4

この関数を 2 時間動作させようとしてきましたが、エラーの場所を見つけることができません。

これは予期しない動作をしています。

フォーム内のいずれかのフィールドが入力されると、フォームは php ファイルに投稿され、すべてのフィールドが空のままの場合、つまり 5 つのエラーの場合にのみ (予想どおり) エラーが表示されます。

ただし、6 つのフィールドのいずれかが入力されると、フォーム内の他のエラーに関係なくフォームが送信されます。

このフォームの検証を手伝ってください。

errorユーザーに表示するエラーの情報です。 errors見つかったエラーの数です。

JavaScript function

function formValidator(){

    var elementValue = document.getElementById("first-name").value;
    var elementName = document.getElementById("first-name");
    var errors = 0;
    var error = " ";

    if (elementValue == "" || elementValue == " " || elementValue== NULL){
        error = "First Name shouldn't be left empty.";
        errors = 1;
    }

    var elementValue = document.getElementById("last-name").value;
    var elementName = document.getElementById("last-name");

    if (elementValue == "" || elementValue == " " || elementValue== NULL){
        if (errors == 0){
            error = "Last Name shouldn't be left empty.";
        }
        else{
            error += "<br>Last Name shouldn't be left empty.";
        }
        errors+=1;
    }
    var elementValue = document.getElementById("email-for-registration").value;
    var elementName = document.getElementById("email-for-registration");
    var email_err = "false";
    if (elementValue == "" || elementValue == " " || elementValue== NULL){
        email_err = "true";
    }
    var elementValue = document.getElementById("phone-for-registration").value;
    if ((elementValue == "" || elementValue == " " || elementValue== NULL) && email_err == "true"){
        if (errors == 0){
            error = "Both email and contact cannot be left empty.";
        }
        else{
            error += "<br>Both email and contact cannot be left empty.";
        }
        errors+=1;
    }
    var elementValue = document.getElementById("password-for-registration").value;
    var elementName = document.getElementById("password-for-registration");
    if (elementValue == "" || elementValue == " " || elementValue== NULL){
        if (errors == 0){
            error = "Password shouldn't be left empty.\nSelect a strong password atleast 6 characters long.";
        }
        else{
            error += "<br>Password shouldn't be left empty.Select a strong password atleast 6 characters long.";
        }
        errors+=1;
    }
    else if (elementValue.length<6){
        if (errors == 0){
            error = "Password less than 6 characters aren't allowed for security reasons.";
        }
        else{
            error += "<br>Password less than 6 characters aren't allowed for security reasons.";
        }
        errors+=1;
    }
    email_err = document.getElementById("confirm-password-for-registration").value;
    var elementName = document.getElementById("confirm-password-for-registration");
    if (elementValue != email_err){
        if (errors == 0){
            error = "The password to confirm doesn't match with your desired password.";
        }
        else{
            error += "<br>The password to confirm doesn't match with your desired password.";
        }
        errors+=1;
    }
    var elementValue = document.getElementById("agreed-for-registration");
    var elementName = document.getElementById("agreed-for-registration");
    if (!elementValue.checked){
        if (errors == 0){
        error = "Please go through our <a href=''>Terms and Conditions</a>, and make sure you agree to continue.";
         document.getElementById("agreed-for-registration").focus();
        }
        else{
            error += "<br>Please go through our <a href=''>Terms and Conditions</a>, and make sure you agree to continue.";
        }
        errors+=1;
    }


    alert(errors);

    if (errors > 1){
        document.getElementById("form_errors").innerHTML = "<h4 style='color:red;'>Please remove the following errors from form to continue.</h4>";
        document.getElementById("form_errors").innerHTML += "<h5>" + error + "</h5><br>";
        return false;
    } else if (errors == 1){
        alert(error);
        elementName.focus();
        return false;
    } else if (errors == 0){
        return true;
    }
    return false;
}

ここで呼び出される関数。

<form name="registration" class="deco_blu_form" action="<?=$base_url;?>forms/confirm-registration/members.php" method="post" onsubmit="return formValidator();">

他の情報、コード、または説明が必要かどうか尋ねてください。

4

2 に答える 2

3

フィドル

elementValue === "NULL"または持っている必要がありますelementValue == null

デバッグを容易にするためだけconsole.logに、アラートとトリガーの代わりに配置します。onblur

したがって、完全なコードは次のとおりです。

function formValidator() {

var elementValue = document.getElementById("first-name").value;
var elementName = document.getElementById("first-name");
var errors = 0;
var error = " ";

if (elementValue == "" || elementValue == " " || elementValue === "NULL") {
    error = "First Name shouldn't be left empty.";
    errors = 1;
}

var elementValue = document.getElementById("last-name").value;
var elementName = document.getElementById("last-name");

if (elementValue == "" || elementValue == " " || elementValue === "NULL") {
    if (errors == 0) {
        error = "Last Name shouldn't be left empty.";
    } else {
        error += "<br>Last Name shouldn't be left empty.";
    }
    errors += 1;
}
var elementValue = document.getElementById("email-for-registration").value;
var elementName = document.getElementById("email-for-registration");
var email_err = "false";
if (elementValue == "" || elementValue == " " || elementValue === "NULL") {
    email_err = "true";
}
var elementValue = document.getElementById("phone-for-registration").value;
if ((elementValue == "" || elementValue == " " || elementValue === "NULL") && email_err == "true") {
    if (errors == 0) {
        error = "Both email and contact cannot be left empty.";
    } else {
        error += "<br>Both email and contact cannot be left empty.";
    }
    errors += 1;
}
var elementValue = document.getElementById("password-for-registration").value;
var elementName = document.getElementById("password-for-registration");
if (elementValue == "" || elementValue == " " || elementValue === "NULL") {
    if (errors == 0) {
        error = "Password shouldn't be left empty.\nSelect a strong password atleast 6 characters long.";
    } else {
        error += "<br>Password shouldn't be left empty.Select a strong password atleast 6 characters long.";
    }
    errors += 1;
} else if (elementValue.length < 6) {
    if (errors == 0) {
        error = "Password less than 6 characters aren't allowed for security reasons.";
    } else {
        error += "<br>Password less than 6 characters aren't allowed for security reasons.";
    }
    errors += 1;
}
email_err = document.getElementById("confirm-password-for-registration").value;
var elementName = document.getElementById("confirm-password-for-registration");
if (elementValue != email_err) {
    if (errors == 0) {
        error = "The password to confirm doesn't match with your desired password.";
    } else {
        error += "<br>The password to confirm doesn't match with your desired password.";
    }
    errors += 1;
}
var elementValue = document.getElementById("agreed-for-registration");
var elementName = document.getElementById("agreed-for-registration");
if (!elementValue.checked) {
    if (errors == 0) {
        error = "Please go through our <a href=''>Terms and Conditions</a>, and make sure you agree to continue.";
        document.getElementById("agreed-for-registration").focus();
    } else {
        error += "<br>Please go through our <a href=''>Terms and Conditions</a>, and make sure you agree to continue.";
    }
    errors += 1;
}


console.log(errors)

if (errors > 1) {
    document.getElementById("form_errors").innerHTML = "<h4 style='color:red;'>Please remove the following errors from form to continue.</h4>";
    document.getElementById("form_errors").innerHTML += "<h5>" + error + "</h5><br>";
    return false;
} else if (errors == 1) {
    alert(error);
    elementName.focus();
    return false;
} else if (errors == 0) {
    return true;
}
return false;
}
于 2013-06-26T12:20:16.487 に答える