[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
I am not familiar with the syntax of Jquery plugin.
On Oct 12, 2:19 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi , I double checked on javascript's XOR operator and it only works with
bitwise: so you will have to write your own XOR . This isn't hard : [code]
if (!foo != !bar) [\code] should work for all elements.
or this
[code]if( ( foo !bar ) || ( !foo bar ) )[\code]
For the validator method I haven't actually tried to run this but you can
try this:[code]
$.validator.addMethod(
onlyCheckOne,
function(value, elements) {
// but put whatever you're using to see if either is checked
in the next line
return this.optional(value) || elements[o]:checked XOR
elements[1]:checked;
},
Please check either participations or days, but not both
)[/code] note change XOR to whatever method you decide to use.
Then add the check to your rules.
DED
On Mon, Oct 12, 2009 at 12:36 AM, Phper hi.steven...@gmail.com wrote:
script type=text/javascript src=http://code.jquery.com/jquery-
latest.js/script
script type=text/javascript src=http://dev.jquery.com/view/trunk/
plugins/validate/jquery.validate.js/script
script type=text/javascript
!--
$(document).ready(function() {
$(#form1).validate({
rules: {
title: {
required: true,
minlength:40
} ,
content: {
required: true,
minlength:100,
maxlength:600
},
evaluation: {
required: true,
minlength:50,
maxlength:300
},
price: {
required: true,
digits:true
},
multi:{
required:true
}
},
messages: {
}
});
});
--
/script
As you can see from the code above, title, content, evaluation,
prices and multi are required. All of them are required. But there
are additional two fields, which are participations and days. Only
one of them is required. Either participations or days is
required. How to write this code?
On Oct 12, 10:17 am, Phper hi.steven...@gmail.com wrote:
A good clue. But I still don't know where to write the if statement.
It would be good if you can give me an example.
On Oct 11, 10:57 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, if you are using the validation plugin, I believe it has a function
addMethod that allows you to write your own method for the
validation. It
requires a name (javascript identifier), a method to check input
against (
in your case A and B would be checked for completion) and a message to
display when there is an error (i.e. neither A nor B is filled out, or
both
are). You can get the details for using the addMethod function at the
jQuery Docs page.http://docs.jquery.com/Plugins/Validation
The page lists demos and the function you need is toward the bottom of
the
page.
The logic is fairly straight forward : when the form is being filled
out
listen for when A and B have focus, remember if either is checked or
ignored
and check to make sure both are not simultaneously filled out. Check
this on
submit as well.
Good luck,
DED
On Sun, Oct 11, 2009 at 7:42 AM, Phper hi.steven...@gmail.com wrote:
How can I write the code in the context of Jquery validate function?
On Oct 11, 12:43 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, javascript has an 'xor' operator. It works just like 'or' in an
'if'
statement except in 'xor' only one side can be true. In a normal
'or'
statement either side can be true or both can. So you probably want
to do
something like: if ( A XOR B) { } . Then only one can be true to
continue
if both are true the statement returns 'false'.Hope this helps.
DED
On Sat, Oct 10, 2009 at 10:37 PM, Phper hi.steven...@gmail.com
wrote:
There are two input fields in a form, but only one of them is
required, they are not required at the same time. Either A or B
is
required. ( A is required OR B is required). In other words, a
user
can input data to field A, or he can input data to filed B, but
he can
not input data to Both A and B at the same time.
How to implement this constraint in Jquery form validation?
[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
No, I can not use radio. At the help of a veteran programmer, I was
able to write the following code and it works.
script type=text/javascript src=http://code.jquery.com/jquery-
latest.js/script
script type=text/javascript src=http://dev.jquery.com/view/trunk/
plugins/validate/jquery.validate.js/script
script type=text/javascript
!--
$(document).ready(function() {
$(#form1).validate({
rules: {
participations: {
required: function() {
return $('#days').val() == '' ? true : false;
}
},
days: {
required: function() {
return $('#participations').val() =='' ? true: false;
}
},
title: {
required: true,
minlength:40
} ,
content: {
required: true,
minlength:100,
maxlength:600
},
evaluation: {
required: true,
minlength:50,
maxlength:300
},
price: {
required: true,
digits:true
},
multi:{
required:true
}
},
messages: {
}
});
});
--
/script
There is a minor problem.
I wanna change the default position of an alert message which is This
field is required. by default. How to do it?
On Oct 12, 2:54 pm, Don Dunbar salemd1s...@gmail.com wrote:
I thought of a much simpler solution. If possible could you use radio
buttons for those two choices in your HTML? In a radio button group
selecting one automatically deselects other buttons in the group. Then you
could just use one of the built in validation checks, as you already have
done, to make sure one is checked.DED
On Mon, Oct 12, 2009 at 1:43 AM, Phper hi.steven...@gmail.com wrote:
I am not familiar with the syntax of Jquery plugin.
On Oct 12, 2:19 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi , I double checked on javascript's XOR operator and it only works with
bitwise: so you will have to write your own XOR . This isn't hard :
[code]
if (!foo != !bar) [\code] should work for all elements.
or this
[code]if( ( foo !bar ) || ( !foo bar ) )[\code]
For the validator method I haven't actually tried to run this but you can
try this:[code]
$.validator.addMethod(
onlyCheckOne,
function(value, elements) {
// but put whatever you're using to see if either is checked
in the next line
return this.optional(value) || elements[o]:checked XOR
elements[1]:checked;
},
Please check either participations or days, but not both
)[/code] note change XOR to whatever method you decide to use.
Then add the check to your rules.
DED
On Mon, Oct 12, 2009 at 12:36 AM, Phper hi.steven...@gmail.com wrote:
script type=text/javascript src=http://code.jquery.com/jquery-
latest.js/script
script type=text/javascript src=http://dev.jquery.com/view/trunk/
plugins/validate/jquery.validate.js/script
script type=text/javascript
!--
$(document).ready(function() {
$(#form1).validate({
rules: {
title: {
required: true,
minlength:40
} ,
content: {
required: true,
minlength:100,
maxlength:600
},
evaluation: {
required: true,
minlength:50,
maxlength:300
},
price: {
required: true,
digits:true
},
multi:{
required:true
}
},
messages: {
}
});
});
--
/script
As you can see from the code above, title, content, evaluation,
prices and multi are required. All of them are required. But there
are additional two fields, which are participations and days. Only
one of them is required. Either participations or days is
required. How to write this code?
On Oct 12, 10:17 am, Phper hi.steven...@gmail.com wrote:
A good clue. But I still don't know where to write the if
statement.
It would be good if you can give me an example.
On Oct 11, 10:57 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, if you are using the validation plugin, I believe it has a
function
addMethod that allows you to write your own method for the
validation. It
requires a name (javascript identifier), a method to check input
against (
in your case A and B would be checked for completion) and a message
to
display when there is an error (i.e. neither A nor B is filled out,
or
both
are). You can get the details for using the addMethod function at
the
jQuery Docs
[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
How to change the default position of an error message in Jquey form
validation plugin?
On Oct 12, 4:33 pm, Gordon grj.mc...@googlemail.com wrote:
If you're using the Metadata plugin and inline rules:
input type=text id=a class={validate:{required:'#b:blank'}} /
input type=text id=b class={validate:{required:'#a:blank'}} /
I've not actually tested it but it should work.
On Oct 11, 4:37 am, Phper hi.steven...@gmail.com wrote:
There are two input fields in a form, but only one of them is
required, they are not required at the same time. Either A or B is
required. ( A is required OR B is required). In other words, a user
can input data to field A, or he can input data to filed B, but he can
not input data to Both A and B at the same time.
How to implement this constraint in Jquery form validation?
[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
Also, how to prevent a user filling out both fields?
On Oct 12, 4:48 pm, Phper hi.steven...@gmail.com wrote:
How to change the default position of an error message in Jquey form
validation plugin?
On Oct 12, 4:33 pm, Gordon grj.mc...@googlemail.com wrote:
If you're using the Metadata plugin and inline rules:
input type=text id=a class={validate:{required:'#b:blank'}} /
input type=text id=b class={validate:{required:'#a:blank'}} /
I've not actually tested it but it should work.
On Oct 11, 4:37 am, Phper hi.steven...@gmail.com wrote:
There are two input fields in a form, but only one of them is
required, they are not required at the same time. Either A or B is
required. ( A is required OR B is required). In other words, a user
can input data to field A, or he can input data to filed B, but he can
not input data to Both A and B at the same time.
How to implement this constraint in Jquery form validation?
[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
Also, how to prevent a user filling out both fields?
On Oct 12, 4:48 pm, Phper hi.steven...@gmail.com wrote:
How to change the default position of an error message in Jquey form
validation plugin?
On Oct 12, 4:33 pm, Gordon grj.mc...@googlemail.com wrote:
If you're using the Metadata plugin and inline rules:
input type=text id=a class={validate:{required:'#b:blank'}} /
input type=text id=b class={validate:{required:'#a:blank'}} /
I've not actually tested it but it should work.
On Oct 11, 4:37 am, Phper hi.steven...@gmail.com wrote:
There are two input fields in a form, but only one of them is
required, they are not required at the same time. Either A or B is
required. ( A is required OR B is required). In other words, a user
can input data to field A, or he can input data to filed B, but he can
not input data to Both A and B at the same time.
How to implement this constraint in Jquery form validation?
[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
How can I write the code in the context of Jquery validate function?
On Oct 11, 12:43 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, javascript has an 'xor' operator. It works just like 'or' in an 'if'
statement except in 'xor' only one side can be true. In a normal 'or'
statement either side can be true or both can. So you probably want to do
something like: if ( A XOR B) { } . Then only one can be true to continue
if both are true the statement returns 'false'.Hope this helps.
DED
On Sat, Oct 10, 2009 at 10:37 PM, Phper hi.steven...@gmail.com wrote:
There are two input fields in a form, but only one of them is
required, they are not required at the same time. Either A or B is
required. ( A is required OR B is required). In other words, a user
can input data to field A, or he can input data to filed B, but he can
not input data to Both A and B at the same time.
How to implement this constraint in Jquery form validation?
[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
A good clue. But I still don't know where to write the if statement.
It would be good if you can give me an example.
On Oct 11, 10:57 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, if you are using the validation plugin, I believe it has a function
addMethod that allows you to write your own method for the validation. It
requires a name (javascript identifier), a method to check input against (
in your case A and B would be checked for completion) and a message to
display when there is an error (i.e. neither A nor B is filled out, or both
are). You can get the details for using the addMethod function at the
jQuery Docs page.http://docs.jquery.com/Plugins/Validation
The page lists demos and the function you need is toward the bottom of the
page.
The logic is fairly straight forward : when the form is being filled out
listen for when A and B have focus, remember if either is checked or ignored
and check to make sure both are not simultaneously filled out. Check this on
submit as well.
Good luck,
DED
On Sun, Oct 11, 2009 at 7:42 AM, Phper hi.steven...@gmail.com wrote:
How can I write the code in the context of Jquery validate function?
On Oct 11, 12:43 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, javascript has an 'xor' operator. It works just like 'or' in an 'if'
statement except in 'xor' only one side can be true. In a normal 'or'
statement either side can be true or both can. So you probably want to do
something like: if ( A XOR B) { } . Then only one can be true to
continue
if both are true the statement returns 'false'.Hope this helps.
DED
On Sat, Oct 10, 2009 at 10:37 PM, Phper hi.steven...@gmail.com wrote:
There are two input fields in a form, but only one of them is
required, they are not required at the same time. Either A or B is
required. ( A is required OR B is required). In other words, a user
can input data to field A, or he can input data to filed B, but he can
not input data to Both A and B at the same time.
How to implement this constraint in Jquery form validation?
[jQuery] Re: Only one of two fields is required. How to implement this logic in Jquery form validation?
script type=text/javascript src=http://code.jquery.com/jquery-
latest.js/script
script type=text/javascript src=http://dev.jquery.com/view/trunk/
plugins/validate/jquery.validate.js/script
script type=text/javascript
!--
$(document).ready(function() {
$(#form1).validate({
rules: {
title: {
required: true,
minlength:40
} ,
content: {
required: true,
minlength:100,
maxlength:600
},
evaluation: {
required: true,
minlength:50,
maxlength:300
},
price: {
required: true,
digits:true
},
multi:{
required:true
}
},
messages: {
}
});
});
--
/script
As you can see from the code above, title, content, evaluation,
prices and multi are required. All of them are required. But there
are additional two fields, which are participations and days. Only
one of them is required. Either participations or days is
required. How to write this code?
On Oct 12, 10:17 am, Phper hi.steven...@gmail.com wrote:
A good clue. But I still don't know where to write the if statement.
It would be good if you can give me an example.
On Oct 11, 10:57 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, if you are using the validation plugin, I believe it has a function
addMethod that allows you to write your own method for the validation. It
requires a name (javascript identifier), a method to check input against (
in your case A and B would be checked for completion) and a message to
display when there is an error (i.e. neither A nor B is filled out, or both
are). You can get the details for using the addMethod function at the
jQuery Docs page.http://docs.jquery.com/Plugins/Validation
The page lists demos and the function you need is toward the bottom of the
page.
The logic is fairly straight forward : when the form is being filled out
listen for when A and B have focus, remember if either is checked or ignored
and check to make sure both are not simultaneously filled out. Check this on
submit as well.
Good luck,
DED
On Sun, Oct 11, 2009 at 7:42 AM, Phper hi.steven...@gmail.com wrote:
How can I write the code in the context of Jquery validate function?
On Oct 11, 12:43 pm, Don Dunbar salemd1s...@gmail.com wrote:
Hi, javascript has an 'xor' operator. It works just like 'or' in an 'if'
statement except in 'xor' only one side can be true. In a normal 'or'
statement either side can be true or both can. So you probably want to
do
something like: if ( A XOR B) { } . Then only one can be true to
continue
if both are true the statement returns 'false'.Hope this helps.
DED
On Sat, Oct 10, 2009 at 10:37 PM, Phper hi.steven...@gmail.com wrote:
There are two input fields in a form, but only one of them is
required, they are not required at the same time. Either A or B is
required. ( A is required OR B is required). In other words, a user
can input data to field A, or he can input data to filed B, but he can
not input data to Both A and B at the same time.
How to implement this constraint in Jquery form validation?
[jQuery] Why doesn't the following code work?
$(document).ready(function() {
$(#form1).validate({
rules: {
name: required,// simple rule, converted to
{required:true}
title,content, evaluation: {
required: true
}
},
messages: {
comment: Please enter a comment.
}
});
});
[jQuery] Only one of two fields is required. How to implement this logic in Jquery form validation?
There are two input fields in a form, but only one of them is required, they are not required at the same time. Either A or B is required. ( A is required OR B is required). In other words, a user can input data to field A, or he can input data to filed B, but he can not input data to Both A and B at the same time. How to implement this constraint in Jquery form validation?
