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• What exactly is GRASP's Controller about?

  - by devoured elysium

  What is the idea behind Grasp's Controller pattern? My current interpretation is that sometimes you want to achieve something that needs to use a couple of classes but none of those classes could or has access to the information needed to do it, so you create a new class that does the job, having references to all the needed classes(this is, could be the information expert). Is this a correct view of what Grasp's Controller is about? Generally when googling or SO'ing controller, I just get results about MVC's (and whatnot) which are topics that I don't understand about, so I'd like answers that don't assume I know ASP.NET's MVC or something :( Thanks

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• mod_rewrite: no ? and # in REQUEST_URI

  - by tshabala

  Hello. What I'm trying to do: have pretty URLs in the format 'http://domain.tld/one/two/three', that get handled by a PHP script (index.php) by looking at the REQUEST_URI server variable. In my example, the REQUEST_URI would be '/one/two/three'. (Btw., is this a good idea in general?) I'm using Apache's mod_rewrite to achieve that. Here's the RewriteRule I use in my .htaccess: RewriteRule ^/?([a-zA-Z/]+)/?$ /index.php [NC,L] This works really well thus far; it forwards every REQUEST_URI that consists of a-z, A-Z or a '/' to /index.php, where it is processed. Only drawback: '?' (question marks) and '#' (hash keys) seem to still be allowed in the REQUEST_URI, maybe even more characters that I've yet to find. Is it possible to restrict those via my .htaccess and an adequate addition to the RewriteRule? Thanks!

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• AddClass onClick won't work

  - by QTaylor

  I'm having some problems getting some simple jQuery to work; I'm trying to add a class called fadeInLeft to my body element on click. Here's the code: $('.contact-button').click(function() { $('body').addClass('fadeInLeft') }); HTML (from comment left by OP, below): <div id="contact" class="bounceInRight animated four"> <a href="#" class="contact-button"> Say Hello </a> </div><!--End of contact--> contact-button is the class of the link, fadeInLeft is the class I want to add when the link is clicked. Any idea why this would not work ?

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• Network license control for a Java application

  - by user1461615

  I have been tasked with providing some form of network license control for a Java application. The app would be stored on a network drive and run from a client machine. The basic idea is that it will be able to work out how many times it is being run concurrently and prevent the N+1th user from running the software where N is the number of concurrent licenses the customer has purchased. Is this possible somehow with a Java application? I implemented a "solution" which relied on multi-cast UDP communication between the running instances of the application but this didn't work because on most networks this kind of communication is blocked by security measures. Is there a better way? I don't even mind if it requires JNI/JNA. N.B. The solution does not have to be that sophisticated or highly secure.

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• Java: Using multiple Threads to paint simultaniously on a JPanel

  - by user347217

  I have a JPanel on which I wish to have several threads painting "animations" on. An "animation" consists of a JLabel with an ImageIcon on it, which is being moved from one area of the screen to another area. Now, problem is - I want several such animations to be portrayed on screen by those threads mentioned. Problem is - the JPanel's "paint()" method can only be trigged by one thread at a time - causing the animations to execute serially, instead of in a parallel way. Any idea how to have several such animations on screen at the same time?

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• PHP Detect Pages Genre/Category

  - by Alexwhin

  Hey, I was wondering if their was any sort of way to detect a pages genre/category. Possibly their is a way to find keywords or something? Unfortunately I don't have any idea so far, so I don't have any code to show you. But if anybody has any ideas at all, let me know. Thanks! EDIT @Nican Perhaps their is a way to set, let's say 10 category's (Entertainment, Funny, Tech). Then creating keywords for these category's (Funny = Laughter, Funny, Joke etc). Then searching through a webpage (maybe using a cUrl) for these keywords and assigning it to the right category. Hope that makes sense.

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• jQuery sequence

  - by Happy

  $(".item").each(function(){ var item_link = $(this).find("a").attr("href"); $(this).prepend('<div class="img_url"></div>'); var img_url = $('div.img_url', this); $.get(item_link, function(data) { var src = $('.poster img', data).attr('src'); img_url.html(src); }); }); Each .get should be started after the previous is finished. Now all the .get start in one time. Any idea?

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• [C++] Passing around objects to network packet handlers ?

  - by xeross

  Hey, I've been writing a networking server for a while now in C++ and have come to the stage to start looking for a way to properly and easily handle all packets. I am so far that I can figure out what kind of packet it is, but now I need to figure out how to get the needed data to the handler functions. I had the following in mind: Have a map of function pointers with the opcode as key and the function pointer as value Have all these functions have 2 arguments, packet and ObjectAccessor ObjectAccessor class contains various functions to fetch various items such as users and alike Perhaps pass the user's guid too so we can fetch it from the objectaccessor I'd like to know the various implementations others have come up with, so please comment on this idea and reply with your own implementations. Thanks, Xeross

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• How to change the elements in the page base on user who is logged in

  - by user225269

  Please give me an idea on how to display elements in a page depending on who is logged in. For example, a user or an administrator. I'm thinking of something like this but I get a parse error, what do I lack in this code?: <?php session_start(); if (!(isset($_SESSION['loginAdmin']) && $_SESSION['loginAdmin'] != '')) { header ("Location: loginam.php"); } if else (!(isset($_SESSION[['loginAdmin']) && $_SESSION['loginAdmin'] =='')) { ?> <?php include('head2.php'); ?> } <?php if (!(isset($_SESSION['login']) && $_SESSION['login'] != '')) { header ("Location: login.php"); } if else (!(isset($_SESSION[['login']) && $_SESSION['login'] =='')) { ?> <?php include('head3.php'); } ?> Please help

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• Value [...] not a valid choice, django-updown

  - by tamara

  I am trying to implemet django-updown https://github.com/weluse/django-updown. When I try to add vote trough the admin panel it says Value 1 not a valid choice. This is the models.py from the application: _SCORE_TYPE_CHOICES = ( ('-1', 'DISLIKE'), ('1', 'LIKE'), ) SCORE_TYPES = dict((value, key) for key, value in _SCORE_TYPE_CHOICES) class Vote(models.Model): content_type = models.ForeignKey(ContentType, related_name="updown_votes") object_id = models.PositiveIntegerField() key = models.CharField(max_length=32) score = models.SmallIntegerField(choices=_SCORE_TYPE_CHOICES) user = models.ForeignKey(User, blank=True, null=True, related_name="updown_votes") ip_address = models.IPAddressField() date_added = models.DateTimeField(default=datetime.datetime.now, editable=False) date_changed = models.DateTimeField(default=datetime.datetime.now, editable=False) Do you have an idea what could be wrong?

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• Preventing SQL injecting in a database class

  - by Josh

  I'm building a database class and thought it'd be a good idea to incorporate some form of SQL injection prevention (duh!). Here's the method that runs a database query: class DB { var $db_host = 'localhost'; var $db_user = 'root'; var $db_passwd = ''; var $db_name = 'whatever'; function query($sql) { $this->result = mysql_query($sql, $this->link); if(!$this->result) { $this->error(mysql_error()); } else { return $this->result; } } } There's more in the class than that but I'm cutting it down just for this. The problem I'm facing is if I just use mysql_real_escape_string($sql, $this->link); then it escapes the entire query and leads to a SQL syntax error. How can I dynamically find the variables that need to be escaped? I want to avoid using mysql_real_escape_string() in my main code blocks, i'd rather have it in a function. Thanks.

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• WCF Rest Service Date issue

  - by Ranish

  I am working on a WCF Rest service for a iPhone application. I have a WebGet method which returns a “date time”. I am using following code [OperationContract] [WebGet(ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "GetDate")] DateTime GetDate(); When I tried to call the method using Mozilla rest client I am able to get following result "/Date(1355116291037+0530)/" But the problem is when this method consume from the iPhone side we are getting another date time value( there is around 5:30 hours difference) . Any one have any idea regarding this issue,Please help me Thanks in advance

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• Read external HTML page and then find data within

  - by inthewayboy

  I'm playing around with an idea, and I'm stuck at this one part. I want to read an external HTML page and then extract the data held within two <dd> tags. I've been using file_get_contents with good results, but I'm at a loss as to how to accomplish that last part. The two tags I want to extract the value from are always enclosed within a particular <div>, was wondering if that might help? In my mind it reads the entire html file into a string, then dumps all the data up until this one particular <div>, and dumps all the data after the closing </div>. Is that possible? I think this needs regex syntax which I've never used yet. So any tips, links, or examples would be great! I can provide more info as necessary.

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• read variables from file

  - by TonyVipros

  Hi, I'm trying to write a shell script to backup websites, I've got it to go through each directory in vhosts and create a new directory vhosts/{siteurl}/private/backups/ and gzip up the site into there. However, I also want it to read a file from private that will contain database name, user and password. So I can then use these to perform a mysqldump to private/backups/. The problem is that I've never written a shell script before so I've go no idea how to read variable data into my script, or how I should format the file to be read. Hope that's enough information.

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• how to detect an F5 refresh keypress event in jquery?

  - by chaonextdoor

  I noticed that jquery has a keypress function. But it seems that it can only detect keypress event of numbers and characters. It cannot detect the F5 keypress event. And What surprises me the most is everyone online says that the keyCode of F5 is 116, But when I use the jquery keypress function, it just shows that the character t has the keyCode of 116(it seems that 116 is the ascii code of lowercase t)! Can somebody give me any idea about this and how to detect the F5 event in javascript or jquery? Thanks so much in advance.

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• Calculating number of online visitors?

  - by Syom

  i need to show the number of online visitors, but there is a problem with selecting algoritm to do it! maybe i must create a table in DB, where i'll store ip addresses of visitors and time of visit! by so i can show the count of ip addresses, which's time = NOW() - 10 minutes, for example...("now()-10 minutes" is just to show the logic, i know that this is not a function:) is this goog way to go? or maybe it's better to use AJAX methods to store the data? please give me an idea. Thanks

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• c++ projects for beginners

  - by JohnWong

  So I know this is a frequent question, but I still can't find a good one. It's a 3-week internship where I get to teach high school students. I would cover basic c++ first week, and start the project second week. What I need is a project that is doable (for them) in 2 weeks. It is interesting. Somehow I want it to be interactive (something that's cool, something that we get to use a lot or something like that)? Any idea?

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• My dropdownlist is not selecting an item as expected (MVC 1)

  - by Jen

  OK so I have 2 pages where this kind of behaviour is implemented. It works on one but doesn't work in another and I have no idea why. Despite the data containing a list of selectitems and one of them is selected the dropdown list is not displaying this selection (ie. it resets to the blank item). I don't know how to further debug this. In my page: <%= Html.DropDownList("CampusId", ViewData.Model.Campuses, new { @class = "large search_box" })%> In my controller. Campuses = AdminRepository .ListAll<Campus>(a => a.Description) .ToSelectListItem<Campus>(a => a.CampusId, a => a.Description, criteria.CampusId, true); I can see that campuses does have the correct list item marked as selected - so why when it is displayed on the page is it no longer marked as selected?! I can't see anything else obviously modifying the list. Thanks :)

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• Change URL of a saved HTML file

  - by Paul Camilleri

  I am new to HTML so this question might sound a bit lame. Anyways I have a saved webpage on my desktop that when i open it in google chrome i want it to show a specific URL instead of its current location. Any ideas how i might get this to work? I tried using the history.pushState but i have no idea why it is not working. I created a simple page for now to test it: <html> <head> <script> function setURL() { history.pushState("Test","page2", "www.test.com"); } </script> </head> <body> <button type="button" onclick="setURL()">Set Url</button> </body> </html> Any help would be greatly appreciated. Thank you

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• combining two png files in android

  - by John

  I have two png image files that I would like my android app to combine problematically into one png image file and am wondering if it is possible to do so? if so, what I would like to do is just overlay them on each other to create one file. the idea behind this is that I have a handful of png files, some with a portion of the image on the left with the rest transparent and the others with an image on the right and the rest transparent. and based on user input it will combine the two to make one file to display. (and i cant just display the two images side by side, they need to be one file) is this possible and how so?

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• Does .live() binding work for jQuery in IE7?

  - by Steve

  Hi everyone, I have a piece of javascript which is supposed to latch onto a form which gets introduced via XHR. It looks something like: $(document).ready(function() { $('#myform').live('submit', function() { $(foo).appendTo('#myform'); $(this).ajaxSubmit(function() { alert("HelloWorld"); }); return false; }); }); This happens to work in FF3, but not in IE7. Any idea what the problem is?

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• JQuery animate behaviour with inline-block elements

  - by IlludiumPu36

  I'm using JQuery to animate two divs, one on top of the other, inside a another div. The effect is like a button with the top and bottom halves opening up and down to reveal some contents. The idea is to have a number of these 'buttons' in line using float:left When a button is clicked, the script checks if another button is open, if so, closes that button and opens the clicked button. This works fine, except I want to change float:left to display:inline-block on the container div class (to prevent wrapping of a number of buttons if the browser is resized). The problem is the layout of buttons breaks as JQuery animate seems to be changing the vertical position of the button containers while animating. See fiddle

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• Concatenate and group multiple rows in Oracle

  - by user1693347

  Suppose I have a table like this: NAME GROUP name1 groupA name2 groupB name5 groupC name4 groupA name3 groupC I'd like to have a result like this: GROUP NAMES groupA name1,name4 groupB name2 groupC name3,name5 If there were only one column in the table, I could concatenate the records by doing the following, but with grouping in the context, I really don't have much idea. Any suggestion is welcome, thanks in advance! Concatatenating one column table: SELECT names FROM (SELECT SYS_CONNECT_BY_PATH(names,' ') names, level FROM name_table START WITH names = (SELECT names FROM name_table WHERE rownum = 1) CONNECT BY PRIOR names < names ORDER BY level DESC) WHERE rownum = 1

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• Can't get jQuery ajax work

  - by yozloy

  I'm new to jQuery, and it really cool, but I can't get the basic ajax work, there's no error in the console ,so I don't know where goes wrong: getJSON function version: $(document).ready(function(){ $.getJSON('http://pollview:8888/js/example.json', function(data){ for(var element in data){ console.log(data[element]); } }); }); then the basic ajax version: $(document).ready(function(){ $.ajax({ url: 'http://pollview:8888/js/example.json' }).done(function(data){ alert('successful'); }); }); I get me stuck, any idea?

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• jQuery & elastic Problem

  - by Fincha

  Hello eveyone, i using elastic in my script. I have also jQuery Tabs (every will be get over AJAX and content a textarea) and a timer for Saving content all 3 minutes. So some JS code... I have 2 parts on my site, left and right. On the right side i have 2 tabs (jQuery not AJAX) with each one textarea. And Left side between 5-10 Textareas each in Tab but they gonna be loaded only if Tab is activ (AJAX). my Problem is: If i paste a lot of text in a Textarea (1000 characters) the writing get slowed, not fluid, jerky. It ist 100% the elastic problem, without elastic there no Problem while writing. Have some one an idea for the solution of this Porblem? Is it Overload?

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