System.identityHashCode(yourObject) will give the ‘original’ hash code of yourObject as an integer. Uniqueness isn’t necessarily guaranteed. The Sun JVM implementation will give you a value which is related to the original memory address for this object, but that’s an implementation detail and you shouldn’t rely on it. EDIT: Answer modified following Tom’s comment below re. … Read more
Python (like Java, C, C++, .NET) uses string pooling / interning. The interpreter realises that “hello” is the same as “hello”, so it optimizes and uses the same location in memory. Another goodie: “hell” + “o” is “hello” ==> True
HEALTH WARNING for the below answer: Know which version of ASP.Net Identity you are using. You should refer to the source code directly if it is one of the newer versions from the github repository. As I write this, the current version (3.0.0-rc1/…/PasswordHasher.cs) of the password handler is significantly different to the below answer. This … Read more
It depends on what you are trying to do… @@IDENTITY Returns the last IDENTITY value produced on a connection, regardless of the table that produced the value, and regardless of the scope of the statement that produced the value. @@IDENTITY will return the last identity value entered into a table in your current session. @@IDENTITY … Read more
A possible solution which works for me, basically I am able to integrate Asp.Net Identity User Profiles with an existing Database. Getting the Asp.Identity Tables: Create an MVC Project with Authentication Individual User Account Open the DB listed under the DefaultConnection in Web.config. It will be called (aspnet-[timestamp] or something like that.) Script the database … Read more
Method objects are created each time you access them. Functions act as descriptors, returning a method object when their .__get__ method is called: >>> What.__dict__[‘meth’] <function What.meth at 0x10a6f9c80> >>> What.__dict__[‘meth’].__get__(What(), What) <bound method What.meth of <__main__.What object at 0x10a6f7b10>> If you’re on Python 3.8 or later, you can use == equality testing instead. On … Read more
You should not need to query the database directly for the current ApplicationUser. That introduces a new dependency of having an extra context for starters, but going forward the user database tables change (3 times in the past 2 years) but the API is consistent. For example the users table is now called AspNetUsers in … Read more
You need to set identity_insert YourTable ON Then delete your row and reinsert it with different identity. Once you have done the insert don’t forget to turn identity_insert off set identity_insert YourTable OFF
Immutable objects don’t have the same id, and as a mater of fact this is not true for any type of objects that you define separately. Generally speaking, every time you define an object in Python, you’ll create a new object with a new identity. However, for the sake of optimization (mostly) there are some … Read more
When you call id({}), Python creates a dict and passes it to the id function. The id function takes its id (its memory location), and throws away the dict. The dict is destroyed. When you do it twice in quick succession (without any other dicts being created in the mean time), the dict Python creates … Read more