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Data Model Questions /

Moderators: martimiz, Sean, Ed, biapar, Willr, Ingo, swaiba

BulkLoader and has_many relations

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4 Posts   1890 Views


Community Member, 545 Posts

26 February 2011 at 10:12am

I'm just wondering how you define has_many relations using the BulkLoader.

I have a csv that contains UPC's, descriptions, etc for clothing items. I've set up one DataObject with all the common info for a product such as Name, Color etc. and a has_many relation to another DataObject that contains the UPC and Size. How do I ensure that has_many relations link correctly out of one csv.

Or Am I better off just importing into one table and trying to filter out duplicate style numbers in other interfaces in my app?


Community Member, 35 Posts

17 March 2011 at 7:50pm

Edited: 18/03/2011 9:32am

Did you make any progress with this?
I have a similar requirement.


Community Member, 545 Posts

18 March 2011 at 8:58am

Yeah I ended up just flipping the way I was thinking about it. I uploaded the CSV to a UPC bulkloader which would than create the individual items. I think My problem was I was thinking it heretically instead of as a two way relation. Because if each item has_many UPCs then each UPC has_one Item. Just means using a lot of dot notion to build the Item.

class ClothingCsvBulkLoader extends CsvBulkLoader {
	public $columnMap = array(
		"ClothingStyleNo" => "ClothingItem.ClothingStyleNo",
		"ClothingMasterID" => "ClothingItem.ClothingMasterID",
		"ClothingSize" => "ClothingItem.ClothingSize",
		"ClothingPrice" => "ClothingItem.ClothingPrice",
		"ClothingMSRP" => "ClothingItem.ClothingMSRP",
		"ClothingDescription" => "ClothingItem.ClothingDescription",
		"ClothingColor" => "ClothingItem.ClothingColor",
		"ClothingCollection" => "ClothingItem.ClothingCollection",
		"ClothingProductGroup" => "ClothingItem.ClothingProductGroup",
		"ClothingFabric" => "ClothingItem.ClothingFabric",
		"ClothingGarmentWeight" => "ClothingItem.ClothingGarmentWeight",
		"ClothingPackageWeight" => "ClothingItem.ClothingPackageWeight",
		"ClothingPackageType" => "ClothingItem.ClothingPackageType",
		"ClothingWashCare" => "ClothingItem.ClothingWashCare",
		"ClothingMade" => "ClothingItem.ClothingMade",
		"ClothingDesigned" => "ClothingItem.ClothingDesigned",
		"ClothingCollectionBook" => "ClothingItem.ClothingCollectionBook",
		//Define Folders
		"WebReadyFolderID" => "ClothingItem.WebReadyFolderID",
		"HiResFolderID" => "ClothingItem.HiResFolderID",
		"MarketingImageFolderID" => "ClothingItem.MarketingImageFolderID",
		"PackageImageFolderID" => "ClothingItem.PackageImageFolderID",
		// Define ClothingUPC Fields
		"UPC" => "UPC",
		"ItemID" => "ItemID",
		"Size" => "Size",
		"ItemStyleNo" => "ItemStyleNo"
   public $duplicateChecks = array(
      'UPC' => 'UPC'
   public $relationCallbacks = array(
      'ClothingItem.ClothingStyleNo' => array(
         'relationname' => 'ClothingItem',
         'callback' => 'getStyleByNumber'
   static function getStyleByNumber(&$obj, $val, $record) {
      $SQL_val = Convert::raw2sql($val);
      return DataObject::get_one(
         'ClothingItem', "ClothingStyleNo = '{$SQL_val}'"


Community Member, 35 Posts

18 March 2011 at 9:28am

Thanks for the update. This is good to know.

I was able to resolve my problem via directly populating the database ( its data from another SS database). The issue I had I resolved as follows