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  • client-server syncing methodology [theoretical]

    - by Kenneth Ballenegger
    I'm in the progress of building an web-app that syncs with an iOS client. I'm currently tackling trying to figure out how to go about about syncing. I've come up with following two directions: I've got a fairly simple server web-app with a list of items. They are ordered by date modified and as such syncing the order does not matter. One direction I'm considering is to let the client deal with syncing. I've already got an API that lets the client get the data, as well as do certain actions on it, such as update, add or remove single items. I was considering: 1) on each sync asking the server for all items modified since the last successful sync and updating the local records based on what's returned by the server, and 2) building a persistent queue of create / remove / update requests on the client, and keeping them until confirmation by the server. The risk with this approach is that I'm basically asking each side to send changes to the other side, hoping it works smoothly, but risking a diversion at some point. This would probably be more bandwidth-efficient, though. The other direction I was considering was a more traditional model. I would have a "sync" process in which the client would send its whole list to the server (or a subset since last modified sync), the server would update the data on the server (by fixing conflicts by keeping the last modified item, and keeping deleted items with a deleted = 1 field), and the server would return an updated list of items (since last successful sync) which the client would then replace its data with. Thoughts?

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  • Detailed error on fopen

    - by Roland
    I'm using fopen to read from a file $fh = fopen($path, 'r') or die('Could not open file'); Now I contantly get error Could not open file. I checked the file path and even changed the permissions of the file to 777. Is there a way I can get a detailed error report as why the file can't be opened similar to mysql_error()?

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  • Insert coding query in yii

    - by nerd
    I need to auto insert the next orders_id into an Orders table in a database. orders_id is not the primary Key, and it does not auto-increment I need to query the database, find the last (highest) id value, increment 1, and insert it in Orders table in database. Actually, I have a shipping action which will provide address of shipping of orders. So as soon as the user fills address form and move to payments page, I want to simultaneously fill my Orders table by max(orders_id)+1. I have built relations between Address table and Orders table but my orders Table is not getting populated. Please detail me correct codes to implement it in my controller in Yii

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  • Best way to deal with session handling in Zend Framework

    - by JACK IN THE CRACK
    So I'm starting up in Zend framework and looking to implement a site-wide "User" session.... something I can easily access from ALL modules/controllers in the application. I'm like, should I make a new namespace in the library and extend the controller, like: MyLib_Controller_Action extends Zend_Controller_Action { protected $_userSession; function preDispatch(Zend_Controller_Request_Abstract $req) { $this->_userSession = new Zend_Session_Namespace('user'); } } ANd then have all my controllers/modules/etc extend from that? Or should I create a Plugin or what? How would you go about making this plugin to pass the user session to the controller? Or do I do it in the bootstrap?? Again how to pass to controller? Also should I use Zend_Session_Namespace or Zend_Http_Cookie and also how do I encrypt and xss clean the cookie or is that did automagically?

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  • Getting content from PHP: Trouble with POST and query.

    - by vgm64
    Apologies for my longest question on SO ever. I'm trying to interface with a php frontend for a mysql database in ROOT (a CERN framework in C++ for high energy physics analysis). To start off with, I tried to get this php interface to play nice with wget and curl first because I'm more familiar with them. The following command works: wget --post-data "hostname=localhost:3306&un=joeuser&pw=psswd&myquery=show_spazio_databases;" http://some.host.edu/log/log_query_matlab.php The results are: database1 database2 That's good. If I leave out the --post-data then I get the result: Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'admin'@'localhost' (using password: NO) in /log/log_query_matlab.php on line 6 i'm dead! Access denied for user 'admin'@'localhost' (using password: NO) Warning: mysql_query() [function.mysql-query]: Access denied for user 'admin'@'localhost' (using password: NO) in /log/log_query_matlab.php on line 29 Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in /log/log_query_matlab.php on line 29 I have access to the php script (read only), but the error itself isn't too important. What matters it that using ROOT, I use a function called as socket.SendRaw(message, message.Length()) (socket is a TSocket) and this gives me the same "error" as wget without the post data switch if my "message" is "POST http://some.host.edu/log/log_query_matlab.php?hostname=localhost:3306&un=joeuser&pw=psswd&myquery=show_spazio_databases" This may be in vain, but does someone knows a way I should format the "message" that includes something that is equivalent to the --post-data switch. Or, is there a standard way to format POST requests in a single line (I've seen multi-line stuff. Is that right?) Sorry I'm clueless! PS. The mysql query is show databases but the space has been replaced with _spazio_, Italian for space. The author of the db and php interface requires it (and various replacements for symbols), but has anyone seen this before? Trying to troubleshoot that was terrible!

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  • Pear MDB2 class and raiserror exceptions in MSSQL

    - by drholzmichl
    Hi, in MSSQL it's possible to raise an error with raiserror(). I want to use a severity, which doesn't interrupt the connection. This error is raised in a stored procedure. In SQL Management Studio all is fine and I get my error code when executing this SP. But when trying to execute this SP via MDB2 in PHP5 this doesn't work. All I get is an empty array. MDB2 object is created via (including needed options): $db =& MDB2::connect($dsn); $db->setFetchMode(MDB2_FETCHMODE_ASSOC); $db->setOption('portability',MDB2_PORTABILITY_ALL ^ MDB2_PORTABILITY_EMPTY_TO_NULL); The following works (I get a PEAR error): $db->query("RAISERROR('test',11,0);"); But when calling a stored procedure which raises this error via $db->query("EXEC sp_raise_error"); there is not output. What's wrong?

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  • whmcs emails problem

    - by megatr0n
    I am testing out the order process for a test webhost package I have already setup in whmcs. I have it set to automatically setup product upon first payment. When the order goes completes whmcs sends out only four emails to the new customer: "Order Confirmation", "Customer Invoice", "Invoice Payment Confirmation" and "Welcome". It does not send out a "New Account Information" email, which should contain the login details for cpanel. I can successfully log into the client area but not cPanel. I checked the account from my administrator area and I see where it says active and paid also. I have tried several times to setup a test account to see if it would send the email with the cpanel login but it never sends it, though it sends all others. Reply With Quote

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  • How to preserve &amp; in <pre><code>

    - by Marcy Sutton
    I am having trouble preserving an ampersand in a code example on my blog, because all HTML entities start with &. Any tips? For example: <pre> <code> $pageTitle = str_replace('&', ' &amp;', $page->attributes()->title); </code> </pre> Renders as: $pageTitle = str_replace('&', '&', $page->attributes()->title);

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  • Store GZIP:ed text in mysql?

    - by Industrial
    Hi! Is it a common thing for bigger applications and databases to GZIP text data before inserting it to the database? I'll guess that any full-text search on the actual text field will not be working before unzipping it again? Thansks

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  • Preventing the opening of a form on a add button click

    - by Jonathan
    Hey guys, Did you guys know how to prevent the open of a Form when I click on a add button? Maybe using beforeShowForm? function(formid) { if(jQuery('#gridap').getGridParam('selrow')) { idgridap=jQuery('#gridap').getGridParam('selrow'); jQuery('#FK_numerocontrato_ap',formid).val(idgridap).attr('readonly','readonly'); } else { // I want to prevent the openning of the add form here and maybe show an alert using the "alertcap" } } CHECAROW; $grid->setNavEvent('add','beforeShowForm',$checarowid); BTW, there's a way to call the alertmod of jqgrid and add a custom message to it? tks!

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  • How can I speed up CURL tasks?

    - by embedded
    I'm using CURL to fetch some data from user accounts. First it logs in and then redirect to another URL where the data resides. My stats showed that it took an average of 14 seconds to fetch some data spread over 5 pages. I would like to speed things up, my questions are: Is it possible to see how much each step takes? Do you know how could I speed up/enhance CURL? Thanks

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  • Deferring frequent updates in MySQL

    - by cdecker
    I have frequent updates to a user table that simply sets the last seen time of a user, and I was wondering whether there is a simple way to defer them and group them into a single query after a short timeout (5 minutes or so). This would reduce queries on my user database quite a lot.

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  • Machine restricted login access

    - by Sunil Shenoy
    I am working on a project that has a requirement such that login details can only be accessed from one machine at one time. For example, if I grant you access to my website and you login from your home machine, the system will store this settings in a cookie/database. Now if you try the same login details on your work machine or any other machine, the system will not let you log into the system. The login will now only work from home machine. Any suggestions on how to achieve this would be helpful. Any resources you can point me towards would also be appreciated.

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  • compare previous ENCRYPT() call with new ENCRYPT() call mysql

    - by contagious
    I'm storing a string in mysql with the ENCRYPT() function. I want to fetch a row where that string is matched, but the new ENCRYPT() call gives me a different value, so they never match. This is expected as i'm not (and can't) give it a consistent salt: http://dev.mysql.com/doc/refman/5.0/en/encryption-functions.html#function_encrypt If no salt argument is given, a random value is used. This is the query i'm running that returns empty: SELECT * FROM `table` WHERE ENCRYPT('string') = `enc_string` I know this is possible because this is used by a 3rd party app, but I can't find their query where they do this. Is there a way to force ENCRYPT to use the previous salt, or predict it?

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  • unexpected T_TRY, expecting T_FUNCTION error message, not sure why ?

    - by Rachel
    I am getting unexpected T_TRY, expecting T_FUNCTION error message and am not sure as too why am getting that, can't we use try and catch block inside class like this: class Processor { protected $dao; protected $fin; try { public function __construct($file) { //Open File for parsing. $this->fin = fopen($file,'w+') or die('Cannot open file'); // Initialize the Repository DAO. $this->dao = new Dao('some name'); } public function initiateInserts() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_inserts = $this->dao->initiateInserts($data); } } public function initiateCUpdates() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_updates = $this->dao->initiateCUpdates($data); } } public function initiateExecuteIUpdates() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_updates = $this->dao->initiateIUpdates($data); } } } catch (Exception $e) { } }

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  • Using wildcards in prepared statement - MySQLi

    - by Michael Irwin
    Hi! I'm trying to run the following query, and I'm having trouble with the wildcard. function getStudents() { global $db; $users = array(); $query = $db->prepare("SELECT id, adminRights FROM users WHERE classes LIKE ? && adminRights='student'"); $query->bind_param('s', '%' . $this->className . '%'); $query->execute(); $query->bind_result($uid, $adminRights); while ($query->fetch()) { if (isset($adminRights[$this->className]) && $adminRights[$this->className] == 'student') $users[] = $uid; } $query->close(); return $users; } I'm getting an error that states: Cannot pass parameter 2 by reference. The reason I need to use the wildcard is because the column's data contains serialized arrays. I guess, if there's an easier way to handle this, what could I do? Thanks in advance!

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  • AMFPHP Database Sessions

    - by Rick
    I am using AMFPHP w/ a Flex application and am needing to start storing the user sessions in the database instead of the filesystem. I've tried utilizing the session save handler function but no matter what I do it still ends up storing the files on the filesystem. Any ideas?

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  • Zend Form Radio Elements, using images instead of default radio elements.

    - by Davy
    Hello, Ultimately here is my goal. Using Zend_Form I want to turn this idea http://www.sohtanaka.com/web-design/fancy-thumbnail-hover-effect-w-jquery/ into a list of radio buttons. Kind of using this concept. http://theodin.co.uk/tools/tutorials/jqueryTutorial/fancyRadio/ I know there has to be a way to do this but I can't seem to figure anything out! Any ideas? Thanks! -d

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  • How to get query result even if JOIN hasn't found any results?

    - by user1734651
    I want select data for user, and join another info from other table that related to the user. The problem is that this extra data not always exist for any user, just for few. How can I write a query that will return NULL for not found data, instead just return null for the whole query? SELECT a.*, b.* FROM user AS a LEFT JOIN extra AS b ON (a.userid = b.userid) WHERE a.userid = {$userid} LIMIT 1 When extra data found for the user, I get the resource as expected. If not, I get NULL for the whole query. Bottom line, I don't care if "extra" exist for the user or not, if yes - select it as well, if not - ignore that.

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  • Retrieving ids of chid divs using jquery?

    - by user187580
    Hello, Please have a look on the code below .. <div id="click_me">Save</div> <div id="blocks_sortable"> <div id="block_1"> <h2>Block 1</h2> <div class="items_sortable connectedSortable"> <div id="item_1"> <span>Item 1</span></div> <div id="item_2"> <span>Item 2</span></div> <div id="item_3"> <span>Item 3</span></div> </div> </div> <div id="block_2"> <h2>Block 2</h2> <div class="items_sortable connectedSortable"> <div id="item_4"> <span>Item 4</span></div> <div id="item_5"> <span>Item 5</span></div> <div id="item_6"> <span>Item 6</span></div> </div> </div> </div> <script> $("#click_me").click(function() { var result = $("#blocks_sortable > div"); for(var i=0; i<result.length; i++){ var str = ""; var str2 = ""; var block = result[i]; //div object //retrieve block id and create the string with id str += "block="+$(block).attr("id")+"&items="; //trying to select all the items of the current Block var result2 = $(block+" > div"); for(var j=0; j<result2.length; j++){ var item = result2[j]; str2 += $(item).attr("id")+","; } //end for items str = str+str2; // looking for a final string in the format of .. block=block_1&items=item_1,item_2,item_3 for loop 1 alert(str); } }); </script> It is not working. Is there any easier and working solution to get these ids. Please help. Thank you.

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  • What to name this class?

    - by orlandu63
    (This is not an interface: I simply omitted the method bodies) class _ { protected $_data = array(); function __construct($data); function set($name, $value); function get($name); function __set($name, $value); function __get($name); //aliases for their respective non-magic methods. # and some other generic methods } Essentially it's a class that provides a magical object-oriented reusable access layer to some data. I've considered DataLayer, DataObject and some others; I'd like to hear some suggestions from someone who's more terminologically savvy.

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  • Email Tracking - GMail

    - by Abs
    Hello all, I am creating my own email tracking system for email marketing tracking. I have been able to determine each persons email client they are using by using the http referrer but for some reason GMAIL does not send a HTTP_REFERRER at all! So I am trying to find another way of identifying when gmail requests a transparent image from my server. I get the following headers print_r($_SERVER);: DOCUMENT_ROOT = /usr/local/apache/htdocs GATEWAY_INTERFACE = CGI/1.1 HTTP_ACCEPT = */* HTTP_ACCEPT_CHARSET = ISO-8859-1,utf-8;q=0.7,*;q=0.3 HTTP_ACCEPT_ENCODING = gzip,deflate,sdch HTTP_ACCEPT_LANGUAGE = en-GB,en-US;q=0.8,en;q=0.6 HTTP_CONNECTION = keep-alive HTTP_COOKIE = __utmz=156230011.1290976484.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utma=156230011.422791272.1290976484.1293034866.1293050468.7 HTTP_HOST = xx.xxx.xx.xxx HTTP_USER_AGENT = Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.237 Safari/534.10 PATH = /bin:/usr/bin QUERY_STRING = i=MTA= REDIRECT_STATUS = 200 REMOTE_ADDR = xx.xxx.xx.xxx REMOTE_PORT = 61296 REQUEST_METHOD = GET Is there anything of use in that list? Or is there something else I can do to actually get the http referrer, if not how are other ESPs managing to find whether gmail was used to view an email? Btw, I appreciate it if we can hold back on whether this is ethical or not as many ESPs do this already, I just don't want to pay for their service and I want to do it internally. Thanks all for any implementation advice. Update Just thought I would update this question and make it clearer in light of the bounty. I would like to find out when a user opens my email when sent to a GMail inbox. Assume, I have the usual transparent image tracking and the user does not block images. I would like to do this with the single request and the header details I get when the transparent image is requested.

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  • Pervasive & Linux

    - by Omega
    I'm interested in quering a Pervasive DB server running on a Windows platform from Linux. Would anyone happen to know if this is possible, what's required and what resources there are for me to read up on it? Thanks!

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