Ruby On Rails Problems

rubyonrails-talk
1

Ive posted the following on various forums and had no reply, and was told this was the place were i could get an answer:

Hi, As you may know I currently own and maintain dev-hq.co.uk, and basically ive been trying to "convert" everythig to RoR as ive been told this could benifit me in many ways. I asked a friend who is good in RoR to help me, and we managed to create an application which does basically everything its supposed to. However just before finishing the project he got bored of helping me time and time again, so there are some unfinished bits which I was hoping you could help with. First off im going to talk about an error I get when trying to edit/create new tutorials in a certain catagory. This is the error I get:

Category(#47881910) expected, got String(#32601110)

Ive looked everywhere for this and cant find a fix that works. Now because I dont want to have to post things I dont need too, Im just going to post the thing that I put in new and edit to get the catagory box to appear (on creation or edit its looking for the catagory number by the way):

  <p>     <%= f.label :category_id %>     <%= f.text_field :category_id %>   </p>

So that is my first problem. Secondly since im classed even lower than bad in RoR I dont know how I make the tutorials in different catagories apear on the catagories page.. If anyone knows how to do this please tell me.

Last of all, This is a feature which was not even started yet, next to the names of the tutorials on the catagory display page I want to display the ammount of tutorials there are in that section in brackets, and then have the catagories sorted on the catagory page by ammount of tutorials.

I know I have alot to ask, but please help guys..

PS: Sorry for the kind of unhelpful topic title, This topic is asking for so much I didnt know what to name it.

Thanks In Advance,

Joe

2

I suggest spending a couple of days going through the Railscasts by Ryan Bates, especially those related to models, relationships and forms.

3

This is probably the part where we ask if you can archive the app and put it somewhere where we can download it; this is all quite vague.

The first error message means it expects an Object of class Category, and instead it sees an object of class String.

This also sounds like you've never touched Rails in your life, and your friend wasn't "helping" but "coding" and probably "fixing" for you :slight_smile:

If you are not familiar with Ruby, go through a basic Ruby tutorial. For a good Rails intro, go through http://www.buildingwebapps.com/learningrails .

4

Is the category_id datatype a string rather than an integer? Check your migrations.

-eric

5

No, the problem is that in his form_for he didn’t pass in a Category object, but a string.

form_for :category do |f|

@category should exist and be a Category model instance. The error pops up because the variable there apparently is just a string.

6

Acctually it was just because I had another variable called catagory. Soz i took so long to reply.

Ive basically sorted all out now (by myself thank you very much), soz for wasted thread.

Thanks,

Joe

7

Oh, and btw, those railscasts did really help!!!! (although I didnt yet see this reply to the thread when I was chekin em out)