search-course/resources/views/admin/elements/input_modal.blade.php

<span class="btn btn-inline btn-primary input_modal hidden"
        data-toggle="modal"
        data-target=".bd-input-modal-lg" data-backdrop="static" data-keyboard="false" data-controls-modal="leave_modal"></span>
<div class="modal input fade bd-input-modal-lg"
     role="dialog"
     aria-labelledby="myLargeModalLabel"
     aria-hidden="true">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header"><!-- 
                <button type="button" class="modal-close" data-dismiss="modal" aria-label="Close">
                    <i class="font-icon-close-2"></i>
                </button> -->
                <h4 class="modal-title"></h4>
            </div>
            <div class="modal-body">
                <div class="modal-result"></div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-rounded btn-black" data-dismiss="modal">Cancel</button>
                <span class="btn btn-rounded btn-secondary save">Submit</span>
            </div>
        </div>
    </div>
</div>
<script type="text/javascript">
    function modal_input(title,link){
        $('.input .modal-title').html(title);
        input_modal(link,callback_input);
    }
    function callback_input(){
        $('.input_modal').click();
    }
    function input_modal(link,callback){
        $('.input .modal-result').load(link,callback);
    }

    $('.save').on('click', function(e){
        e.preventDefault();
        if(check_required() == true){
            $(this).off(e);
            $(this).html('Please wait..').attr('disabled', 'disabled');
            $(this).closest('.input').find('form').submit();
        }
    });

    $(document).keypress(function(e){
        var keycode = (e.keyCode ? e.keyCode : e.which);
        if(keycode == '13'){
            e.preventDefault();
            $('.save').click();   
        }
    });

    function check_required(){
        var check = 0;
        var required = 0;
        $('.input .required').each(function(){
            required = required + 1;
            if($(this).val() == null || $(this).val() == ''){
                $(this).css('border-color','#ff0000');
            }else{
                $(this).css('border-color','#d6e2e8');
                check = check + 1;
            }
        });
        if(check == required){
            return true;
        }
    }
</script>