categories

I am working on category management. Where i have parentId with each row. Categories can be n-level. I can recursively call php function which will return category tree array. Now Issue is: In admin panel i want category listing page as shown below. i.e. which category is under which. Home Products (Edit) (Delete) Products > Product 1 (Edit) (Delete) Products > Product 2 (Edit) (Delete) Products > Product 2 > Product 2 1 (Edit) (Delete) Products > Product 2 > Product 2 2 (Edit) (Delete) Contact Us (Edit) (Delete) I want mysql query result in same order as shown above. I am not sure how can i

Would you say that Objective-C categories are an implementation of the visitor design pattern ? No, Objective-C categories are not an implementation of the visitor pattern. Categories don't really have an exact match in the design pattern world, since the technique of injecting methods into existing classes without subclasses isn't possible in most languages. I'd say it's closer to the decorator pattern , but that pattern is usually implemented with composition, i.e. by wrapping an instance of the object you want to "enhance". The visitor pattern is useful for encapsulating algorithm logic

I'm working on a project that was originally built in XCode 4.0, and then migrated to using XCode 4.2. Now I've tested out migrating to XCode 4.5, and I'm getting a ton of warnings like below... instance method 'values' in category from <pathToTheFile>/HistoryObject+extras.o conflicts with same method from another category These warnings never appeared in previous versions of XCode, and the code hasn't changed. The project is set at iOS 4.3 for the Deployment Target. So, we have from a previous developer a bunch of DAO type classes that I believe were auto-generated from CoreData, and then

Objective-C category feature allows programmer to add new method which was not defined in original class definition. Can I archive similar functionality (language construct or some technique) on C++? Major concern is consistent method calling syntax ( . or -> operator). Let's consider the following class to be extended: struct A { int x, y; A(int x, int y) : x(x), y(y) {} }; You can inherit from this class or write a wrapper class which contains an instance of this class. In most cases, inheritance is the way to go, as a wrapper class isn't an A but it wraps (contains) an A. With C++11 move

I am working on a magento website that has a 2-level (category and subcategory) menu and I would like to add a 3rd level but I don't know how to get it working and I need help. This is the code I have used to get the 1st and 2nd category levels, how can I get a 3rd level? <div class="left_content"> <div class="menu"> <?php $_helper = Mage::helper('catalog/category') ?> <?php $_categories = $_helper->getStoreCategories() ?> <?php $currentCategory = Mage::registry('current_category') ?> <?php if (count($_categories) > 0): ?> <ul id="menu"> <?php foreach($_categories as $_category): ?> <li class=

I am creating a blog through Rails. I am relating the posts and categories models through a many-to-many relationship. How do I incorporate subcategories in this model? Hierarchy The best way is to use one of the hierarchy gems, typically Ancestry or Closure_Tree to create a "tree" type structure for your categories . You'll then be able to associate blogs with each category, creating the hierarchy functionality you need. We've achieved this before - using the Ancestry gem: Categories As you can see from the above image, the "secret sauce" you're missing is that your categories are not in a

How can I use pandas factorize with values that exist across two columns? Specifically, I am trying to convert values that exist in two columns to numeric values, and put the corresponding factorized values into new columns, such that the factorization is consistent with the two input columns 'A' and 'B'. Existing DataFrame: A B 0 a b 1 c a 2 d a 3 e c 4 c b 5 b e 6 e f Desired Output: A B A_ID B_ID 0 a b 0 4 1 c a 1 0 2 d a 2 0 3 e c 3 1 4 c b 1 4 5 b e 4 3 6 e f 3 5 I am able to use factorize successfully for one column using: df['A_ID'] = pd.factorize(df.A)[0] How could I accomplish this