te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Simple example with window.requestFileSystem() function - Stack Overflow

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    javascript - Simple example with window.requestFileSystem() function - Stack Overflow

    programmeradmin2浏览0评论

    I have next problem: I try to use window.requestFileSystem() function in Chrome, but it failed. Look for my steps:

    1)I added 'allow file access from file' flag to Chrome(see img bellow):

    2)I restarted the system.

    3)Then I ran the Chrome with 'allow file access file' flag.

    4) After all I try to launch this sample code:

    function onInitFs(fs) {
  console.log('Opened file system: ' + fs.name);
}

    function errorHandler(e)
{
    console.log("Error");
}    
    window.requestFileSystem(window.TEMPORARY, 5*1024*1024 /*5MB*/, onInitFs, errorHandler);

    but It failed:

    What's wrong in my actions?

    I have next problem: I try to use window.requestFileSystem() function in Chrome, but it failed. Look for my steps:

    1)I added 'allow file access from file' flag to Chrome(see img bellow):

    2)I restarted the system.

    3)Then I ran the Chrome with 'allow file access file' flag.

    4) After all I try to launch this sample code:

    function onInitFs(fs) {
  console.log('Opened file system: ' + fs.name);
}

    function errorHandler(e)
{
    console.log("Error");
}    
    window.requestFileSystem(window.TEMPORARY, 5*1024*1024 /*5MB*/, onInitFs, errorHandler);

    but It failed:

    What's wrong in my actions?

    • javascript
    • jquery
    • google-chrome
    • google-chrome-devtools
    Share Improve this question asked Oct 5, 2012 at 14:59 abilashabilash 8973 gold badges12 silver badges33 bronze badges
    Add a ment  | 

    4 Answers 4

    Reset to default 14

    That's because this functionality is currently only availble prefixed, ie window.webkitRequestFileSystem

    You may find this turorial interesting: http://www.html5rocks./en/tutorials/file/filesystem/

    This code works for me in chrome. I actually used it for phonegap, but I tested it first on chrome on my notebook and a yellow bar appeared on the top of the browser, asking me to allow the web app permanent storage on my local drive.

        navigator.webkitPersistentStorage.requestQuota(1024*1024, 
        function(grantedBytes) {
            window.requestFileSystem(window.PERSISTENT, grantedBytes, onInitFs, errorHandler);
        }, 
        function(errorCode) {
            alert("Storage not granted.");
        }
    );

    open chrome from mand line using below mand

    chrome --allow-file-access-from-files

    You should change 

    window.requestFileSystem = window.requestFileSystem || window.webkitRequestFileSystem;

    to 

    window.RequestFileSystem = window.requestFileSystem || window.webkitRequestFileSystem;

    (The R should have been capitalized.)

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