I’m trying to create an “Inventory” application that has two models:
1- item
2- itemdetails
I have made a “relationship” between those two models, such that:
item has_many itemdetails
Once I try to create an item or itemdetail I get a NoMethodError as
follows: http://pastie.org/private/wvqtorzl12vrkrudzc8ha
This also applies if I wnt to “show”.
The weird thing aslo is that when I get the NoMethodError page after I
add an item gets created, I find that I get a message that the item hs
been cteated succssfully.
And, attached are the files to show what I hav e did?
Any ideas on this?
Thanks a lot.
On Fri, Jul 16, 2010 at 1:08 PM, Abder-Rahman A. [email protected]
wrote:
follows: http://pastie.org/private/wvqtorzl12vrkrudzc8ha
Have you run all your migrations? Do you have the price column in your
itemdetails table?
–
Leonardo M…
There’s no place like ~
Leonardo M. wrote:
On Fri, Jul 16, 2010 at 1:08 PM, Abder-Rahman A. [email protected]
wrote:
follows: http://pastie.org/private/wvqtorzl12vrkrudzc8ha
Have you run all your migrations? Do you have the price column in your
itemdetails table?
–
Leonardo M…
There’s no place like ~
Thanks Leonardo.
I have included “price” when generating the scaffold. When I checked the
“itemdetails” table using SQLite Manager, the price in addition to other
fields are not presented as columns, but, there is ONE column presented
![:expressionless: :expressionless:](https://www.ruby-forum.com/images/emoji/apple/expressionless.png?v=12)
You can even see the fields presented in the show.html.erb og itemdetail
attached.
I also made a rake db:migrate
Why aren’t those fields present in the table?
What do you think I should do now?
Thanks.
Does sequence have to do here?
I mean, if I create the scaffold “item”, must I IMMEDIATELY rake
db:migrate BEFORE creating the scaffold “itemdetails”?
In my tables, I can see that the “items” table has the required fields,
but “itemdetails”. You know the story ![:slight_smile: :slight_smile:](/images/emoji/apple/slight_smile.png?v=6)
Thanks.
On Fri, Jul 16, 2010 at 1:35 PM, Abder-Rahman A. [email protected]
wrote:
Does sequence have to do here?
I mean, if I create the scaffold “item”, must I IMMEDIATELY rake
db:migrate BEFORE creating the scaffold “itemdetails”?
No, no need to.
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–
Leonardo M…
There’s no place like ~
On Fri, Jul 16, 2010 at 1:31 PM, Abder-Rahman A. [email protected]
wrote:
Leonardo M…
attached.
I also made a rake db:migrate
Why aren’t those fields present in the table?
Maybe there was something wrong with your migration generated file
What do you think I should do now?
Check the migration file created for the itemdetails scaffold, fix it
and re-do that migration with rake db:migrate:redo
VERSION=YOUR_MIGRATION_VERSION_NUMBER_HERE
If you want to start fresh, just re-create the scaffold and make sure
all the fields are created properly.
You can also generate a new migration to add the missing fields to
this table, but I wouldn’t recommend this for clarity sake.
Hope it helps.
–
Leonardo M…
There’s no place like ~
Thanks Leonardo. Just a small question since I’m nearly new to Rails.
What is the “migration file” called?
Leonardo M. wrote:
On Fri, Jul 16, 2010 at 1:35 PM, Abder-Rahman A. [email protected]
wrote:
Does sequence have to do here?
I mean, if I create the scaffold “item”, must I IMMEDIATELY rake
db:migrate BEFORE creating the scaffold “itemdetails”?
No, no need to.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to [email protected].
For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
–
Leonardo M…
There’s no place like ~
Leonardo. Seems I may go with creating it from scratch again. But, till
now, don’t know what I have been missing for a column to show up and
other not. ![:expressionless: :expressionless:](https://www.ruby-forum.com/images/emoji/apple/expressionless.png?v=12)
Thanks.
On Sat, Jul 17, 2010 at 12:36 PM, Abder-Rahman A.
[email protected] wrote:
I think I figured what the issue was. I was assigning the type “double”
instead of writing it as “decimal” ![:slight_smile: :slight_smile:](https://www.ruby-forum.com/images/emoji/apple/slight_smile.png?v=12)
WAS —> price:double
NOW —> price:decimal —> Worked
There you go.
Sorry for the late.
To find the migration files you should look at the db/migrate
directory, there you’ll find those files named with the version number
(which is actually a timestamp) , followed by a relevant name about
what they do.
For example, your itemdetails scaffold migration file, might be named
something like this:
20100717192542_create_itemdetails.rb
Hope it helps.
Cheers.
Leonardo M…
There’s no place like ~
I think I figured what the issue was. I was assigning the type “double”
instead of writing it as “decimal” ![:slight_smile: :slight_smile:](/images/emoji/apple/slight_smile.png?v=6)
WAS —> price:double
NOW —> price:decimal —> Worked