Re: question on errors, how to handle
Mike Campbell wrote:
I want to be able to have a set of errors returned to an input page
such that I can spit out an error of a particular TYPE next to a
particular input, to indicate something in particular was wrong with
this particular field. I'm a bit lost on how to accomplish this.Take
your typical login screen consisting of user name and password. If
the login fails, I want the screen to be redrawn with errors that
pertain to the user name field next to the user name field, and the
errors associated with the password next to the password field.
(Ignoring formatting), if my login screen looked
like:---Login:
___Password:
_---...and
I typed in "foo9" in user name and nothing in password and given some
contrived validation rules which will be obvious from the example
below, I want something like the following to be
shown:---Login:
foo9* The user name must be over 8 characters long* The user
name must only consist of alphabetic characters.Password:
_* The password was left blank, it must be
provided.---Figuring
out all these conditions, constructing the ActionError class with the
ApplicationResources.properties key and adding the ActionErrors to the
request is pretty simple, but I'm lost on the "how to assign an error
to a particular input field" concept.Is this covered in the
example?Thanks. --
Mike Campbell Email: [EMAIL PROTECTED]
S1 Corporationvoice: 678.421.4641
Software Engineer fax: 678.421.4865
R D web: http://www.s1.com/
Black Knight
When you store an error in the ActionErrors collection, you have the
option to associate it with a particular field:
ActionErrors errors = new ActionErrors();
String username = formBean.getUsername();
String password = formBean.getPassword();
if ((username == null) || (username.length() 1)
errors.add(new ActionError("username",
"error.username.required"));
... and so on ...
Although the example app does not do so, you can utilize a recently
added feature of the html:errors tag to place the messages where you
want:
... prompt and field for the "username" field ...
html:errors property="username"/
... prompt and field for the "password" field ...
html:errors property="password"/
Craig McClanahan
RE: question on errors, how to handle
Title: RE: question on errors, how to handle Perfect Craig, thanks. I suspected there was something like this. When you store an error in the ActionErrors collection, you have the option to associate it with a particular field: ActionErrors errors = new ActionErrors(); String username = formBean.getUsername(); String password = formBean.getPassword(); if ((username == null) || (username.length() 1) errors.add(new ActionError(username, error.username.required)); ... and so on ... Although the example app does not do so, you can utilize a recently added feature of the html:errors tag to place the messages where you want: ... prompt and field for the username field ... html:errors property=username/ ... prompt and field for the password field ... html:errors property=password/ Craig McClanahan
RE: question on errors, how to handle
Craig,
Is there a way that only the error message(e.g., username is required) appears next to
the error field instead of the headings:
VALIDATION ERROR
You must correct the following error(s) before proceeding
also appearing with it. It will be good if the heading could be at the top of the page
and the actual message next to the culprit field.
-Nimmi
-Original Message-
From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 31, 2001 6:37 PM
To: [EMAIL PROTECTED]
Subject: Re: question on errors, how to handle
Mike Campbell wrote:
I want to be able to have a set of errors returned to an input page
such that I can spit out an error of a particular TYPE next to a
particular input, to indicate something in particular was wrong with
this particular field. I'm a bit lost on how to accomplish this.Take
your typical login screen consisting of user name and password. If
the login fails, I want the screen to be redrawn with errors that
pertain to the user name field next to the user name field, and the
errors associated with the password next to the password field.
(Ignoring formatting), if my login screen looked
like:---Login:
___Password:
_---...and
I typed in "foo9" in user name and nothing in password and given some
contrived validation rules which will be obvious from the example
below, I want something like the following to be
shown:---Login:
foo9* The user name must be over 8 characters long* The user
name must only consist of alphabetic characters.Password:
_* The password was left blank, it must be
provided.---Figuring
out all these conditions, constructing the ActionError class with the
ApplicationResources.properties key and adding the ActionErrors to the
request is pretty simple, but I'm lost on the "how to assign an error
to a particular input field" concept.Is this covered in the
example?Thanks. --
Mike Campbell Email: [EMAIL PROTECTED]
S1 Corporationvoice: 678.421.4641
Software Engineer fax: 678.421.4865
R D web: http://www.s1.com/
Black Knight
When you store an error in the ActionErrors collection, you have the
option to associate it with a particular field:
ActionErrors errors = new ActionErrors();
String username = formBean.getUsername();
String password = formBean.getPassword();
if ((username == null) || (username.length() 1)
errors.add(new ActionError("username",
"error.username.required"));
... and so on ...
Although the example app does not do so, you can utilize a recently
added feature of the html:errors tag to place the messages where you
want:
... prompt and field for the "username" field ...
html:errors property="username"/
... prompt and field for the "password" field ...
html:errors property="password"/
Craig McClanahan
Re: question on errors, how to handle
i posted a suite of tags for improved handling/dealing with ActionErrors
to the struts-dev list some time ago. maybe these would be of use
in some or all of these cases. feel free to pilfer...
they may require some tweaks to work with the current build of struts
(i haven't tested it since i submitted the code)
the jar file can be retrieved from:
http://anthrax.itfais.com/pub/struts-errtag.jar
e
Shamdasani Nimmi-ANS004 wrote:
Craig,
Is there a way that only the error message(e.g., username is required) appears next
to the error field instead of the headings:
VALIDATION ERROR
You must correct the following error(s) before proceeding
also appearing with it. It will be good if the heading could be at the top of the
page and the actual message next to the culprit field.
-Nimmi
-Original Message-
From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 31, 2001 6:37 PM
To: [EMAIL PROTECTED]
Subject: Re: question on errors, how to handle
Mike Campbell wrote:
I want to be able to have a set of errors returned to an input page
such that I can spit out an error of a particular TYPE next to a
particular input, to indicate something in particular was wrong with
this particular field. I'm a bit lost on how to accomplish this.Take
your typical login screen consisting of user name and password. If
the login fails, I want the screen to be redrawn with errors that
pertain to the user name field next to the user name field, and the
errors associated with the password next to the password field.
(Ignoring formatting), if my login screen looked
like:---Login:
___Password:
_---...and
I typed in "foo9" in user name and nothing in password and given some
contrived validation rules which will be obvious from the example
below, I want something like the following to be
shown:---Login:
foo9* The user name must be over 8 characters long* The user
name must only consist of alphabetic characters.Password:
_* The password was left blank, it must be
provided.---Figuring
out all these conditions, constructing the ActionError class with the
ApplicationResources.properties key and adding the ActionErrors to the
request is pretty simple, but I'm lost on the "how to assign an error
to a particular input field" concept.Is this covered in the
example?Thanks. --
Mike Campbell Email: [EMAIL PROTECTED]
S1 Corporationvoice: 678.421.4641
Software Engineer fax: 678.421.4865
R D web: http://www.s1.com/
Black Knight
When you store an error in the ActionErrors collection, you have the
option to associate it with a particular field:
ActionErrors errors = new ActionErrors();
String username = formBean.getUsername();
String password = formBean.getPassword();
if ((username == null) || (username.length() 1)
errors.add(new ActionError("username",
"error.username.required"));
... and so on ...
Although the example app does not do so, you can utilize a recently
added feature of the html:errors tag to place the messages where you
want:
... prompt and field for the "username" field ...
html:errors property="username"/
... prompt and field for the "password" field ...
html:errors property="password"/
Craig McClanahan
--
___
Elod Horvath ('e') / ITFAIS Records (http://www.itfais.com/)
