similar to: [Tip] Introspection to determine if a column may be null

Displaying 20 results from an estimated 1000 matches similar to: "[Tip] Introspection to determine if a column may be null"

2008 Mar 14
15
Is anyone running Rails 2.x against a MS SQL Server DB?
I am unable to get ActiveRecord session support to work under 2.x against a SQL Server database. I''m starting to wonder if anyone is running 2.x against SQL Server? Is anyone running under the following configuration: Rails 2.x SQL Server 2000 DB (using AR adapter in ODBC mode) AR store for ActionController session store. I''d like to chat with you if you are. Thanks, Wes --
2009 Sep 28
5
Multi-databases support
Hi, While I was hacking ovirt-server, I have found that it's currently restricted to Postgres DB. Even if I like postgres for serious work on a server, I really prefer to hack/dev locally on a Sqlite or MySQL DB. I have googled on rails in order to find a good answer for the "foreign key problem" which forces OVirt to stay on pg. I have found a plugin on this particular
2006 Jan 19
3
problems with migrations in sql server
Is anyone using migrations with a SQL Server database who might be able to lend me a hand? I''ve used migrations with MySql in the past and haven''t run into any issues so forgive When I run rake migrate nothing is actually getting updated in my database. I created a migration using ./script/generate migration AddFooTable and updated the migration to look as follows: class
2005 Nov 24
1
Log question
development.log contains quite a few SELECTS on system tables like COLUMNS. Wouldn''t it be more efficient to cache this info? I''m also wondering about strings like "[4;35;1m". What''s their purpose and is it possible to get rid of them? They look like screen coordinates and makes no sense in a text file. Christer Processing ReportController#create (for
2010 Nov 25
1
RODBC
Hi, I am running the RODBC examples form the help guide. I am trying to UPDATE a table in an Access data base but I am having an error. library(RODBC) library(termstrc) path = getwd() setwd(getwd()) dbName = "data.mdb" pathdbname = paste(path,"/",dbName,sep="") accesChannel = odbcConnectAccess(pathdbname, uid = "", pwd = "")
2005 Aug 17
1
RODBC and sqlColumns
I have a Postgres database that I am connecting to with the Postgres ODBC driver on Windows XP in R 2.1.0. In the database is a database with two schemas (public and X). With RODBC (1.1-4) , I can connect to the database and get the tables with sqlTables(db). I can query tables in the schema with sqlQuery("SELECT * FROM X.test"). However, I can't get the columns in table X.test
2005 Dec 17
1
lost in an ActiveRecord::StatementInvalid
I have an error I don''t know how to debug. I am adding the login suport in Depot (the example in the RoR book) and LoginController#add_user throws ActiveRecord::StatementInvalid in an innocent /login/add_user GET request. The trace goes down to a call to SQLiteAdapter#table_structure, and the source code suggests what''s happening is that "PRAGMA
2006 Jan 11
8
Oracle and Rails seems really slow.... In development
I''m just looking into how to connect to Oracle using Rails. I''ve got everything connecting and working as it should. I have a Users table in Oracle: create_table "users", :force => true do |t| t.column "username", :string t.column "created_on", :datetime t.column "email", :string t.column "note", :text
2006 Oct 15
3
Migrations - add_column :default=>true, :null=>false
This seems pretty brain dead: add_column :types, :notify_on_create, :boolean, {:default=>true, :null=>false} $ rake migrate Error: ERROR: column "notify_on_create" contains null values : ALTER TABLE types ALTER notify_on_create SET NOT NULL Why doesn''t Rails set the new column to true, as it''s supposed to default to? I tried :default=>1 as well (same
2006 Jan 10
5
problems overriding module with plugin
Hi I am trying to create a plug-in to fix the error in the rails core produced by the multiple delete on a HABTM relationship. I have confirmed that my plug-in is being included into the base during runtime however the code does not seem to be overridding the base class. module ActiveRecord module Associations module ClassMethods def has_and_belongs_to_many(association_id, options =
2005 Dec 22
2
nonstandard postgresql sequence names
I''m working with a legacy postgresql database where the names of tables, columns, etc., do not usually follow Rails conventions. I''ve been able to work around it for the most part, but I ran into this: I have the following test: require File.dirname(__FILE__) + ''/../test_helper'' class SponsorTest < Test::Unit::TestCase self.use_transactional_fixtures =
2007 Jun 21
3
Sqlite3, in-memory db and rspec_server
Hi everyone. I can''t get the above(subject line) combination to work. If I use a standard sqlite3 file db for the test db, and spec_server all the specs on my models pass. If I use an in-memory db for the test db, script/spec w/o spec_server, they all pass. But if I use in-memory and spec_server I get the following error: 1) ActiveRecord::StatementInvalid in ''User should be
2012 May 21
4
Getting model column names
Hello, I am writing a RoR application that connects to a couchDB database using couchrest_model. The definition of my model is the following one: class BdsDataAuthor < CouchRest::Model::Base property :id, Integer property :first_name, String property :last_name, String end I would like to be able to get the list of the model columns, e.g., the result of BdsDataAuthor.columns would be
2006 Mar 09
3
Building a model from a database view
Hi, I''m trying to use rails to build a model from a database view. I get this output C:\dev\v6\project>ruby script/generate scaffold Assignment ... error Before updating scaffolding from new DB schema, try creating a tab le for your model (Assignment) Is this not possible in Rails? It would be *really* helpful for my application. -------------- next part -------------- An
2006 Feb 28
10
Salted hash login, postgresql, unit tests
Hello, I have tried to install the salted hash login generator by following the quick start guide at: http://wiki.rubyonrails.com/rails/pages/SaltedLoginGeneratorQuickstart. Everything seems to work fine until I try to run the unit tests by doing ''rake test_units'', then I get the following error message: <error-message> [brasse@keso login-test]$ rake test_units (in
2006 Feb 07
5
OCI adapter slowdown on dictionary access
Hi, after some experience with Rails on MySQL databases I gave it a try on one of our larger Oracle database. I was facing a problem when Rails tried to detect the columns for a model/table. The appropriate statement ran about 1 min which led to a timeout. Our Oracle guru told me to analyze the SYSTEM schema. After that hadn''t helped, he said the only remaining chance is to use a
2006 Apr 17
7
MySQL backticks and column names
The upgrade to Rails 1.1 hurt my ability to run tests because it generated the following MySQL error: Mysql::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''key ON config (key)'' at line 1: CREATE UNIQUE INDEX key ON config (key) I have a table called `config` with a column
2010 Aug 22
1
rails3: t.index in migrations not working anymore
Hello, I''m playing around with Rails3 and trying to upgrade one of my applications to Rails 3.0.0.rc and I get an error which should be still working. Migration: t.index :name When I execute rake: rake aborted! An error has occurred, all later migrations canceled: undefined method `index'' for #<ActiveRecord::ConnectionAdapters::TableDefinition:0x4b2b6b0> Does some one
2016 Mar 24
10
C5 MySQL injection attack ("Union Select")
mysql Ver 14.12 Distrib 5.0.95, for redhat-linux-gnu (x86_64) using readline 5.1 I spotted something strange and immediately installed a routine to automatically impose an iptables block when the key used for database access is excessively long. My URL was something like this ...../...../.....php?key=123456 The injection was something like this
2006 May 15
8
set_table_name and self.table_name
I have some legacy tables that I used set_table_name on, I''m attempting to write a method that will get key value from a sequence table and then update it and return a value. I''m hoping to put this in the base ActiveRecord method so I would like to reference the table name with self.table_name or something... class Contacts < ActiveRecord::Base set_table_name