如何制作它以便在我的帖子表单上进行错误验证时，它不会仅从数据库发回默认值，但如果我要编辑值并点击提交，它会保存我试图更新的数据。我被困在我只能做其中一个的地方。
<? if (isset($update)) { ?>
<?php echo set_value ('fname'); ?>
<?= form_open("Phonebook/updateentry/" . $entry['id']) ?>
<?= form_fieldset("Update Entry"); ?>
<?= form_label('First Name: ', 'fname'); ?> <br>
<?= form_input(array('name' => 'fname', 'id' => 'fname', 'value' => $entry['fname'])); ?> <br>
<?= form_label('Last Name: ', 'lname'); ?> <br>
<?= form_input(array('name' => 'lname', 'id' => 'lname', 'value' => $entry['lname'])); ?> <br>
<?= form_label('Phone Number: ', 'phone'); ?> <br>
<?= form_input(array('name' => 'phone', 'id' => 'phone', 'value' => $entry['phone'])); ?> <br>
<?= form_label('Email: ', 'email'); ?> <br>
<?= form_input(array('name' => 'email', 'id'=>'email', 'value' => $entry['email'])); ?> <br>
<?= form_submit('phonebooksubmit', 'Submit'); ?>
<?= form_fieldset_close(); ?>
<?= form_close() ?>
<? } ?>
private function display()
{
$query = $this->db->query("SELECT * FROM phonebook ORDER BY id ASC;");
$this->TPL['listing'] = $query->result_array();
$this->load->view('phonebook_view', $this->TPL);
}
public function updateentry($id)
{
$this->form_validation->set_rules('fname', 'First Name', 'required|alpha|min_length[5]|max_length[15]',
array(
'required' => 'You have not provided the %s. ',
'alpha' => '%s must only compose of alphanumeric letters.',
'max_length' => 'You exceeded max char of 20 . ',
'min_length' => 'The min length must be 5 . '
));
$this->form_validation->set_rules('lname', 'Last Name', 'required|alpha|min_length[5]|max_length[20]',
array(
'required' => 'You have not provided %s .',
'alpha' => '%s must only compose of alphanumeric letters.',
'max_length' => 'You exceeded max char of 20 . ',
'min_length' => 'The min length must be 5 . '
));
$this->form_validation->set_rules('phone', 'Phone Number', 'required|regex_match[/^([0-9]{3})[-. ]([0-9]{4})$/]',
array(
'required' => 'You have not provided %s .',
'regex_match' => 'Please use the correct phone format.'
));
$this->form_validation->set_rules('email', 'Email', 'required|valid_email',
array(
'required' => 'You have not provided %s .',
'valid_email' => 'Please provide valid email. '
));
$this->form_validation->set_error_delimiters('<p class = "errorlist">' , '</p>');
if ($this->form_validation->run() == FALSE) {
$query = $this->db->query("SELECT * FROM phonebook where id = '$id';");
$this->TPL['entry'] = $query->result_array()[0];
$this->TPL['update'] = true;
$this->TPL['memory'] = true;
$this->display();
}
else
{
$fname = $this->input->post("fname");
$lname = $this->input->post("lname");
$phone = $this->input->post("phone");
$email = $this->input->post("email");
$query = $this->db->query("UPDATE phonebook " .
"SET fname = '$fname'," .
" lname = '$lname'," .
" phone = '$phone'," .
" email = '$email'" .
" WHERE id = '$id';");
$this->display();
}
}
我知道我必须使用set_value（），但我不确定如何制作它以便它可以同时执行这两项操作。
答案 0 :(得分：0)
set_value有第二个参数，这是默认值。如果你提取记录并编辑它们，它看起来像这样：
// $data is from your database
set_value('name', $data['name'])
我使用“name”作为示例，但这可能是您记录中的任何字段。
但回到你的控制器中，你需要这样的东西：
if( $this->input->method == 'POST' )
// Do your validation and updating to the record
// Then pull in the record for your view
$view_data['data'] = $this->db->query('... ... ...');
通过这样做，您总是会提取新数据
答案 1 :(得分：-1)
您的代码看起来非常可靠。
我建议尝试添加
<div style="white-space: nowrap">
<form class="form-inline" editable-form name="rowForm" onaftersave="save()" ng-show="rowForm.$visible" shown="shown">
<button type="submit" class="btn btn-primary" ng-disabled="rowForm.$waiting">Save</button>
<button type="button" class="btn btn-link" ng-disabled="rowForm.$waiting" ng-click="shown ? remove() : rowForm.$cancel()">Cancel</button>
</form>
<!-- Buttons to edit and remove -->
<div ng-hide="rowForm.$visible">
<a href="" ng-click="rowForm.$show()" ng-hide="showDeleteButton"><span class="glyphicon glyphicon-edit" style="margin-right: 5px;"></span>Edit</a>
<a href="" ng-click="showDeleteButton = true" ng-hide="showDeleteButton"><span class="glyphicon glyphicon-trash" style="margin-left: 10px; margin-right: 5px;"></span>Remove</a>
<button class="btn btn-danger" ng-click="remove()" ng-show="showDeleteButton">Remove</button>
<button class="btn btn-link" ng-click="showDeleteButton = false" ng-show="showDeleteButton">Cancel</button>
</div>
</div>
在你的功能结束时。
然后使用最新信息更新数据库。
希望这有帮助。