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  • LINQ to SQL or Entities, at this point?

    - by orlon
    I'm a bit late to the game and have decided to spend some spare time learning LINQ. As an exercise, I'm going to rewrite a WebForms app in MVC 2 (which is also new to me). I managed to find a few topics regarding LINQ here (http://stackoverflow.com/questions/16322/learning-about-linq, http://stackoverflow.com/questions/8050/beginners-guide-to-linq, http://stackoverflow.com/questions/252683/is-linq-to-sql-doa), which brought the concern of Entities vs SQL to my attention. The threads are all over a year old however, and I can't seem to find any definitive information on which ORM is preferable. Is Entities more or less LINQ to SQL 2.0 at this point? Is it still more difficult to use? Is there any reason to use LINQ to SQL, or should I just jump into Entities? The applications I write at my present employer have a lengthy lifecycle (~10 years), so I'm trying to pick the best technology available.

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  • Best way to deal with multiple layouts in symfony

    - by Pierre
    Hey folks. I'm looking for the best way to do something simple in symfony. Basically, I have a module in which all the pages will contain the same header and footer. That module also shares the same general layout as the other modules. I'm just wondering, should I create one file and have my content pages called up as partials or should all files have their own content and somehow call the two other templates. I made a quick example of my setup: http://grab.by/3Riy Hopefully, it'll help understand what I'm trying to do. Thanks!

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  • Need an alternative to two left joins.

    - by Scarface
    Hey guys quick question, I always use left join, but when I left join twice I always get funny results, usually duplicates. I am currently working on a query that Left Joins twice to retrieve the necessary information needed but I was wondering if it were possible to build another select statement in so then I do not need two left joins or two queries or if there were a better way. For example, if I could select the topic.creator in table.topic first AS something, then I could select that variable in users and left join table.scrusersonline. Thanks in advance for any advice. SELECT * FROM scrusersonline LEFT JOIN users ON users.id = scrusersonline.id LEFT JOIN topic ON users.username = topic.creator WHERE scrusersonline.topic_id = '$topic_id' The whole point of this query is to check if the topic.creator is online by retrieving his name from table.topic and matching his id in table.users, then checking if he is in table.scrusersonline. It produces duplicate entries unfortunately and is thus inaccurate in my mind.

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  • What are the pre-requisites to become a Business Developer

    - by T.Raghavendra
    I am not sure if this is the right portal, But i believe many entrepreneurs are available here. I wanted to know how can someone get in to business development. what are the factors that are necessary if the person has no MBA degree. is it possible to get into such profession. I mean is it just the fact you must know how to write RFP, or estimates. Understanding client requirements and getting them the best available solution. Please guide me as I am interested, with 5+ years of industry experience is it possible to move to different domain.

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  • Efficiently generate a 16-character, alphanumeric string

    - by ensnare
    I'm looking for a very quick way to generate an alphanumeric unique id for a primary key in a table. Would something like this work? def genKey(): hash = hashlib.md5(RANDOM_NUMBER).digest().encode("base64") alnum_hash = re.sub(r'[^a-zA-Z0-9]', "", hash) return alnum_hash[:16] What would be a good way to generate random numbers? If I base it on microtime, I have to account for the possibility of several calls of genKey() at the same time from different instances. Or is there a better way to do all this? Thanks.

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  • Jquery SimpleModal flickers in Firefox

    - by Obay
    I'm using SimpleModal plugin for Jquery and I have a weird problem with Firefox ( other browsers work fine: Chrome, Safari, Opera, IE). What happens is when I click on the button that launches the modal dialog, before showing the modal (and the fadeIn of the overlay), there is a quick "flicker", less than half a second. (It's longer on my slower PC). Weird thing is, it didn't happen in Firefox 3.5.2, but when I upgraded to 3.6.3, I got the flicker. Any ideas? Here is my code: $("#popup").modal({ onOpen: function (dialog) { dialog.data.show(); dialog.container.show(); dialog.overlay.fadeIn('fast'); }, onClose: function (dialog) { dialog.data.hide(); dialog.container.hide(); dialog.overlay.fadeOut('fast', function() { $.modal.close(); }); } });

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  • What's the straightforward way to implement one to many editing in list_editable in django admin?

    - by Nate Pinchot
    Given the following models: class Store(models.Model): name = models.CharField(max_length=150) class ItemGroup(models.Model): group = models.CharField(max_length=100) code = models.CharField(max_length=20) class ItemType(models.Model): store = models.ForeignKey(Store, on_delete=models.CASCADE, related_name="item_types") item_group = models.ForeignKey(ItemGroup) type = models.CharField(max_length=100) Inline's handle adding multiple item_types to a Store nicely when viewing a single Store. The content admin team would like to be able to edit stores and their types in bulk. Is there a simple way to implement Store.item_types in list_editable which also allows adding new records, similar to horizontal_filter? If not, is there a straightforward guide that shows how to implement a custom list_editable template? I've been Googling but haven't been able to come up with anything. Also, if there is a simpler or better way to set up these models that would make this easier to implement, feel free to comment.

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  • MongoDB query to return only embedded document

    - by Matt
    assume that i have a BlogPost model with zero-to-many embedded Comment documents. can i query for and have MongoDB return only Comment objects matching my query spec? eg, db.blog_posts.find({"comment.submitter": "some_name"}) returns only a list of comments. edit: an example: import pymongo connection = pymongo.Connection() db = connection['dvds'] db['dvds'].insert({'title': "The Hitchhikers Guide to the Galaxy", 'episodes': [{'title': "Episode 1", 'desc': "..."}, {'title': "Episode 2", 'desc': "..."}, {'title': "Episode 3", 'desc': "..."}, {'title': "Episode 4", 'desc': "..."}, {'title': "Episode 5", 'desc': "..."}, {'title': "Episode 6", 'desc': "..."}]}) episode = db['dvds'].find_one({'episodes.title': "Episode 1"}, fields=['episodes']) in this example, episode is: {u'_id': ObjectId('...'), u'episodes': [{u'desc': u'...', u'title': u'Episode 1'}, {u'desc': u'...', u'title': u'Episode 2'}, {u'desc': u'...', u'title': u'Episode 3'}, {u'desc': u'...', u'title': u'Episode 4'}, {u'desc': u'...', u'title': u'Episode 5'}, {u'desc': u'...', u'title': u'Episode 6'}]} but i just want: {u'desc': u'...', u'title': u'Episode 1'}

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  • Bootstrap Modal & rails remote

    - by Kevin Brown
    Using this bootstrap modal extension and animate.css for fun, how can I take a make an easy ajax modal using :remote => true to fill in the modal box? Also, how would I use the bootstrap modal default "submit/cancel" buttons to interact with a form that's loaded? I'm looking for a more dynamic solution instead of hard-html-ing every modal into the page or using a bunch of jquery ajax calls for each dialog. I've done a few quick searches, but they've turned up nil for this particular solution.

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  • How to use Device Emulator to debug my WinCE application

    - by ame
    I am working with an MFC application built on a WinCE platform in Visual Studio. I need to debug this application and I cannot do it using KITL and the hardware. I tried to use Device Emulator for this: I started a new Platform Builder Project (PDA Device, enterprise webpad). I built it after ensureing that KITL was enabled and so was kernel debugger. Once built, i set the target connectivity options as ce device, download and transport set to Device Emulator and Debugger is KdStub. Once I hit Attach to Device, the doload to target window pops up and then the RelDir window also does. However nothing happens after this and in the output window it says: PB Debugger The Kernel Debugger is waiting to connect with target. Please guide me on what I need to do to debug my application. Thankyou!

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  • Looking to eventually build a smartphone app...

    - by Brian L
    Hi all- I'm a young, inexperienced programmer (I've had a year of Java, some MATLAB, and HTML/CSS in school) but I've decided that to get better, I'm making it my goal to produce a simple smartphone app of some kind this year- probably either webOS or Android since I'm on a PC and can't afford a Mac just to write an iPhone app. So my question is, where do I start? I've read the threads about How to Write for Android and such, but I'm not sure I have enough Java experience to just jump right in. And then there's webOS which is based on JavaScript, correct? I guess I'd just like some input from more experienced folks. I have some Barnes and Noble book credit I'm looking to get rid of too, so if there's a guide you think would be useful, feel free to request. tl;dr: Programming newbie ultimately wants to build a simple smartphone app. Where do I start?

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  • Buttons, hover, text and transitions on pure css3

    - by Mascote Ricardo
    I bought a responsive html5 template to create a website for my band. But I miss a page of tour dates, and would create a unique content, simple and quick to load on any device. I have the idea ready, something like buttons (months) to change on hover and when clicked, shows the dates and cities, all with transitions and fadein / fadeout. (pure css3) to better explain and make me understand, follows an image I created in photoshop. http://img51.imageshack.us/img51/1542/l17u.jpg can someone give me a help, idea or tag to search the web, I thank you too!

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  • How to set up Django app to make cookies work on subdomain

    - by Dzida
    Hi, I have deployed my application on subdomain.domain.com (it works only on that one subdomain). Everything works fine except the fact that from time to time users cannot log in to application (the message "Looks like your browser isn't configured to accept cookies. Please enable cookies, reload this page, and try again" is shown when trying to log into admin panel). I've noticed that restarting the web server eliminates this problem for some time. Does anyone have experience with setting up django project on subdomain and can guide me how to configure my application to make it work correctly without need to ocasionally make reset?

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  • Android: Send arbitrary objects within Activities?

    - by Sebastian
    I have read some question here but I didn't find a solution. I have read about Parcelable, Intents, and sharing specific data within Activities from the android dev docs (both dev guide and reference). Here's the scenario: I have one ListActivity that fills in an object parsing an xml file, it shows a list of values, and when clicked I want to return the object that represents the item clicked to the activity that has called it, for then, call another activity with this object. I read on how to implement Parcelable but seems not being the way. Implementing Parcelable receives a Parcel for the constructor and then reads the values from it (or at least that was what I understood). This makes no sense for me and I can't see how to implement basing on that issue. I build the object parsing the xml file, not having a Parcel. I appreciate some clarifications on this, regards.

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  • How to Generate Edifact message from a xml ?

    - by Clem
    Hello, I'm currently dealing with customs messages Beans in Java. After filling in the Beans with different values, I want to produce an EDIFACT CUSDEC message corresponding to each message. For each attribute of a message Bean, I have the information to put the attribute in the right place in EDIFACT CUSEDC format. Thus, I am looking for a free tool (a Java API) which could ideally convert my full-filled Bean into an EDIFACT CUSDEC message. I found a commercial solution (not free) there : http://www.datadirect.com/products/edifact-grid/index.ssp And a quick tutorial here : http://biemond.blogspot.com/2008/09/generate-edifact-message-from-xml.html But ... unfortunately it is not free.. Thanks in advance for your help!

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  • Can't write text into textbox in ASP.NET web app

    - by dotnetdev
    Hi, I have an ASP.NET web application. In the codebehind for the .ascx page (which I embed as below), I attempt to write a string to a textbox in a method like this: Code for embedding control: Control ctrl = Page.LoadControl("/RackRecable.ascx"); PlaceHolder1.Controls.Add(ctrl); Method to make string for inserting into textbox: string AppendDetails() { StringBuilder sb = new StringBuilder(); sb.Append("msg" + " " + textbox1.Text etc etc ); return sb.ToString(); } Called as (in codebehind event handler for button click): this.TextBox4.Text = AppendDetails(); I call it by using ATextBox.Text = AppendDetails (in the button click event handler). The textbox TextBox4 is in the designer file so I am confused why the text does not get written into this textbox (it is readonly and enabled). When stepping through, the textbox4 control will successfully show the text I want it to display in quick watch but not in the actual page, it won't. Any ideas? Thanks

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  • Jquery background overlay/alert without .onclick event - php responder?

    - by Philip
    Hi guys, I have no experience with jquery or javascript for that matter. I am trying to implement this technique to respond to users for errors or messages in general. lights-out-dimmingcovering-background-content-with-jquery This method uses the onclick event and that's not what im after, I have tried to replace .onclick with .load but that doesn't seem to work. I'm after a quick fix as I really don't have the time to learn jquery or its event handlers. The goal is to catch any errors or message's and once these are called the alert box is called without any further actions such as .onclick. How my code would look: {PHP} $forms = new forms(); if(count($forms->showErrors) > 0 // or == true) { foreach($forms->showErrors as $error) { print('<p class="alert">'.htmlspecialchars($error, ENT_QUOTES).'</p>'); } }

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  • How do I use compiler intrinsic __fmul_?

    - by Eric Thoma
    I am writing a massively parallel GPU application. I have been optimizing it by hand. I received a 20% performance increase with _fdividef(x, y), and according to The Cuda C Programming Guide (section C.2.1), using similar functions for multiplication and adding is also beneficial. The function is stated as this: "_fmulrn,rz,ru,rd". __fdividef(x,y) was not stated with the arguments in brackets. I was wondering, what are those brackets? If I run the simple code: int t = __fmul_(5,4); I a compiler error about how _fmul is undefined. I have the CUDA runtime included, so I don't think it is a setup thing; rather it is something to do with those square brackets. How do I correctly use this function? Thank you.

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  • Extracting an interface from .NEt System classes

    - by Thomas
    When using Visual Studio it is easy to extract an interface from a class that I have written myself. I right click on the class and select 'Refactor' then select 'Extract Interface'. Let's assume for a second that I wanted to create a ConfigurationManager wrapper and write some tests around it. A quick way to do that would be to extract an interface from ConfigurationManager by right clicking it, then 'Go To Definition' and then from inside the class select 'Refactor' then select 'Extract Interface'. Then I would simply create my wrapper class, inherit from my newly created interface, and then implement it and I have a great starting point for my wrapper class. However, extracting an interface from any .NET system classes is not possible, probably because it's just meta data about the classes and not the classes themselves (or I am doing it wrong). Is there an easy way to do what I am trying to accomplish? I want to ensure I am not wasting time typing what I don't need to be typing. Thanks

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  • JSF and Ajax4JSF on WebSphere 6.1 --> Problem with Form Submission

    - by Shamik
    Has anyone setup JSF1.1 with Ajax4JSF on websphere 6.1 ? I followed the instructions as mentioned in the developer guide . The problem that I am facing is that once I use a4j:support on any of my h:inputText item, the form values are not getting set in the backing bean on the submission of the form. I do have <h:messages> tag present just above the form so that all the problems should be reported there but I do not see any error message once I submit the form. But I do see that the values are not getting set. I need to find the solution as early as possible otherwise I probably have to throw the ajax4jsf framework and write javascripts instead :(

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  • OpenAL device, buffer and context relationship

    - by Markus
    I'm trying to create an object oriented model to wrap OpenAL and have a little problem understanding the devices, buffers and contexts. From what I can see in the Programmer's Guide, there are multiple devices, each of which can have multiple contexts as well as multiple buffers. Each context has a listener, and the alListener*() functions all operate on the listener of the active context. (Meaning that I have to make another context active first if I wanted to change it's listener, if I got that right.) So far, so good. What irritates me though is that I need to pass a device to the alcCreateContext() function, but none to alGenBuffers(). How does this work then? When I open multiple devices, on which device are the buffers created? Are the buffers shared between all devices? What happens to the buffers if I close all open devices? (Or is there something I missed?)

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  • Using Regex to remove Carriage Returns in a CSV file in Notepad++

    - by Barry
    I have a CSV file I need to clean up. This is a one-time thing so I'd like to do it in Notepad++ if possible. The CSV file has two fields, one of which is wrapped in quotes. I'd like to remove any Carriage Returns from within the quoted field. I was trying to use this pattern but can't get it quite right... (.*)\"(.*)\n(.*)\"(.*) Also correct me if I am wrong, but I presume the "replace with" value would be something along the lines of: \1\2\3\4 Thanks in advance. I'm also open to alternate solutions such as a quick and dirty PERL script.

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  • Using sys/socket.h functions on windows

    - by BSchlinker
    Hello, I'm attempting to utilize the socket.h functions within Windows. Essentially, I'm currently looking at the sample code at http://beej.us/guide/bgnet/output/html/multipage/clientserver.html#datagram. I understand that socket.h is a Unix function -- is there anyway I can easily emulate that environment while compiling this sample code? Does a different IDE / compiler change anything? Otherwise, I imagine that I need to utilize a virtualized Linux environment, which may be best anyways as the code will most likely be running in a UNIX environment. Thanks.

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  • How to use locks/synchronization here

    - by MasterGberry
    I have this code block here and i need to make sure the rankedPlayersWaitingForMatch is synchronized between threads properly. I was going to use synchronize but that i don't think will work here because of the variable being used in the if statement. I read online about final Lock lock = new ReentrantLock(); but I am a bit confused on how to use it in this case properly with the try/finally block. Can I get a quick example? Thanks // start synchronization if (rankedPlayersWaitingForMatch.get(rankedType).size() >= 2) { Player player1 = rankedPlayersWaitingForMatch.get(rankedType).remove(); Player player2 = rankedPlayersWaitingForMatch.get(rankedType).remove(); // end synchronization // ... I don't want this all to be synchronized, just after the first 2 remove() } else { // end synchronization // ... }

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  • NoSQL or Ehcache caching ?

    - by paddydub
    I'm building a Route Planner Webapp using Spring/Hibernate/Tomcat and a mysql database, I have a database containing read only data, such as Bus Stop Coordinates, Bus times which is never updated. I'm trying to make the app run faster, each time the application is run it will preform approx 1000 reads to the database to calculate a route. I have setup a Ehcache which greatly improves the read from database times. I'm now setting terracotta + Ehcache distributed caching to share the cache with multiple Tomcat JVMs. This seems a bit complicated. I've tried memcached but it was not performing as fast as ehcache. I'm wondering if a MongoDb or Redis would be better suited. I have no experience with nosql but I would appreciate if anyone has any ideas. What i need is quick access to the read only database.

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