Validations in Php can be applied in two manners first one is writing the validation function for particular textbox or checkbox or whatever it may the content under the form i.e. is
<form>..</form> in that page only between the scripting tags <script>..</script> that again between the head tags <head>..</head>.
Another way in Validations in Php writing the entire script in one page and saving with .js file and that .js file included in particular page where validations is needed. The include file is written as .
In some cases we use two methods mentioned above. Besides to these Validations in Php decreases the maximum number of errors, decreases burden to the server and saves us from hanging of the pages. Below I am displaying the Validations code, save them in .js file and include that .js file where you need as I mention in the above paragraph how to include that.
function Validator(formname)
{
this.formobj=document.forms[formname];
if(!this.formobj)
{
alert("Error: couldnot get Form object "+formname);
return;
}
if(this.formobj.onsubmit)
{
this.formobj.old_onsubmit = this.formobj.onsubmit;
this.formobj.onsubmit=null;
}
else
{
this.formobj.old_onsubmit = null;
}
this.formobj._sfm_form_name=formname;
this.formobj.onsubmit=form_submit_handler;
this.addValidation = add_validation;
this.setAddnlValidationFunction=set_addnl_vfunction;
this.clearAllValidations = clear_all_validations;
this.disable_validations = false;//new
document.error_disp_handler = new sfm_ErrorDisplayHandler();
this.EnableOnPageErrorDisplay=validator_enable_OPED;
this.EnableOnPageErrorDisplaySingleBox=validator_enable_OPED_SB;
this.show_errors_together=true;
this.EnableMsgsTogether=sfm_enable_show_msgs_together;
}
function set_addnl_vfunction(functionname)
{
this.formobj.addnlvalidation = functionname;
}
function sfm_enable_show_msgs_together()
{
this.show_errors_together=true;
this.formobj.show_errors_together=true;
}
function clear_all_validations()
{
for(var itr=0;itr < this.formobj.elements.length;itr++)
{
this.formobj.elements[itr].validationset = null;
}
}
function form_submit_handler()
{
var bRet = true;
document.error_disp_handler.clear_msgs();
for(var itr=0;itr < this.elements.length;itr++)
{
if(this.elements[itr].validationset &&
!this.elements[itr].validationset.validate())
{
bRet = false;
}
if(!bRet && !this.show_errors_together)
{
break;
}
}
if(!bRet)
{
document.error_disp_handler.FinalShowMsg();
return false;
}
if(this.addnlvalidation)
{
str =" var ret = "+this.addnlvalidation+"()";
eval(str);
if(!ret) return ret;
}
return true;
}
function add_validation(itemname,descriptor,errstr)
{
var condition = null;
if(arguments.length > 3)
{
condition = arguments[3];
}
if(!this.formobj)
{
alert("Error: The form object is not set properly");
return;
}//if
var itemobj = this.formobj[itemname];
if(itemobj.length && isNaN(itemobj.selectedIndex) )
//for radio button; don't do for 'select' item
{
itemobj = itemobj[0];
}
if(!itemobj)
{
alert("Error: Couldnot get the input object named: "+itemname);
return;
}
if(!itemobj.validationset)
{
itemobj.validationset = new ValidationSet(itemobj,this.show_errors_together);
}
itemobj.validationset.add(descriptor,errstr,condition);
itemobj.validatorobj=this;
}
function validator_enable_OPED()
{
document.error_disp_handler.EnableOnPageDisplay(false);
}
function validator_enable_OPED_SB()
{
document.error_disp_handler.EnableOnPageDisplay(true);
}
function sfm_ErrorDisplayHandler()
{
this.msgdisplay = new AlertMsgDisplayer();
this.EnableOnPageDisplay= edh_EnableOnPageDisplay;
this.ShowMsg=edh_ShowMsg;
this.FinalShowMsg=edh_FinalShowMsg;
this.all_msgs=new Array();
this.clear_msgs=edh_clear_msgs;
}
function edh_clear_msgs()
{
this.msgdisplay.clearmsg(this.all_msgs);
this.all_msgs = new Array();
}
function edh_FinalShowMsg()
{
this.msgdisplay.showmsg(this.all_msgs);
}
function edh_EnableOnPageDisplay(single_box)
{
if(true == single_box)
{
this.msgdisplay = new SingleBoxErrorDisplay();
}
else
{
this.msgdisplay = new DivMsgDisplayer();
}
}
function edh_ShowMsg(msg,input_element)
{
var objmsg = new Array();
objmsg["input_element"] = input_element;
objmsg["msg"] = msg;
this.all_msgs.push(objmsg);
}
function AlertMsgDisplayer()
{
this.showmsg = alert_showmsg;
this.clearmsg=alert_clearmsg;
}
function alert_clearmsg(msgs)
{
}
function alert_showmsg(msgs)
{
var whole_msg="";
var first_elmnt=null;
for(var m in msgs)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
whole_msg += msgs[m]["msg"] + "\n";
}
alert(whole_msg);
if(null != first_elmnt)
{
first_elmnt.focus();
}
}
function sfm_show_error_msg(msg,input_elmt)
{
document.error_disp_handler.ShowMsg(msg,input_elmt);
}
function SingleBoxErrorDisplay()
{
this.showmsg=sb_div_showmsg;
this.clearmsg=sb_div_clearmsg;
}
function sb_div_clearmsg(msgs)
{
var divname = form_error_div_name(msgs);
show_div_msg(divname,"");
}
function sb_div_showmsg(msgs)
{
var whole_msg="<ul>\n";
for(var m in msgs)
{
whole_msg += "<li>" + msgs[m]["msg"] + "</li>\n";
}
whole_msg += "</ul>";
var divname = form_error_div_name(msgs);
show_div_msg(divname,whole_msg);
}
function form_error_div_name(msgs)
{
var input_element= null;
for(var m in msgs)
{
input_element = msgs[m]["input_element"];
if(input_element){break;}
}
var divname ="";
if(input_element)
{
divname = input_element.form._sfm_form_name + "_errorloc";
}
return divname;
}
function DivMsgDisplayer()
{
this.showmsg=div_showmsg;
this.clearmsg=div_clearmsg;
}
function div_clearmsg(msgs)
{
for(var m in msgs)
{
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,"");
}
}
function element_div_name(input_element)
{
var divname = input_element.form._sfm_form_name + "_" +
input_element.name + "_errorloc";
divname = divname.replace(/[\[\]]/gi,"");
return divname;
}
function div_showmsg(msgs)
{
var whole_msg;
var first_elmnt=null;
for(var m in msgs)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,msgs[m]["msg"]);
}
if(null != first_elmnt)
{
first_elmnt.focus();
}
}
function show_div_msg(divname,msgstring)
{
if(divname.length<=0) return false;
if(document.layers)
{
divlayer = document.layers[divname];
if(!divlayer){return;}
divlayer.document.open();
divlayer.document.write(msgstring);
divlayer.document.close();
}
else
if(document.all)
{
divlayer = document.all[divname];
if(!divlayer){return;}
divlayer.innerHTML=msgstring;
}
else
if(document.getElementById)
{
divlayer = document.getElementById(divname);
if(!divlayer){return;}
divlayer.innerHTML =msgstring;
}
divlayer.style.visibility="visible";
return false;
}
function ValidationDesc(inputitem,desc,error,condition)
{
this.desc=desc;
this.error=error;
this.itemobj = inputitem;
this.condition = condition;
this.validate=vdesc_validate;
}
function vdesc_validate()
{
if(this.condition != null )
{
if(!eval(this.condition))
{
return true;
}
}
if(!validateInput(this.desc,this.itemobj,this.error))
{
this.itemobj.validatorobj.disable_validations=true;
this.itemobj.focus();
return false;
}
return true;
}
function ValidationSet(inputitem,msgs_together)
{
this.vSet=new Array();
this.add= add_validationdesc;
this.validate= vset_validate;
this.itemobj = inputitem;
this.msgs_together = msgs_together;
}
function add_validationdesc(desc,error,condition)
{
this.vSet[this.vSet.length]=
new ValidationDesc(this.itemobj,desc,error,condition);
}
function vset_validate()
{
var bRet = true;
for(var itr=0;itr<this.vSet.length;itr++)
{
bRet = bRet && this.vSet[itr].validate();
if(!bRet && !this.msgs_together)
{
break;
}
}
return bRet;
}
function validateEmail(email)
{
var splitted = email.match("^(.+)@(.+)$");
if(splitted == null) return false;
if(splitted[1] != null )
{
var regexp_user=/^\"?[\w-_\.]*\"?$/;
if(splitted[1].match(regexp_user) == null) return false;
}
if(splitted[2] != null)
{
var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
if(splitted[2].match(regexp_domain) == null)
{
var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
if(splitted[2].match(regexp_ip) == null) return false;
}// if
return true;
}
return false;
}
function IsCheckSelected(objValue,chkValue)
{
var selected=false;
var objcheck = objValue.form.elements[objValue.name];
if(objcheck.length)
{
var idxchk=-1;
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].value == chkValue)
{
idxchk=c;
break;
}//if
}//for
if(idxchk>= 0)
{
if(objcheck[idxchk].checked=="1")
{
selected=true;
}
}//if
}
else
{
if(objValue.checked == "1")
{
selected=true;
}//if
}//else
return selected;
}
function TestDontSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?false:true;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "Can't Proceed as you selected "+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestShouldSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?true:false;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "You should select"+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestRequiredInput(objValue,strError)
{
var ret = true;
var val = objValue.value;
val = val.replace(/^\s+|\s+$/g,"");//trim
if(eval(val.length) == 0)
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : Required Field";
}//if
sfm_show_error_msg(strError,objValue);
ret=false;
}//if
return ret;
}
function TestMaxLen(objValue,strMaxLen,strError)
{
var ret = true;
if(eval(objValue.value.length) > eval(strMaxLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : "+ strMaxLen +" characters maximum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestMinLen(objValue,strMinLen,strError)
{
var ret = true;
if(eval(objValue.value.length) < eval(strMinLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : " + strMinLen + " characters minimum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestInputType(objValue,strRegExp,strError,strDefaultError)
{
var ret = true;
var charpos = objValue.value.search(strRegExp);
if(objValue.value.length > 0 && charpos >= 0)
{
if(!strError || strError.length ==0)
{
strError = strDefaultError;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestEmail(objValue,strError)
{
var ret = true;
if(objValue.value.length > 0 && !validateEmail(objValue.value) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Enter a valid Email address ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestLessThan(objValue,strLessThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name +": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) >= eval(strLessThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be less than "+ strLessThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestGreaterThan(objValue,strGreaterThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name+": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) <= eval(strGreaterThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be greater than "+ strGreaterThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestRegExp(objValue,strRegExp,strError)
{
var ret = true;
if( objValue.value.length > 0 &&
!objValue.value.match(strRegExp) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Invalid characters found ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestDontSelect(objValue,dont_sel_index,strError)
{
var ret = true;
if(objValue.selectedIndex == null)
{
sfm_show_error_msg("ERROR: dontselect command for non-select Item");
ret = false;
}
if(objValue.selectedIndex == eval(dont_sel_index))
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Please Select one option ";
}//if
sfm_show_error_msg(strError);
ret = false;
}
return ret;
}
function TestSelectOneRadio(objValue,strError)
{
var objradio = objValue.form.elements[objValue.name];
var one_selected=false;
for(var r=0;r < objradio.length;r++)
{
if(objradio[r].checked == "1")
{
one_selected=true;
break;
}
}
if(false == one_selected)
{
if(!strError || strError.length ==0)
{
strError = "Please select one option from "+objValue.name;
}
sfm_show_error_msg(strError,objValue);
}
return one_selected;
}
function validateInput(strValidateStr,objValue,strError)
{
var ret = true;
var epos = strValidateStr.search("=");
var command = "";
var cmdvalue = "";
if(epos >= 0)
{
command = strValidateStr.substring(0,epos);
cmdvalue = strValidateStr.substr(epos+1);
}
else
{
command = strValidateStr;
}
switch(command)
{
case "req":
case "required":
{
ret = TestRequiredInput(objValue,strError)
break;
}//case required
case "maxlength":
case "maxlen":
{
ret = TestMaxLen(objValue,cmdvalue,strError)
break;
}//case maxlen
case "minlength":
case "minlen":
{
ret = TestMinLen(objValue,cmdvalue,strError)
break;
}//case minlen
case "alnum":
case "alphanumeric":
{
ret = TestInputType(objValue,"[^A-Za-z0-9]",strError,
objValue.name+": Only alpha-numeric characters allowed ");
break;
}
case "alnum_s":
case "alphanumeric_space":
{
ret = TestInputType(objValue,"[^A-Za-z0-9\\s]",strError,
objValue.name+": Only alpha-numeric characters and space allowed ");
break;
}
case "num":
case "numeric":
{
ret = TestInputType(objValue,"[^0-9]",strError,
objValue.name+": Only digits allowed ");
break;
}
case "dec":
case "decimal":
{
ret = TestInputType(objValue,"[^0-9\.]",strError,
objValue.name+": Only numbers allowed ");
break;
}
case "alphabetic":
case "alpha":
{
ret = TestInputType(objValue,"[^A-Za-z]",strError,
objValue.name+": Only alphabetic characters allowed ");
break;
}
case "alphabetic_space":
case "alpha_s":
{
ret = TestInputType(objValue,"[^A-Za-z\\s]",strError,
objValue.name+": Only alphabetic characters and space allowed ");
break;
}
case "email":
{
ret = TestEmail(objValue,strError);
break;
}
case "lt":
case "lessthan":
{
ret = TestLessThan(objValue,cmdvalue,strError);
break;
}
case "gt":
case "greaterthan":
{
ret = TestGreaterThan(objValue,cmdvalue,strError);
break;
}//case greaterthan
case "regexp":
{
ret = TestRegExp(objValue,cmdvalue,strError);
break;
}
case "dontselect":
{
ret = TestDontSelect(objValue,cmdvalue,strError)
break;
}
case "dontselectchk":
{
ret = TestDontSelectChk(objValue,cmdvalue,strError)
break;
}
case "shouldselchk":
{
ret = TestShouldSelectChk(objValue,cmdvalue,strError)
break;
}
case "selone_radio":
{
ret = TestSelectOneRadio(objValue,strError);
break;
}
}//switch
return ret;
}
function VWZ_IsListItemSelected(listname,value)
{
for(var i=0;i < listname.options.length;i++)
{
if(listname.options[i].selected == true &&
listname.options[i].value == value)
{
return true;
}
}
return false;
}
function VWZ_IsChecked(objcheck,value)
{
if(objcheck.length)
{
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].checked == "1" &&
objcheck[c].value == value)
{
return true;
}
}
}
else
{
if(objcheck.checked == "1" )
{
return true;
}
}
return false;
}
{
this.formobj=document.forms[formname];
if(!this.formobj)
{
alert("Error: couldnot get Form object "+formname);
return;
}
if(this.formobj.onsubmit)
{
this.formobj.old_onsubmit = this.formobj.onsubmit;
this.formobj.onsubmit=null;
}
else
{
this.formobj.old_onsubmit = null;
}
this.formobj._sfm_form_name=formname;
this.formobj.onsubmit=form_submit_handler;
this.addValidation = add_validation;
this.setAddnlValidationFunction=set_addnl_vfunction;
this.clearAllValidations = clear_all_validations;
this.disable_validations = false;//new
document.error_disp_handler = new sfm_ErrorDisplayHandler();
this.EnableOnPageErrorDisplay=validator_enable_OPED;
this.EnableOnPageErrorDisplaySingleBox=validator_enable_OPED_SB;
this.show_errors_together=true;
this.EnableMsgsTogether=sfm_enable_show_msgs_together;
}
function set_addnl_vfunction(functionname)
{
this.formobj.addnlvalidation = functionname;
}
function sfm_enable_show_msgs_together()
{
this.show_errors_together=true;
this.formobj.show_errors_together=true;
}
function clear_all_validations()
{
for(var itr=0;itr < this.formobj.elements.length;itr++)
{
this.formobj.elements[itr].validationset = null;
}
}
function form_submit_handler()
{
var bRet = true;
document.error_disp_handler.clear_msgs();
for(var itr=0;itr < this.elements.length;itr++)
{
if(this.elements[itr].validationset &&
!this.elements[itr].validationset.validate())
{
bRet = false;
}
if(!bRet && !this.show_errors_together)
{
break;
}
}
if(!bRet)
{
document.error_disp_handler.FinalShowMsg();
return false;
}
if(this.addnlvalidation)
{
str =" var ret = "+this.addnlvalidation+"()";
eval(str);
if(!ret) return ret;
}
return true;
}
function add_validation(itemname,descriptor,errstr)
{
var condition = null;
if(arguments.length > 3)
{
condition = arguments[3];
}
if(!this.formobj)
{
alert("Error: The form object is not set properly");
return;
}//if
var itemobj = this.formobj[itemname];
if(itemobj.length && isNaN(itemobj.selectedIndex) )
//for radio button; don't do for 'select' item
{
itemobj = itemobj[0];
}
if(!itemobj)
{
alert("Error: Couldnot get the input object named: "+itemname);
return;
}
if(!itemobj.validationset)
{
itemobj.validationset = new ValidationSet(itemobj,this.show_errors_together);
}
itemobj.validationset.add(descriptor,errstr,condition);
itemobj.validatorobj=this;
}
function validator_enable_OPED()
{
document.error_disp_handler.EnableOnPageDisplay(false);
}
function validator_enable_OPED_SB()
{
document.error_disp_handler.EnableOnPageDisplay(true);
}
function sfm_ErrorDisplayHandler()
{
this.msgdisplay = new AlertMsgDisplayer();
this.EnableOnPageDisplay= edh_EnableOnPageDisplay;
this.ShowMsg=edh_ShowMsg;
this.FinalShowMsg=edh_FinalShowMsg;
this.all_msgs=new Array();
this.clear_msgs=edh_clear_msgs;
}
function edh_clear_msgs()
{
this.msgdisplay.clearmsg(this.all_msgs);
this.all_msgs = new Array();
}
function edh_FinalShowMsg()
{
this.msgdisplay.showmsg(this.all_msgs);
}
function edh_EnableOnPageDisplay(single_box)
{
if(true == single_box)
{
this.msgdisplay = new SingleBoxErrorDisplay();
}
else
{
this.msgdisplay = new DivMsgDisplayer();
}
}
function edh_ShowMsg(msg,input_element)
{
var objmsg = new Array();
objmsg["input_element"] = input_element;
objmsg["msg"] = msg;
this.all_msgs.push(objmsg);
}
function AlertMsgDisplayer()
{
this.showmsg = alert_showmsg;
this.clearmsg=alert_clearmsg;
}
function alert_clearmsg(msgs)
{
}
function alert_showmsg(msgs)
{
var whole_msg="";
var first_elmnt=null;
for(var m in msgs)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
whole_msg += msgs[m]["msg"] + "\n";
}
alert(whole_msg);
if(null != first_elmnt)
{
first_elmnt.focus();
}
}
function sfm_show_error_msg(msg,input_elmt)
{
document.error_disp_handler.ShowMsg(msg,input_elmt);
}
function SingleBoxErrorDisplay()
{
this.showmsg=sb_div_showmsg;
this.clearmsg=sb_div_clearmsg;
}
function sb_div_clearmsg(msgs)
{
var divname = form_error_div_name(msgs);
show_div_msg(divname,"");
}
function sb_div_showmsg(msgs)
{
var whole_msg="<ul>\n";
for(var m in msgs)
{
whole_msg += "<li>" + msgs[m]["msg"] + "</li>\n";
}
whole_msg += "</ul>";
var divname = form_error_div_name(msgs);
show_div_msg(divname,whole_msg);
}
function form_error_div_name(msgs)
{
var input_element= null;
for(var m in msgs)
{
input_element = msgs[m]["input_element"];
if(input_element){break;}
}
var divname ="";
if(input_element)
{
divname = input_element.form._sfm_form_name + "_errorloc";
}
return divname;
}
function DivMsgDisplayer()
{
this.showmsg=div_showmsg;
this.clearmsg=div_clearmsg;
}
function div_clearmsg(msgs)
{
for(var m in msgs)
{
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,"");
}
}
function element_div_name(input_element)
{
var divname = input_element.form._sfm_form_name + "_" +
input_element.name + "_errorloc";
divname = divname.replace(/[\[\]]/gi,"");
return divname;
}
function div_showmsg(msgs)
{
var whole_msg;
var first_elmnt=null;
for(var m in msgs)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,msgs[m]["msg"]);
}
if(null != first_elmnt)
{
first_elmnt.focus();
}
}
function show_div_msg(divname,msgstring)
{
if(divname.length<=0) return false;
if(document.layers)
{
divlayer = document.layers[divname];
if(!divlayer){return;}
divlayer.document.open();
divlayer.document.write(msgstring);
divlayer.document.close();
}
else
if(document.all)
{
divlayer = document.all[divname];
if(!divlayer){return;}
divlayer.innerHTML=msgstring;
}
else
if(document.getElementById)
{
divlayer = document.getElementById(divname);
if(!divlayer){return;}
divlayer.innerHTML =msgstring;
}
divlayer.style.visibility="visible";
return false;
}
function ValidationDesc(inputitem,desc,error,condition)
{
this.desc=desc;
this.error=error;
this.itemobj = inputitem;
this.condition = condition;
this.validate=vdesc_validate;
}
function vdesc_validate()
{
if(this.condition != null )
{
if(!eval(this.condition))
{
return true;
}
}
if(!validateInput(this.desc,this.itemobj,this.error))
{
this.itemobj.validatorobj.disable_validations=true;
this.itemobj.focus();
return false;
}
return true;
}
function ValidationSet(inputitem,msgs_together)
{
this.vSet=new Array();
this.add= add_validationdesc;
this.validate= vset_validate;
this.itemobj = inputitem;
this.msgs_together = msgs_together;
}
function add_validationdesc(desc,error,condition)
{
this.vSet[this.vSet.length]=
new ValidationDesc(this.itemobj,desc,error,condition);
}
function vset_validate()
{
var bRet = true;
for(var itr=0;itr<this.vSet.length;itr++)
{
bRet = bRet && this.vSet[itr].validate();
if(!bRet && !this.msgs_together)
{
break;
}
}
return bRet;
}
function validateEmail(email)
{
var splitted = email.match("^(.+)@(.+)$");
if(splitted == null) return false;
if(splitted[1] != null )
{
var regexp_user=/^\"?[\w-_\.]*\"?$/;
if(splitted[1].match(regexp_user) == null) return false;
}
if(splitted[2] != null)
{
var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
if(splitted[2].match(regexp_domain) == null)
{
var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
if(splitted[2].match(regexp_ip) == null) return false;
}// if
return true;
}
return false;
}
function IsCheckSelected(objValue,chkValue)
{
var selected=false;
var objcheck = objValue.form.elements[objValue.name];
if(objcheck.length)
{
var idxchk=-1;
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].value == chkValue)
{
idxchk=c;
break;
}//if
}//for
if(idxchk>= 0)
{
if(objcheck[idxchk].checked=="1")
{
selected=true;
}
}//if
}
else
{
if(objValue.checked == "1")
{
selected=true;
}//if
}//else
return selected;
}
function TestDontSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?false:true;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "Can't Proceed as you selected "+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestShouldSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?true:false;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "You should select"+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestRequiredInput(objValue,strError)
{
var ret = true;
var val = objValue.value;
val = val.replace(/^\s+|\s+$/g,"");//trim
if(eval(val.length) == 0)
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : Required Field";
}//if
sfm_show_error_msg(strError,objValue);
ret=false;
}//if
return ret;
}
function TestMaxLen(objValue,strMaxLen,strError)
{
var ret = true;
if(eval(objValue.value.length) > eval(strMaxLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : "+ strMaxLen +" characters maximum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestMinLen(objValue,strMinLen,strError)
{
var ret = true;
if(eval(objValue.value.length) < eval(strMinLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : " + strMinLen + " characters minimum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestInputType(objValue,strRegExp,strError,strDefaultError)
{
var ret = true;
var charpos = objValue.value.search(strRegExp);
if(objValue.value.length > 0 && charpos >= 0)
{
if(!strError || strError.length ==0)
{
strError = strDefaultError;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestEmail(objValue,strError)
{
var ret = true;
if(objValue.value.length > 0 && !validateEmail(objValue.value) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Enter a valid Email address ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestLessThan(objValue,strLessThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name +": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) >= eval(strLessThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be less than "+ strLessThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestGreaterThan(objValue,strGreaterThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name+": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) <= eval(strGreaterThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be greater than "+ strGreaterThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestRegExp(objValue,strRegExp,strError)
{
var ret = true;
if( objValue.value.length > 0 &&
!objValue.value.match(strRegExp) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Invalid characters found ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestDontSelect(objValue,dont_sel_index,strError)
{
var ret = true;
if(objValue.selectedIndex == null)
{
sfm_show_error_msg("ERROR: dontselect command for non-select Item");
ret = false;
}
if(objValue.selectedIndex == eval(dont_sel_index))
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Please Select one option ";
}//if
sfm_show_error_msg(strError);
ret = false;
}
return ret;
}
function TestSelectOneRadio(objValue,strError)
{
var objradio = objValue.form.elements[objValue.name];
var one_selected=false;
for(var r=0;r < objradio.length;r++)
{
if(objradio[r].checked == "1")
{
one_selected=true;
break;
}
}
if(false == one_selected)
{
if(!strError || strError.length ==0)
{
strError = "Please select one option from "+objValue.name;
}
sfm_show_error_msg(strError,objValue);
}
return one_selected;
}
function validateInput(strValidateStr,objValue,strError)
{
var ret = true;
var epos = strValidateStr.search("=");
var command = "";
var cmdvalue = "";
if(epos >= 0)
{
command = strValidateStr.substring(0,epos);
cmdvalue = strValidateStr.substr(epos+1);
}
else
{
command = strValidateStr;
}
switch(command)
{
case "req":
case "required":
{
ret = TestRequiredInput(objValue,strError)
break;
}//case required
case "maxlength":
case "maxlen":
{
ret = TestMaxLen(objValue,cmdvalue,strError)
break;
}//case maxlen
case "minlength":
case "minlen":
{
ret = TestMinLen(objValue,cmdvalue,strError)
break;
}//case minlen
case "alnum":
case "alphanumeric":
{
ret = TestInputType(objValue,"[^A-Za-z0-9]",strError,
objValue.name+": Only alpha-numeric characters allowed ");
break;
}
case "alnum_s":
case "alphanumeric_space":
{
ret = TestInputType(objValue,"[^A-Za-z0-9\\s]",strError,
objValue.name+": Only alpha-numeric characters and space allowed ");
break;
}
case "num":
case "numeric":
{
ret = TestInputType(objValue,"[^0-9]",strError,
objValue.name+": Only digits allowed ");
break;
}
case "dec":
case "decimal":
{
ret = TestInputType(objValue,"[^0-9\.]",strError,
objValue.name+": Only numbers allowed ");
break;
}
case "alphabetic":
case "alpha":
{
ret = TestInputType(objValue,"[^A-Za-z]",strError,
objValue.name+": Only alphabetic characters allowed ");
break;
}
case "alphabetic_space":
case "alpha_s":
{
ret = TestInputType(objValue,"[^A-Za-z\\s]",strError,
objValue.name+": Only alphabetic characters and space allowed ");
break;
}
case "email":
{
ret = TestEmail(objValue,strError);
break;
}
case "lt":
case "lessthan":
{
ret = TestLessThan(objValue,cmdvalue,strError);
break;
}
case "gt":
case "greaterthan":
{
ret = TestGreaterThan(objValue,cmdvalue,strError);
break;
}//case greaterthan
case "regexp":
{
ret = TestRegExp(objValue,cmdvalue,strError);
break;
}
case "dontselect":
{
ret = TestDontSelect(objValue,cmdvalue,strError)
break;
}
case "dontselectchk":
{
ret = TestDontSelectChk(objValue,cmdvalue,strError)
break;
}
case "shouldselchk":
{
ret = TestShouldSelectChk(objValue,cmdvalue,strError)
break;
}
case "selone_radio":
{
ret = TestSelectOneRadio(objValue,strError);
break;
}
}//switch
return ret;
}
function VWZ_IsListItemSelected(listname,value)
{
for(var i=0;i < listname.options.length;i++)
{
if(listname.options[i].selected == true &&
listname.options[i].value == value)
{
return true;
}
}
return false;
}
function VWZ_IsChecked(objcheck,value)
{
if(objcheck.length)
{
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].checked == "1" &&
objcheck[c].value == value)
{
return true;
}
}
}
else
{
if(objcheck.checked == "1" )
{
return true;
}
}
return false;
}
1 comment:
Really you shared useful post. I learned new thing from your post.
Thanks for sharing.
primary school website design
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