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  • Rle Encoding...What's the wrong?

    - by FILIaS
    I'm trying to make a Rle Encoder Programme.I read the way it works on notes on net. And i tried to fix my code! Regardless I think that the structure and logic of code are right,the code doesnt work! It appears some strange 'Z' as it runs. I really cant find what;s wrong! Could u please give me a piece of advice? Thanx in advance... #include <stdio.h> int main() { int count; unsigned char currChar,prevChar=EOF; while(currChar=getchar() != EOF) { if ( ( (currChar='A')&&(currChar='Z') ) || ( (currChar='a')&&(currChar='z') ) ) { printf("%c",currChar); if(prevChar==currChar) { count=0; currChar=getchar(); while(currChar!='EOF') { if (currChar==prevChar) count++; else { if(count<=9) printf("%d%c",count,prevChar); else { printf("%d%c",reverse(count),prevChar); } prevChar=currChar; break; } } } else prevChar=currChar; if(currChar=='EOF') { printf("%d",count); break; } } else { printf("Error Message:Only characters are accepted! Please try again! False input!"); break; } } return 0; } int reverse(int x) { int piliko,ypoloipo,r=0; x=(x<0)?-x:x; while (x>0) { ypoloipo=x%10; piliko=x/10; r=10*r+ypoloipo; x=piliko; } printf("%d",r); return 0; }

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  • jqModal dialog always under overlay.

    - by ProfK
    I have the following code, and am at my wit's end because the dialog always appears under the overlay. Any advice will be most appreciated: <head runat="server"> <title></title> <link href="../Styles/jqModal.css" rel="stylesheet" type="text/css" /> <style type="text/css"> #shift-edit-popup { display: none; } </style> <script src="../Scripts/jquery-1.4.2.js" type="text/javascript"></script> <script src="../Scripts/jqModal.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { $("#shift-edit-popup").jqm({ toTop: true }).jqmAddTrigger("#show-button"); }); </script> </head> <body> <form id="form" runat="server"> <input id="show-button" type="button" value="Show" /> <div id="shift-edit-popup"> <div> <asp:Label ID="resourceLabel" runat="server" AssociatedControlID="resourceList">Resource:</asp:Label> <asp:DropDownList ID="resourceList" runat="server" DataTextField="Name" DataValueField="ResourceId" Width="120px"> </asp:DropDownList> </div> </div> </body>

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  • How to speed up WPF programs?

    - by Sam
    I love programming with and for Windows Presentation Framework. Mostly I write browser-like apps using WPF and XAML. But what really annoys me is the slowness of WPF. A simple page with only a few controls loads fast enough, but as soon as a page is a teeny weeny bit more complex, like containing a lot of data entry fields, one or two tab controls, and stuff, it gets painful. Loading of such a page can take more than one second. Seconds, indeed, especially on not so fast computers (read: the customers computers) it can take ages. Same with changing values on the page. Everything about the WPF UI is somehow sluggy. This is so mean! They give me this beautiful framework, but make it so excruciatingly slow so I'll have to apologize to our customers all the time! My Question: How do you speed up WPF? How do you profile bottlenecks? How do you deal with the slowness? Since this seems to be an universal problem with WPF, I'm looking for general advice, useful for many situations and problems. Some other related questions: What tools do you use for WPF development Tools to develop WPF or Silverlight applications

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  • NSURL URLWithString: raises exception

    - by Stephen Darlington
    In short, [NSURL URLWithString:] appears to be raising an exception. According to the documentation "If the string was malformed, returns nil." There is no mention of an exception being raised under any circumstance. In addition to this, I am both encoding the URL and checking for nil before converting the string to a URL. Can anyone offer any advice as to which exception it could be or what other error checking I should be doing before converting the URL? In case you're interested in the details, the calling code looks like this: NSString* tmpText = [newUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; if (tmpText == nil) { // error handling } else { NSURL* tmpURL = [NSURL URLWithString:tmpText]; And this is a section from the crash report download from iTunes Connect: 8 libobjc.A.dylib 0x300c1f84 objc_exception_throw 9 CoreFoundation 0x3029a598 +[NSException raise:format:arguments:] 10 CoreFoundation 0x3029a538 +[NSException raise:format:] 11 Foundation 0x30696dde -[NSURL initWithString:relativeToURL:] 12 Foundation 0x30696cd8 +[NSURL URLWithString:relativeToURL:] 13 Foundation 0x30696cae +[NSURL URLWithString:] 14 Yummy 0x000146ca -[DeliciousPostCell setUrl:] + 46 It seems that the URL was in a "bad" format somehow but that should really be returning a nil not an exception. I have never seen the exception being raised myself so I can't use XCode to trap the code and see what's happening. And the user(s) that experienced the problem never contacted me directly so I can't ask for more details. Any suggestions greatly appreciated. Update (14/7/2009): Seems like such a hack, but I added an exception block around the suspect line. I also raised a Radar bug report (#7031551) suggesting that the code should match the documentation.

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  • C# Thread Pool Cross-Thread Communication

    - by Goober
    The Scenario I have a windows forms application containing a MAINFORM with a listbox on it. The MAINFORM also has a THREAD POOL that creates new threads and fires them off to do lots of different bits of processing. Whilst each of these different worker threads is doing its job, I want to report this progress back to my MAINFORM, however, I can't because it requires Cross-Thread communication. Progress So far all of the tutorials etc. that I have seen relating to this topic involve custom(ish) threading implementations, whereas I literally have a fairly basic(ish) standard THREAD POOL implementation. Since I don't want to really modify any of my code (since the application runs like a beast with no quarms) - I'm after some advice as to how I can go about doing this cross-thread communication. ALTERNATIVELY - How to implement a different "LOGTOSCREEN" method altogether (obviously still bearing in mind the cross-thread communication thing). WARNING: I use this website at work, where we are locked down to IE6 only, and the javascript thus fails, meaning I cannot click accept on any answers during work, and thus my acceptance rate is low. I can't do anything about it I'm afraid, sorry. EDIT: I DO NOT HAVE INSTALL RIGHTS ON MY COMPUTER AT WORK. I do have firefox but the proxy at work fails when using this site on firefox. FURTHER EDIT: I DO NOT WANT TO CHANGE MY THREADING IMPLEMENTATION. AT ALL! - Accept to enable cross-thread communication....why would a backgroundworker help here!?

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  • libdb4.6-dev vs libdb4.7-dev

    - by routinet
    I want to install PHP 5.3 on Ubuntu Intrepid. To install apxs, I need to install libaprutil1-dev, which depends on libdb4.6-dev. When I look at installing that, apt-get wants to remove the currently installed libdb-dev and libdb4.7-dev. Any advice on how to proceed? [root@server:/usr/local] #> apt-get -s install libaprutil1-dev Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. Since you only requested a single operation it is extremely likely that the package is simply not installable and a bug report against that package should be filed. The following information may help to resolve the situation: The following packages have unmet dependencies: libaprutil1-dev: Depends: libdb4.6-dev but it is not going to be installed E: Broken packages [root@server:/usr/local] #> apt-get -s install libdb4.6-dev Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: debhelper libltdl7-dev po-debconf intltool-debian libtool courier-ssl gettext libgdbm-dev libzip1 html2text autotools-dev libmail-sendmail-perl Use 'apt-get autoremove' to remove them. Suggested packages: db4.6-doc The following packages will be REMOVED: libdb-dev libdb4.7-dev The following NEW packages will be installed: libdb4.6-dev 0 upgraded, 1 newly installed, 2 to remove and 54 not upgraded. Remv libdb-dev [4.7.25.2ubuntu1] Remv libdb4.7-dev [4.7.25-3] Inst libdb4.6-dev (4.6.21-10 Ubuntu:8.10/intrepid) Conf libdb4.6-dev (4.6.21-10 Ubuntu:8.10/intrepid)

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  • ASP.NET Setting Culture with InitializeCulture

    - by Helen
    I have a website with three domains .com, .de and .it Each domain needs to default to the local language/culture of the country. I have created a base page and added an InitializeCulture Protected Overrides Sub InitializeCulture() Dim url As System.Uri = Request.Url Dim hostname As String = url.Host.ToString() Dim SelectedLanguage As String If HttpContext.Current.Profile("PreferredCulture").ToString Is Nothing Then Select Case hostname Case "www.domain.de" SelectedLanguage = "de" Thread.CurrentThread.CurrentUICulture = New CultureInfo(SelectedLanguage) Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(SelectedLanguage) Case "www.domain.it" SelectedLanguage = "it" Thread.CurrentThread.CurrentUICulture = New CultureInfo(SelectedLanguage) Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(SelectedLanguage) Case Else SelectedLanguage = "en" Thread.CurrentThread.CurrentUICulture = New CultureInfo(SelectedLanguage) Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(SelectedLanguage) End Select End If End Sub This is fine. The problem now occurs because we also want three language selection buttons on the home page so that the user can override the domain language. So on my Default.asp.vb we have three button events like this... Protected Sub langEnglish_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles langEnglish.Click Dim SelectedLanguage As String = "en" 'Save selected user language in profile HttpContext.Current.Profile.SetPropertyValue("PreferredCulture", SelectedLanguage) 'Force re-initialization of the page to fire InitializeCulture() Context.Server.Transfer(Context.Request.Path) End Sub But of course the InititalizeCulture then overrides whatever button selection has been made. Is there any way that the InitialCulture can check whether a button click has occurred and if so skip the routine? Any advice would be greatly appreciated, thanks.

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  • Scrolling a Canvas smoothly in Android

    - by prepbgg
    I'm new to Android. I am drawing bitmaps, lines and shapes onto a Canvas inside the OnDraw(Canvas canvas) method of my view. I am looking for help on how to implement smooth scrolling in response to a drag by the user. I have searched but not found any tutorials to help me with this. The reference for Canvas seems to say that if a Canvas is constructed from a Bitmap (called bmpBuffer, say) then anything drawn on the Canvas is also drawn on bmpBuffer. Would it be possible to use bmpBuffer to implement a scroll ... perhaps copy it back to the Canvas shifted by a few pixels at a time? But if I use Canvas.drawBitmap to draw bmpBuffer back to Canvas shifted by a few pixels, won't bmpBuffer be corrupted? Perhaps, therefore, I should copy bmpBuffer to bmpBuffer2 then draw bmpBuffer2 back to the Canvas. A more straightforward approach would be to draw the lines, shapes, etc. straight into a buffer Bitmap then draw that buffer (with a shift) onto the Canvas but so far as I can see the various methods: drawLine(), drawShape() and so on are not available for drawing to a Bitmap ... only to a Canvas. Could I have 2 Canvases? One of which would be constructed from the buffer bitmap and used simply for plotting the lines, shapes, etc. and then the buffer bitmap would be drawn onto the other Canvas for display in the View? I should welcome any advice! Answers to similar questions here (and on other websites) refer to "blitting". I understand the concept but can't find anything about "blit" or "bitblt" in the Android documentation. Are Canvas.drawBitmap and Bitmap.Copy Android's equivalents?

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  • What's the "best" database for embedded?

    - by mawg
    I'm an embedded guy, not a database guy. I've been asked to redesign an existing system which has bottlenecks in several places. The embedded device is based around an ARM 9 processor running at 220mHz. There should be a database of 50k entries (may increase to 250k) each with 1k of data (max 8 filed). That's approximate - I can try to get more precise figures if necessary. They are currently using SqlLite 2 and planning to move to SqlLite 3. Without starting a flame war - I am a complete d/b newbie just seeking advice - is that the "best" decision? I realize that this might be a "how long is a piece of string?" question, but any pointers woudl be greatly welcomed. I don't mind doing a lot of reading & research, but just hoped that you could get me off to a flying start. Thanks. p.s Again, a total rewrite, might not even stick with embedded Linux, but switch to eCos, don't worry too much about one time conversion between d/b formats. Oh, and accesses should be infrequent, at most one every few seconds. edit: ok, it seems they have 30k entries (may reach 100k or more) of only 5 or 6 fields each, but at least 3 of them can be a search key for a record. They are toying with "having no d/b at all, since the data are so simple", but it seems to me that with multiple keys, we couldn't use fancy stuff like a quicksort() type search (recursive, binary search). Any thoughts on "no d/b", just data-structures? Btw, one key is 800k - not sure how well SqlLite handles that (maybe with "no d/b" I have to hash that 800k to something smaller?)

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  • WCF net.tcp bindings, message formats and security questions

    - by RemotecUk
    Hi, sorry for the stupid questions but there are just some things about WCF I cant get my head around. Would be greatful for some advice on the following.... At a very basic level is it correct that WCF uses either Binary (Net.Tcp), HTTP or MSMQ to transfer my message on the wire? However is it true that in all cases, regardless of how the data is transferred the message itself in in the SOAP format with headers and a body? So its a sort of XML message that is transmitted in either HTTP/S or in a binary format. Is Net.Tcp a good choice for my client server app - its similar to a messenger app in that the clients are all remote users on the other side of the firewall to my server. Most things I am reading are telling to use WS* and HTTP. Is Net.Tcp secured by standard and without certificates? - that is - people cannot listen on the wire and decode the data thats going to and from. Is it possible to send a username and password using net.tcp and without an installed certificate? If so I presume I can hook this up to my membership provider and authenticate access to each method on my service contract implementation. I presume that with username and password security, the proxy is initialised with the username and password and that this information is is sent with every request. Then my membership provider will be invoked for each method call and do whatever it needs to do to get the authorisation for the method. Sorry for the dump of questions but would be great to know if Im thinking the right way about how WCF works. Thanks.

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  • Using a dynamic <script> (a <script> appended to the DOM by JavaScript) to load and initialize Click

    - by Bungle
    I'm creating an HTML/JavaScript widget to be used on third-party sites. This widget is generated by a <script> that our customers will insert on their page. The <script> creates an <iframe> in the customer's domain, and then creates and inserts all of that <iframe>'s content using JavaScript. It's important that this <iframe> contain Clicky's tracking code to monitor clicks on outbound links. Unfortunately, I'm not having any luck getting Clicky to work when I append the requisite <script> elements to the <iframe> using JavaScript. I first tried simply appending the Clicky tracking code to the <iframe> after appending some test outbound links, hoping that Clicky could attach to those automatically as it does on a static page. That didn't seem to work, so my next inclination was to use the "advanced_disable" custom option and use clicky.log() on the links I want to track. Here's a link to a test page that's along those lines: http://onespot.wsj.com/static/clicky_iframe_test.html When clicking a link on that test page, the action is not logged in Clicky, and a JavaScript error appears: clicky is not defined This ("clicky") appears to be defined in http://static.getclicky.com/js, which I confirmed through the Firebug console is indeed loading before I click a test outbound link. Has anyone successfully loaded Clicky in this way? If so, could you provide some sample code, a link to a working implementation, or some feedback on what's wrong with my code? I would also be interested to know if this is even possible. Thanks very much for any help or advice!

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  • Automatic INotifyPropertyChanged Implementation through T4 code generation?

    - by chrischu
    I'm currently working on setting up a new project of mine and was wondering how I could achieve that my ViewModel classes do have INotifyPropertyChanged support while not having to handcode all the properties myself. I looked into AOP frameworks but I think they would just blow up my project with another dependency. So I thought about generating the property implementations with T4. The setup would be this: I have a ViewModel class that declares just its Properties background variables and then I use T4 to generate the Property Implementations from it. For example this would be my ViewModel: public partial class ViewModel { private string p_SomeProperty; } Then T4 would go over the source file and look for member declarations named "p_" and generate a file like this: public partial class ViewModel { public string SomeProperty { get { return p_SomeProperty; } set { p_SomeProperty= value; NotifyPropertyChanged("SomeProperty"); } } } This approach has some advantages but I'm not sure if it can really work. So I wanted to post my idea here on StackOverflow as a question to get some feedback on it and maybe some advice how it can be done better/easier/safer.

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  • stoping doGet/dopost in java servlets ?

    - by bosso
    Hello everyone, I've been playing with Java Servlets and Ajax a bit, and I've got a situation on which I would really appreciate advice. Let's say I have HTML page with a start and stop buttons, and as a result of clicking start button, overridden doGet (or doPost) method on a servlet is invoked which computes something that takes a long time to complete. (e.g. a giant loop, or even Infinite loop, doesn't matter, I'm interested in concepts here). So, I'm asking you: 1.What would be my options to kill / shut down / halt / exit doGet method whan I hit stop button on a web page? Do I use threading here, or there is simpler way? I take it that using System exit is not a very good idea, right? ;) 2.So, let's say I implement code for stopping doGet method. What would happen If I hit start on one browser(e.g.IE), and while this long computation takes place open new tab or other browser(e.g.Firefox) and open same url and hit stop? Would that stop my original computation? Is there any easy way to avoid this? I know that questions are a bit off, as I'm just starting with server-side of things. :) Any suggestions would be greatly appreciated!

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  • Structuring projects & dependencies of large winforms applications in C#

    - by Benjol
    UPDATE: This is one of my most-visited questions, and yet I still haven't really found a satisfactory solution for my project. One idea I read in an answer to another question is to create a tool which can build solutions 'on the fly' for projects that you pick from a list. I have yet to try that though. How do you structure a very large application? Multiple smallish projects/assemblies in one big solution? A few big projects? One solution per project? And how do you manage dependencies in the case where you don't have one solution. Note: I'm looking for advice based on experience, not answers you found on Google (I can do that myself). I'm currently working on an application which has upward of 80 dlls, each in its own solution. Managing the dependencies is almost a full time job. There is a custom in-house 'source control' with added functionality for copying dependency dlls all over the place. Seems like a sub-optimum solution to me, but is there a better way? Working on a solution with 80 projects would be pretty rough in practice, I fear. (Context: winforms, not web) EDIT: (If you think this is a different question, leave me a comment) It seems to me that there are interdependencies between: Project/Solution structure for an application Folder/File structure Branch structure for source control (if you use branching) But I have great difficulty separating these out to consider them individually, if that is even possible. I have asked another related question here.

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  • Using ContentProviderOperation to update and insert contacts

    - by Bogus
    Hello, I faced the problem updating/insertng contacts on Android 2.0+. There is no problem to insert a new contact when phone book is empty but when I did it 2nd time some fileds like TEL, EMAIL are doubled and tripped etc. but N, FN, ORG are ok (one copy). After getting and advice of other member this forum I updated a contact first and then ContentProviderResult[] returned uri's with null then I do an insert action and it went ok but after that I made an update and all contacts are aggregated into one - i got 1 contact insted 3 which existed in phone book. This one was damaged, the contact fields are randomly built. I set Google account. Code: ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>(); ops.add(ContentProviderOperation.newUpdate(ContactsContract.RawContacts.CONTENT_URI) .withValue(RawContacts.AGGREGATION_MODE, RawContacts.AGGREGATION_MODE_DISABLED) .withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, accountType) .withValue(ContactsContract.RawContacts.ACCOUNT_NAME, accountName) .build()); // add name ContentProviderOperation.Builder builder = ContentProviderOperation.newUpdate(ContactsContract.Data.CONTENT_URI); builder.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0); builder.withValue(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE); builder.withValue(ContactsContract.CommonDataKinds.StructuredName.PHONETIC_FAMILY_NAME, name); // phones ContentProviderOperation.Builder builder = ContentProviderOperation.newUpdate(ContactsContract.Data.CONTENT_URI); builder.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0); builder.withValue(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE); builder.withValue(ContactsContract.CommonDataKinds.Phone.NUMBER, phoneValue); builder.withValue(ContactsContract.CommonDataKinds.Phone.TYPE, phoneType); builder.withValue(ContactsContract.CommonDataKinds.Phone.LABEL, phoneLabel); ops.add(builder.build()); // emails ... // orgs ... try { ContentProviderResult[] result = mContentResolver.applyBatch(ContactsContract.AUTHORITY, ops); } } catch (Exception e) { Log.e(LOG_TAG, "Exception while contact updating: " + e.getMessage()); } What is wrong in this solution ? How does work aggregation engine ? I will be glad for help. Bogus

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  • using text and ntext SQL Datatypes in RPG

    - by David Stratton
    I'll preface this with saying that I'm a .NET developer, and am NOT an RPG developer. I'm working with one of our RPG developers to come up with a solution, so any suggestions you provide will get passed to him. We have a scenario where we want our iSeries to read from a SQL Server database. One of the columns is a TEXT column. IN RPG, there is no equivalent data type to use for this. We've gone back and forth on this, and our current plan is to change course, and have our SQL Server write out a text file, which the iSeries can pick up and parse. This is, however, a last resort option, as the data in the file is sensitive, and we'd like to avoid the additional security overhead. We've already got the SQL Server locked down as tight as possible (one user only has read access to this, and that user is an iSeries user.) We don't want to have to worry about transferring files back and forth. However, at this point, we see no other option. We have no in-house Java developers, and need to do this in RPG. So I'm wondering if there are any RPG developers out there who have faced this situation and have any advice.

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  • Ruby on Rails: How to sanitize a string for SQL when not using find?

    - by williamjones
    I'm trying to sanitize a string that involves user input without having to resort to manually crafting my own possibly buggy regex if possible, however, if that is the only way I would also appreciate if anyone can point me in the right direction to a regex that is unlikely to be missing anything. There are a number of methods in Rails that can allow you to enter in native SQL commands, how do people escape user input for those? The question I'm asking is a broad one, but in my particular case, I'm working with a column in my Postgres database that Rails does not natively understand as far as I know, the tsvector, which holds plain text search information. Rails is able to write and read from it as if it's a string, however, unlike a string, it doesn't seem to be automatically escaping it when I do things like vector= inside the model. For example, when I do model.name='::', where name is a string, it works fine. When I do model.vector='::' it errors out: ActiveRecord::StatementInvalid: PGError: ERROR: syntax error in tsvector: "::" "vectors" = E'::' WHERE "id" = 1 This seems to be a problem caused by lack of escaping of the semicolons, and I can manually set the vector='\:\:' fine. I also had the bright idea, maybe I can just call something like: ActiveRecord::Base.connection.execute "UPDATE medias SET vectors = ? WHERE id = 1", "::" However, this syntax doesn't work, because the raw SQL commands don't have access to find's method of escaping and inputting strings by using the ? mark. This strikes me as the same problem as calling connection.execute with any type of user input, as it all boils down to sanitizing the strings, but I can't seem to find any way to manually call Rails' SQL string sanitization methods. Can anyone provide any advice?

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  • Seperating Javascript and Html, when dynamically adding html via javascript

    - by optician
    I am currently building a very dynamic table for a list application, which will basically perform basic CRUD functions via AJAX. What I would like to do is separate the visual design and javascript to the point where I can change the design side without touching the JS side. This would only work where the design stays roughly the same(i would like to use it for rapid protyping) Here is an example. <table> <tr><td>record-123</td><td>I am line 123</td><td>delete row</td></tr> <tr><td>record-124</td><td>I am line 124</td><td>delete row</td></tr> <tr><td>record-125</td><td>I am line 125</td><td>delete row</td></tr> <tr><td>add new record</td></tr> </table> Now, when I add a new record, I would like to insert a new row of html, but I would rather not put this html into the javascript file. What I am considering is creating a row like this on the page, near the table. <tr style='visble:none;' id='template-row'><td>record-id</td><td>content-area</td><td>delete row</td></tr> And when I come to add the new row, I search the page for the tags with the id=template-row , and then grab it, do a string replace on it, and then put it in the right place in the page. As long as the design doesn't shift radically, and I keep the placeholder strings the same, it means designs can be quickly modified without touching the js. Can any give any advice on a methodology like this?

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  • How to extend an 'unloadable' Rails plugin?

    - by Vitaly Kushner
    I'm trying to write a plugin that will extend InheritedResources. Specifically I want to rewrite some default helpers. And I'd like it to "just work" once installed, w/o any changes to application code. The functionality is provided in a module which needs to be included in a right place. The question is where? :) The first attempt was to do it in my plugin's init.rb: InheritedResources::Base.send :include, MyModule It works in production, but fails miserably in development since InheritedResource::Base declared as unloadable and so its code is reloaded on each request. So my module is there for the first request, and then its gone. InheritedResource::Base is 'pulled' in again by any controller that uses it: Class SomeController < InheritedResource::Base But no code is 'pulling in' my extension module since it is not referenced anywhere except init.rb which is not re-loaded on each request So right now I'm just including the module manually in every controller that needs it which sucks. I can't even include it once in ApplicationController because InheritedResources inherites from it and so it will override any changes back. update I'm not looking for advice on how to 'monkey patch'. The extension is working in production just great. my problem is how to catch moment exactly after InheritedResources loaded to stick my extension into it :) update2 another attempt at clarification: the sequence of events is a) rails loads plugins. my plugin loads after inherited_resources and patches it. b) a development mode request is served and works c) rails unloads all the 'unloadable' code which includes all application code and also inherited_resources d) another request comes in e) rails loads controller, which inherites from inherited resources f) rails loads inherited resources which inherit from application_controller g) rails loads application_contrller (or may be its already loaded at this stage, not sure) g) request fails as no-one loaded my plugin to patch inherited_resources. plugin init.rb files are not reloaded I need to catch the point in time between g and h

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  • Converting QXmlItem to QtDomElement or similar?

    - by EightyEight
    Hello everyone. I'm parsing a fairly complicated XML file of the following structure: <root> ... ... <item> <subitem id="1"/> <text> text1 </text> </item> <item> <subitem id="2"/> <text> text2 </text> </item> ... <item> ... </item> ...</root> It's pretty crude but you get my drift I hope. I'm primarily interested in "item" nodes. So I wrote the following code (directly out of the Qt's online manual): QXmlQuery query; query.setQuery("//item/"); QXmlResultItems result; query.evaluateTo(&result); QXmlItem item(result.next()); while (!item.isNull()) { if (item.isNode()) { // WHAT DO I DO NOW? } item = result.next(); } Now, QXmlItem appears to represent two concepts, a literal value (like a string) or a Node, (which is what item.isNode() is doing). Unfortunately, I can't grasp how to convert the QXmlItem to something that will query-able again. In particular from the example above I'd like to grab the "id" attribute, and the text element. Can I do this using the XQuery approach, or am I way off base here? Any advice? Thanks!

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  • People not respecting good practices at workplace

    - by VexXtreme
    Hi There are some major issues in my company regarding practices, procedures and methodologies. First of all, we're a small firm and there are only 3-4 developers, one of which is our boss who isn't really a programmer, he just chimes in now and then and tries to do code some simple things. The biggest problems are: Major cowboy coding and lack of methodologies. I've tried explaining to everyone the benefits of TDD and unit testing, but I only got weird looks as if I'm talking nonsense. Even the boss gave me the reaction along the lines of "why do we need that? it's just unnecessary overhead and a waste of time". Nobody uses design patterns. I have to tell people not to write business logic in code behind, I have to remind them not to hardcode concrete implementations and dependencies into classes and cetera. I often feel like a nazi because of this and people think I'm enforcing unnecessary policies and use of design patterns. The biggest problem of all is that people don't even respect common sense security policies. I've noticed that college students who work on tech support use our continuous integration and source control server as a dump to store their music, videos, series they download from torrents and so on. You can imagine the horror when I realized that most of the partition reserved for source control backups was used by entire seasons of TV series and movies. Our development server isn't even connected to an UPS and surge protection. It's just plugged straight into the wall outlet. I asked the boss to buy surge protection, but he said it's unnecessary. All in all, I like working here because the atmosphere is very relaxed, money is good and we're all like a family (so don't advise me to quit), but I simply don't know how to explain to people that they need to stick to some standards and good practices in IT industry and that they can't behave so irresponsibly. Thanks for the advice

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  • What do you do when your team leader doesn't know something simple?

    - by leppie
    What do you do when your team leader does not know why the following is wrong: a.SomeProp = a.SomeProp; // no funny side-effects, plain old property He claims 15 years of programming experience, and 7 years of C#/.NET. To me, someone of 3-6 months experience should know this. What I have done: Tried to make him understand why it is wrong. He told me not to criticize him. Told him it's not about criticism, but project risk. He got upset with me. I have addressed the risk of this person with our manager (few weeks back). I have addressed my concerns with this person with our manager several times, since 1 month after I started there (7 months now). Currently, I just feel like just not going back to work... I hardly have any nails left, and this is really just the tip of the iceberg. As nothing has changed after I have spoken to the manager for the last 6 months, I feel like I need to make some sort of ultimatum. Do you have any suggestions? PS: Please do not make this subjective. I have no need for arguing. The level of incompetence is pretty clear. I just need some advice before going insane. Update: Thanks for all the answers (trying to update before close, buggers). I think I will forward this thread to our manager :) Update 2: I sent my manager another mail with my concerns, and a link to this question. Awaiting response.

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  • linux nooB: Installing ffmpeg + dependencies on aws linux ami (repo issues)

    - by HdN8
    Im installing ffmpeg to run on an amazon linux ami, and have added the rpmforge repo and the dag repo. Here are some guidelines I'm using for reference: TWoZaO and Razuna The rpmforge repo has ffmpeg, but if you try to install it then it will complain that is missing dependencies (for me libSDL-1.2.so.0()(64bit)). Regardless I will install ffmpeg from svn so I can be sure to enable the options I want (namely libx264). It seems strange to me though that SDL is not in rpmforge or dag, and in according to both of my references above, it should be there. I tried to grab it manually from here, but it needs these dependencies, so no-go: error: Failed dependencies: SDL = 1.2.10-8.el5 is needed by SDL-devel-1.2.10-8.el5.x86_64 alsa-lib-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libGL-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libGLU-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libSDL-1.2.so.0()(64bit) is needed by SDL-devel-1.2.10-8.el5.x86_64 libX11-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXext-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXrandr-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXrender-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXt-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 Any advice for a linux nooB lost in a mess of repos and dependency errors?

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  • Good DB Migrations for CakePHP?

    - by Martin Westin
    Hi, I have been trying a few migration scripts for CakePHP but I ran into problems with all of the in some form or another. Please advice me on a migration option for Cake that you use live and know works. I'd like the following "features": -Support CakePHP 1.2(e.g. CakeDCs migrations will only be an option when 1.3 is stable and my app migrated to the new codebase) -Support for (or at least not halt on) Models with a different database config. -Support Models in sub-folders of app/models -Support Models in plugins -Support tables that do not conform to Cake conventions (I have a few special tables that do not have a single primary key field and need to keep them) -Plays well with automated deployment via Capistrano and Git. I do not need rails-style versioned files a git versioned schema file that is compared live to the existing schema will do. That is: I like the SchemaShell in Cake apart from it not being compatible with most of my requirements above. I have looked at and tested: CakePHP Schema Shell http://book.cakephp.org/view/734/Schema-management-and-migrations CakeDC migrations http://cakedc.com/downloads/view/cakephp_migrations_plugin YAML migrations http://github.com/georgious/cakephp-yaml-migrations-and-fixtures joelmoss migrations http://code.google.com/p/cakephp-migrations

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  • SMO restore of SQL database doesn't overwrite

    - by Tom H.
    I'm trying to restore a database from a backup file using SMO. If the database does not already exist then it works fine. However, if the database already exists then I get no errors, but the database is not overwritten. The "restore" process still takes just as long, so it looks like it's working and doing a restore, but in the end the database has not changed. I'm doing this in Powershell using SMO. The code is a bit long, but I've included it below. You'll notice that I do set $restore.ReplaceDatabase = $true. Also, I use a try-catch block and report on any errors (I hope), but none are returned. Any obvious mistakes? Is it possible that I'm not reporting some error and it's being hidden from me? Thanks for any help or advice that you can give! function Invoke-SqlRestore { param( [string]$backup_file_name, [string]$server_name, [string]$database_name, [switch]$norecovery=$false ) # Get a new connection to the server [Microsoft.SqlServer.Management.Smo.Server]$server = New-SMOconnection -server_name $server_name Write-Host "Starting restore to $database_name on $server_name." Try { $backup_device = New-Object("Microsoft.SqlServer.Management.Smo.BackupDeviceItem") ($backup_file_name, "File") # Get local paths to the Database and Log file locations If ($server.Settings.DefaultFile.Length -eq 0) {$database_path = $server.Information.MasterDBPath } Else { $database_path = $server.Settings.DefaultFile} If ($server.Settings.DefaultLog.Length -eq 0 ) {$database_log_path = $server.Information.MasterDBLogPath } Else { $database_log_path = $server.Settings.DefaultLog} # Load up the Restore object settings $restore = New-Object Microsoft.SqlServer.Management.Smo.Restore $restore.Action = 'Database' $restore.Database = $database_name $restore.ReplaceDatabase = $true if ($norecovery.IsPresent) { $restore.NoRecovery = $true } Else { $restore.Norecovery = $false } $restore.Devices.Add($backup_device) # Get information from the backup file $restore_details = $restore.ReadBackupHeader($server) $data_files = $restore.ReadFileList($server) # Restore all backup files ForEach ($data_row in $data_files) { $logical_name = $data_row.LogicalName $physical_name = Get-FileName -path $data_row.PhysicalName $restore_data = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") $restore_data.LogicalFileName = $logical_name if ($data_row.Type -eq "D") { # Restore Data file $restore_data.PhysicalFileName = $database_path + "\" + $physical_name } Else { # Restore Log file $restore_data.PhysicalFileName = $database_log_path + "\" + $physical_name } [Void]$restore.RelocateFiles.Add($restore_data) } $restore.SqlRestore($server) # If there are two files, assume the next is a Log if ($restore_details.Rows.Count -gt 1) { $restore.Action = [Microsoft.SqlServer.Management.Smo.RestoreActionType]::Log $restore.FileNumber = 2 $restore.SqlRestore($server) } } Catch { $ex = $_.Exception Write-Output $ex.message $ex = $ex.InnerException while ($ex.InnerException) { Write-Output $ex.InnerException.message $ex = $ex.InnerException } Throw $ex } Finally { $server.ConnectionContext.Disconnect() } Write-Host "Restore ended without any errors." }

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