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  • ADD COLUMN to sqlite db IF NOT EXISTS - flex/air sqlite?

    - by Adam
    I've got a flex/air app I've been working on, it uses a local sqlite database that is created on the initial application start. I've added some features to the application and in the process I had to add a new field to one of the database tables. My questions is how to I go about getting the application to create one new field that is located in a table that already exists? this is a the line that creates the table stmt.text = "CREATE TABLE IF NOT EXISTS tbl_status ("+"status_id INTEGER PRIMARY KEY AUTOINCREMENT,"+" status_status TEXT)"; And now I'd like to add a status_default field. thanks! Thanks - MPelletier I've add the code you provided and it does add the field, but now the next time I restart my app I get an error - 'status_default' already exists'. So how can I go about adding some sort of a IF NOT EXISTS statement to the line you provided?

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  • Is learning the Caché database hard coming from relational databases and object oriented programming

    - by Edelcom
    I am currently running the local version of Caché on my system in order to determine if I can (and will) take on a new possible project. The current project uses Delphi 7 as a front end calling a Caché dll where the business logic is stored in the database. I have a background of Sqlserver and Firebird (and before Access and Paradox) as databases. I use Delphi 7 for 95% of my Windows development, so I know about object programming. I would like to recieve opinions from persons having used Caché and either SqlServer, Firebird or Oracle and having developed in Delphi (or C++ or C# - an object oriented language). I have read the pro's and con's from other questions, but I am not asking for this, I need input from Caché developers. Thanks in advance.

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  • User management API

    - by Akshey
    Hi, I am developing an application suite where users will need to connect to a server and depending on their account type they will be given some services. The server will run Linux. Can you please suggest me some user management API which I can use to develop the server program? By user management I mean user authentication and other related functionalities. I prefer to work in C++ or python, but any other language should not be a problem. Please note that this application suite is not web based. Due to security issues, I do not want to give each user a separate account on the linux server. Thanks, Akshey

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  • How to convert an object into a double?

    - by george t.
    I am working on VS C# on the following code, which converts an user input math expression and computes it. MSScriptControl.ScriptControl sc = new MSScriptControl.ScriptControl(); sc.Language = "VBScript"; sc.ExecuteStatement( "function pi\n" + "pi = 3.14159265\n" + "end function"); sc.ExecuteStatement( "function e\n" + "e = exp(1)\n" + "end function"); expression = textBox1.Text.ToString(); expression = expression.Replace("x", i.ToString()); object y = sc.Eval(expression); string k = y.ToString(); double result = double.Parse(k); While this outputs onto the console with the correct result, I want to use the values to make a graph of the function user inputs and it's not doing it correctly. Thank you for your help.

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  • Updating onclick's string value with Greasemonkey

    - by Devin McCabe
    I'm trying to write a Greasemonkey script to update the onclick value of a bunch of links on a page. The HTML looks like this: <a onclick="OpenGenericPopup('url-99.asp','popup',500,500,false)" href="javascript:void(0)">text</a> I need to update the url-99.asp part of the Javascript into something like urlB-99.asp. In my script, I'm collecting all the links with an XPath expression and iterating through them: var allEl = document.evaluate( 'td[@class="my-class"]/a', document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null); for (var i = 0; i < allEl.snapshotLength; i++) { var el = allEl.snapshotItem(i); //something here; } If I try to alert(el.onclick), I get an error in the console: Component is not available I've read up on unsafeWindow and other Greasemonkey features, and I understand how to set an event handler for that link with a new onClick event, but how do I read the current onclick value into a string so I can manipulate it and update the element?

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  • What to do with CSV after export on the iPhone?

    - by alku83
    One of the requested features for my apps is to have an export feature. Most of the time the data is table-like in nature. As an example, users might enter every day what types of food they ate that day, and how many portions of each food type. As the data is table-like, I figure the most useful for export would be into CSV format. Then it can be read in spreadsheet software. I'm confident I can get the data into a CSV like format without too much trouble, and found this post would should help me: http://stackoverflow.com/questions/1512883/how-to-convert-data-to-csv-or-html-format What I'm wondering about is what I can do with the file once it has been created? Can I attach it to an email? How else can I make it available to the user so that it has some use? Alternatively, am I going about this the wrong way and would there be a better way to offer an export function?

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  • A good machine learning technique to weed out good URLs from bad

    - by git-noob
    Hi, I have an application that needs to discriminate between good HTTP GET requests and bad. For example: http://somesite.com?passes=dodgy+parameter # BAD http://anothersite.com?passes=a+good+parameter # GOOD My system can make a binary decision about whether or not a URL is good or bad - but ideally I would like it to predict whether or not a previously unseen URL is good or bad. http://some-new-site.com?passes=a+really+dodgy+parameter # BAD I feel the need for a support vector machine (SVM) ... but I need to learn machine learning. Some questions: 1) Is an SVM appropriate for this task? 2) Can I train it with the raw URLs? - without explicitly specifying 'features' 3) How many URLs will I need for it to be good at predictions? 4) What kind of SVM kernel should I use? 5) After I train it, how do I keep it up to date? 6) How do I test unseen URLs again the SVM to decide whether it's good or bad? I

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  • NLP - Word Alignment

    - by mgj
    Hi..:) I am looking for word alignment tools and algorithms, I am dealing with bilingual English - Hindi text, Currently I am working on DTW(Dynamic Time Warping) algorithm, CLA(Competitive Linking Algorithm) , NATool, Giza++. Could you please suggest me any other alogrithm/tool which is language independent which could achieve Statistical word alignment for parallel English Hindi Corpora and its Evaluation, some tools languages are best for certain languages.. Could one please tell me how true is that and if so could you please give me an example what would suite better for Asian languages like Hindi and what shouldn't I use for such languages. I have heard a bit about uplug word aligner.. could one tell me if I could use it as a tool for my purpose. Thank you.. :)

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  • Servlets vs MVC frameworks

    - by Jegan
    I very often come across this question of why we have got lots of web frameworks addressing the same or similar drawbacks. When looking deeply, I also have given thought on why JSP / Servlets is not being used after the other web frameworks (like Struts, Spring MVC etc) have shown their existence? Is it because, the latest web frameworks does most of the things on its own? provides extensive features that is not available with Servlet / JSP? or the Servlet / JSP is impotent to deliver what latest framework does? Any help in the form of responses or resources is greatly appreciated.

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  • What is the "standard" JQuery treeview that most people use? It seems the most popular plugin isn't

    - by Pete Alvin
    I've chosen JQuery as my JavaScript library but now I'm a bit frustrated by the JQuery plugin site... the site kinda sucks... the plugin area isn't designed very well and I can only find a few treeviews. The one with the most votes (link text) isn't supported anymore. Can someone please point me to an industrial strength treeview? Desired Features: 1. stable 2. async / ajax would be nice 3. drag and drop nodes would be nice I've been delighted so far with JQueryUI--nice design. But, how come it doesn't come with a standard tree view? Pete

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  • Adaboost algorithm and its usage in face detection

    - by Hani
    I am trying to understand Adaboost algorithm but i have some troubles. After reading about Adaboost i realized that it is a classification algorithm(somehow like neural network). But i could not know how the weak classifiers are chosen (i think they are haar-like features for face detection) and how finally the H result which is the final strong classifier can be used. I mean if i found the alpha values and compute the H ,how am i going to benefit from it as a value (one or zero) for new images. Please is there an example describes it in a perfect way? i found the plus and minus example that is found in most adaboost tutorials but i did not know how exactly hi is chosen and how to adopt the same concept on face detection. I read many papers and i had many ideas but until now my ideas are not well arranged. Thanks....

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  • Good projects to learn OCaml and F#

    - by Yin Zhu
    After learning the basic syntax, reading some non-trivial code is a fast way to learn a language. We can also learn how to design a library/software during reading others' code. I have following lists. A Chess program in OCaml by Tomek Czajka. Hal Daumé has written several machine learning libraries in Ocaml. Including decision trees, logistic regression and SVM. All of them are near-production-quality code. A Chess Game Analysis program in F# in Microsoft Research. The above three are my favorites. Will you suggest some other sources? General purpose open source software are good, specialized open source like the three I list here are even more welcome.

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  • How to add a Fragment inside a ViewPager using Nested Fragment (Android 4.2)

    - by sabadow
    I have a ViewPager with three Fragments, each one shows a List (or Grid). In the new Android API level 17 (Jelly Bean 4.2), one of the features is Nested Fragments. The new functionality description says: if you use ViewPager to create fragments that swipe left and right and consume a majority of the screen space, you can now insert fragments into each fragment page. So, if I understand right, now I can create a ViewPager with Fragments (with a button inside for example) inside, and when user press the button show another Fragment without loose the ViewPager using this new feature. I expend my morning trying to implement this on several ways but I can´t made it... Can somebody show a simple example of how to do this? PS: I'm only interested in doing at this way, with getChildFragmentManager to learn how works.

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  • Is there a fully-functional dropdown replacement for HTML SELECT that works in IE?

    - by Ken Paul
    We determined in a previous question that many features of HTML SELECTs are not supported in IE. Is there an alternative widget that you would recommend from your experience that meets the following requirements? Respects the contentEditable property (does not allow selection changes if true) Respects the disabled property of individual OPTIONs (shows them "grayed out" or with strike-through font, and makes them un-selectable) Supports Option Groups (OPTGROUP elements) Supports style options such as border and margin in the SELECT and all sub-elements Supports dynamic add and delete of OPTION and OPTGROUP elements Supports the above in IE version 6 and above EDIT: As noted by @Joel Coehoorn, items 3 and 5 above are currently supported in IE. They are included here to make sure they are not overlooked in a replacement widget.

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  • Getting Started with UDK

    - by Sean Edwards
    I've been trying for a couple of days now to learn UDK, but I seem to be stuck at making that leap to understanding how everything works together. I understand the syntax, that's all well and good, and I pretty much get how classes and .ini files interact. As for the API, I have the entire reference as pretty decent Doxygen-style HTML output. What I'm looking for is a sort of intermediate tutorial on game creation from scratch (as opposed to modding UT3 itself), more advanced than just learning language syntax, but not yet to the level of going through the API step by step. I'm looking for some guide to the structure of the internals - how GameInfo and PlayerController interact, where Pawn comes in, etc. - a way to visualize the big picture. Does anyone have a particular favorite intermediate-level tutorials (or set of tutorials) that they used when first learning UDK?

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  • Design for a machine learning artificial intelligence framework (community wiki)

    - by Lirik
    This is a community wiki which aims to provide a good design for a machine learning/artificial intelligence framework (ML/AI framework). Please contribute to the design of a language-agnostic framework which would allow multiple ML/AI algorithms to be plugged into a single framework which: runs the algorithms with a user-specified data set. facilitates learning, qualification, and classification. allows users to easily plug in new algorithms. can aggregate or create an ensemble of the existing algorithms. can save/load the progress of the algorithm (i.e. save the network and weights of a neural network, save the tree of a decision tree, etc.). What is a good design for this sort of ML/AI framework?

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  • Traveling Salesman in polynomial time

    - by Andres
    Problem Description: Write a program in any language with the shortest number of characters that solves the following problem: Given a collection of cities and the cost of travel between each pair of them, find the cheapest way of visiting all of the cities and returning to your starting point. All solutions must take at most polynomial time. Input will be in the form of a text file named simply "i". The text file will contain data in the following format: city1# city2# cost$ cityA# cityB# cost$ ... Each element in the file is separated with a space, and there is a newline at the end of every line. Code count does not include whitespace. Solutions that take longer than polynomial time to find will not be accepted

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  • How to set the mechanize page encoding?

    - by Juan Medín
    Hi, I'm trying to get a page with an ISO-8859-1 encoding clicking on a link, so the code is similar to this: page_result = page.link_with( :text => 'link_text' ).click So far I get the result with a wrong encoding, so I see characters like: 'T?tulo:' instead of 'Título:' I've tried several approaches, including: Stating the encoding in the first request using the agent like: @page_search = @agent.get( :url => 'http://www.server.com', :headers => { 'Accept-Charset' => 'ISO-8859-1' } ) Stating the encoding for the page itself page_result.encoding = 'ISO-8859-1' But I must be doing something wrong: a simple puts always show the wrong characters. Do you know how to state the encoding? Thanks in advance, Added: Executable example: require 'rubygems' require 'mechanize' WWW::Mechanize::Util::CODE_DIC[:SJIS] = "ISO-8859-1" @agent = WWW::Mechanize.new @page = @agent.get( :url => 'http://www.mcu.es/webISBN/tituloSimpleFilter.do?cache=init&layout=busquedaisbn&language=es', :headers => { 'Accept-Charset' => 'utf-8' } ) puts @page.body

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  • Any Flex 4 migration experience?

    - by Gok Demir
    My current development stack is MySQL + iBatis + Spring + Spring BlazeDS Integration 1.01 + BlazeDS 3.2 and Flex 3 with Mate 0.8.9 framework. Now Flash Builder 4 beta 2 is out. There are cool features like Data Centric Development (DCD), form generation etc... Do you know how Spring Blazeds Integration works with BlazeDS 4? What about Mate? Is there any issues with Flex 4 ? How DCD suits with mate eventmaps. I know it is better to try it out myself but I just want to check if somebody ever tried to migrate Flex 4. If so what are the issues? Did you notice any productivity speed up? Thanks.

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  • Firefox jQuery Drag and Drop File Upload together with PHP

    - by tonsils
    Hi, Hoping to get some assistance but I am after a jQuery/PHP means of allowing a user to drag and drop files and then via PHP, upload one or more files to a specific directory on a Linux box. I only have Firefox 3.6 as my base browser but can also move to FFox if need be. Cann use any HTML5 features as long as I'm using Firefox 3.6 Can someone possibly point me to any examples/sites where this process is demonstrated? I have had a look at http://www.plupload.com/index.php but this does not work in IE6. As mentioned, would like it to work in FFox only. Thanks.

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  • Dashcode development for iPhone resources

    - by gonso
    I've been developing web applications and iPhone applications for years. Now I want to create a web application oriented to the iPhone browser. I willing to use Dashcode, since it seams to have tons of cool features that make my web app look like an native iPhone app. The problem I face is twofold: On one side I don't know it Dashcode development will allow me to do all I want (session control, runtime datasources, etc); on the other side I'm having a hard time finding good documentation, tutorials and books on Dashcode programing for the iPhone. Looks like 90% of the links out there are for Dashcode widgets. Can you advise me on the best resources to learn Dashcode (for mobile Safari) programming? Thanks Gonso

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  • HTTP Header - ntCoent-Length

    - by DMcKenna
    I get the following HTTP response headers in a particular response. All looks okay. However I have noticed that the content-length appears twice... Content-Length: 2424 ntCoent-Length: 2424 Is there a particular reason why the content-length is returned a second time as ntCoent-Length? HTTP/1.0 200 OK Date: Wed, 26 May 2010 09:38:19 GMT Server: Apache P3P: CP="NOI DSP COR CURa ADMa TA1a OUR BUS IND UNI COM NAV INT" Accept-Charset: iso-8859-1, unicode-1-1;q=0.8 Expires: Sun, 15 Jul 1990 00:00:00 GMT Pragma: no-cache Cache-Control: no-cache Content-Language: en ntCoent-Length: 2424 Connection: close Content-Type: text/html;charset=iso-8859-1 Content-Length: 2424

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  • mysql encoding problem

    - by Syom
    i have a proble, when insert something in foreign language into database. i have set the collation of database to utf8_general_ci(try utf8_unicod_ci too). but when i insert some text into table, it was saved like this Õ€Õ¡ÕµÕ¥Ö€Õ¥Õ¶ Ô±Õ¶Õ¸Ö‚Õ¶ but when i read from database, text shows in correct form. it looks like that only in database. i have set encoding in my html document to charset=UTF-8 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> and i set mysql_query("SET NAMES UTF-8"); mysql_query("SET CHARACTER SET UTF-8"); when conecting to database. so i think that i' ve done everything, but it still save in that anknown format. could you help me. thanks in advance

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  • Brute force characters into a textbox in c#

    - by Fred Dunly
    Hey everyone, I am VERY new to programming and the only language I know is C# So I will have to stick with that... I want to make a program that "test passwords" to see how long they would take to break with a basic brute force attack. So what I did was make 2 text boxes. (textbox1 and textbox2) and wrote the program so if the text boxes had the input, a "correct password" label would appear, but i want to write the program so that textbox2 will run a brute force algorithm in it, and when it comes across the correct password, it will stop. I REALLY need help, and if you could just post my attached code with the correct additives in it that would be great. The program so far is extremely simple, but I am very new to this, so. Thanks in advance. private void textBox2_TextChanged(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { if (textBox2.Text == textBox1.Text) { label1.Text = "Password Correct"; } else { label1.Text = "Password Wrong"; } } private void label1_Click(object sender, EventArgs e) { } } } `

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  • CKeditor integration with FCKeditor filebrowser

    - by -provideralexander.rios
    Hi everybody. I'm using CKeditor 3 and I need integrate a filebrowser/uploader. It need to be free. I tried to integrate the one what come with FCKeditor but I allways got and xml error: http://pastie.org/743024 I'm trying to do it in this way: <script type="text/javascript"> window.onload = function(){ CKEDITOR.config.language='es'; CKEDITOR.config.forcePasteAsPlainText = true; CKEDITOR.config.enterMode = CKEDITOR.ENTER_DIV; CKEDITOR.replace('ncCont',{ filebrowserBrowseUrl: 'filemanager/browser/default/browser.html', filebrowserUploadUrl : 'filemanager/connectors/php/upload.php' }); }; </script> Can the FCKeditor get integrated with CKeditor?? if yes, how this can get done? if don't, knows somebody a free filebrowser/uploader?? Thanks in advance.

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