Displaying 20 results from an estimated 400 matches similar to: "Rake migrate and creating join tables"
2006 Apr 18
1
N:M:K Relationships
Hello there,
I was wondering whether rails 1.1.1 supports N:M:K relationships that is
having a pivot table with three columns which are primary keys:
say, (apple_id, orange_id, lemon_id)
It would be so great if Rails could be able to have id-s which as
n-tuples.
Thanks,
Roland
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2006 May 19
2
How to run direct DML (insert or update)
I want when the user clicks on a button on the browser
"Perform monthly billing run" the controller to lanch a sql DML
statment to be called (in the model?) than runs something like
"insert into billing (item, qnt, total_cost, billing_run_timestamp
select item, qnt, item*cost as total_cost, timestamp
from services
where service_end_date is null"
How can I run a DML
2006 Aug 16
14
Migrations: only one table per migration file?
Hi all
I have a new migration file created that adds some tables and fills one
with some data:
create_table :sound_styles do |t|
t.column :name, :string, :null => false
end
create_table :show_types do |t|
t.column :name, :string, :null => false
end
create_table :countries do |t|
t.column :name, :string, :null => false
end
ActionView::Helpers::FormOptionsHelper::COUNTRIES.each
2006 Aug 17
3
Migrations for migrating data across databases - is it possible?
Hi All
I am trying to understand if I can use migrations to migrate data under the
following conditions
1. Across 2 different databases (Oracle/DB2) with same schemas.
2. Across 2 different databases (Oracle/DB2) with different schemas.
I am trying to avoid writing DBI/OCI8 scripts.
Can somone please shed some light if this is even possible?
thanks
-daya
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2008 Jun 19
5
How do you create one session cookie for multiple subdomains
I am using the restful authentication plugin and am always prompted to
login if a different subdomain is accessed. I have found a couple rails
"solutions", but none of them seem to work:
# development.rb
1. ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS[:session_key]
= ".localhost"
2. ActionController::Base.session_options[:key] = ".localhost"
Does anyone
2020 Aug 07
4
Saturating float-to-int casts
I have encountered a need for float-to-int casts that saturate to
min/max when the value is out of the range of the target type. It
seems that there is no intrinsic to do this, currently, but on IRC it
was pointed out that a patch [1] has been proposed to implement this
functionality in exactly the way that I was looking for.
It looks like the discussion has died out but I was hoping maybe to
2009 Aug 11
4
func_odbc insert with mssql
I'm trying to use func_odbc to write to a MS SQL db.
Here's my func_odbc conf:
[OPTIN]
dsn=MSSQL-Optin
write=INSERT into OptIn (orgID) values (${VAL1})
Dial Plan
exten => +18665551212,n,Set(ODBC_OPTIN()=dave)
When I do an odbc show, it shows that I am connected to the db. If I use isql, I can write to the db, however, when I use func_odbc, a record will not write. I'm using
2006 Apr 28
9
Q: Timing of render :update in an action ?
Hey folks, am hoping someone can set me straight with a solution to an
issue that has come up involving the timing of rendered page elements in
relation to the completion of an action''s execution.
I have an ror search app which searches through two tables consisting of
7,000 page urls and a table w/ 87,000 related keyphrases within those
pages. Search results can take anywhere from 2
2011 Mar 02
4
migrations in rails?
Are migrations used only when you''re making changes to a database? Does
it just allow the developer to avoid using raw SQL when working with
databases?
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2005 Jul 06
16
Autocompletion not working in Konqueror
I''ve just had a look again at the autocompletion demo that Thomas put up
at
http://script.aculo.us/demos/ajax/autocompleter
Unfortunately, in Konqueror (3.4.1) it doesn''t work at all. Not even an
error is triggered. It does work nicely in Firefox. How about Safari?
I don''t have the time right now to track this down systematically (maybe
latter), but just from
2006 Jan 05
13
Naming convention for foreign keys
Hi,
In "Agilge Web Development With Rails" on page 217, an example of
foreign keys is shown.
I am however unable to find a definition of wheater the naming of the
index is significant. On the above mentioned page, this line is shown in
the example:
constraint fk_items_product foreign key (product_id) references
products(id)
In "fk_items_product", "items" is
2006 Feb 23
11
Sessions question
Hi, I''m a little confused about sessions. I have two objects, object
"Apple" and object "Banana". These two objects have an N:M
relationship. What I am doing is listing All of the Banana objects that
are associated with a single Apple, then below that listing all of the
Banana objects not associated with that same Apple. The user is then
allowed to change the
2008 Jan 30
0
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2006 Mar 05
0
Can I execute DML from within Rails?
Is it possible to execute a DML statement against a MySQL database from
within Rails? I have a table I''m using for batch processing. It needs to be
truncated to reset the primary key before each batch insert statement. I
looked at the API here:
http://api.rubyonrails.com/classes/ActiveRecord/ConnectionAdapters/DatabaseStatements.html#M000532
and didn''t notice anything that
2005 Dec 22
2
help me understand migrations movie
I''m somewhat of a newbie - played with recent versions of rails a few
mths ago, but have decided to start from scratch with 1.0.
I want to build my new db as much as possible with migrations, so I
watched DHH''s migrations movie from rubyonrails.org.
A few things confuse me:
1. He generates the model ("post") before running rake db_schema_dump.
Is that necessary or
2006 Apr 26
1
rake db_schema_dump make syntax error
rake migrate bug with datetime:
> rake db_schema_dump
produced a bad schema.rb that isn''t valid ruby, it has an invalid default, unless ruby
takes bare words:
t.column "date_available", :datetime, :default => Sun Jan 01 00:00:00 Arabic Standard
Time 2006, :null => false
I don''t think the Baghdad time zone should matter.
ruby 1.8.4, rails 1.1.2,
2006 May 23
0
rake db_schema_dump failure
Anyone know why "rake db_schema_dump" would produce the following error:
rake aborted!
Don''t know how to build task ''db_schema_dump''
(See full trace by running task with --trace)
Otherwise, my migrations work fine.
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2006 Jan 19
0
db_schema_dump for SQL Server
We''re using migrations to manage a SQL Server project and have been running
into a number of issues with db_schema_dump/migrations. Can anyone confirm
that these are actual issues with the SQL Server adapter and not issues with
me :)
1) Fields are not properly setup with proper null settings (:null => true /
false). I''m wondering if we need to update the def columns method
2008 Feb 28
1
rake aborted! Don't know how to build task 'db_schema_dump'
Oh noes! What do I do?
Just installed RoR and SQLite3 yesterday, watched a screencast that said
the db_schema_dump will slaughter my enemies and make my poop smell like
rainbows. Now I get rake telling me that it doesn''t know how to. Any
help?
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2006 Feb 01
0
rake db_schema_dump: Dump the data too?
Hi all
I''d like to dump also my data with rake db_schema_dump. Is there a way
to do this?
Thanks
Josh
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