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• Database application using MVC paradigm

  - by Andrei K.

  In classic Delphi database application we have a form, a set of data-aware visual controls connected to TDataSets via TDataSources. If one wants to design database application using MVC model, where to place TDataSet components? Should they stay on form and therefore be a part of View? Or should they be encapsulated inside some Model object? If the latter how they could be bound to visual components?

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• Creating form object for variable kind of form.

  - by Bunny Rabbit

  i want to create a form for users to submit questions in django ..so far the models i have created are class Question(models.Model): statement=models.CharField(max_length=100) class Choice(models.Model): statement=models.CharField(max_length=100) value=models.IntegerField() question=models.ForeignKey(Question) Now i want to write a Form class for creating a above form but the problem is the number of choices are variable,a user can decide how many choices a question must have .How do i do that in django?

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• How should I cleanly track selected item in ASP.NET MVC?

  - by Aaron Anodide

  Is there a better way to track the selected item than how I do it in the code below which implements a row of navigation links. @Html.ActionLink( "PreApproval", "Summary", new { mode = "preapproval" }, new { @class = Model.Mode == "preapproval" ? "selected" : "notselected" }) | @Html.ActionLink( "ActionNeeded", "Summary", new { mode = (string)null }, new { @class = string.IsNullOrWhiteSpace(Model.Mode) ? "selected" : "notselected" }) | ... Should I try to encasulate the functionality of menu navigation or is this a standard approach?

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• Frequent and weird wifi disconnections

  - by Sidou

  How would you explain, troubleshoot (and solve) the following problem? Wifi ADSL modem router D-link 2640R installed in living room at about 1.8m height. Working fine, synchronising and getting/serving stable internet connection. First situation: -Laptop 01 in other end of the house, let's say in room01 southern to the living room, distant by about 15m. Getting stable signal of good to very good quality. No disconnection. -Laptop 02 in room02 opposite to room01 (5m West) which makes it almost at the same distance and direction from the router located 15m North. Getting stable signal of good to very good quality. No disconnection. Second situation: -Laptop 01 moved to room03 Northern to the living room (actually just 3m behind the wall where the router lies). Getting stable signal of excellent quality. No disconnection. -Laptop 02 still in room02 but now experiences frequent disconnections (actually almost impossible to get the Internet even though the signal level is still very good. Either no Internet with the wifi icon appearing connected to access point or no connection established at all which happens every 2 minutes and that means virtually no Internet at all as I can just get a timeframe of 1 minute or so to load any website or even get to the router's web based control panel. If Laptop 01 is completely shut down or its wifi adapters shut down or even still working but its wifi MAC address forbidden, then Laptop 02 has no problem at all. If Laptop 02 is moved to a nearer location to the router, in the living room for instance, then no connection problem occurs even if Laptop 01 is also connected. And also if we move back Laptop 01 to its original location (room 01), then no problem as well. I'm completely lost and don't know how to address this issue. I tried to change the Wifi channel and even tried the auto channel scan but that didn't solve it. I know that the problem is probably coming from Laptop 01 being in its new location or some sort of interference as the problem occurs only under the described condition but I have no idea how to solve it! I also scanned the neighborhood for wifi jam using InSSIDer, there are few other access points but they don't seem to affect the situation. Any ideas about the steps to follow or tools to use ?

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• cannot select items list from telerik mvc combox box

  - by user384080

  I'm trying to implement the comboboxfor as follow: @(Html.Telerik().ComboBoxFor(model => model.ProductId) .AutoFill(true) .HighlightFirstMatch(true) .DataBinding(binding => binding.Ajax().Select("GetProductByKeyword", "Product")) I managed to populate the list but does not allow me to select from the list. Also, I need to show the product name but at the same time I need to bind the productId as this is Id will stored in the database. any ideas?

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• Should I use my models in a library?

  - by Piers

  I've got my auth library in codeigniter which accesses the database to check to see if the email/password combination is correct. If I'm sticking to the MVC practice, should I move the function that interacts with the database to my model, or is it best practice to leave it where it is so I can use it in the future? Doesn't make much difference to me, other than the fact I'd have to re-write the library and create the function in my model, but if that's the way it should be then so be it.

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• How do I Validate Email or Phone requirement in MVC?

  - by user54197

  In MVC I am using [Required(ErrorMessage="")] to validate my text. How do I utilize a validation for an "Email or Phone Contact" textboxes in my model? I now have the validation in my controller, which I would like to have in the model. CONTROLLER... if (insuredInfo.InsuredHPhone == null && insuredInfo.InsuredWPhone == null) { ModelState.AddModelError("InsuredHPhone", "Contact Number Required"); isRequired = true; }

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• Django - Can you use property as the field in an aggregation function?

  - by orokusaki

  I know the short answer because I tried it. Is there any way to accomplish this though (even if only on account of a hack)? class Ticket(models.Model): account = modelfields.AccountField() uuid = models.CharField(max_length=36, unique=True) created = models.DateTimeField(auto_now_add=True) class Meta: ordering = ['created'] @property def repair_cost(self): # cost is a @property of LineItem(models.Model) return self.lineitem_set.aggregate(models.Sum('cost'))

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• Calling overridden method from within overriding method in OO PHP

  - by paddymcc

  Working in a symfony model, I want to override a function and call the overridden function from within the overriding one, along the lines of class MyClass extends BaseMyClass { function setMyProperty($p) { parent::setMyProperty($p); //do some other stuff } } This is resulting in a segmentation fault. I don't want to alter the parent class - it's been generated by symfony, and may feasibly be overwritten in the future if the model is rebuilt. This seems like something that should be straightforward, but I'm struggling to find the solution. Thanks for any advice

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• What is the best software to split and join avi files?

  - by blitzkriegz

  What is the best software to split and join avi files without losing quality (lossless) in Windows?

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• django sort by manytomany relationship

  - by Marconi

  I have the following model: class Service(models.Model): ratings = models.ManyToManyField(User) Now if I wanna get all the service with ratings sorted in descending order I did something: services_list = Service.objects.filter(ratings__gt=0).distinct() services_list = list(services_list) services_list.sort(key=lambda service: service.ratings.all().count(), reverse=True) As you can see its a three step process and I don't feel right about this. Anybody who knows a better way to do this?

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• Getting below error when trying to register a generic class with a implementation using .net 2.0

  - by Gaurav Saxena

  Code: StructureMapConfiguration.BuildInstancesOf().AsSingletons().TheDefaultIsConcreteType(); Error: StructureMap Exception Code: 190 Can not create a Generic PluginFamily for PluginFamily MIGExcel.Service.IPersistenceService1[[MIGExcel.Model.Contact, WizardModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]. Check that the basic type MIGExcel.Service.IPersistenceService1 is configured as a PluginFamily. These Generic types are configured within StructureMap as PluginFamily's: MIGExcel.Service.IPersistenceService`1[[MIGExcel.Model.Contact, WizardModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]],MIGExcel.Service;

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• Entity Framework 4 POCO with Dictionary

  - by Eric J.

  I have a POCO (Plain Old CLR Object) public Foo { public virtual int Id { get; set; } public virtual Dictionary<string, string> Stuff { get; set; } public virtual string More { get; set; } } Using the model first approach (i.e. I don't have a data model yet), how would I handle persisting Stuff (Dictionary)?

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• Formtastic + nested categories

  - by astropanic

  I have an article model and an category model. Category act as tree. What is the best approch to build a select list to allow the administrator to select an category from a select list to associate it later with an article ? semantic_form_for(@article) do |f| f.input :title, :as => :string f.input :content, :as => :text f.input :category, :collection => #what should go here ? end

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• jQuery MVC architecture

  - by Tomas Barbak

  Hi, what is the best way to create MVC architecture in jQuery? Should I use jQuery.extend()? jQuery.extend({ View: function(){} }); ...or jQuery Plugin? (function($) { $.fn.model = function() { return this; }; })(jQuery); ...or just objects in JavaScript? var model = {} var view = {} var controller = {} Thank you!

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• Netbeans code templates' modifiers

  - by hsz

  Hello ! I set a new PHP code template in Netbeans: /* @var $$${name}Table Model_${name}_Table */ $$${name}Table = Container::get('model')->get('${name}_Table'); and if I use as ${name} some value - shop - I have in output: /* @var $shopTable Model_shop_Table */ $shopTable = Container::get('model')->get('shop_Table'); Is it possible to add some modifier to the second and fourth ${name} so I will have it started with upper letter ? Shop_Table instead of shop_Table

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• USB to DVI adapter to get around two monitor limit of my graphics card?

  - by JavaJosh94

  My graphics card is an nVidia GTS 450 which will only run two monitors at a time, but I'd like to add a third one. Will I be able to do that using a USB to DVI adapter or would the limit still be there? Also I've been told the video quality is really bad with these adapters, so is the quality of the video output by these adapters okay for things like web browsing and working on office thing? And is it worth the $60 or would I be better off just buying a cheep second card?

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• StoreGeneratedPattern in Entitiy framework

  - by renjucool

  If the storage model has the StoreGeneratedPattern=identity attribute set, why should not the conceptual model reflect this in some way? Either in and attribute or in a readonly nature of a property? If i need to pass a value to the reference field.

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• Google App Engine getting verbose_name of a property from an instance

  - by Brian M. Hunt

  Given a model likeso: from google.appengine.ext import db class X(db.Model): p = db.StringProperty(verbose_name="Like p, but more modern.") How does one access verbose_name from x=X() (an instance of X)? One might expect that x.p.verbose_name would work, or alternatively x.properties()['p'].verbose_name, but neither seems to work. Thanks! EDIT: x.name.verbose_name = x.p.verbose_name

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• Trouble with ASP.NET MVC auto-scaffolder template

  - by DanM

  I'm trying to write an auto-scaffolder template for Index views. I'd like to be able to pass in a collection of models or view-models (e.g., IQueryable<MyViewModel>) and get back an HTML table that uses the DisplayName attribute for the headings (th elements) and Html.Display(propertyName) for the cells (td elements). Each row should correspond to one item in the collection. Here's what I have so far: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %> <% var items = (IQueryable<TestProj.ViewModels.TestViewModel>)Model; // How do I make this generic? var properties = items.First().GetMetadata().Properties .Where(pm => pm.ShowForDisplay && !ViewData.TemplateInfo.Visited(pm)); %> <table> <tr> <% foreach(var property in properties) { %> <th> <%= property.DisplayName %> </th> <% } %> </tr> <% foreach(var item in items) { HtmlHelper itemHtml = ????; // What should I put in place of "????"? %> <tr> <% foreach(var property in properties) { %> <td> <%= itemHtml.Display(property.DisplayName) %> </td> <% } %> </tr> <% } %> </table> Two problems with this: I'd like it to be generic. So, I'd like to replace var items = (IQueryable<TestProj.ViewModels.TestViewModel>)Model; with var items = (IQueryable<T>)Model; or something to that effect. A property Html is automatically created for me when the view is created, but this HtmlHelper applies to the whole collection. I need to somehow create an itemHtml object that applies just to the current item in the foreach loop. I'm not sure how to do this, however, because the constructors for HtmlHelper don't take a Model object. How do I solve these two problems?

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• Planning a requirements gathering session using Agile

  - by Dave Smith

  We are planning on introducing Agile into our development process (a shift from the waterfall we've been using so far). We are leaning towards a hybrid model in whcih the requirements gathering session is comprised of a business analyst, subject matter experts, technical person and a user interface person. The plan is to create user stories that the development team can use in their agile process with 1 month sprints. Has anyone had experience with a hybrid model? How has it worked for you so far?

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• Which is more flexible in regards to database changes, EF 4 or Linq to SQL

  - by JBeckton

  Reading about both Linq to SQL and Entity Framework I have developed the impression that EF is more suitable for apps that get data from multiple data sources. But as I am reading about MVC2 models I see an example where EF is more loosely coupled with your data model. If I have to add or remove some columns from a table then what is involved in updating my model or DAL with each of these implementations?

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• how can i request a variable in my home.ctp of my cakePHP application?

  - by Simon

  I created a page using the MVC structure called 'sections' ( view is located in the app/views/sections folder, model in the model folder and the controller in the controller folder) when i request the variable $test, it works fine without any errors.. When i want to request this variable in my home.ctp, it provides me with an error, saying that the variable is undefined.. Is there any way in cakePHP to request this variable on any page you want it to? Thnx in advance!

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• Set Final Cut Express Sequence Options 4:3 to 960p (30fps)

  - by Maccaius

  Hi I have an project in FCE which was recorded in MPEG-4 video in 1280 x 960 (1,4MB/s) and whenever I import those mov files to FCE thez show just fine. but when i add the clips to the timeline (sequence) the quality is cropped - instead of HD i can onlz export the timeline with quicktime conversion and a resolution of 720 x 480. can anybody help me out and tell me how i can export the timeline in full HD quality (as the raw material itself is)? tried the quick setup and exporting as divx and AIC which doesnt reallz work. the actual video size is HD, but qualitz of the video is like SD...

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• Batch converting video from avc1 to xvid

  - by Tommy Brunn

  I need a way to batch convert 720p video files from avc1 to xvid in Ubuntu 10.04. I'm not terribly concerned about file size, but I do wish to retain the picture quality as much as possible. I believe the audio is encoded as aac, which is fine for my purposes. What would be the best and easiest way to do this? I've tried using Handbrake. During my first attempt, I had it using ffmpeg to convert to MPEG-4, but that just gave me a super-low quality video at twice the file size. Trying h.264 now, so we'll see how that works out. But just in case it doesn't pan out so well, what other ways do you recommend? I was thinking I'd write a bash script to reencode the files one by one, but the problem is that I have very little knowledge about codecs and containers and whatnot - so I wouldn't know what parameters I would pass ffmpeg/mencoder.

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