Mark Horrocks wrote:
Bb Serviss wrote:
Many thanks to everyone who replied, this is a great forum. Delphi has
been kind to me with the (visual component library) client data set
which allows me to make a single query, then scope the remaining records
in any way I see fit and loop through
Marnen Laibow-Koser wrote:
Mark Horrocks wrote:
Bb Serviss wrote:
Delphi has been unkind to you, then. That's a bad way to interact with
a database. In general, it is much better practice to have the DB
narrow down the data as much as possible and loop through as few records
as
Mark Horrocks wrote:
Marnen Laibow-Koser wrote:
Mark Horrocks wrote:
Bb Serviss wrote:
Delphi has been unkind to you, then. That's a bad way to interact with
a database. In general, it is much better practice to have the DB
narrow down the data as much as possible and loop through as
Marnen Laibow-Koser wrote:
Hmm. You *could* do a line-by-line port, then refactor to a more Railsy
architecture -- but it will be a herculean refactoring. Rewriting to
the new architecture from scratch will probably be easier.
I will do it from scratch. The algorithms for game draws and
I use Delphi (Lazarus) at work and I constantly miss ruby features :)
I can only echo Marnen's remarks about Rails, Delphi does some weird
things and I've found that doing it the Rails way is usually simpler
and much more efficient.
As far as the bookings, you should do a bottom up review by
Bb Serviss wrote:
I use Delphi (Lazarus) at work and I constantly miss ruby features :)
I still use Delphi 7 because later versions don't like some of the com
stuff in the app exe. Its a nightmare just to refactor that. I have
numerous third party dependencies like patches to Internet Express
There are a few ways to do this.
One would be using a named_scope in Rails 2 or just plain scope in
Rails 3
class Bookings ActiveRecord::Base
named_scope :discount, :conditions = { :discount .5 }
I like to model class methods for pulling specific information from
the database
def
Thanks for your reply. A couple of further comments / question. I am a
noob in Rails.
I like to model class methods for pulling specific information from
the database
def self.inactive
find( :all, :conditions = [inactive = ?, 1], :order
= :last_calibrated_on )
end
And then in
Marnen Laibow-Koser wrote:
If you have 1000
records that you're paging through 10 at a time, there is no reason to
fetch all 1000 if you only want to read 10.
There aren't anywhere near that many. Its just that I change the view of
the records returned many times while testing for a game
Mark Horrocks wrote:
Marnen Laibow-Koser wrote:
If you have 1000
records that you're paging through 10 at a time, there is no reason to
fetch all 1000 if you only want to read 10.
There aren't anywhere near that many. Its just that I change the view of
the records returned many times
Mark Horrocks wrote:
Marnen Laibow-Koser wrote:
I'm still not completely sure I understand exactly what you're doing,
but it looks to me like you're running onto trouble because you're
If I want to re book courts after a game redraw part of the way through
a competition, its necessary
Marnen Laibow-Koser wrote:
Huh? A Rails recordset is simply an array. You can take a piece of
it just as you would from any other Ruby array. There's no explicit
SetRange because you can just use array slicing.
Thanks! I guess this is just what I am looking for. Setrange gives the
It might help you a bunch to think of it as Ruby and not Rails. Most
of what your doing is writing Ruby and in many situations you will
need to know how. Look through the Array methods here and you should
get an idea of what can be done;
http://ruby-doc.org/core/classes/Array.html
Rails also
And then in the controller:
@inactive = Item.inactive
This looks like it will still fire off a query which is what I want to
avoid.
The query would only fire (once) prior to rendering the view. For
example, if you set the variable in the index action of the controller
the query would
Bb Serviss wrote:
Many thanks to everyone who replied, this is a great forum. Delphi has
been kind to me with the (visual component library) client data set
which allows me to make a single query, then scope the remaining records
in any way I see fit and loop through them, breaking out of the
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