Search Results

Search found 44734 results on 1790 pages for 'model based design'.

Page 261/1790 | < Previous Page | 257 258 259 260 261 262 263 264 265 266 267 268  | Next Page >

• How To Implement The Query Side Of CQS in DDD?

  - by Laz

  I have implemented the command side of DDD using the domain model and repositories, but how do I implement the query side? Do I create an entirely new domain model for the UI, and where is this kept in the project structure...in the domain layer, the UI layer, etc? Also, what do I use as my querying mechanism, do I create new repositories specifically for the UI domain objects, something other than repositories, or something else?

  Read the article

• Non-Relational DBMS Design Resources

  - by Matt Luongo

  Hey guys, As a personal project, I'm looking to build a rudimentary DBMS. I've read the relevant sections in Elmasri & Navathe (5ed), but could use a more focused text. The rub is that I want to play with novel non-relational data models. While a lot of E&N was great- indexing implementation details in particular- the more advanced DBMS implementation was only targeted to a relational model. I could also use something a bit more practical and detail-oriented, with real-world recommendations. I'd like to defer staring at DBMS source for a while if I can. Any ideas?

  Read the article

• What is the purpose of return'ing $this when setting vars in the model

  - by TaMeR

  I am a self thought hobby programmer and therefore don't have the fundamentals always down the way you professionals do. So please excuse me if this is basic. What is the purpose or benefit of return'ing $this when setting vars in the model. I have seen this done in other places too but cant figure this out. Sample code: public function setAlias($Alias){ $this->_Alias = (string) $Alias; return $this; } public function getAlias(){ return $this->_Alias; }

  Read the article

• How to load the model ????

  - by rajesh

  How can i load model i have tried several times but do not get the ans my code is <?php class NotesController extends AppController { var $name='Notes'; var $helpers = array('Html','Form','Ajax','Javascript'); var $uses = array('note'); var $components = array('ModelLoader'); function index(){ $this->ModelLoader->setController($this); $result = $this->params['url']['obj']; //print_r($result); $ee=$this->ModelLoader->load('note'); $pass = $this->note->search($result);

  Read the article

• design time usercontrols - I can't see anything!

  - by taglius

  newbie question, please forgive... I'm developing a Wpf UserControl that will eventually be bound to a business object. The usercontrol is little more than a series of laid out TextBlocks, and perhaps (later) an image or two. As I'm laying out the usercontrol, I can put dummy text into all the TextBlocks so I can see what the usercontrol will look like, but as soon as I change the text property to contain the Binding information: <TextBlock Margin="0,12.8,42,0" Name="lblLastName" FontSize="8" Height="19" VerticalAlignment="Top" Text="{Binding Mode=OneWay, Path=LastName}"/> Then I can no longer see the textbox, or any "placeholder" text. This makes it very difficult to adjust the location and sizes of all the controls on the UserControl. In WinFormas programming, you could set binding information independently of the Text property, so you could at least see the Placeholder text during design time development. It's going to be pretty hard to visually arrange a bunch of invisible TextBlocks! What's the standard solution for this?

  Read the article

• ASP.NET MVC authorization & permission to use model classes

  - by Tomek

  Hi, This is my first post here, so hello :) Okey, let's get to the point... I am writing my first app in ASP.NET MVC Framework and i have a problem with checking privileges to use instances of model classes (read, edit). Sample code looks like this: // Controller action [CustomAuthorize(Roles="Editor, Admin")] public ActionResult Stats(int id) { User user = userRepository.GetUser(id); if (user == null || !user.Activated || user.Removed) return View("NotFound"); else if (!user.IsCurrentSessionUserOwned) return View("NotAuthorized"); return View(user); } So far authorize attribute protects only controller actions, so my question is: how to make (custom) authorize attribute to check not only user role, usernames but also did i.e. resources instantiated in action methods (above: User class, but there are other ORM objects like News, Photos etc.) All of these object to check have their unique ID's, so user have own ID, News have their ID and UserID field referecned to Users table (i mean these objects are LINQ2SQL classes). How should i resolve that problem?

  Read the article

• How ASP.NET MVC passes model to the view without explicitly passing it

  - by Vlad Bezden

  Here is one of the examples that I've seen on how to do validation on Controller: [HttpPost] public ViewResult Create(MyModel response) { if (ModelState.IsValid) { return View("Thanks"); } else { return View(); } } If there are validation errors, than return View() method is called without any parameters. Obviesly you have @Html.ValidationSummary() in your View and Model has all required properties attributes. The data that was entered into the form was preserved and displayed again when the view was rendered with the validation summary. My question is how data preserved? Since it was not passed to the View like return View(response); Thanks a lot. Sincerely, Vlad

  Read the article

• Entity-attribute-value model using codeigniter / php

  - by John Stewart

  SO I am trying to create a way to structure my database to be able customize forms. I looked into EAV pattern and here is my db structure: Table form - form_id - form_name - form_added_on - form_modified_at Table: form_fields - field_id - form_id - field_type (TEXT, RADIO etc..) - field_default_value - field_required Table: form_data - data_id - field_id - form_id - field_value so now I can store any custom form into the database and if I want to get the values for an individual form I can simply join it by "form_id" .. the problem: I want to be able to search through all the forms for a specific field value. How can I do that with EAV model? Also, I thought about just storing the custom data as a serialized (JSON) object but then I am not sure how can I query that data. Please note that I am using Codeigniter with MYSQL. So if conversation can use Codeigniter libraries if needed.

  Read the article

• Reference for good Android UI design patterns.

  - by sat

  Hi, I would like to get some links for getting started with design patterns.My requirement is , (at Initial stage) How to go about developing a particular pattern , say customized ListView which can be shared across applications . e.g. Applications will call something like drawCustomizedListView(params...) and my code will draw the listview according to the parameters supplied. This is particularly useful when across the applications I have to draw customized views. My intention is, I should not repeat the same code everywhere for doing similar task. Any references for the above requirement ?

  Read the article

• design a large scale network for an organization

  - by Essam

  hello.i am so new to networking i want to design a large scale network for an organization with HQ and two branches. i want to use class A address for that.my questions are: if i am using the network address 30.0.0.0 for the whole organization how can it be different from another organization company or whatever which is using the same address in another country? now i have the three locations for this organization,so i need 5 subnets [one for the HQ,two for branch A and branch B , one for connecting A to HQ and one for connecting branch B with HQ since i will use central DHCP server at the HQ,is that(number of subnetting) right? is it advisable to use class A or class B for this organization it term of address that will be wasted (lets say it is a university with two branches in two different states)?! that is all your help is highly appropriated.

  Read the article

• ASP.NET Custom Control

  - by Alyn

  I am building an ASP.NET Web User Control which has a panel within it. How do I make the Panel within the user control resizable (i.e. with handles) at design time in Visual Studio. I need to create a design class or something?? Thanks.

  Read the article

• Generate SQL Server Express database from Entity Framework 4 model

  - by Cranialsurge

  I am able to auto-generate a SQL Server CE 4.0 *.sdf file using code-first generation as explained by Scott Guthrie here. The connection string for the same is as follows: <add name="NerdDinners" providerName="System.Data.SqlServerCe.4.0" connectionString="data source=|DataDirectory|NerdDinner.sdf"/> However if I try to generate an mdf instead using the following connection string, it fails to do so with the following error - "The provider did not return a ProviderManifestToken string.". <add name="NerdDinners" providerName="System.Data.SqlClient" connectionString="data source=|DataDirectory|NerdDinner.mdf"/> Even directly hooking into a SQLEXPRESS instance using the following connection string fails <add name="NerdDinners" providerName="System.Data.SqlClient" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=NerdDinner;Integrated Security=True"/> Does EF 4 only support SQL CE 4.0 for database creation from a model for now or am I doing something wrong here?

  Read the article

• CodeIgniter based e-shop, shipping and gift address design problem

  - by alexander

  While building an ecommerce platform I have run into design problems. I'm working with the built-in CodeIgniter's cart class. It stores all the cart information in session. Let say that cart has already been filled with products and user clicks checkout. When should I store order in database? Just after that click or after several steps of gathering information and stoing it in session? How to deal with additional features like different shipping methods? Should I add it to the basket first and get additional (gift address) to session? I dont want to store it in database because of the relation between gift address and order is needed and since I dont know what's the ID of the order. I'm puzzled :) Additionally I think its crucial to keep cart aware of shipping methods and additional bought services (by selecting gift address there is an extra fee) because the cart content is just like an reciept? In brief, what is the best practice to process checkout?

  Read the article

• Form Design ScriptControlClass

  - by raghumithra

  I am working on a form designer. We have two parts: first is designing form by placing controls, and second is writing VB code in rich text editor. How do i integrate design and code (events of the controls) in runtime? I am using ScriptControlClass Form4 f4 = new Form4(); f4.Name = "dgfdfg"; f4.Text = "Raghudfgmithra"; Button btn = new Button(); btn.Text = "HI"; btn.Left = 25; btn.Top = 50; btn.Name = "btnSubmit"; f4.Controls.Add(btn); script.AddObject("form", f4, true); script.AddCode("???????????); script.ExecuteStatement(????????????);

  Read the article

• ASP MVC 2 : Custom display of a required form element based on ModelMetaData

  - by Nigel

  I have an MVC 2 application that utilises forms. The required fields within the form are set using attributes that update the model metadata. The form fields are created using the MVC HtmlHelper method : Html.EditorFor. This works fine so far as validation is concerned, but it seems that by default the required fields are not displayed to the user (for example by appending a * to the control). If I wanted to provide some custom means of displaying this fact to the user (lets immagine I want to change the background colour of the edit control for example), where is the best place to do it. Would I need to create a custom html helper to replace EditorFor? I tried but it seemed difficult to gain access to the metadata for the correct property. I already have a custom ModelMetaDataProvider so there is no problem adding it there if that is the correct place.

  Read the article

• Django | Save model's choice list values

  - by MMRUser

  I have a form that has a choice list: <select name="cellSerpro" id="idcellserpro" class="field text" > <option value="">---</option> <option value="option1">Verizon</option> <option value="option2">AT&T</option> <option value="option3">T-Mobile</option> <option value="option4">Sprint</option> </select> So how do I get the selected value of it from the Django's model class in order to save it in the database, I have search through the net but couldn't find any way of doing it.. Thanks..

  Read the article

• using R to estimate finite mixture model with underlying Markov process

  - by stevejb

  Hello, My apologies if this is more of a statistics question than an R question. I am trying to estimate the following model in R. y_t = mu0 (1 - S_t) + mu1 S_t + e_t e_t ~ N(0, sigma_t^2) sigma_t^2 = sigma_0^2 (1 - S_t) + sigma_1^2 S_t where mu_t = mu0 if S_t = 0, mu_t = mu1 if S_t = 1, and S_t is a Markov process, either 0 or 1, with transition probabilities P(S_t = 1 | S_t-1 = 1 ) = p and P(S_t = 0 | S_t-1 = 0 ) = q. Would 'flexmix' be a good library to use for this? I am new to this kind of statistics so any pointer to the right library would be appreciated. Thanks,

  Read the article

• Problem with migrating a model in ruby

  - by Shreyas Satish

  I run script/generate model query edit query.rb in models.. class Query < ActiveRecord::Base #I even tried Migrations instead of Base def sef.up create table :queries do|t| t.string :name end end def self.down drop_table :queries end end ,run rake db:migrate. and what I see in db is this: mysql> desc queries; +------------+----------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------+----------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | created_at | datetime | YES | | NULL | | | updated_at | datetime | YES | | NULL | | +------------+----------+------+-----+---------+----------------+ Where is the "name" field? HELP ! Cheers !

  Read the article

• Rails Controller

  - by Steve

  Hi...In Rails, is it ok to define logic in a controller with a model. For example, take there is an User Model, which is good design. 1)Leaving the UserModel with the CRUD models and moving all the other User Specific actions to a separate controller or 2)Add the user specific actions to the same UserModels Thanks :)

  Read the article

• A controller problem using a base CRUD model

  - by rkj

  In CodeIgniter I'm using a base CRUD My_model, but I have this small problem in my browse-controller.. My $data['posts'] gets all posts from the table called "posts". Though the author in that table is just a user_id, which is why I need to use my "getusername" function (gets the username from a ID - the ID) to grab the username from the users table. Though I don't know how to proceed from here, since it is not just one post. Therefore I need the username to either be a part of the $data['posts'] array or some other smart solution. Anyone who can help me out? function index() { $this->load->model('browse_model'); $data['posts'] = $this->browse_model->get_all(); $data['user'] = $this->browse_model->getusername(XX); $this->load->view('header'); $this->load->view('browse/index', $data); $this->load->view('footer'); }

  Read the article

• AssociationTypeMismatch with Expected Type on Nested Model Forms

  - by Craig Walker

  I'm getting this exception when doing a nested model form: ActiveRecord::AssociationTypeMismatch in RecipesController#update Ingredient(#35624480) expected, got Ingredient(#34767560) The models involved are Recipe and Ingredient. Recipe has_many and accepts_nested_attributes_for :ingredients, which belongs_to :recipe. I get this exception when attempting to _destroy (=1) one of the preexisting Ingredients on a nested Ingredient form for the Recipe Edit/Update. This makes very little sense, mostly because the association types are as expected (by the exception's own admission). What makes even less sense is that it works just fine in a functional test. Any ideas what might be causing this, or what I should be looking for?

  Read the article

• Modeling Tools that understand both Relational and LDAP

  - by jm04469

  I am looking to do some modeling and would like to have a tool that can capture not only a relational model like ERWIN but also allow us to easily port to LDAP as an option. NOTE: Visio can connect to an existing LDAP server and draw, but does not allow for you to model first and then deploy, unlike its relational capabilities.

  Read the article

• How to implement ASP.NET membership provider in my domain model

  - by Kjensen

  In a website, I need to integrate membership and authentication. So I want to use the functionality of ASP.NET Membership, but I have other custom stuff, that a "user" has to do. So I am sitting here with my pencil and paper, drawing lines for my domain model... And how can I best utilize the ASP.Net membership, but extend it to fill my needs? Should I create a class that inherits from a MembershipUser and extend it with my own properties and methods (and save this in a seperate table). Or should I let the MembershipUser be a property on my custom User/Client object? What would be a good solid way to do this?

  Read the article

• Best design for generating code from an AST?

  - by Sam Washburn

  I'm working on a pretty complex DSL that I want to compile down into a few high level languages. The whole process has been a learning experience. The compiler is written in java. I was wondering if anyone knew a best practice for the design of the code generator portion. I currently have everything parsed into an abstract syntax tree. I was thinking of using a template system, but I haven't researched that direction too far yet as I would like to hear some wisdom first from stack overflow. Thanks!

  Read the article

• Error Messaged and Error Code design

  - by Ved

  We are designing set of web services which will return XML string in response. These are RESTFul services so I will have to send exception inside element. I am planing to design set of Error code which can help me determine where level occured just by looking at the code. For Example 1000 - Application Level 2000 - DB level 3000 - Network level so if I have error message then I can know right away that this was an application level error and it came from 1st business module. I am not very experience in this so I would love to here your thoughts and criticism. Thanks

  Read the article

< Previous Page | 257 258 259 260 261 262 263 264 265 266 267 268  | Next Page >