silverstripe-framework/javascript/UniqueFields.js

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JavaScript
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UniqueFormField = Class.create();
UniqueFormField.prototype = {
validate: function() {
// check that the value is not in use, and matches the pattern
var suggested = this.value;
if( this.restrictedValues[suggested] || suggested == null ) {
suggested = this.suggestNewValue();
statusMessage("Changed value to " + suggested + ". " + this.restrictedMessage);
this.value = suggested;
}
},
suggestNewValue: function() {
var parts = this.value.match( /(.*)(\d+)$/ );
var prefix = '';
var count = 1;
if( parts )
prefix = parts[1];
else
prefix = this.value;
if( prefix.charAt(prefix.length-1) != ' ' )
prefix = prefix + ' ';
var suggested = prefix + count;
while( this.restrictedValues[suggested] )
suggested = prefix + (++count);
return suggested;
}
}
UniqueTextField = Class.extend('UniqueFormField');
UniqueTextField.applyTo('input.UniqueTextField');
UniqueTextField.prototype = {
initialize: function() {
this.onblur = this.validate.bind(this);
}
}
UniqueRestrictedTextField = Class.extend('UniqueTextField');
UniqueRestrictedTextField.applyTo('input.UniqueRestrictedTextField');
UniqueRestrictedTextField.prototype = {
initialize: function() {
this.loadMessages();
if(this.loadRestrictedValues){ this.loadRestrictedValues()};
this.loadRestrictedChars();
this.onblur = this.validate.bind(this);
},
loadRestrictedChars: function() {
this.charRegex = new RegExp( $(this.id + '-restricted-chars').value, 'g' );
this.charReplacement = $(this.id + '-restricted-chars-replace').value;
this.trimRegex = new RegExp( '^[' + this.charReplacement + ']+|[' + this.charReplacement + ']+$', 'g' );
},
suggestNewValue: function( fromString ) {
var prefix = '';
var count = 1;
var suggested = fromString || this.value;
if( suggested.length == 0 ) {
suggested = $('Form_EditForm_Title').value.toLowerCase();
}
var escaped = suggested.replace(this.charRegex, this.charReplacement);
escaped = escaped.replace( this.trimRegex, '' );
// this.loadRestrictedValues is never called, i think someone missed a function..
if(this.restrictedValues){
if( !this.restrictedValues[escaped] )
return escaped;
}
var parts = escaped.match( /(.*)(\d+)$/ );
if( parts )
prefix = parts[1];
else
prefix = escaped;
if( prefix.charAt(prefix.length-1) != this.charReplacement )
prefix = prefix + this.charReplacement;
suggested = prefix;
suggested = suggested.replace( this.charRegex, this.charReplacement );
suggested = suggested.replace( this.trimRegex, '' );
if(this.restrictedValues){
while( this.restrictedValues[suggested] ) {
suggested = prefix + (++count);
suggested = suggested.replace( this.charRegex, this.charReplacement );
suggested = suggested.replace( this.trimRegex, '' );
}
}
return suggested;
},
validate: function() {
// check that the value is not in use, and matches the pattern
var suggested = this.value;
if(this.restrictedValues){
var suggestedValue = this.restrictedValues[suggested];
}
if( suggested == null || suggested.length == 0 || suggestedValue || suggested.match( this.charRegex ) ) {
var message;
if( suggested == null )
message = 'You will need to enter a new value for this field';
else if( suggested.length == 0 )
message = 'This field cannot be left empty';
else if( suggestedValue )
message = this.restrictedMessage;
else
message = this.charMessage;
suggested = this.suggestNewValue();
statusMessage("Changed value to " + suggested + ". " + message);
}
this.value = suggested;
},
loadMessages: function() {
this.restrictedMessage = $(this.id + '-restricted-message').value;
this.charMessage = $(this.id + '-restricted-chars-message').value;
}
}
RestrictedTextField = Class.create();
RestrictedTextField.applyTo('input.text.restricted');
RestrictedTextField.prototype = {
initialize: function() {
this.restrictedChars = $(this.id + '-restricted-chars').value;
// this.restrictedRegex = new RegExp( $(this.id.'-restricted-chars').value, 'g' );
},
onkeyup: function() {
var lastChar = this.value.charAt(this.value.length - 1);
for( var index = 0; index < this.restrictedChars.length; index++ ) {
if( lastChar == this.restrictedChars.charAt(index) ) {
alert( "The character '" + lastChar + "' cannot be used in this field" );
this.value = this.value.substring( 0, this.value.length - 1 );
}
}
}
}