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  • ngModel and component with isolated scope

    - by Artem Andreev
    I am creating simple ui-datetime directive. It splits javascript Date object into _date, _hours and _minutes parts. _date uses jquery ui datepicker, _hours and _minutes - number inputs. See example: http://jsfiddle.net/andreev_artem/nWsZp/3/ On github: https://github.com/andreev-artem/angular_experiments/tree/master/ui-datetime As far as I understand - best practice when you create a new component is to use isolated scope. When I tried to use isolated scope - nothing works. ngModel.$viewValue === undefined. When I tried to use new scope (my example, not so good variant imho) - ngModel uses value on newly created scope. Of course I can create directive with isolated scope and work with ngModel value through "=expression" (example). But I think that working with ngModelController is a better practice. My questions: Can I use ngModelController with isolated scope? If it is not possible which solution is better for creating such component?

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  • Android - Having a service run every day at 4AM

    - by Bara
    Hello everyone, I would like to know the best practices for running a Service every day at 4AM. The way I think I should be doing it is to create a new repeating alarm using AlarmManager and having it run the service at 4AM. Problem is, I'm not sure where to put the code to set the alarm. Do I do it in my main activity as one of the first tasks in the OnCreate method? Do I do some funky stuff with BroadcastReceivers and intents? What happens when a user updates my app? What happens when a user restarts? Any help with these questions would be much appreciated :) Sample code would be helpful as well! Bara

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  • What's the best Java-based forum software?

    - by SamS
    Somebody asked about .NET-based forum software here: http://stackoverflow.com/questions/11046/forum-software-recommandations-net Now I have a similar question but I prefer Java. I'm interested in building a community site so I'd like to know my options. It doesn't have to be free but it needs to be something a normal engineer can afford. Thanks! Update: I prefer a Java-based solution because I'm a Java developer and I figure that it would be easier for me to customize it or modify its code when necessary. I know that PHP forums such as phpBB and vBulletin are very popular but I wouldn't want to touch PHP code.

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  • WCF Service Memory Leaks

    - by Mubashar Ahmad
    Dear Devs I have a very small wcf service hosted in a console app. [ServiceContract] public interface IService1 { [OperationContract] void DoService(); } [ServiceBehavior(InstanceContextMode=InstanceContextMode.PerCall)] public class Service1 : IService1 { public void DoService() { } } and its being called as using (ServiceReference1.Service1Client client = new ServiceReference1.Service1Client()) { client.DoService(new DoServiceRequest()); client.Close(); } Please remember that service is published on basicHttpBindings. Problem Now when i performed above client code in a loop of 1000 i found big difference between "All Heap bytes" and "Private Bytes" performance counters (i used .net memory profiler). After investigation i found some of the objects are not properly disposed following are the list of those objects (1000 undisposed instance were found -- equals to the client calls) (namespace for all of them is System.ServiceModel.Channels) HttpOutput.ListenerResponseHttpOutput.ListenerResponseOutputStream BodyWriterMessage BufferedMessage HttpRequestContext.ListenerHttpContext.ListenerContextHttpInput.ListenerContextInputStream HttpRequestContext.ListenerHttpContext Questions Why do we have lot of undisposed objects and how to control them. Please Help

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  • linq-to-sql "an attempt has been made to attach or add an entity that is not new"?

    - by Curtis White
    I've been getting several errors: cannot add an entity with a key that is already in use An attempt has been made to attach or add an entity that is not new, perhaps having been loaded from another datacontext In case 1, this stems from trying to set the key for an entity versus the entity. In case 2, I'm not attaching an entity but I am doing this: MyParent.Child = EntityFromOtherDataContext; I've been using using the pattern of wrap everything with a using datacontext. In my case, I am using this in a web forms scenario, and obviously moving the datacontext object to a class wide member variables solves this. My questions are thus 2 fold: How can I get rid of these errors and not have to structure my program in an odd way or pass the datacontext around while keeping the local-wrap pattern? I assume I could make another hit to the database but that seems very inefficient. Would most people recommend that moving the datacontext to the class wide scope is desirable for web pages?

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  • EntityFramework .net 4 Update entity with a simple method

    - by Dennis Larsen
    I was looking at this SO question: http://stackoverflow.com/questions/1168215/ado-net-entity-framework-update-only-certian-properties-on-a-detached-entity. This was a big help for me. I know now that I need to attach an entity before making my changes to it. But how can do I do this: I have an MVC website, a Customer Update Page with fields: ID, Name, Address, etc. My MVC is parsing this into a Customer entity. How do I do the following: Update my entity and Save the changes to it. Catch the exception if my changes have been made since I loaded my entity.

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  • using crypto++ on iphone sdk with pycrypto on app engine

    - by Joey
    Hi, I'm trying to encrypt http requests using crypto++ and decrypt them with pycrypto on the app engine server end. Using Arc4 encryption, I can successfully encrypt and decrypt on the iphone end but when I try decrypting on app engine, the result is garbled. I thought maybe it has something to do with the encoding of the NSString but am not certain. It's not clear to me if I need to call encode() on the cipher on the server end before decrypting, although that does seem to resolve a failure to decrypt involving ascii values. I have a separate post that delves a bit into this. Can anyone offer some advice? http://stackoverflow.com/questions/2794942/crypto-pycrypto-with-google-app-engine

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  • How can I split a PHP form into two sections, before submission to a database?

    - by Daniel Smith
    Hi guys, I have set up a PHP form for a competition, for users to enter and all information to be stored in a database. I used the following NetTut+ tutorial to do so: http://tr.im/SwAd. I've got the form submitting to the database as required, but with so many additional questions being asked, I would like to split the form into two separate sections. Obviously the first page would say continue to the next step before the second step allowing for the form to be submitted to the database. The content that the user sees should be split, but should all be a part of the same form. Step 1 Step 2 before submission. Would anyone know of or recommend any methods to do this? I'm a beginner so please be nice. :) Cheers, Daniel

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  • ListView OnItemClickListener Not Responding?

    - by GuyNoir
    I've looked everywhere for a solution to this, but I can't figure out how to implement it. My OnItemClickListener was disabled somehow on my ListView rows, because I have an ImageButton in the row layout, which takes over the focus. There have been numerous questions I've found, but none of them have gotten me anywhere. I've checked this question, but I couldn't really make heads or tails of it. I just need a way to get the rows clickable so that I can detect when a row is pressed. Long press and focus work fine.

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  • Do you have any tips for comments to keep them in step with the code? [closed]

    - by Rob Wells
    Possible Duplicate: How do you like your comments? G'day, I've read both of Steve McConnell's excellent Code Complete books "Code Complete" and "Code Complete 2" and was wondering if people have any other suggestions for commenting code. My commenting mantra could be summed up by the basic idea of expressing "what the code below cannot say". While enjoying this interesting blog post by Jeff about commenting I was still left wondering "When coding, when do you feel a comment is required?" Edit: Oops. Seems to be a duplicate of this question http://stackoverflow.com/questions/121945/how-do-you-like-your-comments so sorry for the noise. Thanks to my, seemingly, SO shadow for pointing it out - wouldn't have thought I was that interesting. Now off to read the original post and see if it is relevant. Edit: I meant to emphasise the best appraoch to ensure that your comments will stay in step with the code. Maybe expressing an intent rather than the mechansim for instance.

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  • SSRS 2008 Snapshotting Security

    - by Holy Christ
    Hi, I'm writing a report that will show data based on the User!UserID built into the SSRS infrastructure. The data is sensitive to the user's department. In addition to these department users, there will be admins that should be able to run for all departments, or have a report parameter to run for a specific department. Ideally, I'd like to use SSRS snapshotting so that users can rerun a report they ran on a previous date. It's important that a user can only view the snapshots he created for his department. My questions are: 1.) Does SSRS snapshotting provide a mechanism to limit viewing snapshots by the user that created them? 2.) Will I need to write two reports, one for the admin and one for the department users? I think I do since there isn't a way to secure report parameters. Thanks!

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  • iPad book / cartoon contents plus Marvel like cartoons

    - by anthony
    Hi, I want to create and sell book / cartoons by individual episodes. What's the best way to to this? iBook from the apple store tends to sell by entire volume / book... I see an App from Marvel sells its contents by individual episodes, but I don't want to create / maintain shopping carts and stuff. (I am assuming iPad / iPhone users are downloading each cartoon episodes by their Marvel servers) I want to utilize Apple iBook / iTune store... Second questions: Is Marvel-like cartoons all jpg pictures showing frame by frame? Thanks in advance!!!

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  • Rearranging parts of the URL result from link_to in Rails

    - by mathee
    This is how I'm doing it now: link_to "Profile", :controller => "profiles", :action => "asked", :id => @profile # => <a href="/profiles/asked/1">Profile</a> Does it make more sense for the URL to be <a href="/profiles/1/asked">Profile</a>? Profile 1 asked some number of questions, so it makes more sense to me for the URL to look like: /:controller/:id/:action. If you agree, how do I accomplish this? If you don't agree, please let me know why. (I'm new to Ruby on Rails, so I'm still getting used to MVC conventions.) Any advice would be great!

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  • Is -1 a magic number? An anti-pattern? A code smell? Quotes and guidelines from authorities

    - by polygenelubricants
    I've seen -1 used in various APIs, most commonly when searching into a "collection" with zero-based indices, usually to indicate the "not found" index. This "works" because -1 is never a legal index to begin with. It seems that any negative number should work, but I think -1 is almost always used, as some sort of (unwritten?) convention. I would like to limit the scope to Java at least for now. My questions are: What are the official words from Sun regarding using -1 as a "special" return value like this? What quotes are there regarding this issue, from e.g. James Gosling, Josh Bloch, or even other authoritative figures outside of Java? What were some of the notable discussions regarding this issue in the past?

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  • Python - Things I shouldn't be doing?

    - by cornjuliox
    I've got a few questions about best practices in Python. Not too long ago I would do something like this with my code: ... junk_block = "".join(open("foo.txt","rb").read().split()) ... I don't do this anymore because I can see that it makes code harder to read, but would the code run slower if I split the statements up like so: f_obj = open("foo.txt", "rb") f_data = f_obj.read() f_data_list = f_data.split() junk_block = "".join(f_data_list) I also noticed that there's nothing keeping you from doing an 'import' within a function block, is there any reason why I should do that?

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  • ADO "Unspecified Error" instead of actual error when fetching server side cursor

    - by Dan
    This relates to my recent question: http://stackoverflow.com/questions/2835663/force-oracle-error-on-fetch I am now able to reproduce a scenario where using ADO with the Oracle OLEDB Provider, I can force an error such as ORA-01722: invalid number to occur on calling Recordset.MoveNext However, this is not the error that is returned to the application. Instead, the application sees Provider error '80004005' Unspecified error. How can I get the application to see the real error from the database? This is with Oracle 10g (client and server), if it matters. Sample code is roughly as follows: Dim con As New ADODB.Connection Dim cmd As New ADODB.Command Dim rs As ADODB.Recordset con.ConnectionString = "Provider=OraOLEDB.ORACLE;Data Source=xxx;User Id=yyy;Password=zzz" con.CursorLocation = adUseServer con.Open Set cmd.ActiveConnection = con cmd.CommandText = "select * from table(ret_err)" cmd.Prepared = True Set rs = cmd.Execute While Not rs.EOF rs.MoveNext Wend

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  • How JQuery data validation plugin works on the submit action

    - by kwokwai
    Hi all, I am learning how to use JQuery validation plugin, and came across some questions about the JQuery magic that works on the sumbit action. I got a simple HTML form which has got an input text field like this: <form class="cmxform" id="commentForm" method="get" action=""> <input id="cname" name="name" size="25" class="required" minlength="2" /> <input class="submit" type="submit" value="Submit"/> </form> The magic happened when I tried not to input any data into the field and pressed the submit button. I saw an error message in red pop up, and no matter how hard and how many times I pressed the submit button, nothing was submitted. It seemed that there was some scripts that disabled the submit action, but I just couldn't find which lines of codes in the JQuery Validatyion Plugin that did it.

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  • Combining javascripts into a single file

    - by toomanyairmiles
    Having read up recently on yahoo's web optimisation tips and using YSlow I've implemented a few of their ideas on one of my sites http://www.gwynfryncottages.com you can see the file here http://www.gwynfryncottages.com/js/gw-custom.js. While this technique seems to work perfectly on most occasions, and really does speed up the site, I do notice a significantly higher number of errors where the javascripts don't load or don't load completely while I'm working on the site so three questions:- is combining scripts this way a good idea at all in terms of reliablity? is there any way to measure the number of errors? is there any way to 'pre-load' the javascript or ensure that the number of loading errors is reduced?

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  • iPad/iPhone uiSearchbar transparent background

    - by Tom
    I know this questions was asked(and solved) before, but this wont work for me. as a matter of fact, I had it already solved, but this issue came back out of nowhere and struck me on the head. I am not able to set the background of my UISearchBar transparent. I was always using: searchBar.backgroundColor = [UIColor clearColor]; [[searchBar.subviews objectAtIndex:0] removeFromSuperview]; and it worked nicely... but suddenly it stopped. could be since I upgraded my xcode-version but I am not sure. I spent a couple of hours already investigating this.. Is somebody out there to do this? please point me in the right direction. thanks heaps!!! best regards T

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  • URL encoding for document.location.href

    - by Tyler
    Hello - I am building an iFrame and am using document.location.href - my exact code is: <script type="text/javascript"> document.write("<iframe src='http://www.facebook.com/plugins/like.php?href=" + document.location.href + "&layout=standard&show_faces=false&action=like&font=verdana&colorscheme=light' frameborder=0></iframe>"); </script> This is working great for all of my pages except one. I believe the issue with the one page is caused by a dash "-" being in the page name. My questions is - is there a way to encode my src differently so that the link works? The CORRECT URL I want it to pull is: []/products/Product%252dExample.html But what it IS pulling in is: []/products/Product-Example.html And this is causing the page to not work correctly. Thanks!

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  • CakePHP 1.3 Plugin Shortcut Route

    - by Cake Baker
    Hi, I searched a lot around the web but I couldn't find any specific sollution to this. In CakePHP 1.3, different from 1.2, if you had a controller inside a plugin, and both had the same name, you could access through "<plugin>/<action>", and it would call the 'default' controller. But in 1.3, according to this: http://cakeqs.org/eng/questions/view/setting_up_magic_routes_for_plugins_in_cakephp_1_3 It was removed, and only the 'index' action in the default plugin controller can be accessed this way. I thought about adding extra code in my routes.php file, and loop through all the plugins in my app, making such routes for every action in the controllers named after the plugin, but it doesn't seem like it's the right thing to do... any other suggestions to make this work in 1.3? or at least some very specific code documentation of this particular change? I've already read something in the 1.3.0-RC4 annoucement, but it was not clear enough.. thanks

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  • MicroChip Sample Code setting Current to a CMPDAC, DAC threshold which expect an voltage

    - by jason hong
    Sorry, the MicroChip Forum is very slow,I prefer to use overflow site to ask questions. dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04 device Sample Code // configure comparator2 CMPCON2bits.CMPON = 1; // enable comparator CMPCON2bits.INSEL = 1; // select CMP2B input pin (RB0) CMPCON2bits.RANGE = 1; // select high range, max DAC value = Avdd/2 //CMPDACx: COMPARATOR DAC CONTROL REGISTER //CMREF<9:0>: Comparator Reference Voltage Select bits CMPDAC2 = CURR_HWLIM; // DAC threshold #define CURR_HWLIM 1023 // 1023 // 10.15 * 101A MicroChip Sample code setting CURR_HWLIM which 1023A to COMPDAC2 which expects voltage I think that's mistake.

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  • Expression Tree : C#

    - by nettguy
    My understanding of expression tree is : Expression trees are in-memory representation of expression like arithmetic or boolean expression.The expressions are stored into the parsed tree.so we can easily transalate into any other language. Linq to SQL uses expression tree.Normally when our LINQ to SQL query compiler translates it to parsed expression trees.These are passed to Sql Server as T-SQL Statements.The Sql server executes the T-SQL query and sends down the result back.That is why when you execute LINQ to SQL you gets IQueryable<T> not IEnumetrable<T>.Because IQuerybale contains public IQueryable:IEnumerable { Type Element {get;} Expression Expression {get;} IQueryaleProvider Provider {get;} } Questions : Microsoft uses Expression trees to play with LINQ-to-Sql.What are the different ways can i use expression trees to boost my code. Apart from LINQ to SQL,Linq to amazon ,who used expression trees in their applications? Linq to Object return IEnumerable,Linq to SQL return IQueryable ,What does LINQ to XML return?

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  • OOP function and if statement

    - by Luke
    Not sure if I can ask two questions? If i run the following function in my database class function generateUserArray() { $u = array(); $result = $this->selectAllUsers(); while( $row=mysql_fetch_assoc($result)) { $u[] = $row['username']; } return $u; } Would i call it like this? $u[] = $datebase->generateUserArray(); My second question, will this work: else if($database->addLeagueInformation($subname, $subformat, $subgame, $subseason, $subwindow, $subadmin, $subchampion, $subtype) && $databases->addLeagueTable($name) && $_SESSION['players'] == $subplayers && $comp_name = "$format_$game_$name_$season" && $_SESSION['comp_name'] = $comp_name) Thankyou

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  • The Definition of Regular Languages

    - by AraK
    Good Day, I have tried, and burned my brain to understand the definition of Regular Languages in Discrete Mathematics and its Applications(Rosen) without reaching the goal of understanding why the definition is like that in this book. On page(789), I am rephrasing the definition: Type 3 grammars are defined as: w1 --> w2 Where w1 is a non-terminal, and w2 is of the form: w2 = aB w2 = a Where B is a non-terminal, and a is a terminal. A special case is when w1 is the starting symbol and w2 is lambda(the empty string): w1 = S S --> lambda Two questions I couldn't find an answer for. First, Why can't w2 be of the form Ba. Second, Why lambda is only allowed for the starting symbol only. The book states that, regular languages are equivalent to Finite State Automaton, and we can easily see that a we can build FSA for both cases. I took a look at other resources, and these restrictions don't exist in these resources. Thanks,

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