Sunday, July 26, 2009

Re: Edit record validation versus New record validation (Solved)

isUnique also works for edit!!!
it does check on "id != ownId" automatically...


On 25 Jul., 23:20, Rick <will...@gmail.com> wrote:
> Found my own answer/solution with this custom validator.  I put this
> in my app_model and then can use it from any model.  You use it as a
> rule as you would any core validator:
>
> [code]
>    var $validate = array(
>        'partnumber' => array(
>           'rule1' => 'validateUniqueness',
>           'message' => 'This part number is not unique')
>        )
> [/code]
>
> And the code is:
>
> [code]
>         /**
>          * Fails if given value for field is not unique for that field in the
> table.
>          *
>          * @param <type> $fieldData - array(fieldname => fieldvalue)
>          * @return <type> - true if unique.
>          */
>         function validateUniqueness($fieldData) {
>                 $fields = array_keys($fieldData);
>                 $fieldName = $fields[0];
>
>                 $values = array_values($fieldData);
>                 $fieldValue = $values[0];
>
>                 // To determine whether we are going to insert (new) or update
> (edit)
>                 // get the current row ID.  If empty then this is a new record
>                 // if not then it is an edit record.
>
>                 // If this is an edit then exclude the currentRow (the one we are
>                 // editing) from the uniqueness test by adding a condition.
>
>                 $currentID = $this->getID();
>                 if (!empty($currentID) or $currentID = 0) {
>                         $rowID = $this->data[$this->name][$this->primaryKey];
>                         $condition = ' AND ' . $this->name . '.' . "$this->primaryKey !=
> '$rowID'";
>                 } else {
>                         $condition = '';
>                 }
>
>                 if ($this->findCount("$fieldName = '$fieldValue' $condition", -1) >
> 0) {
>                         return false;
>                 } else {
>                         return true;
>                 }
>         }
> [/code]
>
> Rick
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