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  • Ajax: distinguish old posts and new posts.

    - by xRobot
    Hi at all, I have created a very simple blog at www.example.com with a only one page. When I connect to www.example.com I see all posts inserted in the database ( in mysql ). Now I want that every 60 seconds an ajax request check in the database if there are new posts. If there are new posts these will be inserted at the top above the old posts. This is my question: How can I through Ajax retrieve only new posts ( and so distinguish old posts and new posts ) ?

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  • PHP, Codeigniter: How to Set Date/Time based on users timezone/location globally in a web app?

    - by Abs
    Hello all, I have just realised if I add a particular record to my MySQL database - it will have a date/time of the server and not the particular user and where they are located which means my search function by date is useless! As they will not be able to search by when they have added it in their timezone rather when it was added in the servers timezone. Is there a way in Codeigniter to globally set time and date specific to a users location (maybe using their IP) and every time I call date() or time() that users timezone is used. What I am actually asking for is probably how to make my application dependent on each users timezone? Maybe its better to store each users timezone in their profile and have a standard time (servers time) and then convert the time to for each user? Thanks all

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  • Excel / VB - How do I loop through each row/column and do formatting based on the value?

    - by Johnny 5
    Here's what I need to do: 1) Loop through every cell in a worksheet 2) Make formatting changes (bold, etc) to fields relative to each field based on the value What I mean is that if a field has a value of "foo", I want to make the field that is (-1, -3) from it bold, etc. I tried to do this with the following script with no luck. Thanks Johnny Pseudo Code to Explain: For Each Cell in WorkSheet If Value of Cell is 'Subtotal' Make the cell 2 cells to the left and 1 cell up from here bold and underlined End If End ForEach The Failed Macro (I don't really know VB at all): Sub Macro2() ' ' ' Dim rnArea As Range Dim rnCell As Range Set rnArea = Range("J1:J2000") For Each rnCell In rnArea With rnCell If Not IsError(rnCell.Value) Then Select Case .Value Case "000 Total" ActiveCell.Offset(-1, -3).Select ActiveCell.Font.Underline = XlUnderlineStyle.xlUnderlineStyleSingleAccounting End Select End If End With Next End Sub

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  • Why is SwiftMailer throwing "Internal Server Error"?

    - by Josamoto
    I am using Symfony + SwiftMailer and getting the following error from SwiftMailer: 500 | Internal Server Error | Swift_TransportException Expected response code 220 but got code "", with message "" and can't figure out why. I am using hMailServer on my local machine, and have setup my factories.yml file (as I'm using Symfony) as follows: mailer: class: sfMailer param: logging: %SF_LOGGING_ENABLED% charset: %SF_CHARSET% delivery_strategy: realtime transport: class: Swift_SmtpTransport param: host: splodge.loc port: 25 encryption: ~ username: ~ password: ~ I'm using the following code to send: $message = $this->getMailer()->compose( '[email protected]', '[email protected]', 'Reset Password', 'Message' ); $result = $this->getMailer()->send($message); Has anyone had an issue like this before? I have found that sometimes, and very randomly, the send goes through, but every other time, I get the above error message. So constantly refreshing the page that sends the mail, fails unpredictably, and as the code sometimes works, it's kinda hard to figure out what's wrong. Any help will be highly appreciated!

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  • What is your development checklist for Java low-latency application?

    - by user49767
    I would like to create comprehensive checklist for Java low latency application. Can you add your checklist here? Here is my list 1. Make your objects immutable 2. Try to reduce synchronized method 3. Locking order should be well documented, and handled carefully 4. Use profiler 5. Use Amdhal's law, and find the sequential execution path 6. Use Java 5 concurrency utilities, and locks 7. Avoid Thread priorities as they are platform dependent 8. JVM warmup can be used As per my definition, low-latency application is tuned for every Milli-seconds.

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  • Debug an Eclipse plugin in a different language?

    - by david
    I'm trying to debug an Eclipse plug-in when it is running in another language (japanese). The problem I'm encountering is: I can't get the Eclipse debugger to run another Eclipse instance in another language. I've got all my strings externalized to resource bundles ... and, when the plug-in is installed in Eclipse on a machine that has it's default language set to Japanese, it runs OK ... but there are a few problems that I need to resolve. I've tried setting the Eclipse -nl parameter to ja_JP along with '-Duser.language=ja -Duser.country=JP' on the VM arguments, but every time Eclipse is launched, everything is in English. Any suggestions on how I can get the debugger to launch the Eclipse instance in Japanese?

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  • Web Page Rendering Capture

    - by Chaitanya
    I start with describing the problem itself. Rather than a problem I'm looking for a better solution. I have a asp.net page which has a bunch of images and a link underneath it, Each image is infact the latest rendering of the link underneath it. I scheduled a bat script which runs every hour to fetch the images through IECapt a web page rendering capture utility. One thing am annoyed about this utility is it takes a lot of time for the 20 images I have and for few because of the flash content it misses to take the actual screenshot of the website. Now I like to know can this rendering be done by traditional programming am not interested in using any utilities. I'm interested in trying this. The solution need not be necessarily a C# based am ready to try in any other language. Because it gives me a chance to learn. Thank you.

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  • AJAX: how to get progress feedback in web apps, and to avoid timeouts on long requests?

    - by David Dombrowsky
    This is a general design question about how to make a web application that will receive a large amount of uploaded data, process it, and return a result, all without the dreaded spinning beach-ball for 5 minutes or a possible HTTP timeout. Here's the requirements: make a web form where you can upload a CSV file containing a list of URLs when the user clicks "submit", the server fetches the file, and checks each URL to see if its alive, and what the title tag of the page is. the result is a downloadable CSV file containing the URL, and the result HTTP code the input CSV can be very large ( 100000 rows), so the fetch process might take 5-30 minutes. My solution so far is to have a spinning javascript loop on the client site, which queries the server every second to determine the overall progress of the job. This seems kludgy to me, and I'm hesitant to accept this as the best solution. I'm using perl, template toolkit, and jquery, but any solution using any web technology would be acceptable.

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  • Double title bar issue iPhone app

    - by Nick Brunch
    I have noticed that whenever a phone call comes in while my app is in use (Or I simulate in-call status bar using the simulator), and the phone call ends, I end up with a double status bar in my app. The status bar goes away if I click any other tab and come back to the original tab (my app has a UITTabBar in it). I have tried so many options that I am losing track now. The most I have read are to set your UIView's size to be flexible in interface builder but nothing seems to work. Please look at the screenshots. I am pasting a default view of the sizing options in interface builder but believe me I have tried every single configuration option there.

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  • Exception when creating new Iphone/Ipad window in MonoDevelop

    - by Jones D R
    I get this exception every time i try to create a new Iphone/Ipad solution? I have been following the guides and have both XCode, interface builder and IOS SDK installed. Any clues are welcome:) System.ApplicationException: Can't create display binding for mime type: application/vnd.apple-interface-builder at MonoDevelop.Ide.Gui.Workbench.NewDocument (System.String defaultName, System.String mimeType, System.IO.Stream content) [0x00000] in :0 at MonoDevelop.Ide.Templates.FileTemplate.CreateFile (MonoDevelop.Ide.Templates.FileDescriptionTemplate newfile, MonoDevelop.Projects.SolutionItem policyParent, MonoDevelop.Projects.Project project, System.String directory, System.String language, System.String name) [0x00000] in :0 at MonoDevelop.Ide.Templates.FileTemplate.Create (MonoDevelop.Projects.SolutionItem policyParent, MonoDevelop.Projects.Project project, System.String directory, System.String language, System.String name) [0x00000] in :0 at MonoDevelop.Ide.Projects.NewFileDialog.OpenEvent (System.Object sender, System.EventArgs e) [0x00000] in :0

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  • x264 IDR access unit with a SPS and a PPS

    - by Gcoop
    Hi All, I am trying to encode video in h.264 that when split with Apples HTTP Live Streaming tools media file segmenter will pass the media file validator I am getting two errors on the split MPEG-TS file WARNING: Media segment contains a video track but does not contain any IDR access unit with a SPS and a PPS. WARNING: 7 samples (17.073 %) do not have timestamps in track 257 (avc1). After hours of research I think the "IDR" warning relates to not having keyframes in the right place on the segmented MPEG-TS file so in my ffmpeg command I set -keyint_min 1 to ensure keyframes where at every frame, but this didn't work. Although it would be great to get an answer, if anyone can shed any light on what a "IDR access unit with a SPS and a PPS" is or what the timestamps warning means I would be very grateful, thanks.

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  • djb2 Hash Function

    - by Jainish
    I am using the djb2 algorithm to generate the hash key for a string which is as follows hash(unsigned char *str) { unsigned long hash = 5381; int c; while (c = *str++) hash = ((hash << 5) + hash) + c; /* hash * 33 + c */ return hash; } Now with every loop there is a multiplication with two big numbers, After some time with the 4th of 5th character of the string there is a overflow as the hash value becomes huge What is the correct way to refactor so that the hash value does not overflow and the hashing also happens correctly

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  • Undefined variable from import when using wxPython in pydev

    - by Bibendum
    I just downloaded wxPython, and was running some of the sample programs from here. However, on every line that uses a variable from wx.*, I get a "Undefined variable from import error" For example, the following program generates five errors on lines 1,4,8, and two on line 5: import wx class MyFrame(wx.Frame): """ We simply derive a new class of Frame. """ def __init__(self, parent, title): wx.Frame.__init__(self, parent, title=title, size=(200,100)) self.control = wx.TextCtrl(self, style=wx.TE_MULTILINE) self.Show(True) app = wx.App(False) frame = MyFrame(None, 'Small editor') app.MainLoop() The program, however, compiles and runs perfectly. I haven't made any significant modifications to pydev or eclipse, and the wxPython install is fresh.

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  • Opening a local file in Eclipse from the web

    - by Victor Nicollet
    Right now, when I notice a problem on a page on my PHP web site, I have to look at the URL, mentally deduce what file is responsible for displaying that page, then navigate the Eclipse PDT file tree to open that file. This is annoying and uses brain power that could have been applied to solving the issue instead. I would like my PHP web site to display on every page a link that I could click to automatically open the correct file in Eclipse. I can easily compute the complete absolute path for the file I need to open (for example, open C:/xampp/htdocs/controllers/Foo/Bar.php when visiting /foo/bar), and I can make sure that Eclipse is currently open with the correct project loaded, but I'm stuck on how I can have Firefox/Chrome/IE tell Eclipse to open that specific file.

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  • Flex Flash Action Script Form Events

    - by peiklk
    Doing some development in Flash Builder 4 using Action Script 3.0. I'm trying to have some code run each time the form is displayed. The form is not always recreated, but sometimes hidden and reused. Visual Basic used to have an Activate event that does similar to what I want. I tried Render, but that fires every time the form changes (via click, text-edit, etc.) We tried the FlexEvent.ADD, but it only fires when the form is first created, same as creation_complete. Is there a good resource that shows the form "life cycle" and all the events and when they are fired and in what order? TIA! NOTE: I'm trying to get our forms to close when the ESC is pressed.

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  • How to debug applications using COM interfaces?

    - by Eric
    I' building an application using C# which will use CATIA COM modules. When I import the COM inside my c# project, I think that Visual C# express generates the Interop automagically for me. All of this works correctly. However, when I try to debug the application and use watches during runtime, every object is a System.__ComObject and I cannot get their "real" value. Is there a way to tell the debugger the types of my COM objects? The goal is to get more familiar with this new API I don't know really well. Sometimes its rather hard to guess the correct types for everything since the interface hierarchy is quite deep

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  • use of EntityManagerFactory causing duplicate primary key exceptions

    - by bradd
    Hey guys, my goal is create an EntityManager using properties dependent on which database is in use. I've seen something like this done in all my Google searches(I made the code more basic for the purpose of this question): @PersistenceUnit private EntityManagerFactory emf; private EntityManager em; private Properties props; @PostConstruct public void createEntityManager(){ //if oracle set oracle properties else set postgres properties emf = Persistence.createEntityManagerFactory("app-x"); em = emf.createEntityManager(props); } This works and I can load Oracle or Postgres properties successfully and I can Select from either database. HOWEVER, I am running into issues when doing INSERT statements. Whenever an INSERT is done I get a duplicate primary key exception.. every time! Can anyone shed some light on why this may be happening? Thanks -Brad

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  • Database design - alternatives for Entity Attribute Value (EAV)

    - by Bob
    Hi, see http://stackoverflow.com/questions/695752/product-table-many-kinds-of-product-each-product-has-many-parameters for similar topic. My question: i want to design a database, that will be used for a production facility of different types of products where each product has its own (number of) parameters. because i want the serial numbers to be in one tabel for overview purposes i have a problem with these different paraeters . One solution could be EAV, but it has its downsides, certainly because we have +- 5 products with every product +- 20.000 serial numbers (records). it looks a bit overkill to me... I just don't know how one could design a database so that you have an attribute in a mastertable that says: 'hey, you could find details of this record in THAT detail-table". 'in a way that you qould easely query the results) currenty i am using Visual Basic & Acces 2007. but i'm going to Visual Basic & MySQL. thanks for your help. Bob

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  • how u guys learn coding and programming

    - by dramasea
    Hi, I am a newbie on programming and currently still learning. Can you contribute your opinion on how to learn that faster. I learn every single element of the language such as Javascript date object methods and properties: http://www.w3schools.com/jsref/jsref_obj_date.asp but it is pretty much all the same, should i read through it? or i just left it. You know that's very boring with just reading. So, can I ask those professional programmer, do you also read these when you learn programming?

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  • Career advice for a frustrated newbie programmer.

    - by Satoru.Logic
    Hi, all. This is my first year as a programmer. The programming language that I'm most familiar with is Python. I am maintaining a web2py based legacy system, alone, which means I have to grow up as an all-rounder. The original programmers on this project are nowhere to find, and there are hardly any usable documents about requirements or anything. I find it very frustrating every time I hear the users criticize the system, and I can't help explaining that "that was not my fault, those mess was there even before I entered this company." I wonder what should I do with this situation. Please give me some advice, thanks in advance.

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  • What is your motivation?

    - by vava
    As software developers we all know that motivation matters. Without it we could just stare into the monitor all day long and do nothing. There are some tricks to get yourself motivated like talking to people or doing the fun part of the project, but they do not always work. In the mean time I started to notice that I am most productive when I could see the person who is appreciating my work. The user, who is using the software and enjoying it. Because if there's none, what's the point of writing this code? So I was wondering, what makes you be at your top, is it the users, your fellow coders or maybe the money you get? PS. I know there's quite a few questions about motivation but they all about overcoming current situation. What I want to hear is what makes you come to the office every day, what you enjoy the most in your job, what makes you want to write this code and do it as fast as you possible could.

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  • Build and render infinite hierarchical category tree from self-referential category table

    - by FreshCode
    I have a Categories table in which each category has a ParentId that can refer to any other category's CategoryId that I want to display as multi-level HTML list, like so: <ul class="tree"> <li>Parent Category <ul> <li>1st Child Category <!-- more sub-categories --> </li> <li>2nd Child Category <!-- more sub-categories --> </li> </ul> </li> </ul> Presently I am recursively rendering a partial view and passing down the next category. It works great, but it's wrong because I'm executing queries in a view. How can I render the list into a tree object and cache it for quick display every time I need a list of all hierarchical categories?

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  • How to prevent Excel from wanting to start in Safe Mode?

    - by paulland
    We have a background process that calls Excel for generation of report spreadsheets. Occasionally, a crash or inadvertent server reboot will occur while Excel is running. The first launch of Excel after the restart brings up the dialog box (paraphrasing here) "Would you like to start Excel in safe mode?" (Yes/No) The issue is that our background app can't handle this dialog box, and acts as if Excel will not start properly, and the background jobs fail as a result. I can find CL switches for starting Excel in safe mode, but I can't find anything that will instruct Excel to always start in normal mode without that prompt dialog. (I don't have access to the other program's code, so I can't make it pass through a "Yes" value if it runs into that box.) Is there a registry hack or some other way I can force Excel into normal mode every time it's called?

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  • Printing Stdout In Command Line App Without Overwriting Pending User Input

    - by Chris S
    In a basic Unix-shell app, how would you print to stdout without disturbing any pending user input. e.g. Below is a simple Python app that echos user input. A thread running in the background prints a counter every 1 second. import threading, time class MyThread( threading.Thread ): running = False def run(self): self.running = True i = 0 while self.running: i += 1 time.sleep(1) print i t = MyThread() t.daemon = True t.start() try: while 1: inp = raw_input('command> ') print inp finally: t.running = False Note how the thread mangles the displayed user input as they type it (e.g. hell1o wo2rld3). How would you work around that, so that the shell writes a new line while preserving the line the user's currently typing on?

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  • Is it possible to find the KNN for a node that is *IN* the KD-tree?

    - by Stephen
    Hi there, Trying to create a KNN search using a KD-tree. I can form the KD-tree fine (or at least, I believe I can!). My problem is that I am searching to find the closest 2 neighbours to every point in a list of points. So, is there a method to find the K nearest neighbours to a point using a KD tree even if the point is actually IN the tree, or do I need to construct a seperate KD tree for each point, leaving out the point that I wish to search for? My implementation language is C++, but I am more looking for either an algorithm or general help, thanks! Thanks, Stephen

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