similar to: Serializing AR Objects

I have a rails app that has a search mechanism with a bunch of options. I''ve consolidated all the search parameters into a SearchQuery class. Now I want to store searches to be recalled later. I searched the wiki but couldn''t find any pages about how to do this best. I''m worried that if I just serialize the object I won''t be able to change the class without

I''m writing a wizard-like module in my application where, in a series of steps, the user builds upon an ActiveRecord object, and in the end, saves the AR object into the database. The ActiveRecord object is fairly complex, with a has_many association that could potentially get large, so I don''t want to store it directly in the session. In fact, having done so already caused a

All, I have an attribute on one of my model objects that cannot be serialized because it contains a Proc. Is there a way for me to mark this attribute as "not to be serialized/unserialized" so that session marshaling/unmarshaling won''t fail? Thanks, Wes -- Posted via http://www.ruby-forum.com/.

I have a case where I am abstracting the creation of models. After a fair bit of indirection, I eventually get around to making a .new call. I need to be able to pass params to that .new call. I know I can''t use def initialize() in an AR model (rather frustrating). So, I have found some references to after_initialize, but that doesn''t work either. I see several threads on

Is it possible to use Marshal with wxruby classes to serialize an application''s state? I tried a minimal example of simply serializing a minimal frame object, and I get the error "no marshal_dump is defined for class MinimalFrame". I don''t fully understand this because I also tried another minimal example of dumping a class which did not defined a marshal_dump, and it

I''m marshaling ActiveRecord objects, and I want them to be as small as possible. How can I unload everything that can be reloaded from the database? If they''re marshaled before any of the associations are referenced then the referenced objects aren''t dumped. But if the association has been loaded, how can I unload it? AssociationProxy.reset doesn''t seem to do

Hi. I would like to be able to generate a form dynamically from an object''s to_html_form method, submit it, and then place marshalled object into a database row. Since I do not know exactly all the input fields in advance, I figure this would allow me to dynamically create the input form, stuff the user input into object, marshal the object into the database, and display it later

Backstory: I''m trying to use DRb for some in-house utility code. DRb itself seems to work fine, but I found that when I misspelled a method name, instead of reporting back a NoMethodError, the IronRuby process crashed immediately to the console. This is using a relatively recent build of IronRuby from Github Steps to repro: e = RuntimeError.new ''xyz'' dumped =

I''m seeing a "marshal data too short" error with an ActiveRecord store for my session data. Other posts say that this happens when the size of the session data exceeds the size of the "data" column in the sessions table. But my "data" column is a TEXT field so it seems unlikely that I could have blown it out. Has anyone else seen "marshal data too

I suspect this has been asked 400 times, but Google yields 2-3 rather complex gymnastics in blogs (and possibly dated), and searching list archives on ruby-forum proves kinda useless. Using standard forms, it''s fairly easy to use @object.errors[:field_name] in the form to embed an error message right next to the field that has the invalid entry. The controller uses a simple conditional

What''s the syntax to acquire the updated_at value of a session stored in a db? session.updated_at doesn''t work. can''t find any docs on this. -- gw --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

I''m trying to figure out how Ruby in general, and/or anything extra Rails may have, can talk to Java APIs of third party server apps. After quite a few search attempts net-wide and on ruby forums, and with "Programming Ruby" in hand, I''m coming up with zilch. Either I''m not finding it, or I''m not recognizing it. I''m assuming there has

On 1/16/24 20:16, Dipterix Wang wrote: > Could you recommend any packages/functions that compute hash such that > the source references and sexpinfo_struct are ignored? Basically a > version of `serialize` that convert R objects to raw without storing > the ancillary source reference and sexpinfo. > I think most people would think of `digest` but that package uses >

OK, so I get that ActiveRecord determines model attributes through reflection of the table schema. Handy for many cases, but not mine. I need to override that and provide my own mapping of attribute names to column names to use the mapped names throughout the application code. I''ve been poking around looking for where in AR''s hierarchy I can can inject this mapping, but

> I think one could implement hashing on the fly without any > serialization, similarly to how identical works, but I am not aware of > any existing implementation We have one in vctrs but it's not exported: https://github.com/r-lib/vctrs/blob/main/src/hash.c The main use is vectorised hashing: ``` # Non-vectorised vctrs:::obj_hash(1:10) #> [1] 1e 77 ce 48 # Vectorised

Monit 4.9, Mongrel 1.0.1, Rails 1.2.6, Mac OS X 10.4.11 (PPC) I don''t know whether this is a mongrel issue or a monit issue. I''m trying to poke my way around a system set up by someone else. I have no more experience w/ mongrel that local Rails dev at this point, and a conceptual understanding of how monit is working. I have the Deploying Rails beta book, and I''m

So I''ve googled my brains out, and I see a lot of talk about TextHelper for views, but next to no discussion about cleaning text _before_ it is saved. I figured this had to be asked 4 zillion times, but I''m not finding anything concrete/obvious. Using h is fine as a safety catch, but that alone is not acceptable to me as the means of diffusing the impact of HTML or JS

os x 10.4.10 used gem to install mongrel 1.0.1. seemed to go w/o errors. "mongrel_rails start -d" spits out this error /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/http11.bundle: Failed to load /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/http11.bundle (LoadError) from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in `require''

Could you recommend any packages/functions that compute hash such that the source references and sexpinfo_struct are ignored? Basically a version of `serialize` that convert R objects to raw without storing the ancillary source reference and sexpinfo. I think most people would think of `digest` but that package uses `serialize` (see discussion

I am storing a shape object in a session, and somewhere I picked up that to make sure I can restore the full glory of Shape, I needed this line in ApplicationController model :Shape So, of course, I also have a file /app/models/shape.rb All was working well, but then I decided I''d rather name the model MyShape. So, I - edited the filename to "my_shape.rb" - edited