search for: hashref

I read in the instructions of Tracks that "upgrading via the rake migrate command is quite a bit more tricky currently with SQLite and SQLite3". Is there any gotcha regarding migrations and SQLite3? -- fxn

I would like to embed my login form on my app''s home page. What''s the best way to render the login action of member controller from another action? Thanks Frank --------------------------------- Relax. Yahoo! Mail virus scanning helps detect nasty viruses! -------------- next part -------------- An HTML attachment was scrubbed... URL:

What''s the standard way to prevent race conditions in controllers? Say user has many posts. Post controller has action add_post that receives user id, post controller find()s the user and while he is creating the post entry an administrator deletes that user in a separate session. We cannot assume the database checks foreign key integrity. How do you get that right? -- fxn

friends of the int-arweb. what does this mean: (in bold) ActiveRecord::StatementInvalid in Contact#create SQLite3::SQLException: SQL logic error or missing database: INSERT INTO contacts Context: this happened after I had finished setting up RoR as per the tutorial at http://maczealots.com/tutorials/ruby-on-rails/ the database, is like, there. is there a nice ruby command like deal to

According to the documentation<http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html#method-i-humanize> of ActiveSupport::Inflector: *humanize*(lower_case_and_underscored_word) Capitalizes the first word and turns underscores into spaces and strips a trailing “_id”, if any. * Example: humanize("employee_salary") # => "Employee salary"* I would

I have just some vague and thus probably wrong ideas about when to use model() in controllers, and by now I err on being redundant. I don''t post them here to avoid leaving anything that may be false in the archives. Can anyone explain exactly in which cases one should use model()? -- fxn

There is a solution to use helpers from controllers ? I have an error : |undefined method `content_tag''| class ApplicationController < ActionController::Base def test return content_tag("a","test") end end

I have a SQL Server column named StartTime of (SQL Server) type datetime If I attempt to set the attribute using public def StartTime=(time) write_attribute(:StartTime, "{ts ''1899-12-30 #{time.hour}:#{time.min}:#{time.sec}''}") end it''s inserting a NULL value. Anyone else able to successfully insert a date time value into a SQL Server table using

...get_mountpoints ($root); + my @fses = sort { length $a <=> length $b } keys %fses; + foreach (@fses) { + eval { $g->mount_options ("", $fses{$_}, $_) }; + print __x("{e} (ignored)\n", e => $@) if $@; + } + + # Construct the "$desc" hashref which contains the main features + # found by inspection. + my %desc; + + $desc{os} = $g->inspect_get_type($root); + $desc{distro} = $g->inspect_get_distro($root); + $desc{product_name} = $g->inspect_get_product_name($root); + $desc{major_versi...

Streaming works with Unicorn + Apache. Both with and without deflating. My understanding is that Unicorn + Apache is not a good combination though because Apache does not buffer, and thus Unicorn has no fast client in front. (I don''t know which is the ultimate technical reason Unicorn puts such an emphasis on fast clients, but will do some research about it.) I have seen in

Is there any way to prevent Rails 3 from using an ORM? In Rails 2, it used to have a description in environments.rb explaining how to do that. In Rails 3, is there any way to tell it to not use any database? I was trying to make some benchmarks from situations that don''t require a database... Thanks in advance, Rodrigo. -- You received this message because you are subscribed to

My application uses only UTF-8. Which is the canonical place to do something global like setting $KCODE? -- fxn

A view display.rhtml sees no controller state variables set in the corresponding display action. Why? -- fxn

I would like to distribute Iconv for Windows with my Rails application (developing on a Mac, no experience with dlls). I threw iconv.dll and charset.dll under lib without luck. Where would I need to put them (if this is possible at all)? -- fxn PS: The reported error message is in Spanish but translated reads something like "the specified process was not found: Init_iconv".

...Note the provisos about this method in the manual page entry. Callers should *not* normally use this method. The implementation of the handle also changes. Before, the handle was a blessed reference to an integer (the integer being the pointer to the C guestfs_h handle). Now we change this to a hashref containing currently the following field: _g => pointer to C guestfs_h handle (as an integer) If this field is not present, it means that the handle has been explicitly closed. This avoids double-freeing the handle. The user may add their own fields to this hash in order to store per-handl...

If a user interrupted transfer of data to a libvirt volume, the incomplete data was left in place. This patch causes the volume to be removed. Fixes RHBZ#616728 --- lib/Sys/VirtV2V/Target/LibVirt.pm | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/lib/Sys/VirtV2V/Target/LibVirt.pm b/lib/Sys/VirtV2V/Target/LibVirt.pm index 029e4e2..943b95a 100644 ---

There is a dedicated section about eager loading in the docs. A coworker discovered eager loading does not work in polymorphic associations the hard way :-) so I''ve written a patch that documents it: http://dev.rubyonrails.org/ticket/10610 There are at least a couple of tickets that implement something that would change that though: http://dev.rubyonrails.org/ticket/9640

Let''s imagine we are modelling a company that have several shops. I have a Worker model and a Shop model. A worker belongs_to a shop, and each shop has_many workers. But, in a shop there''s a distinguished worker that is the supervisor create table shops ( ... worker_id integer -- the supervisor ); How would you express this relationship?

I want to load about 14000 words (a subset of /usr/share/dict/words) into a MySQL table in a migration: class CreateWords < ActiveRecord::Migration def self.up create_table :words, :force => true do |t| t.column :word, :string end say_with_time ''loading words...'' do words = File.join(RAILS_ROOT, ''db'',

Welcome! Welcome! Welcome! Ladies and Gentlemen, today you shall be thrilled and dazzled by wonders of magical mystery. Dr Nic?s Magic Models will now be unveiled to all. Mystery and magic that you will be able to perform at home. Within your ActiveRecord models, never again will you need to write: * validates_presence_of validations * has_many and belongs_to statements * has_many