search for: subcategori

I''ve got a model, "category" and another model "subcategory." Each subcategory belongs_to a category, and a category has_many subcategories. What I need to do is set it up so that I can search Category and Subcategory with one .find call. So: Category.find(:all, <etc) will find categories and subcategories. Now, I believe this can be done by making Subcategory a subclass of Category. Am I right? Unfortunately, there''...

I''m working on a simple CMS. The main data type are "listings" a listing habtm (has_and_belongs_to_many) categories and subcategories. Subcategories belong_to categories. Subcategories are basically the same as categories, but they are treated differently in a few situations. The problem is, I can''t seem to write the view/controller/model code that allows me to create a listing that contains subcategories! Even th...

Hi, I have two models: category and subcategory. (one to many relationship), and a controller ''home'' I''d like to display all the categories and their sub categories in the view: home\index.rhtml. I have a method in the ''home'' controller'' like this: def list_categories @categories = Category.find(:all) end This list all the categories

...rails for. I''m new to rails, so I''m not sure how easy it would be to implement something like this using ActiveRecord. Here''s the situation: Category > subcategory > subcategory > product Category > subcategory > product Some categories will have many subcategories, others few. I want to use adjacency lists in the database like ID CATEGORY PARENT where top-level categories simply have no parent, but subcategories do. My concern is whether Rails, using ActiveRecord, can be made to understand this. I''m coming from PHP and know I can cod...

I have a model, listings. Listings habtm categories and subcategories, which are seperate models. What I want to do is search categories for certain items, like so: @categories = Category.find(:all, :conditions => ["name LIKE ?", "#%{:search_string}%" and subcategories for the same: @subcategories = Subcategory.find(:all, :conditions =&...

...ng to add a new blog. He/she has to select a category. Upon selecting a category from a drop down box, a new sub categories drop down box will be created (hence an AJAX call). Got this implemented and it''s ok. Now, let''s assume that a given blog can have multiple categories (and subcategories). For example, a blog on a restaurant review can belong to the following categories & subcategories: 1) "food" -> "fine dining" 2) "people" -> "lifestyle" 3) "travelling" -> "restaurants" After selecting a set of category...

Hi, i was looking through the docs and couldn''t find a good clean solution for ordering a partial with an :order clause. say i was iterating over categories and thier corresponding sub-categories (regular belongs to) and wanted to order the subcategories according to a certain column; <% for category in @categories %> <% render: partial => ''sublist'', :collection => category.subcategories, :order => ''position'' %> # position is a column in my subcategories table <% end %>...

Hi, I am having problems with my page. I have a banner and navigation bar in controller_name.rhtml in app/views/layout. Can someone please help? Thanks In the navigation bar, I have the following links: Category1 Sub-Category1 Sub-Category2 Sub-Category3 Sub-Category4 Sub-Category5 Sub-Category6 In the main content, I have the following links: Sub-Category1 edit delete

This hopefully is trivial. I am trying to reshape the data using the reshape package. First I read in the data: a2009 <- read.csv("Total2009.dat", header = TRUE) Then I trim it so that it only contains the columns that I have interested in: m2009 <- melt(a2009, id.var=c("DayOfYear","Category","SubCategory","Sku"),

Hello, I am trying to make the "switchover" to programming my apps in Rails and have a question about database structure. In the past i would structure a many to many like this: categories ---------------------------------------------------- | id | name | ---------------------------------------------------- 1 Some Category 2 Another

I''ve got a menu in which I have all of my categories as links. Each category also has subcategories. I want to set it up so when you mouse over the category the subcategories will pop up (to the right of the main list, but that''s just CSS). This is what I have so far: <% for category in @categories %> <a href="#" onmouseover="Element.show(''subcateg...

I''m writing a simple CMS where every item ("listing") HABTM categories and subcategories (which themselves belong_to a category). What I''m trying to do now is create a UI effect for listing creation: when you go to create a listing, only the possible categories will be shown, but when you select a category a set of new categories will be displayed like so: Lions Tigers...

...s/javascripts/dymanic_categories.js.erb where line #3 raised: You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occurred while evaluating nil.each Extracted source (around line #3): 1: // javascripts/dynamic_categories.js.erb 2: var subcategories = new Array(); 3: <% for subcategory in @subcategories -%> 4: categories.push(new Array(<%= category.id %>, ''<%=h subcategory.subcategory_name %>'', <%= subcategory.id %>)); 5: <% end -%> Anyone got an idea, how does it happen? --~--~---------~-...

...ugh I think my models are a little more complex than what fits this narrative. I have a directory of members, each member can belong to multiple categories. The category table references itself to build a category list, joined with parent_id. Top level categories will not have members, only subcategories. ie. Finance is top level (no member associated). Accountants, financial advisors, investors will be subcategories (with lots of members). I''m using a join table between members and categories to build the associations between members and the category. class MemberToCategory < Ac...

I have a simple CMS I''m creating, and the primary model is the "listing". A listing habtm (has_and_belongs_to_many) categories (up to two) - allowing the listing to print its categories and a category to print its listings. I also need subcategories, which are different from categories in two ways: a listing can have as many subcategories (from it''s two categories) as it wishes, and subcategories are displayed differently in both administration and display views. So what I have is: Class Listing < ActiveRecord::Base has_a...

I have a model, categories, and another model, subcategories. In my current code these have no connection except for the fact that categories has_many subcategories and a subcategory belongs_to a category. But by necessity, I need to change it so Subcategory extends Category; so that I can search both models with one command. I was hoping it would be...

Hi, The current AliasAnalysis marks may-alias for cases when memory passed as function argument. i.e. void foo(int *A, int *B, int *C) { for (int i=0; i<N; i++) A[i] = B[i] + C[i]; } In the above example, it's may-alias for memory 'A', because 'A' is not known at 'foo' call sites. Alias analysis is able to figure out memory 'A' is no-alias, if I

Hello there! This is my first post! ;) I''m starting on ruby on rails, so I have many doubts about it! I''m trying to create a system that uses categories/subcategories. I created a scaffold for a table that has the following fields: - id int(11) - name varchar(50) - keyname varchar(50) - visible enum(''0'',''1'') default ''0'' - pid int(11) The rows are added as: 1, Articles, articles, 1, 0 2, Ruby on Rails, rub...

Hi, I am creating a form that a user can post a message based on his selection on category and subcategory. (A category has many subcategories.) How do I dynamically populate subcategory dropdown list when user chooses a category from category dropdown list? Thanks in advance. -- Best regards, Ming Ma

There are function which does have optimization opportunities but because of may-alias memory dependencies sometimes optimization is not effective. May be runtime checks kills the gains of optimization. For such cases aiming to do interprocedural function specialization optimization where in the clone function version no-alias assumption can be assumed and the original function version will hold