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  • Change (not init) a UIBarButtonItem identifier programatically?

    - by Nebs
    In IB I can set the identifier of a UIBarButtonItem to 'play' which adds an image of a play button (right-pointing triangle). Is there a way to change this image programatically? I want to change it to 'pause' when the play button is pressed. I know you can initialize a UIBarButtonItem with an identifier but I've yet to find a way to change it after it's been initialized. Is this even possible? The only thing I can think of is to remove the old button and initialize a new one in its place, but this hardly seems efficient. Any thoughts?

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  • the best method for google indexing text content in images?

    - by dnuske
    Hi everybody, I have a webpage where I put 1 image once in a while, this is just like xkcd.com I would like to know how to let google know the text in my images. My approach is to put the text in alt html attribute, like this: <img src="http://myapokalips.com/public/cartoons/021_Robot_Tattoo.png" alt="RETARD - aw, that's a sick tattoo! - yea, bro, it means 'strength'" /> is that right? or should I put the text in some random metatag? thank you in advance.

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  • Action -methods vs public methods in PHP frameworks

    - by Tower
    There are plenty of PHP frameworks out there as many of you know, and I am interested in your thoughts on this: Zend Framework has so-called action controllers that must contain at least one action method, a method whose name ends in "Action". For example: public function indexAction() {} The word "Action" is important, without it you can't access the method directly via the URI. However, in some other frameworks like Kohana you have public and private methods, where public methods are accessible and private are not. So my question is which do you think is a better approach? From a secure point of view I would vote Zend's approach, but I am interested in knowing what others think.

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  • WCF Data Services implementation strategies.

    - by Nix
    Microsoft has done a savvy job of not outlining the actual place for data services in the wonderful world of SOA/Web dev. So my question is simple, are WCF Data Services designed to be used via clients? Or has anyone ever heard of someone using them on the server side? Simple scenario a general layered architecture using BO business objects (parenthesis indicate what is being passed between layers) (XML) WCF Service - (BO)Business Logic - (BO) Dao - Entity Framework or using data services it would be where DS BO are modeled business entities to be used in data service. (XML) WCF Service -(BO) Business Logic - (BO) WCF Data Service - (DS BO)Server I can't see a use for the later, unless there are going to be a lot of cases people would be accessing your data via your Data Service Layer vs the Service layer? Thoughts anyone? I have not seen any mention of using DS from within a Service Layer....

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  • ActionScript rotated sprite's startDrag bounds

    - by TheDarkIn1978
    when assigning a bounds to a draggable sprite, it doesn't seem to take rotation of the sprite into consideration. the code below adds a sprite to the display list, rotates it 45º, and adds a MouseEvent.MOUSE_DOWN event to allow dragging. the startDrag() method's second parameter simply returns the bounds of the stage as a rectangle. however, because of the sprite's rotation, its corners can be dragged past the bounds of the stage. any thoughts? var mySprite:Sprite = new Sprite(); mySprite.graphics.beginFill(0x0000FF, 1); mySprite.graphics.drawRect(0, 0, 200, 200); mySprite.graphics.endFill(); mySprite.rotation = 45; addChild(mySprite); mySprite.addEventListener(MouseEvent.MOUSE_DOWN, dragSprite, false, 0, true); function dragSprite(evt:MouseEvent):void { evt.target.startDrag(false, spriteBounds()); }

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  • AttributeError while adding colorbar in matplotlib

    - by bgbg
    The following code fails to run on Python 2.5.4: from matplotlib import pylab as pl import numpy as np data = np.random.rand(6,6) fig = pl.figure(1) fig.clf() ax = fig.add_subplot(1,1,1) ax.imshow(data, interpolation='nearest', vmin=0.5, vmax=0.99) pl.colorbar() pl.show() The error message is C:\temp>python z.py Traceback (most recent call last): File "z.py", line 10, in <module> pl.colorbar() File "C:\Python25\lib\site-packages\matplotlib\pyplot.py", line 1369, in colorbar ret = gcf().colorbar(mappable, cax = cax, ax=ax, **kw) File "C:\Python25\lib\site-packages\matplotlib\figure.py", line 1046, in colorbar cb = cbar.Colorbar(cax, mappable, **kw) File "C:\Python25\lib\site-packages\matplotlib\colorbar.py", line 622, in __init__ mappable.autoscale_None() # Ensure mappable.norm.vmin, vmax AttributeError: 'NoneType' object has no attribute 'autoscale_None' How can I add colorbar to this code? Following is the interpreter information: Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>>

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  • Comparison of ASP.Net Reporting Solutions

    - by Brian MacKay
    This week my team spent way too much time trying to do simple things in reporting services, and I've decided to start evaluating other options. I know there are some good options out there now that aren't too expensive. I've heard that Telerik, ActiveReports, and a few others are widely used. I was hoping to get some first hand accounts regarding reporting tools that you've used. Specifically, I definitely want to hear your thoughts about: Pain points and gotchas you ran into. Ease of use for report design. It's a little bizarre to me that Access still seems to hold the throne in this area! What's your favorite tool? Anything I've missed that seems important to you. Thanks a lot!

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  • Algorithm for analyzing text of words

    - by Click Upvote
    I want an algorithm which would create all possible phrases in a block of text. For example, in the text: "My username is click upvote. I have 4k rep on stackoverflow" It would create the following combinations: "My username" "My Username is" "username is click" "is click" "is click upvote" "click upvote" "i have" "i have 4k" "have 4k" .. You get the idea. Basically the point is to get all possible combinations of 'phrases' out of a sentence. Any thoughts for how to best implement this?

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  • Implementing google dashboard type interface in asp.net

    - by Sam_Cogan
    I'm looking at implementing a Google IG type dashboard in a .net app. There are a number of options I've found to do this, and i'm trying to establish what is going to be the best to use, in terms of speed, versatility etc. So far the options I am looking at are either to use asp.net webparts and .net Ajax, this would make it quicker to build, but I'm concerned this is going to make the application bulky and slow, or using JQuery, and either .net MVC or Webforms, to custom build an interface. Does anyone have any thoughts on what the best option may be, or any options I may have missed? All I want to do here is to allow users to customise a dashboard with a number of components (which will be user controls). I do also have access to Telerik controls, but I'm not sure if they would be any use here.

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  • Codeigniter and Paypal: How it works

    - by Abs
    Hello all, Two random question as I try to integerate Paypal IPN into my Codeigniter based web app. 1) Are these two lines the same? $data['pp_info'] = $this->input->post(); $data['pp_info'] = $_POST; 2) A user agrees to pay a monthly recurring fee to use your service using paypal - first payment you are aware they have paid as you get data returned from paypal. But how do you keep track if users has paid for the following months? How do you know the user has not cancelled from their paypal account? Thanks all for any help

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  • Jdeveloper vs java/j2ee/js+extjs ?

    - by ssgam
    Hi All, i am new to the web development environment, having came from a unix/c environment. i've been recently asked to create a web app, which i thought would require postgresql, java/j2ee, and javascript for the client interface. as i had wanted a nicer gui, i've been reading up on extjs, which looks really nice to me. a colleague mentioned that the time needed time needed to learn all these various pieces is time consuming, and Jdeveloper seems to provide most of what we'd need (i was shown a demo, which appears to be able to generate some nice web interfaces). what are the pros and cons with the different approaches ? some i can think of: - jdeveloper is an integrated ide, which creates UI easily, tightly integrated with database. (pro) - jdeveloper will be heavier? (con) - wizard generated code may be harder to refactor ? (con) - java/j2ee/js+extjs needs to develop things from ground up (con) thanks in advance for sharing your experiences and thoughts ... sam

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  • Rails migration to add boolean column to Postgres on Heroku

    - by pmc255
    I'm trying to execute a simple Rails migration to add a boolean column to an existing table. Here's the add_column call: add_column :users, :soliciting, :boolean, :null => false, :default => false However, after the migration runs (successfully, with no errors), I don't see the new column. If I go into the console and list the columns on the User table, for example, with this command: >> User.columns.each { |c| puts "#{c.name} : #{c.type}" } All the other columns show up, but not the one I just added with the migration. What's even more strange is that looking up a random user object yields the Postgres version of booleans (Ruby strings) >> User.find(1).soliciting => "t" However, the existing boolean columns all show up with standard Ruby boolean values of true and false. What's going on here? Is the migration actually complete? Why doesn't the column show up, yet is accessible in the model objects?

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  • Python-daemon doesn't kill its kids

    - by Brian M. Hunt
    When using python-daemon, I'm creating subprocesses likeso: import multiprocessing class Worker(multiprocessing.Process): def __init__(self, queue): self.queue = queue # we wait for things from this in Worker.run() ... q = multiprocessing.Queue() with daemon.DaemonContext(): for i in xrange(3): Worker(q) while True: # let the Workers do their thing q.put(_something_we_wait_for()) When I kill the parent daemonic process (i.e. not a Worker) with a Ctrl-C or SIGTERM, etc., the children don't die. How does one kill the kids? My first thought is to use atexit to kill all the workers, likeso: with daemon.DaemonContext(): workers = list() for i in xrange(3): workers.append(Worker(q)) @atexit.register def kill_the_children(): for w in workers: w.terminate() while True: # let the Workers do their thing q.put(_something_we_wait_for()) However, the children of daemons are tricky things to handle, and I'd be obliged for thoughts and input on how this ought to be done. Thank you.

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  • Java 1.4 to Java 6 migration

    - by joesatch
    Hi, I have some enterprise apps running on Java 1.4. They mostly invoke Stored Proces on DB, Parse XML files (Not too large files, at the most few megs), read/write from/to disk. We have a requirement where now we have to migrate these apps to Java 6(No code changes to be done at all). My questions: If I dont recompile my apps under Java 6 and just run them with it, will it work fine (I know they 'should'). But if somebody thinks other way round, could you kindly share your thoughts please? More important question is - Will it have any perfomance impact?. As in, App compiled on 1.4 and running on 1.6 vs App compiled and running on 1.6. Is 1.6 gonna do any bytecode optimization for the same old peace of code compared to 1.4? Many Thanks js

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  • Iphone SDK, arc4random CGPointmake?

    - by Harry
    I have tried using integers to store the number like so: playPin = 35 + arc4random() % 118; playY = -50 - arc4random() %100; if (CGRectIntersectsRect(pin.frame, refreshpin.frame)){ pin.center = CGPointMake(playPin, playY); pinend.center = CGPointMake(pin.center.x, pin.center.y+58); } Then using them, when needed, but... its random the first time, then it just keeps repeating itself. then i tried this: if (CGRectIntersectsRect(pin.frame, refreshpin.frame)){ pin.center = CGPointMake(35 + arc4random() % 118, -50 - arc4random() %100); pinend.center = CGPointMake(pin.center.x, pin.center.y+58); } And this also doesn't work, you cant even see the items i want to display! Any ideas? Thanks. Harry.

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  • async handler deleted by the wrong thread in django

    - by user3480706
    I'm run this algorithm in my django application.when i run several time from my GUI django local server will stopped and i got this error Exception RuntimeError: RuntimeError('main thread is not in main loop',) in ignored Tcl_AsyncDelete: async handler deleted by the wrong thread Aborted (core dumped) code print "Learning the sin function" network =MLP.MLP(2,10,1) samples = np.zeros(2000, dtype=[('x', float, 1), ('y', float, 1)]) samples['x'] = np.linspace(-5,5,2000) samples['y'] = np.sin(samples['x']) #samples['y'] = np.linspace(-4,4,2500) for i in range(100000): n = np.random.randint(samples.size) network.propagate_forward(samples['x'][n]) network.propagate_backward(samples['y'][n]) plt.figure(figsize=(10,5)) # Draw real function x = samples['x'] y = samples['y'] #x=np.linspace(-6.0,7.0,50) plt.plot(x,y,color='b',lw=1) samples1 = np.zeros(2000, dtype=[('x1', float, 1), ('y1', float, 1)]) samples1['x1'] = np.linspace(-4,4,2000) samples1['y1'] = np.sin(samples1['x1']) # Draw network approximated function for i in range(samples1.size): samples1['y1'][i] = network.propagate_forward(samples1['x1'][i]) plt.plot(samples1['x1'],samples1['y1'],color='r',lw=3) plt.axis([-2,2,-2,2]) plt.show() plt.close() return HttpResponseRedirect('/charts/charts') how can i fix this error ?need a quick help

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  • Reference DLLs not loading in Visual Studio 2010

    - by Adam Haile
    I'm working on a C# 4.0 project in VS2010 and needed to use some older DLLs containing controls that were created in C# 3.5 on VS2008. When I first add the DLLs to the references, I was able to see the namespace via intellisense and create an instance of one of the controls, but when I go to build, it gives me the following error: The type or namespace name 'BCA' could not be found (are you missing a using directive or an assembly reference?) And I do have a using directive for that namespace already, which is now underlined in red, showing that VS cannot find it. And now, intellisense won't pick up that namespace at all. I even tried added the controls to the toolbox (which worked) but then when I drag them to the GUI, it says that it cannot locate the DLL reference, even though it obviously knows where it is. I even tried changing the target framework to 3.5, but still with the same results. Any thoughts as to why this could be happening?

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  • Redirect output to file

    - by Algorist
    Hi, I have a shell script which is currently running and was running from past 8 hours. It will complete only by tomorrow evening. At the end of the program, it will print 2 million words to standard output. I am running the program on the screen. I forgot to redirect the output to a file. I know I won't be able to copy the data from the window. Is there a way to output the command to a file. I don't want to restart the program. Any thoughts?? Thank you. Bala

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  • List of dict in Python

    - by plalex
    Hi everybody, I've got a list of dict in Python: dico_cfg = {'name': entry_name, 'ip': entry_ip, 'vendor': combo_vendor, 'stream': combo_stream} self.list_cfg.append(dico_cfg) I append to my list a lot of dict in the same way. Now I would like to delete one dict and only one dict in this list? What is the best way to proceed? I've try with the index of the list, but when I remove a dict from the list, the index is modify, so after some random remove my index doesn't correspond anymore to the dict I want to remove in my list. I hope that is clear. Maybe I can add an "id" row in my dict, so I can ask to remove more preciously the dict I want. I'll ask to remove the dict where id is equal to the id's dict I want to remove. How can I do that? I hope I'm enough clear. Sorry but I'm a newbie in Python.

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  • Django URL resolving infrastructure stops working

    - by btol45
    We recently launched a new Django-powered website, and we are experiencing the oddest bug: The site is running under Apache with mod_fastcgi. Everything works fine for a while, and then the URL tag and reverse() functionality stops working. Instead of returning the expected URL, they return "". We haven't noticed anything in Apache's log file; there are no errors being generated by Django. And (the kicker) the problem only occurs in production mode; we can't reproduce it when DEBUG=True. Any thoughts on where we should be looking for the problem?

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  • Pseudorandom crashes in Flash Debugger - My bad, or Abode's?

    - by rinogo
    I'm working on a large-size dual AS3/Flex project (some parts are pure AS3, other parts are Flex), and I'm experiencing a lot of Flash Debugger crashes. These crashes aren't completely random - it seems like I can get them to occur with greater consistency when I perform certain actions in my app. However, at the same time, they aren't consistently repeatable - sometimes a set of actions causes my app to crash, and other times, the same steps execute fine without a crash. I have two questions (carefully worded to remove my personal bias :) ) Are these crashes due to my coding practices, or Adobe's Flash Debugger? When I deploy my app on a web site and access it via Flash Player, should I expect the same crashes to occur, or is Flash Player considerably more resilient than Flash Debugger? Thanks so much, all! :) -Rich

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  • Transparent PNG menu item backgrounds in IE6 with rollovers

    - by evh
    Hi I have been trying to do this for what feels like all my life I have a list menu with block display links, each link has a sliding doors png background image. I have used this javascript (http://www.ideashower.com/our_solutions/png-hover/) to implement the alphaimageloader fix for ie6 using a transparent gif. When I test it for the first time it works but if I click to a different page and then click back it doesn't work anymore - the menu completely disappears, I can get it to work again by duplicating the transparent gif and changing it's name, but again if I go to another page and then come back to it, it stops working and the menu dissappears. Is this a server caching issue or something like that. Any thoughts on this would be much appreciated! Thanks

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  • How can I tell if a user came to a page via a Google Adwords PPC campaign?

    - by Mike Crittenden
    I have a form with a hidden "Came from Adwords" field that will be marked true (via javascript) if the user came from a PPC campaign and will stay false if not. That way, when the user submits the form, we will have each submission stored with info about whether that submission came from adwords or not, all without the user knowing. How can I fetch this info? I know that Google sets a cookie called Conversion whenever you click a PPC link to a page, but the cookie's content is just random alphanumeric characters. Is there something in the Analytics/Adwords API that will let me test for this? Do I have to resort to adding ?ref=adwords or something onto the PPC URLs so that I can test that way?

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  • C# timer won't tick

    - by Andrej
    hi, i have a strange problem... I've been going out of my mind for the past couple of hours... the timer i put in my winform code (from the toolbar) won't tick... I have timers on a couple of forms in my program, they all work fine... I try to do exactly the same it this it won't tick... I select it, drag it on to a form, enable it, set interval and handle the tick event... and nothing happens... i even tried putting random code like messagebox.show in the tick event just to see if anything happens, and nothing!!! as I said, a have a couple of more timer in my program (on other forms, not in the one i'm trying to put this timer) and they all work fine... any suggestions? thanks in advance!

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  • fire and forget compared to http request

    - by cometta
    Hi, i looking for opinion from you all. I have a web application that need to records data into another web application database. I not prefer to use http request GET on 2nd application because of latency issue. I looking for fast way to save records on 2nd application quickly, i came across the idea of "fire and forget" , will JMX suit for this scenario? from my understanding jmx will gurantee message delivery. Let say i need to call at least 1000 random requests per seconds to 2nd application should i use jmx? http request? or xmpp instead?

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