observer-pattern

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C# observer pattern message filtering

I\'m writing a video cms and want all my users开发者_开发问答 to have new assets displayed immediately as they come in.[详细]

2023-02-22 08:44 分类：问答
Strange syntax in some Design Pattern code: explanation?

OK, I ran into this today, when the TI TMS470 C++ compiler refused to take it. This comes from the Silver version of the C++ translation of the \"Head First Design开发者_如何学Python Patterns\" examp[详细]

2023-02-21 02:35 分类：问答
How can I implement the Observer pattern in a Firefox Extension?

I\'m trying to implement a simple Observer pattern within a Firefox extension. This initially appears relatively easy, but I thought it made sense to get the functionality from a library[详细]

2023-02-20 17:00 分类：问答
Stopping product saving process in observer

I am currently developing a module working with the product edit in the backend. Its purpose is to retrieve categories the product belongs to and populate an attribute (the Brand attribute) with the l[详细]

2023-02-20 03:49 分类：问答
Adding observer to NSNotificationCenter second time causes EXC_BAD_ACCESS

Hypothetical scenario: In my viewDidLoad method I am adding view controller as an observer for custom notification (say, notification MyFooNotification). Later in the process when view is loaded the[详细]

2023-02-19 22:12 分类：问答
why are my weakrefs dead in the water when they point to a method? [duplicate]

This question already has answers here: Closed 10 years ago. Possible Duplicate: Why doesn't the weakref work on this bound method?[详细]

2023-02-19 13:08 分类：问答
How does one include a module with cache expirations in sweepers?

We have the following sweeper in a rails application: class AgencyEquipmentTypeSweeper < ActionController::Caching::Sweeper[详细]

2023-02-19 03:49 分类：问答
Hide a group in catalog product?

Please help me if anybody know how this work can be done. 开发者_如何学GoI want to hide the website tab in catalog Product, but its functionality should exist. That is, I have made all the check boxe[详细]

2023-02-18 22:42 分类：问答
Rails: accessing current user session in a model (

Maintaining a Rails v2.3.8 app deployed on Apache with mod_passenger. I need access to current user session in one of the models (an Auditor observer to be exact).[详细]

2023-02-18 20:56 分类：问答
How to notify some users when an attribute change in Magento?

I need to notify on group of user when a product is edi开发者_开发百科ted and saved and one given attribute has been changed.[详细]

2023-02-18 16:00 分类：问答