|Related to : Ruby on Rails, mysql column type :text, What class is this as a ruby object?|
|Inheritance in Ruby on Rails: setting the base class type|
I am implementing a single table inheritance inside Rails. Here is
the corresponding migration:
class CreateA <
create_table :a do
Class B inherits from A:
class B < A
Now, it's easy to get all instances of
But how do I find
all instances of class A (those that are not of type B)? Is this bad
|Rails mysql Type Error after switching to Ruby 1.9.1|
I'm not quite sure how to go about diagnosing this issue, after
switching my app to Ruby 1.9.1 I'm getting this error:
wrong argument type Mysql (expected Struct)
And it seems the app fails to boot, so I'm not
really sure of how to even begin solving this issue. I've made sure
all my gems are up to date and they are.
I'm using RVM,
ruby 1.9.1, and Rails 3 (beta3), I don't have this problem when
running ruby 1.8.7.
|Extract data from Mysql::Object in ruby on rails|
I have code to run sql query in ruby as follows
report = sql.execute("select * from
So after this
report is an Mysql::object. Now I want to extract all fields and its
corresponding data to array or hash.
|How do I find a MySQL ENUM-type column definition in Ruby?|
I have a Mysql table defined as:
`entity` enum('CLN','TDS','TMS','VTMS') NOT NULL
`type` enum('INFO','STAT','WARN') NOT NULL)
How can I find what the ENUM-type column definition
is in Ruby?
|Ruby on Rails, mysql column type :text, What class is this as a ruby object?|
When a column in mysql table is typed :text,
how is this then treated in Ruby.
In other words, what is
Is it a string?
|ruby-on-rails: text data type migration with postgres database|
I'm developing rails application on Postgres.
One problem that
I've been experiencing is when I try to assign an empty text(') to a
text column value. it only recognizes that the text I want to assign
is two single quotes as text value literally.
create_table :products do |t|
My problematic migration:
=> 1, :title => 'green_cos', :description => '})
Here is the resulting record:<