Laravel-从角度调用PHP函数以更新数据库时出现错误:需要表达式

<!--Letter Addressee Name -->
<td *ngIf="!responseData.loading" class="width-1 visible-lg-table-cell">
    <input type="text" name="letterAddresseeNameTextField" ng-value= getLetterAddresseeName(responseData) ng-change = "getLetterAddresseeName()"><br>


</td>

<!--Preferred Addressee Name -->
<td *ngIf="!responseData.loading" class="width-1 visible-lg-table-cell">
  <input type="text" name="preferredAddresseeNameTextField" ng-value = getPreferredAddresseeName(responseData) ng-change = "getPreferredAddresseeName()" ><br>

</td>

在这个表单的TS(account table.TS)中,我添加了 ng-change 表格单元格的属性:

public getLetterAddresseeName(data) {
    if(data.myAccount='0') {
        //data.letterAddresseeName = letterAddresseeNameTextField.value;
        if(data.letterAddresseeName) {
            AccountsController::addAddresseesToAccount();
            console.log("data.letterAddresseeName: ", data.letterAddresseeName);
            return data.letterAddresseeName;
        }
        else {
            console.log("No letter addressee name in database ");
            return;
        }
    }
    else {
        if(data.groupTag == null) {
            console.log("data.groupTag == null ");
            return;
        }
        else if(data.groupTag.indexOf('PENDING') > -1) {
            console.log("data.group.indexOf('PENDING') > -1 ");
            return;
        }
        else {
            console.log("Else statement of getLetterAddresseeName() reached ");
            return;
        }
    }
}

public getPreferredAddresseeName(data) {
    if(data.myAccount='0') {
        if(data.preferredAddresseeName) {
            AccountsController::addAddresseesToAccount();
            console.log("data.preferredAddresseeName: ", data.preferredAddresseeName);
            return data.preferredAddresseeName;
        }
        else {
            console.log("No preferred addressee name in database ");
            return;
        }
    }
    else {
        if(data.groupTag == null) {
            console.log("data.groupTag == null ");
            return;
        }
        else {
            console.log("Else statement of getPreferredAddresseName() reached ");
            return;
        }
    }
}

这个 addAddresseesToAccount() 在这些TS函数中调用的PHP函数,以实际向帐户中添加新联系人:

AccountsController::addAddresseesToAccount();

public function addAddresseesToAccount( Request $request)
{
    $account = app\Account::find($request->input('accountId'));
    //dd("Value of account: ", $account);
    if($request->input('letterAddresseeNameTextField') != null)
    {
        $account->letterAddresseeName = $request->input('letterAddresseeNameTextField'.value);
        $account->save();
    }
    else
    {
        dd("letterAddresseeNameTextField value is blank ");
    }

    if($request->input('preferredAddresseeNameTextField') != null)
    {
        $account->preferredAddresseeName = $request->input('preferredAddresseeNameTextField'.value);
        $account->save();
    }
    else
    {
        dd("preferredAddresseeNameTextField value is blank ");
    }
    return $account;
}

当我使用以下命令运行应用程序时:

ng build--watch--sourcemaps=false

这个 ng build 命令开始编译角度,但随后抛出一个错误,该错误表示:

路径/帐户表。ts(547,36):错误TS1109:应为表达式。

它抱怨的两行是我调用PHP函数用表单中输入的新地址实际更新帐户的行。

有人能告诉我我做错了什么吗?为什么我会得到这些错误告诉我一个表达式是预期的?我不想返回表达式,只想更新数据库中的帐户。。。