发布一个名为'id'和'url'的两个字段的表单后,我有以下代码:
$this->load->library('form_validation');
$this->form_validation->set_rules('id', 'id', 'trim|xss_clean');
$this->form_validation->set_rules('url', 'url|id', 'trim|xss_clean|callback_url_check');
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db查询需要两个字段.
函数url_check($ str,$ id)被调用,但在这种情况下,'id'的值始终为0.
如果我这样做:
$this->form_validation->set_rules('url', 'url', 'trim|xss_clean|callback_url_check');
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并呼吁url_check($str)一切正常,因为它应该做.
问题是如何将两个值传递给url_check($str, $id)?
我有以下路由通过get工作:
CanopyAbcBundle_crud_success:
pattern: /crud/success/
defaults: { _controller: CanopyAbcBundle:Crud:success }
requirements:
_method: GET
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其中Canopy是命名空间,捆绑包是AbcBundle,控制器Crud,动作是成功的.
以下失败:
return $this->redirect($this->generateUrl('crud_success'));
Unable to generate a URL for the named route "crud_success" as such route does not exist.
500 Internal Server Error - RouteNotFoundException
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如何使用generateUrl()重定向?
我有一个名为"business_id"的下拉列表.
<select name="business_id">
<option value="0">Select Business</option> More options...
</select>
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验证规则就是这里,用户必须选择一个选项.
$this->form_validation->set_rules('business_id', 'Business', 'greater_than[0]');
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问题是错误消息说:业务字段必须包含大于0的数字.不是很直观!我想要它说"你必须选择一个企业".
我试过了:
$this->form_validation->set_message('Business', 'You must select a business');
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但CI完全忽略了这一点.有人有解决方案吗?
我正在尝试在 go-ethereum 中创建原始交易,并发现了一些我正在修改的教程代码。错误是:
./transaction_raw_create.go:65:18: ts.GetRlp undefined (type types.Transactions has no field or method GetRlp)
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代码:
package main
import (
"context"
"crypto/ecdsa"
"encoding/hex"
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/jimlawless/whereami"
)
func createRawTransaction() {
client, err := ethclient.Dial(infura.URL + infura.ID)
if err != nil {
fmt.Println(err.Error() + "@" + whereami.WhereAmI())
}
privateKey, err := crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
if err != nil {
fmt.Println(err.Error() + "@" + whereami.WhereAmI())
}
publicKey := privateKey.Public()
publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
if !ok {
fmt.Println("error casting public key to …Run Code Online (Sandbox Code Playgroud) 我试图使用模型,但我得到一个致命的错误,所以我认为它不能正确自动加载.
ErrorException [致命错误]:找不到类'Properties_Model'
违规控制线:
$properties = new Properties_Model;
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该模型:
class Properties_Model extends Model
{
public function __construct()
{
parent::__construct();
}
}
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我还把课程放在三个不同的地方,希望有人能够工作,但都失败了.它们是:应用程序/类/模型应用程序/模型应用程序/模型
我错过了什么?
我正在构建一个需要上传文件的应用程序,并将它们放在单独的目录中以获取缩略图和全尺寸图像.但是$ config ['upload_path'] ='./ uploads /'; 只允许我选择一个上传路径.如何定义两个或多个上传路径?
有人提到了这个问题:从恐慌中恢复的程序不会按预期退出 它工作正常,但它依赖于了解恐慌发生的位置才能放置延迟函数。我的代码如下。
package main
import "fmt"
func main() {
defer recoverPanic()
f1()
f2()
f3()
}
func f1() {
fmt.Println("f1")
}
func f2() {
defer f3() //<--- don't want to defer f3 here because I might not know f2 will panic, panic could occuer elsewhere
fmt.Println("f2")
panic("f2")
}
func f3() {
fmt.Println("f3")
}
func recoverPanic() {
if r := recover(); r != nil {
fmt.Printf("Cause of panic ==>> %q\n", r)
}
}
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在恐慌函数中延迟函数调用 f3() 是有效的,输出如下。
f1
f2
f3
Cause of …Run Code Online (Sandbox Code Playgroud) 有没有人知道Codeigniter的Google双因素身份验证教程?
在构建 Web 程序集应用程序时,我遇到了一个神秘错误的问题:
LinkError: WebAssembly.instantiate(): Import #1 module="go" function="runtime.resetMemoryDataView" 错误:函数导入需要一个可调用的
它是用这个命令编译的:
GOOS=js GOARCH=wasm go build -o main.wasm main.go server.go
这是 index.html 的正文,里面什么都没有
<body class="is-preload">
<script src="wasm_exec.js"></script>
<script>
wasm_filename = "main.wasm";
function message(s){
document.getElementById("message").textContent = s;
}
function load_wasm(){
if (!WebAssembly.instantiateStreaming) { // polyfill
WebAssembly.instantiateStreaming = async (resp, importObject) => {
const source = await (await resp).arrayBuffer();
return await WebAssembly.instantiate(source, importObject);
};
}
const go = new Go();
WebAssembly.instantiateStreaming(fetch(wasm_filename), go.importObject)
.then(results => { go.run(results.instance); })
.catch((err) => {
message("Error Loading WebAssembly …Run Code Online (Sandbox Code Playgroud) 从phpmyadmin运行时,以下查询按预期返回一行.
SELECT units . * , locations . *
FROM units, locations
WHERE units.id = '1'
AND units.location_id = locations.id
LIMIT 0 , 30
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但是当我尝试在Kohana 3中做到这一点时:
$unit = DB::select('units.*', 'locations.*')
->from('units', 'locations')
->where('units.id', '=', $id)->and_where('units.location_id', '=', 'locations.id')
->execute()->as_array();
var_dump($unit);
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它打印
数组(0){}
我究竟做错了什么?
我的应用程序在多个控制器中成功使用Codeigniter验证,用于各种输入字段.但是,当涉及上传和验证上传的图像时,验证会抱怨.
我有以下形式:require_once('head.php'); 回声'
if($info)
echo '<div class="info">'.$info.'</div>';
$attributes = array('class' => 'updateavatarform', 'id' => 'updateavatarform');
echo form_open_multipart('user/avatar', $attributes);
echo '<div>Select Image</div>';
$data = array(
'name' => 'avatar',
'id' => 'avatar',
'value' => '',
'maxlength' => '',
'size' => '48',
);
echo form_upload($data);
echo '<br/><br/>';
echo form_submit('submit', 'Submit');
echo form_close();
require_once('footer.php');
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控制器看起来像:
function avatar()
{
$data['user'] = $this->authorize->isLoggedIn();
if(!$data['user'])
$this->authorize->protectUser();
$data['title'] = 'Evcenter User Update Avatar';
$data['keywords'] = 'alternative fuel';
$data['description'] = 'evcenter.org';
$data['info'] = FALSE;
if($_POST)
{ …Run Code Online (Sandbox Code Playgroud) 我正在尝试为进程的执行计时,我需要以秒为单位的值。
package main
import (
"fmt"
"time"
)
func main() {
startTime := time.Now()
time.Sleep(1379 * time.Millisecond)
elapsedTime := time.Since(startTime)
fmt.Println(elapsedTime) //->1.379s
secs := float64(elapsedTime / time.Second)
fmt.Println(secs)//->1
//desired output is: 1.379
}
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我正在寻找一种方法来让时间不被四舍五入。这是操场:https : //play.golang.org/p/VLgKTpmkHPS
codeigniter ×4
go ×4
file ×2
kohana ×2
kohana-3 ×2
php ×2
upload ×2
validation ×2
autoload ×1
builder ×1
callback ×1
duration ×1
forms ×1
go-ethereum ×1
panic ×1
parameters ×1
path ×1
recover ×1
routes ×1
routing ×1
symfony ×1
time ×1
webassembly ×1