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• sproutcore vs javascriptMVC for web app development

  - by swami

  Hi, I want to use a javascript framework with MVC for a complex web application (which will be one of a set of related apps and pages) for an intranet in a digital archives. I have been looking at SproutCore and JavascriptMVC. I want to choose one framework and stick with it. Does anybody know what the distinguishing features are when comparing these two? I want something that is simple, straightforward that I can customize/hack easily, and that doesn't get in my way too much, but that at the same time gives me a basis for keeping my code nicely organized, and event-driven. I also plan on using jquery substantially. I know sproutcore is backed by Apple, and looks like it is getting more popular by the day, and it has a nice green website :), whereas JavascriptMVC looks less professional, with less of a following and less momentum behind it. I've done the tutorials for both and I was impressed by SproutCore more (in the JMVC tutorial you don't really do anything substantial) - but somewhere in the back of my mind I feel that JMVC might just be better because it doesn't try and do too much - it just gives you MVC functionality based on a couple of jquery plugins, and you can use jquery for everything else, so its flexible. Whereas SproutCore seems to have more of its own API etc... which is also nice in a way... but then you're kind of stuck within that.... hmmm I'm confused :). Any thoughts would be much appreciated.

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• 3x3 Sobel operator and gradient features

  - by pithyless

  Reading a paper, I'm having difficulty understanding the algorithm described: Given a black and white digital image of a handwriting sample, cut out a single character to analyze. Since this can be any size, the algorithm needs to take this into account (if it will be easier, we can assume the size is 2^n x 2^m). Now, the description states given this image we will convert it to a 512-bit feature (a 512-bit hash) as follows: (192 bits) computes the gradient of the image by convolving it with a 3x3 Sobel operator. The direction of the gradient at every edge is quantized to 12 directions. (192 bits) The structural feature generator takes the gradient map and looks in a neighborhood for certain combinations of gradient values. (used to compute 8 distinct features that represent lines and corners in the image) (128 bits) Concavity generator uses an 8-point star operator to find coarse concavities in 4 directions, holes, and lagrge-scale strokes. The image feature maps are normalized with a 4x4 grid. I'm for now struggling with how to take an arbitrary image, split into 16 sections, and using a 3x3 Sobel operator to come up with 12 bits for each section. (But if you have some insight into the other parts, feel free to comment :)

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• How would the conversion of a custom CMS using a text-file-based database to Drupal be tackled?

  - by James Morris

  Just today I've started using Drupal for a site I'm designing/developing. For my own site http://jwm-art.net I wrote a user-unfriendly CMS in PHP. My brief experience with Drupal is making me want to convert from the CMS I wrote. A CMS whose sole method (other than comments) of automatically publishing content is by logging in via SSH and using NANO to create a plain text file in a format like so*: head<<END_HEAD title = Audio keywords= open,source,audio,sequencing,sampling,synthesis descr = Music, noise, and audio, created by James W. Morris. parent = home END_HEAD main<<END_MAIN text<<END_TEXT Digital music, noise, and audio made exclusively with @=xlink=http://www.linux-sound.org@:Linux Audio Software@_=@. END_TEXT image=gfb@--@;Accompanying image for penonpaper-c@right ilink=audio_2008 br= ilink=audio_2007 br= ilink=audio_2006 END_MAIN info=text<<END_TEXT I've been making PC based music since the early nineties - fortunately most of it only exists as tape recordings. END_TEXT ( http://jwm-art.net/dark.php?p=audio - There's just over 400 pages on there. ) *The jounal-entry form which takes some of the work out of it, has mysteriously broken. And it still required SSH access to copy the file to the main dat dir and to check I had actually remembered the format correctly and the code hadn't mis-formatted anything (which it always does). I don't want to drop all the old content (just some), but how much work would be involved in converting it, factoring into account I've been using Drupal for a day, have not written any PHP for a couple of years, and have zero knowledge of SQL? How might a team of developers tackle this? How do-able is it for one guy in his spare time?

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• Mathematical annotations in a PDF file

  - by kvaruni

  I like to annotate papers I read in a digital way. Numerous programs exist to help in this process. For example, on OS X one can use programs such as Skim or even Preview. However, making annotations is dreadful when one wishes to add mathematical annotations, such as formulas or greek letters. A cumbersome "solution" is to select the desired symbol one by one using the Special Characters palette, though this considerably slows down the annotation process. Is there any way to add mathematical annotations to a PDF? The only two limitations that I would impose on a solution is that 1) the mathematical text needs to be selectable, i.e. it must be text and 2) I want to limit the number of programs I need to make the process as painless as possible. Some of the more promising solutions I have tried include generating LaTeX with LaTeXiT, but it seems to be impossible to add a PDF on top of another PDF. Another attempt was to use jsMath to generate the symbols and copy-paste these as annotation using one of the jsMath fonts. This results in unreadable, incorrect characters.

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• Anyone got a nifty credit expiry algorithm?

  - by garethkeenan

  Our website uses a credit system to allow users to purchase inexpensive digital goods (eg. photos). We use credits, rather than asking the user to pay for items individually, because the items are cheap and we are trying to keep our credit-card/PayPal overhead low. Because we aren't a bank, we have to expire credits after a certain amount of time. We expire deposit credits after a year, but other types of credits (bonuses, prizes, refunds) may have a different shelf-life. When a buyer buys an item, we spend the credit that is going to expire first. Our current system keeps track of every deposit by storing the original value and the remainder to be spent. We keep a list of all purchases as well, of course. I am currently moving to a system which is much more like a traditional double-entry accounting system. A deposit will create a ledger item, increasing the user's 'spending' account balance. Every purchase will also create a ledger item, decreasing the user's 'spending' account balance. The new system has running balances, while the old system does not, which greatly improves our ability to find problems and do reconciliations. We do not want to use the old system of keeping a 'remainder' value attached to each deposit record because it is inefficient to replay a user's activities to calculate what the remainder of each deposit is over time (for the user's statement). So, after all of this verbose introduction, my question is "Does anyone else out there have a similar system of expiring credits?" If you could describe how you calculate expired credits it would be a great help. If all expired credits had the exact same shelf life, we would be able to calculate the expired amount using: Total Deposits - Total Spending - Deposits Not Due To Expire = Amount to Expire However, because deposits can have different shelf lives, this formula does not work because more than one deposit can be partially spent at any given time.

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• Secure Webservice (WCF) without storing credentials on consumer application

  - by Pai Gaudêncio

  Howdy folks, I have a customer that sells a lottery analysis application. In this application, he consumes a webservice (my service, I mean, belongs to the company I work for now) to get statistical data about lottery results, bets made, amounts, etc., from all across the globe. The access to this webservice is paid, and each consult costs X credits. Some people have disassembled this lottery application and found the api key/auth key used to access the paid webservice, and started to use it. I would like to prevent this from happening again, but I can't find a way to authenticate on the webservice without storing the auth. keys on the application. Does anyone have any ideas on how to accomplish such task? ps1.Can't ask for the users to input any kind of credentials. Has to be transparent for them (they shouldn't know what is happening). ps2. Can't use digital certificates for the same reason above, not to mention it's easy to retrieve them and we would fall into the original problem. Thanks in advance.

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• Help securing files access with htaccess and php?

  - by bschaeffer

  I'm working on a site that allows users to purchase digital content and have implemented a method that attempts to serve secure downloads. I'm using CodeIgniter to force downloads like this: $file = file_get_contents($path); force_download("my_file_name.zip", $file); Of course, I make sure the user has access to the file using a database before serving the download, but I was wondering if there was a way to make these files more secure. I'm using a some 8-10 letter keys to create the file paths so urls to the files aren't exactly easy to figure out... something like http://mysite.com/as67Hgr/asdo0980/uth89.zip in lieu of http://mysite.com/downloads/my_file.zip. Also, I'm using .htaccess to deny directory browsing like so: Options All -Indexes. Other than that... I have no idea what steps to take. I've seen articles suggesting username and password methods using .htaccess, but I don't understand how to bypass the password prompt that would occur using that method. I was hoping there might be a method where I could send a username and password combination using headers and cUrl (or something similar), but I wouldn't know where to start. Any help would be hugely appreciated. Thanks in advance!

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• Are we DELPHI, VCL or Pascal programmers?

  - by José Eduardo

  i´ve been a delphi database programmer since D2. Now i´m facing some digital imaging and 3D challenges that make me to start study OpenGL, DirectX, Color Spaces and so on. I´m really trying but nobody seems to use Delphi for this kind of stuff, just the good-old-paycheck Database programming. ok, i know that we have some very smart guys behind some clever components, some of this open-source. Is there any PhotoShop, Blender, Maya, Office, Sonar, StarCraft, Call of Dutty written in Delphi? Do i have to learn C++ to have access to zillions of books about that kind of stuff? What is the fuzz/hype behind this: int *varName = &anhoterThing? Why pointers seems to be the holy graal to this apps? I´ve downloaded MSVC++ Express and start to learn some WPF and QT integration, and i think: "Man, Delphi does this kind of stuff, with less code, less headaches, since the wheels were invented" This lead my mind to the following... Do you ever tried to write a simple notepad program using just notepad and dcc32 in Pascal/Delphi? if so embarcadero could make our beloved pascal compiler free, and sell just the ide, the vcl, the customer support ... and back to the question: Are we DELPHI, VCL or Pascal programmers?

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• Simple imeplementation of admin/staff panel?

  - by Michael Mao

  Hi all: A new project requires a simple panel(page) for admin and staff members that : Preferably will not use SSL or any digital ceritification stuff, a simple login from via http will just be fine. has basic authentication which allows only admin to login as admin, and any staff member as of the group "staff". Ideally, the "credentials(username-hashedpassword pair)" will be stored in MySQL. is simple to configure if there is a package, or the strategy is simple to code. somewhere (PHP session?) somehow (include a script at the beginning of each page to check user group before doing anything?), it will detect any invalid user attempt to access protected page and redirect him/her to the login form. while still keeps high quality in security, something I worry about the most. Frankly I am having little knowledge about Internet security, and how modern CMS such as WordPress/Joomla do with their implementation in this. I only have one thing in my mind that I need to use a salt to hash the password (SHA1?) to make sure any hacker gets the username and password pair across the net cannot use that to log into the system. And that is what the client wants to make sure. But I really not sure where to start, any ideas? Thanks a lot in advance.

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• Templates, and C++ operator for logic: B contained by set A

  - by James Morris

  In C++, I'm looking to implement an operator for selecting items in a list (of type B) based upon B being contained entirely within A. In the book "the logical design of digital computers" by Montgomery Phister jr (published 1958), p54, it says: F11 = A + ~B has two interesting and useful associations, neither of them having much to do with computer design. The first is the logical notation of implication... The second is notation of inclusion... This may be expressed by a familiar looking relation, B < A; or by the statement "B is included in A"; or by the boolean equation F11= A + ~B = 1. My initial implementation was in C. Callbacks were given to the list to use for such operations. An example being a list of ints, and a struct containting two ints, min and max, for selection purposes. There, selection would be based upon B = A-min && B <= A-max. Using C++ and templates, how would you approach this after having implemented a generic list in C using void pointers and callbacks? Is using < as an over-ridden operator for such purposes... <ugh> evil? </ugh> (or by using a class B for the selection criteria, implementing the comparison by overloading ?)

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• Misalignement in the output Bitmap created from a byte array

  - by Daniel

  I am trying to understand why I have troubles creating a Bitmap from a byte array. I post this after a careful scrutiny of the existing posts about Bitmap creation from byte arrays, like the followings: Creating a bitmap from a byte[], Working with Image and Bitmap in c#?, C#: Bitmap Creation using bytes array My code is aimed to execute a filter on a digital image 8bppIndexed writing the pixel value on a byte [] buffer to be converted again (after some processing to manage gray levels) in a 8BppIndexed Bitmap My input image is a trivial image created by means of specific perl code: https://www.box.com/shared/zqt46c4pcvmxhc92i7ct Of course, after executing the filter the output image has lost the first and last rows and the first and last columns, due to the way the filter manage borders, so from the original 256 x 256 image i get a 254 x 254 image. Just to stay focused on the issue I have commented the code responsible for executing the filter so that the operation really performed is an obvious: ComputedPixel = InputImage.GetPixel(myColumn, myRow).R; I know, i should use lock and unlock but I prefer one headache one by one. Anyway this code should be a sort of identity transform, and at last i use: private unsafe void FillOutputImage() { OutputImage = new Bitmap (OutputImageCols, OutputImageRows , PixelFormat .Format8bppIndexed); ColorPalette ncp = OutputImage.Palette; for (int i = 0; i < 256; i++) ncp.Entries[i] = Color .FromArgb(255, i, i, i); OutputImage.Palette = ncp; Rectangle area = new Rectangle(0, 0, OutputImageCols, OutputImageRows); var data = OutputImage.LockBits(area, ImageLockMode.WriteOnly, OutputImage.PixelFormat); Marshal .Copy (byteBuffer, 0, data.Scan0, byteBuffer.Length); OutputImage.UnlockBits(data); } The output image I get is the following: https://www.box.com/shared/p6tubyi6dsf7cyregg9e It is quite clear that I am losing a pixel per row, but i cannot understand why: I have carefully controlled all the parameters: OutputImageCols, OutputImageRows and the byte [] byteBuffer length and content even writing known values as way to test. The code is nearly identical to other code posted in stackOverflow and elsewhere. Someone maybe could help to identify where the problem is? Thanks a lot

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• SQL, MVC, Entity Framework

  - by Anthony

  Hi Im using the above technologies and have ran into what I presume is a design issue I have made. I have an Artwork table in my DB and have been able to add art (I now think of these as Digital Products) to a shopping cart + CartLine table fine. The system I have that adds art to galleries and user accounts etc works fine. Now the client wants to sell T-shirts, Mugs and Pens etc, 'HardwareProducts' so I have created a 'HardwareProducts' table. Now I have two different product types in two tables. I use GUID's as the PK's in both the HardwareProducts table and Artwork table. When a customer adds an item to their cart I store the GUID in the ProductID column in the CartItems table. The issue is the database will not know which table to reference when I bring the LineItem object up through my ORM to the front end. In OOP I can see how you would have a base class of Product, and then a DigitalProduct class and HardwareProduct class drived from it, but how do you model this in SQL Server and the Entity Framework please, or is there another way?

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• .net real time stream processing - needed huge and fast RAM buffer

  - by mack369

  The application I'm developing communicates with an digital audio device, which is capable of sending 24 different voice streams at the same time. The device is connected via USB, using FTDI device (serial port emulator) and D2XX Drivers (basic COM driver is to slow to handle transfer of 4.5Mbit). Basically the application consist of 3 threads: Main thread - GUI, control, ect. Bus reader - in this thread data is continuously read from the device and saved to a file buffer (there is no logic in this thread) Data interpreter - this thread reads the data from file buffer, converts to samples, does simple sample processing and saves the samples to separate wav files. The reason why I used file buffer is that I wanted to be sure that I won't loose any samples. The application doesn't use recording all the time, so I've chosen this solution because it was safe. The application works fine, except that buffered wave file generator is pretty slow. For 24 parallel records of 1 minute, it takes about 4 minutes to complete the recording. I'm pretty sure that eliminating the use of hard drive in this process will increase the speed much. The second problem is that the file buffer is really heavy for long records and I can't clean this up until the end of data processing (it would slow down the process even more). For RAM buffer I need at lest 1GB to make it work properly. What is the best way to allocate such a big amount of memory in .NET? I'm going to use this memory in 2 threads so a fast synchronization mechanism needed. I'm thinking about a cycle buffer: one big array, the Bus Reader saves the data, the Data Interpreter reads it. What do you think about it? [edit] Now for buffering I'm using classes BinaryReader and BinaryWriter based on a file.

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• key-words highlight in <textarea> (again)

  - by Halst

  Wait, I know! I know that this "syntax highlight in textarea"-question was raised like a million times on stackoverflow! But, please, listen. offtopic: I'm not a web-developer, and technically I'm not a programmer at all. I study mechatronics and deal mostly with control-engineering and digital-hardware. And I'm so pissed off that whenever I want to share some application (that would be helpful in my field) and embed it into the web, I need to know such a crazy amount of technologies, like html, css, javascript, flash, etc.. that takes time, which I could have been spending for the benefit of my own field. Right now I'm playing with hardware-description-languages and I'm writing some Python-libraries to convert one HDL into another. And I wanted to embed such feature on the web: http://xhdl2vhdl.appspot.com/ I wanted to implement some basic syntax highlighting (only keywords highlighting will be enough) so that the code could be readable. But the whole idea highlighting something in textarea is not trivial at all. The other difficulty is that the languages I work with are rare, and there are no out-of-box solutions for them. I tried to dig into these solutions, but they are very complicated for me: http://www.nicolarizzo.com/gamesroom/experimental/CodeEditor.html http://marijn.haverbeke.nl/codemirror/jstest.html and there is no clear descriptions how to use them (for my level of knowledge of web-development). So, is there a simple solution, just to highlight a bunch of key-words in textarea or perform something equivalent? Thank you.

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• Free utility which runs in Linux to create a UML class diagram from Java source files

  - by DeletedAccount

  I prefer to jot down UML-diagrams on paper and then implement them using Java. It would be nice to have a utility which could create UML-diagrams for me which I may share on-line and include in the digital documentation. In other words: I want to create UML diagrams from Java source code. The utility must be able to: Run in Linux. Handle Generics, i.e show List<Foo correctly in parameters and return type. Show class inheritance and interface implementations. It's nice if the utility is able to: Run in Windows and Mac OS X. Display enums in some nice manner. Generate output in a diagram format which I may modify using some other utility. Run from the command line. Restrict the UML generation to a set of packages which I may specify. Handle classes/interfaces which are not part of my source code. It could include the first class/interface which is external in the UML diagram. Perhaps in another color to indicate it being a library/framework created by someone else. Focuses on this task and doesn't try to solve the whole issue of documentation.

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• C headers: compiler specific vs library specific?

  - by leonbloy

  Is there some clear-cut distinction between standard C *.h header files that are provided by the C compiler, as oppossed to those which are provided by a standard C library? Is there some list, or some standard locations? Motivation: int this answer I got a while ago, regarding a missing unistd.h in the latest TinyC compiler, the author argued that unistd.h (contrarily to sys/unistd.h) should not be provided by the compiler but by your C library. I could not make much sense of that response (for one thing shouldn't that also apply to, say, stdio.h?) but I'm still wondering about it. Is that correct? Where is some authoritative reference for this? Looking in other compilers, I see that other "self contained" POSIX C compilers that are hosted in Windows (like the GCC toolchain that comes with MinGW, in several incarnations; or Digital Mars compiler), include all header files. And in a standard Linux distribution (say, Centos 5.10) I see that the gcc package provides a few header files (eg, stdbool.h, syslimits.h) in /usr/lib/gcc/i386-redhat-linux/4.1.1/include/, and the glibc-headers package provides the majority of the headers in /usr/include/ (including stdio.h, /usr/include/unistd.h and /usr/include/sys/unistd.h). So, in neither case I see support for the above claim.

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• Manipulating a NSTextField via AppleScript

  - by Garry

  A little side project I'm working on is a digital life assistant, much like project JARVIS. What I'm trying to do is speak to my mac, have my words translated to text and then have the text interpreted by my program. Currently, my app is very simple, consisting of a single window containing a single wrapped NSTextView. Using MacSpeech Dictate, When I say the custom command "Jeeves", MacSpeech ensures that my app is frontmost, highlights any text in the TextField and clears it, then presses the Return key to trigger the textDidEndEditing method of NSTextField. This is done via Applescript. MacSpeech then switches to dictation mode and the next sentence I say will appear in the NSTextField. What I can't figure out is how to signify that I have finished saying a command to my program. I could simply say another keyword like "execute" or something similar that would send an AppleScript return keystroke to my app (thereby triggering the textDidEndEditing event) but this is cumbersome. Is there a notification that happens when text is pasted into a NSTextField? Would a timer work that would fire after maybe three seconds once my program becomes frontmost (three seconds should be sufficient for me to say a command)? Thanks,

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• Trouble parsing self closing XML tags using SAX parser

  - by sandesh

  Hi, I am having trouble parsing self closing XML tags using SAX. I am trying to extract the link tag from the Google Base API.I am having reasonable success in parsing regular tags. Here is a snippet of the xml <entry> <id>http://www.google.com/base/feeds/snippets/15802191394735287303</id> <published>2010-04-05T11:00:00.000Z</published> <updated>2010-04-24T19:00:07.000Z</updated> <category scheme='http://base.google.com/categories/itemtypes' term='Products'/> <title type='text'>En-el1 Li-ion Battery+charger For Nikon Digital Camera</title> <link rel='alternate' type='text/html' href='http://rover.ebay.com/rover/1/711-67261-24966-0/2?ipn=psmain&amp;icep_vectorid=263602&amp;kwid=1&amp;mtid=691&amp;crlp=1_263602&amp;icep_item_id=170468125748&amp;itemid=170468125748'/> . . and so on I can parse the updates and published tags, but not the link and category tag. Here is my startElement and endElement overrides public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { if (qName.equals("title") && xmlTags.peek().equals("entry")) { insideEntryTitle = true; } xmlTags.push(qName); } public void endElement(String uri, String localName, String qName) throws SAXException { // If a "title" element is closed, we start a new line, to prepare // printing the new title. xmlTags.pop(); if (insideEntryTitle) { insideEntryTitle = false; System.out.println(); } } declaration for xmltags.. private Stack<String> xmlTags = new Stack<String>(); Any help guys? this is my first post here.. I hope I have followed posting rules! thanks a ton guys..

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• Passing time from server to client

  - by gskoli

  Dear all, i am creating a digital clock using images & javascript but i want to pass a server time that time ... How to do that ... I am getting time from server and passing it to Date Following i have given snippet . var time_str = document.clock_form.time_str.value ; //alert (time_str); function dotime(){ theTime=setTimeout('dotime();',1000); //d = new Date(Date.parse(time_str)); d= new Date(time_str); hr= d.getHours()+100; mn= d.getMinutes()+100; se= d.getSeconds()+100; var time_str = document.clock_form.time_str.value ; //alert (time_str); alert(' TIME ---> '+hr+' :: '+mn+' :: '+ se); if(hr==100){ hr=112;am_pm='am'; } else if(hr<112){ am_pm='am'; } else if(hr==112){ am_pm='pm'; } else if(hr>112){ am_pm='pm';hr=(hr-12); } tot=''+hr+mn+se; document.hr1.src = '/flash_files/digits/dg'+tot.substring(1,2)+'.gif'; document.hr2.src = '/flash_files/digits/dg'+tot.substring(2,3)+'.gif'; document.mn1.src = '/flash_files/digits/dg'+tot.substring(4,5)+'.gif'; document.mn2.src = '/flash_files/digits/dg'+tot.substring(5,6)+'.gif'; document.se1.src = '/flash_files/digits/dg'+tot.substring(7,8)+'.gif'; document.se2.src = '/flash_files/digits/dg'+tot.substring(8,9)+'.gif'; document.ampm.src= '/flash_files/digits/dg'+am_pm+'.gif'; } dotime(); But it is not working Help me out Thanks in advance.

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• Want to develop for Android. Have a few basic, non-FAQ questions

  - by Troy M

  Hi everyone, Recently myself and a small group of friends became interested in developing a game for a mobile platform. Originally we considered the iPhone but none of us use macs, so we decided Android would be a more realistic platform to use. Before we get started, I was hoping that I might find some answers to a couple questions so we don't waste our time if this project isn't feasible. Any help is appreciated! I can't seem to find out how many programming languages Android supports. Java is obvious, but what about C+? It seems that Android supports C and C++ through Eclipse, but is that it? (I'm not the programmer for the project which is why I'm asking this. He's comfortable in C+). Our game involves the use of two digital analog sticks (it's not a twin-stick shooter but it's a similar concept). It would seem that most Droid devices unfortunately don't use multi-touch though... Are there many devices out there right now which support this functionality and I'm just not seeing them, or should we possibly consider the development of a different game that would only use a single input? Assuming there's no snags following those first two questions, what would you consider the best screen resolution to develop in? It seems like there are a variety of resolutions out there right now and we can't decide which is the best to use. Again, any answers are appreciated!

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• How can I create photo effects in Android?

  - by PaulH

  I'd like to make an Android app that lets a user apply cool effects to photos taken with the camera. There are already a few out there, I know, but I'd like to try my own hand at one. I'm trying to figure out the best way to implement these effects. Here are some examples from the excellent Vignette app (which I own): http://www.flickr.com/groups/vignetteforandroid/pool/ I have been googling and stack-overflowing, but so far I've mostly found some references to published papers or books. I am ordering this one from Amazon presently - Digital Image Processing: An Algorithmic Introduction using Java After some reading, I think I have a basic understanding of manipulating the RGB values for all the pixels in the image. My main question is how do I come up with a transformation that produces cool effects? By cool effects I mean some like those in the Vignette app or IPhone apps: ToyCamera Polarize I already have quite a bit of experience with Java, and I've made my first app for android already. Any ideas? Thanks in advance.

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• CFfile -- value is not set to the queried data

  - by user494901

  I have this add user form, it also doubles as a edit user form by querying the data and setting the value="#query.xvalue#". If the user exists (eg, you're editing a user, it loads in the users data from the database. When doing this on the <cffile field it does not load in the data, then when the insert goes to insert data it overrights the database values with a blank string (If a user does not input a new file). How do I avoid this? Code: Form: <br/>Digital Copy<br/> <!--- If null, set a default if not, set the default to database default ---> <cfif len(Trim(certificationsList.cprAdultImage)) EQ 0> <cfinput type="file" required="no" name="cprAdultImage" value="" > <cfelse> File Exists: <cfoutput><a href="#certificationsList.cprAdultImage#">View File</a></cfoutput> <cfinput type="file" required="no" name="cprAdultImage" value="#certificationsList.cprAdultImage#"> </cfif> Form Processor: <!--- Has a file been specificed? ---> <cfif not len(Trim(form.cprAdultImage)) EQ 0> <cffile action="upload" filefield="cprAdultImage" destination="#destination#" nameConflict="makeUnique"> <cfinvokeargument name="cprAdultImage" value="#pathOfFile##cffile.serverFile#"> <cfelse> <cfinvokeargument name="cprAdultImage" value=""> </cfif> CFC ARGS: <cfargument name="cprAdultExp" required="NO"> <cfargument name="cprAdultCompany" type="string" required="no"> <cfargument name="cprAdultImage" type="string" required="no"> <cfargument name="cprAdultOnFile" type="boolean" required="no"> Query: UPDATE mod_StudentCertifications SET cprAdultExp='#DateFormat(ARGUMENTS.cprAdultExp, "mm/dd/yyyy")#', cprAdultCompany='#Trim(ARGUMENTS.cprAdultCompany)#', cprAdultImage='#Trim(ARGUMENTS.cprAdultImage)#', cprAdultOnFile='#Trim(ARGUMENTS.cprAdultOnFile)#' INSERT INTO mod_StudentCertifications( cprAdultExp, cprAdultcompany, cprAdultImage, cprAdultOnFile

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• PHP : How to get specific data from array

  - by Giffary

  Hello! I try to use amazon API using PHP. If I use print_r($parsed_xml->Items->Item->ItemAttributes) it show me some result like SimpleXMLElement Object ( [Binding] = Electronics [Brand] = Canon [DisplaySize] = 2.5 [EAN] = 0013803113662 [Feature] = Array ( [0] = High-powered 20x wide-angle optical zoom with Optical Image Stabilizer [1] = Capture 720p HD movies with stereo sound; HDMI output connector for easy playback on your HDTV [2] = 2.5-inch Vari-Angle System LCD; improved Smart AUTO intelligently selects from 22 predefined shooting situations [3] = DIGIC 4 Image Processor; 12.1-megapixel resolution for poster-size, photo-quality prints [4] = Powered by AA batteries (included); capture images to SD/SDHC memory cards (not included) ) [FloppyDiskDriveDescription] = None [FormFactor] = Rotating [HasRedEyeReduction] = 1 [IsAutographed] = 0 [IsMemorabilia] = 0 [ItemDimensions] = SimpleXMLElement Object ( [Height] = 340 [Length] = 490 [Weight] = 124 [Width] = 350 ) [Label] = Canon [LensType] = Zoom lens [ListPrice] = SimpleXMLElement Object ( [Amount] = 60103 [CurrencyCode] = USD [FormattedPrice] = $601.03 ) [Manufacturer] = Canon [MaximumFocalLength] = 100 [MaximumResolution] = 12.1 [MinimumFocalLength] = 5 [Model] = SX20IS [MPN] = SX20IS [OpticalSensorResolution] = 12.1 [OpticalZoom] = 20 [PackageDimensions] = SimpleXMLElement Object ( [Height] = 460 [Length] = 900 [Weight] = 242 [Width] = 630 ) [PackageQuantity] = 1 [ProductGroup] = Photography [ProductTypeName] = CAMERA_DIGITAL [ProductTypeSubcategory] = point-and-shoot [Publisher] = Canon [Studio] = Canon [Title] = Canon PowerShot SX20IS 12.1MP Digital Camera with 20x Wide Angle Optical Image Stabilized Zoom and 2.5-inch Articulating LCD [UPC] = 013803113662 ) my goal is to get only Feature infomation and I try to use $feature = $parsed_xml->Items->Item->ItemAttributes->Feature it does'not work for me because it just show me the first feature only. How do i get all feature information? please help

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• new Date() In javascript :: need Help

  - by gskoli

  Dear all, i am creating a digital clock using images & javascript but i want to pass a server time that time ... How to do that ... I am getting time from server and passing it to Date Following i have given snippet . var time_str = document.clock_form.time_str.value ; //alert (time_str); function dotime(){ theTime=setTimeout('dotime();',1000); //d = new Date(Date.parse(time_str)); d= new Date(time_str); hr= d.getHours()+100; mn= d.getMinutes()+100; se= d.getSeconds()+100; var time_str = document.clock_form.time_str.value ; //alert (time_str); alert(' TIME ---> '+hr+' :: '+mn+' :: '+ se); if(hr==100){ hr=112;am_pm='am'; } else if(hr<112){ am_pm='am'; } else if(hr==112){ am_pm='pm'; } else if(hr>112){ am_pm='pm';hr=(hr-12); } tot=''+hr+mn+se; document.hr1.src = '/flash_files/digits/dg'+tot.substring(1,2)+'.gif'; document.hr2.src = '/flash_files/digits/dg'+tot.substring(2,3)+'.gif'; document.mn1.src = '/flash_files/digits/dg'+tot.substring(4,5)+'.gif'; document.mn2.src = '/flash_files/digits/dg'+tot.substring(5,6)+'.gif'; document.se1.src = '/flash_files/digits/dg'+tot.substring(7,8)+'.gif'; document.se2.src = '/flash_files/digits/dg'+tot.substring(8,9)+'.gif'; document.ampm.src= '/flash_files/digits/dg'+am_pm+'.gif'; } dotime(); But it is not working Help me out Thanks in advance.

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• Query returning related assets

  - by GMo

  I have 2 tables, one is an assets table which holds digital assets (e.g. article, images etc), the 2nd table is an asset_links table which maps 1-1 relationships between assets contained within the assets table. Here are the table definitions: Asset +---------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------+--------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | source | varchar(255) | YES | | NULL | | | title | varchar(255) | YES | | NULL | | | date_created | datetime | YES | | NULL | | | date_embargo | datetime | YES | | NULL | | | date_expires | datetime | YES | | NULL | | | date_updated | datetime | YES | | NULL | | | keywords | varchar(255) | YES | | NULL | | | status | int(11) | YES | | NULL | | | priority | int(11) | YES | | NULL | | | fk_site | int(11) | YES | MUL | NULL | | | resource_type | varchar(255) | YES | | NULL | | | resource_id | int(11) | YES | | NULL | | | fk_user | int(11) | YES | MUL | NULL | | +---------------+--------------+------+-----+---------+----------------+ Asset_links +-----------+---------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-----------+---------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | asset_id1 | int(11) | YES | | NULL | | | asset_id2 | int(11) | YES | | NULL | | +-----------+---------+------+-----+---------+----------------+ In the asset_links table there are the following rows: 1 - 3, 1 - 4, 2 - 10, 2 - 56 I am looking to write one query which will return all assets which satisfy any asset search criteria and within the same query return all of the linked asset data for linked assets for that asset. e.g. The query returning assets 1 and 2 would return : Asset 1 attributes - Asset 3 attributes - Asset 4 attributes Asset 2 attributes - Asset 10 attributes - Asset 56 attributes What is the best way to write the query?

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