Questions tagged [initializer]

Initializers are called to create a new instance of a particular type. In its simplest form, an initializer is like an instance method with no parameters

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ASP.NET MVC Initializer doesn't seed Database during Update-Database

The tagged duplicate question uses a custom context, I'm using the default ApplicationDbContext. I'm confused why data isn't seeded whenever I run Update-Database. I read the other questions with answers but unfortunately they're using a custom…
Jerdine Sabio
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How to retrieve specific value from Collection Initializer Syntax

List studentList = new List() { new Student() { Id = 1, Name = "John"}, new Student() { Id = 2, Name = "Steve"}, new Student() { Id = 3, Name = "Bill"}, new Student()…
VV Voon
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Paperclip dynamic Proc styles called before object initialized

I have the following paperclip setup. What happens is that I'm using a proc to set the sizes for various styles. However, the proc gets called on new and during the super call. I walked through the debugger and it seems like it processes the :photo…
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Where and how to specify initializer for an ember engine?

In my application, I have used initializers to inject services to routes, controllers and components. I am trying to use ember engine now. I have shared my application services to my engine, but I need to inject the shared application services to…
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(Swift 4.x+) What are the rules for naming parameters in structs’ initializers?

I have been doing an intense - yet basic apparently - study on structs in these last days and one of the things I cannot understand is why one would ever name parameters in an initializer differently from their original name. I know that is…
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JavaFx- initializing scenes in a static way

I want to create a final class, having only static methods- an instance of this class will not be needed- it should be a static container. This class is supposed to have a map field containing created scenes. Now the problem is- method getClass() is…
Embid123
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rspec Object.new does not invoke initialize correctly

module BusinessMath class Cashflows include Newton attr_accessor :cashflows def initialize(cashflows) @cashflows = rectify_cashflows(cashflows) end private def rectify_cashflows(cashflows) cashflows.sort_by!…
Denny Mueller
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array initializer must be an initializer list or string literal c

I am newbie in C. I do not know why I am getting this error and how to fix it? void FPS_PRINT_ENROLLED(){ int checkNum = 0; int ID = 0; int num_Enroll = 0; num_Enroll = Available_ID(); char strNum[3] = 0; itoa(num_Enroll, strNum); …
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Rails 5.2: Requiring ActiveRecord from an initializer

I have in my initializers/my_initializer.rb: ActiveRecord::ConnectionAdapters::AbstractMysqlAdapter::NATIVE_DATABASE_TYPES[:string] = { name: 'varchar', limit: 191 } Why does it throw the error: uninitialized constant…
TomDogg
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Initialising in-class member with constructor arguments with round ( ) brackets?

I'm sorry, I haven't programmed C++ in a while, I'd like to refresh my knowledge about what exact rule I'm violating here: I can do: int main() { int a(5); } but cannot do: struct Foo { int a(5); // Error: expected a type specifier / Error:…
Zebrafish
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Using inline C function is impossible in initializer marked via NS_DESIGNATED_INITIALIZER

Say I have a class like this // DummyObject.h @interface DummyObject : NSObject - (instancetype)initWithFoo:(NSString *)foo NS_DESIGNATED_INITIALIZER; - (instancetype)init NS_UNAVAILABLE; + (instancetype)new NS_UNAVAILABLE; @end and //…
NSFish
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Trying to init a struct with self gives error. What is the right way to do it?

I have a network manager struct. I'm trying to initialize it in my main UIViewController but it is failing. struct NetworkManager { static var enviroment: NetworkEnviroment = .production static var apiKey = "" private let mainApiRouter =…
Kegham K.
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How to add a new component when Angular app fails to bootstrap

I have a question about my Angular app, I have an app that gets its initial config data from an API and can bootstrap the app using those config. Here is the ApiConfigService: export class ApiConfigService { public initialized: Promise; …
AlreadyLost
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Confusing error in initializer list using std::move on unique_pointers

I'm getting this error from this constructor Severity Code Description Project File Line Suppression State Error (active) E0289 no instance of constructor "std::unique_ptr<_Ty, _Dx>::unique_ptr [with _Ty=InputComponent,…
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Collection initializer for List not working giving "; expected" compile error. Why?

I am trying to initialize a generic collection List something like this: List myCustomClassList = new List() {myCustomClassInstance1, myCustomClassInstance2}; I am getting the compile error "; expected". I don't…
richard
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