php - Update document doesnt work right -


i using code below update mongodb document:

foreach($jarray $value){              $tablename = $value['tablename'];             $ean = $value["ean"];             $amount= $value["amount"];             $new_data = array(                 '$set' => array(                 'inventar' => array(                 array (                 'ean' => $ean,                 'amount' => $amount                 )                 )                 )             );                       $collection->update(array("tablename"=>$tablename), $new_data);             $response["update"] = 1;             echo json_encode($response);         }

the database looks executing code this:

{     "_id": {         "$id": "557daa73d8291bc6268b4578"     },     "inventar": [         {             "ean": "802.6180.222",             "amount": "0"         }     ],     "out_date": "15.05.2015",     "out_email": "email@email.com",     "out_user": "pb",     "tablename": "dd_aa" }

but inventar-part should contain more values.

the json send is:

[{"amount":"0","ean":"802.0079.127","tablename":"dd_aa"},{"amount":"40","ean":"802.6180.222","tablename":"dd_aa"}]

why second ean forgotten , not updated? structure right?

thank you

why second ean forgotten [...] ?

as suggested @gypsycoder in comment, using $push solve issue.

the reason $set create or replace field. but, $push create array field if not exists, , append item @ end of array.

so, given example, correct code should this:

        $new_data = array(             '$push' => array(                 'inventar' => array(                     'ean' => $ean,                     'amount' => $amount                 )             )         );            $collection->update(array("tablename"=>$tablename), $new_data);

please note, default $push push 1 item @ time. so, must not wrap item push in array. if need push several items part of same update statement, need wrap elements in array, passed argument $each modifier.


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