fluent-interface

I have an object that has a char property: public class Product { public char Code { get; set; } } Entity Framework doesn't seem to be able to map chars (this field is missing from the database when I create the database schema from my model objects). Is there anyway I can map the char (e.g. to a string) using the fluent API? I don't want to change the model objects as they are part of a legacy shared library. Ladislav Mrnka Char is not valid primitive type for entity framework = entity framework doesn't map it. If you check CSDL reference you will see list of valid types ( char is not among

I know how to chain class methods (with the "return $this" and all), but what i am trying to do is to chain them in a smart way, have a look at this: $albums = $db->select('albums')->where('x', '>', '20')->limit(2)->order('desc'); What i could understand from this code sample is that the first 3 methods (select, where, limit) build the query statement that will be executed, and the last one (order) comes to finish the statement and then executes it and throws back the result, right ? But, this isn't the case, because i can easily drop any of these methods (except "select" of course) or - more

How would I design an API to hide the asynchronous nature of AJAX and HTTP requests, or basically delay it to provide a fluent interface. To show an example from Twitter's new Anywhere API: // get @ded's first 20 statuses, filter only the tweets that // mention photography, and render each into an HTML element T.User.find('ded').timeline().first(20).filter(filterer).each(function(status) { $('div#tweets').append('<p>' + status.text + '</p>'); }); function filterer(status) { return status.text.match(/photography/); } vs this (asynchronous nature of each call is clearly visible) T.User.find('ded

If I try to delete a "child" row I always get an exception. Here is a snipset: using (var context = new CompanyContext()) { ItemType itemType = context.ItemTypes.FirstOrDefault(i => i.Name == "ServerType"); ItemTypeItem itemTypeItem = itemType.Items.FirstOrDefault(i => i.Name == "DatabaseServer"); itemType.Items.Remove(itemTypeItem); context.SaveChanges(); <=== exception! } The following exception is thrown on the SaveChanges() method. "The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related

I'll show a problem by example. There is a base class with fluent interface: class FluentPerson { private string _FirstName = String.Empty; private string _LastName = String.Empty; public FluentPerson WithFirstName(string firstName) { _FirstName = firstName; return this; } public FluentPerson WithLastName(string lastName) { _LastName = lastName; return this; } public override string ToString() { return String.Format("First name: {0} last name: {1}", _FirstName, _LastName); } } and a child class: class FluentCustomer : FluentPerson { private long _Id; private string _AccountNumber = String

I'm running EF 4.2 CF and want to create indexes on certain columns in my POCO objects. As an example lets say we have this employee class: public class Employee { public int EmployeeID { get; set; } public string EmployeeCode { get; set; } public string FirstName { get; set; } public string LastName { get; set; } public DateTime HireDate { get; set; } } We often do searches for employees by their EmployeeCode and since there are a lot of employees it would be nice to have that indexed for performance reasons. Can we do this with fluent api somehow? or perhaps data annotations? I know it is