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  • Good book on Castle Project?

    - by David
    Does anyone know of a good book on the Castle Project? I'm interested in learning more about any of the Castle projects (ActiveRecord, MonoRail, Windsor, anything!) and searches for Castle on Amazon are a little frustrating with the need to weed out all the fiction and nonsense.

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  • Is there a way to automatically update the documentation in an R package?

    - by David
    I used 'package.skeleton()' to generate .Rd help files a few months ago. I have edited these files, and I have also changed the functions, removed some functions, added others. Is there a function that automates updating the Rd files? update A nice package was just released called Rd2roxygen, it is described by the author Yihui Xie on his blog. As the name implies, this package allows one to retroactively insert documentation currently contained in .Rd into .R files. Sounds like a promising approach for both learning roxygen and for converting packages currently in development to R packages. Woo hoo. Thanks Yihui!

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  • Most hazardous performance bottleneck misconceptions

    - by David Murdoch
    The guys who wrote Bespin (cloud-based canvas-based code editor [and more]) recently spoke about how they re-factored and optimize a portion of the Bespin code because of a misconception that JavaScript was slow. It turned out that when all was said and done, their optimization produced no significant improvements. I'm sure many of us go out of our way to write "optimized" code based on misconceptions similar to that of the Bespin team. What are some common performance bottleneck misconceptions developers commonly subscribe to?

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  • Jquery Event onChange for Div

    - by David
    I have a page with the following two divs: <div id="searchResults"> </div> <div class="postSearchOptions" style="display: none;"> </div> Is there any way that I can make the "postSearchOptions" div appear when the "searchResults" div is updated by an AJAX call? I don't control the AJAX calls and I want to detect any change in the "searchResults" div. I tried writing the following JQuery code, but then realized that it requires Jquery 1.4 and I only have 1.3: $("#searchResults").live("change", function() { $(".postSearchOptions").css("display", "inline"); }); Is there any way to catch the event of the searchResults div changing using either standard JavaScript or Jquery 1.3? Thanks!

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  • Trouble getting $.ajax() to work in PhoneGap against a locally hosted server

    - by David Gutierrez
    Currently trying to make an ajax post request to an IIS Express hosted MVC 4 Web API end point from an android VM (Bluestacks) on my machine. Here are the snippets of code that I am trying, and cannot get to work: $.ajax({ type: "POST", url: "http://10.0.2.2:28434/api/devices", data: {'EncryptedPassword':'1234','UserName':'test','DeviceToken':'d234'} }).always(function( data, textStatus, jqXHR ) { alert( textStatus ); }); Whenever I run this request I always get back a textStatus of 'error'. After hours of trying different things, I pushed my End Point to an actual server, and was able to actually get responses back in PhoneGap if I built up an XMLHttpRequest by hand, like so: var request = new XMLHttpRequest(); request.open("POST", "http://172.16.100.42/MobileRewards/api/devices", true); request.onreadystatechange = function(){//Call a function when the state changes. console.log("state = " + request.readyState); console.log("status = " + request.status); if (request.readyState == 4) { if (request.status == 200 || request.status == 0) { console.log("*" + request.responseText + "*"); } } } request.send("{EncryptedPassword:1234,UserName:test,DeviceToken:d234}"); Unfortunately, if I try to use $.ajax() against the same end point in the snippet above I still get a status text that says 'error', here is that snippet for reference: $.ajax({ type: "POST", url: "http://172.16.100.42/MobileRewards/api/devices", data: {'EncryptedPassword':'1234','UserName':'test','DeviceToken':'d234'} }).always(function( data, textStatus, jqXHR ) { alert( textStatus ); }); So really, there are a couple of questions here. 1) Why can't I get any ajax calls (post or get) to successfully hit my End Point when it's hosted via IIS Express on the same machine that the Android VM is running? 2) When my end point is hosted on an actual server, through IIS and served through port 80, why can't I get post requests to be successful when I use jquery's ajax calls? (Even though I can get it to work by manually creating an XMLHttpRequest) Thanks

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  • Select from table and function

    - by David Oneill
    I have a function that returns a table. The returned table contains (among other things) a store_id. I can get the store_id for a particular transaction_id and city_id as follows: select store_id from table(f_get_store(city_id, transaction_id)); I have another table that contains a list of transactions (which includes transaction_id and city_id). I want a query that returns store_id, city_id, transaction_id for every entry in the transaction table. My first guess was: select f_get_store(city_id, transaction_id), city_id, transaction_id from table; (simplified away the unimportant details) However, this yields an "ORA-00932: inconsistent datatypes" error. How do I need to structure this query? (I'm using Oracle)

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  • Closing an EDM ObjectContext?

    - by David Veeneman
    I am getting started with the ADO.NET Entity Framework 4.0. I have created an EDM and data store for the app, and it successfully retrieves entities. The application holds the EDM's ObjectContext as a member-level variable, which it uses to call ObjectContext.SaveChanges(). So far, so good. I am going to refactor to repositories later. Right now, my question is a bit more basic: When I am finished with the EDM, what do I need to do to release it? Is it as simple as calling Dispose() on the ObjectContext? Thanks for your help.

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  • Creating an SQL Compact file: Template or script?

    - by David Veeneman
    I am writing an application that writes to SQL Compact files that have a specific schema, and I am now implementing the New File use case. The simplest approach seems to be to use a Template pattern: first, create a template file that lives in the application directory. Then, when the user selects New File, the template is copied to the name and destination specified by the user in a New File dialog. The alternative is a scripted approach: Use the same New File dialog, but dispense with the template file. Instead, create an empty SQL Compact file using the name/destination specified by the user, and then execute a T-SQL script on it from managed code. At this point, I am leaning toward the Template approach, because it is simpler. Is there any reason I should not use that approach? Thanks for your help.

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  • Why is the software world full of status codes?

    - by David V McKay
    Why did programmers ever start using status codes? I mean, I guess I could imagine this might be useful back in the days when a text string was an expensive resource. WAYYY back then. But even after we had megabytes of memory to work with, we continued to use them. What possible advantage could there be for obfuscating the meaning of an error message or status message behind a status code?

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  • Voting software with remote units - architectural questions

    - by David Neale
    I'm looking at designing some software that registers live votes (let's say A,B,C or D). The vote needs to be picked up and processed by a .NET engine. The remote voting units should be as small as possible. What form of data transmission should be used for the voting? The data is obviously very simple but there is a need to make sure each unit can only vote once per question. How would the data be received by the computer running the software?

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  • Flex: Run scripts before/after build?

    - by David Wolever
    Currently I'm building my Flex projects using Flex Builder's "built in" build system (ie, "clicking the run button"), but I'd like to start running scripts before/after the build. What's the easiest way to do that? Or, even, where should I start looking?

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  • SQL Comparison Tools

    - by David Ward
    Which SQL comparison tool would you recommend for SQL server database comparisons. I've been looking at SQL Compare and SQL Delta. I'd like the ability to compare and sync database schema and data.

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  • Android - Audio recorder FileNotFound

    - by david
    Hi, I'm trying to record audio this.recorder = new android.media.MediaRecorder(); this.recorder.setAudioSource(android.media.MediaRecorder.AudioSource.MIC); this.recorder.setOutputFormat(android.media.MediaRecorder.OutputFormat.DEFAULT); this.recorder.setAudioEncoder(android.media.MediaRecorder.AudioEncoder.DEFAULT); this.recorder.setOutputFile("pruebaAudioRecorder.mp4"); this.recorder.prepare(); this.recorder.start(); but when i call prepare method throws the FileNotFound exception. Should I create the file before prepare method? something like new File(...) If so, which should be the file path? thx a lot.

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  • How can I disable all images for an JFace menu but leave them enabled in the toolbar

    - by David
    If I create a set of actions to be used in a JFace application and I assign images to those actions, those images show up in both the toolbar (where I want them) and in the menus (where I don't want them). Other than supplying two completely separate sets of actions (which eliminates part of the point of actions in the first place), how can I arrange to have those images displayed ONLY in the toolbar, and have the menus display only text?

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  • Why doesn't this loop terminate?

    - by David
    Here's the sample code: public static void col (int n) { if (n % 2 == 0) n = n/2 ; if (n % 2 != 0) n = ((n*3)+1) ; System.out.println (n) ; if (n != 1) col (n) ; } this works just fine until it gets down to 2. then it outputs 2 4 2 4 2 4 2 4 2 4 infinitely. it seems to me that if 2 is entered as n then (n % 2 == 0) is true 2 will be divided by 2 to yeild 1. then 1 will be printed and since (n != 1) is false the loop will terminate. Why doesn't this happen?

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  • How can I modify a custom object in an ASP.NET FormView based on a button click?

    - by David
    I have a FormView that modifies an instance of a custom class. The various form controls (TextBox, DropDownList etc.) are working fine. However, I want to include a Button that will modify the state of the DataItem based on some very simple logic. There is no form control which could control this change in a non-confusing way. So I tried adding a Button and modifying the state of the DataItem in the code-behind. But the problem I encounter is that the FormView's DataItem is null/nothing. From reading this SO question it seems the problem is that the item is not databound when the Button's Click event is fired. So, the question; Is it possible to get the DataItem for the FormView during a Button's Click event? and if not: what are my options for implementing this? Thanks in advance. Edit: I can include any code that might help

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  • Where does the tomcat axis file server-config.wsdd come from?

    - by David Sykes
    Part of our system provides a web service through apache tomcat, the service is referenced in the server-config.wsdd file. Unfortunately nobody can remember how it got in there. The apache set up has changed, and I need to update the system for the new configuration. What magic keywords can I google for to help me work out how and why it got into the existing server-config.wsdd, and how it might fit into the new server-config.wsdd

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  • MS-Access nested DIR - check if a file exists elsewhere whilst looping through a folder

    - by David Carle
    I have used the DIR() command in Microsoft Access 2003 to loop through the files in folder A. This works fine, but I need to check if each file also exists in another location (folder B), and only process the file if it doesn't exist in folder B. The problem is that checking for the file existing in folder B also uses the DIR() function and this then resets or confuses the original one, with the result that no further files are found in folder A. Is there a way to check if a file exists without using DIR? Or, is there a way to have a separate instance of DIR? I suppose I could build a list of the files in folder A into an array and then process the entries in the array, but this seems rather 'clunky' Any suggestions for a better solution? Thanks

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  • How to retrieve caller context object in Ruby ?

    - by David
    Hi, hereafter is my piece of code that I want to simplify in order to avoid passing an extra argument on each call : module M def do_something(context) puts "Called from #{context}" end module_function :do_something end class Foo def do_stuff M.do_something(self) end end Foo.new.do_stuff Is there a way to do the same think without passing 'self' as an input argument to 'do_something' method like this ? module M def do_something puts "Called from #{method that returns caller object}" end module_function :do_something end class Foo def do_stuff M.do_something end end Foo.new.do_stuff Thanks for your support!

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  • Flex: Unexpected leakage with RemoteObject + IExternalizable?

    - by David Wolever
    I've been tinkering with IExternalizable, but I've noticed some unexpected behavior. I've got this class: public function readExternal(input:IDataInput):void { input.readObject(); input.readObject(); input.readObject(); } public function writeExternal(output:IDataOutput):void { output.writeObject("first string"); output.writeObject(424242); output.writeObject("second string"); } But when I try to serialize this class using AMF and send it to a remote server (via RemoteObject), Charles shows me that the request looks like this: But it seems wrong that my serialized object is leaking out into the rest of the request. So, what am I doing wrong? Is there some part of the documentation I've missed?

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  • Dynamically add a new row as Add in UITableView in edit mode?

    - by David.Chu.ca
    I have a table view with 0 or n rows of data from datastore. I added a customized Edit button on the right of the view's navigation bar. By default, when the edit button is clicked, in the action event, I set the view as edit mode: [self.tableView setEditing:YES animated:YES]; I would like to add a row at the end of the table view with Add button as an accessory on the left when the table view is in edit mode. And the "Add" row will not be displayed when the view is not in edit mode. This is very similar to the case of iPhon'e Contacts application when a contact is in edit mode. I am not sure if I need to add a row dynamically, and how if so? An alternative way I guess is to add more row when tableView:numberOfRowsInSection: is called? If later is the case, I have to make it hidden when the view is not in edit mode and visible when the view is in edit.

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  • Ad/Banner Management/Rotation for Ruby on Rails?

    - by David N. Welton
    Hi, I have a niche site that I'd like to sell banners for directly, rather than going through adsense. I need a system to manage the whole process: displaying ads and an administrative interface to manage them. It doesn't have to be anything terribly fancy, although open source is greatly preferred so that I can grow the system as needs be. Since the site itself is in Rails, I would prefer something for that environment. Googling turns up bunches of them in PHP, but the results are a bit polluted and I didn't have any luck finding one that was done in/for Rails. If I don't find one, I suppose I'll see what I can do to hack together something and release it myself under an open license. Another possibility is this: http://www.google.com/admanager - anyone have anything to say about it? Is it right for someone just selling a few ads for a not-so-big site? Thanks, Dave

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  • LINQ Join 2 List<T>s

    - by David Murdoch
    Preface: I don't understand what this does: o => o.ID, i => i.ID, (o, id) => o So go easy on me. :-) I have 2 lists that I need to join together: // contains ALL contacts for a customer. // Each item has a unique ID. // There are no duplicates. ContactCollection list1 = myCustomer.GetContacts(); // contains the customer contacts (in list1) relevant to a REPORT // the items in this list may have properties that differ from those in list1. /*****/// e.g.: /*****/ bool SelectedForNotification; /*****/// may be different. ContactCollection list2 = myReport.GetContacts(); I need to create a third ContactCollection that contains all of the contacts in list1 but with the properties of the items in list2, if they are there (list3.Count == list1.Count). I feel as though I'm not making any sense. So, please ask questions in the comments and I'll try to clarify.

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