Displaying 20 results from an estimated 77 matches for "sciwerks".
2006 Aug 02
5
Fun with ez_where
...table.
test: :[]
value: :filter
and otherwise doesn''t behave as you might expect.
Sooo... if want to use the ez_where plugin with conditions, be careful.
There''s probably a way around this, hopefully Ezra has some nifty trick
for making this work as expected.
_Kevin
www.sciwerks.com
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2006 Jul 15
12
Safe way to destroy records
Hello,
how can I check if a destroy was successful?
Is the object only frozen if deleted or do I have to do an additional
find to see if there is a record left?
What happens if an after_destroy callback returns false? Is there always
a rollback?
Markus
2006 Jul 24
3
HowTo?: Eager caching of third order ActiveRecord assoc.
Hello.
Using the ":include", which generates a "LEFT OUTER JOIN" SQL command,
it is possible to eagerly preload second order data objects (children)
for a given association.
I wanted to know, if it is possible to eagerly preload and cache
third order (or more) data objects, which are little-children or
little-little-children. As I''ve seen. it is possible to add
2006 Jul 17
3
Best practices - field initialization based on display rules
All,
I have a form with the following field interaction rules.
Given checkbox A,
text field B
text field C
If checkbox A is checked then make text field C equal to the value of
text field B and disable field C.
If checkbox A is unchecked then enable field C.
In order to display a form where I''m manipulating an already existing
object, I have something like this in my RHTML template
2006 Jul 15
13
Active Record: Can it auto-create database tables for you?
Hi,
Just get started with Rails and I''m trying to read ahead and find out
whether Active Record supports auto-creation of database tables for you?
Is this supported, or is the concept that you write your own database
DDL to do this?
Thanks
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2006 Jul 26
4
Dropdown with concatenated columns.
What is the best way to create a drop down where the viewable text in a
concatenation of 2 or more columns?
For instance, I hane a lookup table with these columns.
Model FOO
columns: id , name, phone
In my drop select tag, I''d like the user to see:
"name1 phone1"
"name2 phone2"
etc..
I know I can do this using find_by_sql . ..
But, isn''t there a more
2006 Apr 12
22
Dynamic Select Box
Hi,
I''m new to rails/ruby having come from PHP and am just starting to get
my head round how easy it can be :)
However, can anyone point me in the right direction for dynamicaly
updating a select box based upon the choice of a previous select box,
without a page refresh.
Any and all help greatly appreciated.
Thanks
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2006 Jul 16
7
RJS and Action Renders but page doesn''t update
All,
I am trying to perform a simple ajax task and am having some difficulties with the page showing the response. The action performs, but no response on the page.
I have found examples on the web and I believe I have copied and pasted exactly what works from the demo site. However, on my system it isn''t finishing. For a simple test, I have limited it down to an alert.
2006 Aug 18
1
Anyone seen any articles on AJAX autocompleting mulitple...
I don''t even know what its called really, so its hard to search for.
Here''s an example. They do this on MOG.com:
There''s one text field visible. You type in a band name. Another text
field appears. It auto completes album names based on the band name you
chose in the first field.
What is this type of thing called? Where is some source code I could
look at?
any
2006 Jul 17
1
AJAX/drop-down form entry
Hi all. Trying to figure out the best way to implement a drop-down
text-entry box.
Users will select a payment method from a select menu. If they click
credit card, a text box drops down to allow them to enter a cc number.
if they pick another option, they''re routed elsewhere when they submit
the form.
Ajax? Java? other ideas?
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2006 Jul 21
3
adding numbers
hi! how can i add all the values from one tables field? i mean, i have a
table with the entries of a booking (amount), and at the end, i want to
have the total.
i tried with different loops making a method in the model, but nothing.
im doing something wrong, but i dont know what.
please could somebody help me?
ty!!
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2006 May 24
0
polymorphic url and polymorphic partial helpers
Here are a couple of articles I wrote describing a couple of handy
helpers for dealing with polymorphic objects.
These helpers allow you to generate urls and render partials on objects
without knowing what class they are ahead of time.
http://www.sciwerks.com/blog/2006/05/24/polymorphic-urls/
http://www.sciwerks.com/blog/2006/05/24/polymorphic-partials/
Hopefully you will find them useful.
_Kevin
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2006 Aug 07
1
Eager loading wierdness
...different features associated and you search for one,
the .features association only returns the one you searched on instead
of the entire list of associated objects.
Anyone know of a way to structure the search to return them all short of
reloading each object?
BTW: Rails 1.1.4
_Kevin
www.sciwerks.com
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2006 Jul 20
9
Including children''s children?
a has many b''s
b has many c''s
results = A.find params[:id], :include => :b
How do you also make sure the b''s include the c''s?
Thanks for your help.
Thank You,
Ben Johnson
E: bjohnson@contuitive.com
O: 800-341-6826
M: 817-229-4258
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2006 Aug 02
4
Search function in this Forum ??
This forum has been a great resource for me. It would be great if i can
search the forum before posting any question, as i''m sure someone has
already posted that question before. The search function has been
disabled for quite sometime now. I''ve already emailed the administrator
but haven''t got any response.
any idea on when this would be enabled ?
Thanks,
VASU.
2006 Aug 07
3
simple if - then question
hi, could somebody tell me the difference between:
if not params[:id]
flash[:notice] = blabla''
redirect_to(:controller =>"calendar", :action => ''index'')
end
and:
if params[:id] == nil
flash[:notice] = blabla''
redirect_to(:controller =>"calendar", :action => ''index'')
end
the first one
2006 Jul 20
3
sort_by with via a parent models child
I am having a problem with ruby''s sort_by function. I want to sort a
list of parent model objects based on the children of the parent models.
Normally you might say sortedList = modelList.sort_by { |model|
model[''someAttribute''] }
What I am tring to do is
sortedList = modelList.sort_by{ |model| model.children.find(:first,
order=>"price desc" ).price}
2006 Jul 27
5
Calculate methods on attr_accessor objects
Is it possible to use the calculate methods (sum, etc.) on attr_accessor
attributes?
Ie:
Class Item < ActiveRecord::Base
attr_accessor :total_cost
def total_cost
@total_cost = self.cost_unit * self.amount
end
calling Item.sum(:total_cost) or Item.sum(''total_cost'') both return a
unknown column ''total_cost'' mysql error.
I thought that active
2006 Jul 26
4
Execute code when an inheritance happens, or disabling STI
I am trying to inherit from a ActiveRecord class defined in a plugin.
The problem is that ActiveRecord thinks I am doing an STI and is looking
up a table that doesn''t exist.
Currently, I have a method in the parent class that looks like this:
def self.fix_table_name
class_eval do
set_table_name(Inflector.tableize(self.to_s))
end
end
The problem is that this method
2006 Jul 22
4
Visible elements in RJS
How can I know if a an element is visible or hidden in RJS
I''m trying to hide/show some data but it does not work
Error => parse error, unexpected $undefined.
#show_doctor.rjs
if($("#{@element}").visible())
page.hide "hide_#{@element}"
end
Any ideas?
@element contains the value of the html element
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