CakePHP UpdateAll Only Updating Last Entered Data - cakephp

Question

I have built an invoice system in my new CakePHP site and I am currently trying to build a function that will let me save the re-edited information back into the same records.
Below is the section of code I am working on,
$InvoiceDataVar = $this->data['Invoicedata'];
foreach ($InvoiceDataVar as $DataKey => $DataValue) {
$UpdateWork = $InvoiceDataVar[$DataKey]['workdes'];
debug($UpdateWork);
$this->Invoicedata->updateAll(
array('Invoicedata.workdes' => "'$UpdateWork'"),
array('Invoicedata.invoicejoblists_id' => $InvoiceID)
);
}
This is work $this->data holds,
'Invoicedata' => array(
(int) 0 => array(
'workdes' => 'test new update 1',
'price' => '500.00'
),
(int) 1 => array(
'workdes' => 'test new update 2',
'price' => '501.00'
),
(int) 2 => array(
'workdes' => 'test new update 3',
'price' => '503.00'
),
(int) 3 => array(
'workdes' => 'test new update 4',
'price' => '504.00'
),
(int) 4 => array(
'workdes' => 'test new update 5',
'price' => '505.00'
),
(int) 5 => array(
'workdes' => 'test new update 6',
'price' => '999.99'
)
)
These are of course just test data, but unless I am not understanding the UpdateAll function documentation which I have gone over many times, all this will do is update all the six fields with the last test input. Right now all the fields for the workdes contain, 'test new update 6'.
I should also say that there might not be all ways be six fields, there will always be at lest one, with a max (at this time) of 6 inputs to update.
I was thinking about loading the 'ID of the invoicedata table, which is an auto count number, where as the joblist_id is the same id in all the the fields being updated? This is my current line of thinking....
Any Help is most welcome.
Glenn.

Answer 1

It seems you are working with CakePHP 1.3
To udpate many records at once there is a shortcut way shown in documentation
First you need to include ids of Invoicedata model in the post data
'Invoicedata' => array(
(int) 0 => array(
'id' => 23, // include id of the record
'workdes' => 'test new update 1',
'price' => '500.00'
),
// other records
)
// then call save all function
$this->Invoicedata->saveAll($this->data['Invoicedata']);

Answer 2

Please, check: updateAll documentation you can see, that first parameter is $fields, which fields you wanto to update and their appropriate values, and second parameter is $conditions some restrictions which define scope of rows which will be changed. You have empty $conditions, so, all rows will be updated. Last values ( here you need to check source code of DataSource update method), but think that it produce some think like
UPDATE invoicedatas SET workdes = value1, price = value2, workdes = value3, price = value4 and etc
so last values will be used.
Your data arrays should contain id attribute, to update right records and for this you should use save or saveAll methods of Invoicedata model.