'm having the same problem. Both with a has_one and a has_many relationship.

hello, sorry that it is taking me that long, i still have the problem, and i still want to find a way, but it needs to wait for I have a couple of other things with higher priority.

filtering on a has_one is really simple, here an example class:

class Hotel extends DataObject {
static $db = array(
'Title' => 'Text'
);
static $has_one = array(
'State' => 'State'
);
static $searchable_fields = array(
'Title' => array('title' => 'Name'),
'StateID' => array(
'title'=>'State Name'
)
);
}

I have hacked up getSearchQuery($searchCriteria) in my ModelAdmin_CollectionController to handle custom search requirements. I sometimes need to add/modify the fields in the DataObject's scaffoldSearchFields() as well. It's not perfect, but it's not that bad and gets the job done easily.

e.g.

function getSearchQuery($searchCriteria) {
	$query = parent::getSearchQuery($searchCriteria);
	if ($this->modelClass == 'MyDataObject'){
		$query->where[] = 'EXISTS (SELECT 1 FROM SomeTable st'
				.' WHERE MyDataObject.ID = st.MyDataObjectID'
				.' AND st.Field='.$searchCriteria['MyFieldFromSearchFormFields'].')';
	}
	return $query;
}