1.2 validation - may be blank, but if filled in must be a decimal
Hi all, I have some data that's optional, but if it's filled in it must be a decimal. Is there an easy way to do this with 1.2 validation? My current though is that I might create a custom validation rule, and from their if the field isn't blank then send it through to the built in validation code. Thanks Tim --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Cake PHP group. To post to this group, send email to cake-php@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/cake-php?hl=en -~--~~~~--~~--~--~---
Re: 1.2 validation - may be blank, but if filled in must be a decimal
In case anyone else wants to know how i've done it, it's as simple as
this
Model
var $validate = array(
'fieldName' = array('integer_optional' = array('rule' =
array('optionalInteger', 'fieldName')))
);
// NB: integer_optional is the key to look up the error message
function optionalInteger($data, $fieldName) {
if (strlen($data[$fieldName]) 0) {
return is_numeric($data);
}
return true;
}
I couldn't work out how to call an existing validation method (given
the 2 minutes I spent on it) so I just wrote my own since it was
trivial and quicker. I'm still interested to hear a better way to do
this, if one exists :)
Tim
On Mar 28, 8:56 pm, Tim W [EMAIL PROTECTED] wrote:
Hi all,
I have some data that's optional, but if it's filled in it must be a
decimal. Is there an easy way to do this with 1.2 validation? My
current though is that I might create a custom validation rule, and
from their if the field isn't blank then send it through to the built
in validation code.
Thanks
Tim
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups Cake
PHP group.
To post to this group, send email to cake-php@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/cake-php?hl=en
-~--~~~~--~~--~--~---
Re: 1.2 validation - may be blank, but if filled in must be a decimal
All validation entries have an `allowEmpty` parameter that says
whether the field must be filled in or not. An empty field will *not*
go through the validation rule itself and will be validated or failed
depending on the `allowEmpty` parameter (not to be confused with the
`required` parameter, which controls whether the field must be
*present* in the data).
To validate a decimal number you can use a callback, like you have, or
a regular expression. For example:
var $validate = array(
'field' = array(
'allowEmpty' = true,
'rule' = '/^[0-9]*\\.?[0-9]+$/',
'message' = 'This must be blank or a positive decimal number'
)
);
You could use a different regular expression to allow negative
numbers, enforce limits on the fraction digits, or allow scientific
notation as well.
For example, if you wanted a positive number with maximum 2 digits
after the decimal point then you'd use something like:
'/^[0-9]+(\\.[0-9]{,2})?$/'
On Mar 28, 8:12 am, Tim W [EMAIL PROTECTED] wrote:
In case anyone else wants to know how i've done it, it's as simple as
this
Model
var $validate = array(
'fieldName' = array('integer_optional' = array('rule' =
array('optionalInteger', 'fieldName')))
);
// NB: integer_optional is the key to look up the error message
function optionalInteger($data, $fieldName) {
if (strlen($data[$fieldName]) 0) {
return is_numeric($data);
}
return true;
}
I couldn't work out how to call an existing validation method (given
the 2 minutes I spent on it) so I just wrote my own since it was
trivial and quicker. I'm still interested to hear a better way to do
this, if one exists :)
Tim
On Mar 28, 8:56 pm, Tim W [EMAIL PROTECTED] wrote:
Hi all,
I have some data that's optional, but if it's filled in it must be a
decimal. Is there an easy way to do this with 1.2 validation? My
current though is that I might create a custom validation rule, and
from their if the field isn't blank then send it through to the built
in validation code.
Thanks
Tim
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups Cake
PHP group.
To post to this group, send email to cake-php@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/cake-php?hl=en
-~--~~~~--~~--~--~---
Re: 1.2 validation - may be blank, but if filled in must be a decimal
Ah that's even better, thank you grrigri, you've made my life a little
easier :-)
Tim
On Mar 28, 10:40 pm, grigri [EMAIL PROTECTED] wrote:
All validation entries have an `allowEmpty` parameter that says
whether the field must be filled in or not. An empty field will *not*
go through the validation rule itself and will be validated or failed
depending on the `allowEmpty` parameter (not to be confused with the
`required` parameter, which controls whether the field must be
*present* in the data).
To validate a decimal number you can use a callback, like you have, or
a regular expression. For example:
var $validate = array(
'field' = array(
'allowEmpty' = true,
'rule' = '/^[0-9]*\\.?[0-9]+$/',
'message' = 'This must be blank or a positive decimal number'
)
);
You could use a different regular expression to allow negative
numbers, enforce limits on the fraction digits, or allow scientific
notation as well.
For example, if you wanted a positive number with maximum 2 digits
after the decimal point then you'd use something like:
'/^[0-9]+(\\.[0-9]{,2})?$/'
On Mar 28, 8:12 am, Tim W [EMAIL PROTECTED] wrote:
In case anyone else wants to know how i've done it, it's as simple as
this
Model
var $validate = array(
'fieldName' = array('integer_optional' = array('rule' =
array('optionalInteger', 'fieldName')))
);
// NB: integer_optional is the key to look up the error message
function optionalInteger($data, $fieldName) {
if (strlen($data[$fieldName]) 0) {
return is_numeric($data);
}
return true;
}
I couldn't work out how to call an existing validation method (given
the 2 minutes I spent on it) so I just wrote my own since it was
trivial and quicker. I'm still interested to hear a better way to do
this, if one exists :)
Tim
On Mar 28, 8:56 pm, Tim W [EMAIL PROTECTED] wrote:
Hi all,
I have some data that's optional, but if it's filled in it must be a
decimal. Is there an easy way to do this with 1.2 validation? My
current though is that I might create a custom validation rule, and
from their if the field isn't blank then send it through to the built
in validation code.
Thanks
Tim
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups Cake
PHP group.
To post to this group, send email to cake-php@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/cake-php?hl=en
-~--~~~~--~~--~--~---
