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I'm wondering to what extent I can use associations in Rails. Take into consideration the following:
class User < ActiveRecord::Base has_one :provider has_many :businesses, :through => :provider end class Provider < ActiveRecord::Base has_many...
Started by Bloudermilk on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Although it is a very useful thing to have, you can't has_many :through a has_many :through; ActiveRecord::Base has_one :provider has_many :businesses, :through => :provider has_many :bids, :through => :businesses end....
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I am trying to do something like this:
All networking connections originating from Ubuntu should go through my Wireless connection All the connections originating from within Windows (installed inside a VM) should go through the wired connection. Now,...
Started by Legend on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at serverfault):
Just make sure....
Don't worry, your VM will not be affected.
Or just disable NetworkManager for the LAN interface and take it's IP away ( ifconfig eth0 0.0.0.0 ) .
You need to set a higher metric on the LAN interface (or a lower one on the WLAN interface) .
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Hi,
please help me with following programming exercise..
Lets say I have a text file MyFile.txt with following content
hellosam whatsup mynameisjohn ...
I want to go through each word in MyFile.txt and then see which file in my local folder c:\myfolders...
Started by dotnet-practitioner on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
String[] files = Directory.GetFiles("directorypath"); foreach (string s in files) { FileInfo... .
Its more fun to figure the rest out yourself.
This is more psuedo-code.
Probably something similiar to this...
This post by Derik Whittaker will be useful for you .
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Ask your Facebook Friends
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Hi all...
I have a javascript array say jsArr[]. I want this array to be passed to a php page through the get method. Something like "nextPage.php?arr=jsArr[]".
There i should be able to access the array like "$arr[] = $_GET[arr]" and perform operations...
Started by SpikETidE on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Var_dump($_GET);
outputs: array(1) { ["arr"]=> array(2) { [0]=> string(2) "js" [1]=> string(3) "js2" } }
You... .
One way to achieve this would be jQuery's serialize()
you need to change your url to be:
nextPage.php?arr[]=js&arr[]=js2
for example .
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Is there any differences between doing
Field field = something.getSomethingElse().getField(); if (field == 0) { //do something } somelist.add(field);
versus
if (something.getSomethingElse().getField() == 0) { //do something } somelist.add(something.getSomethingElse...
Started by James McMahon on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
The JVM might.
There is a difference in that accessing variables through getters results in a method call.
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Can't get my head around this...
I have 3 tables like this:
Computers Id Name ComputerLogins Computer_Id User_Id NumberOfLogins Users Id Name
Computers "have and belong to many" Users "through" ComputerLogins.
Sample data:
Computers: Id Name 1 "Alpha"...
Started by Eric Baker on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Use:
CREATE VIEW your_view AS SELECT c.id AS computer_id, u.id AS user_id, COUNT(*) AS NumberOfLogins FROM COMPUTERS c JOIN COMPUTERLOGINS cl ON cl.computer_id = c.id JOIN USERS u ON u.id = cl.user_id GROUP BY c.id, u.id
SELECT CL.*, U.* --change this... .
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Hello all, I want to build something so that a person can have many email addresses and an email address has only one person, but because I also have another model called Company that also can have many email addresses, and I don't want to have columns...
Started by Nik on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
For example:
class Person has_many :emails, :as =>.
Cleaner than has_many :through associations.
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The following method (in which I hopefully did not make any mistakes while dramatically simplifying it for this post) is working properly and set up using the Streamed transfer mode over the net.tcp protocol. The problem is that the performance is significantly...
Started by Greg on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Here is....
I don't know the answer to your first question (I think you need to provide more code to show what you are doing for both your tests), but your second question regarding the disposal of the stream, the answer is that you need to do it yourself .
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I have four model classes:
class Group < ActiveRecord::Base has_many :projects has_many :personal_blogs end class Project < ActiveRecord::Base has_many :events, :as => :event_producer end class PersonalBlog < ActiveRecord::Base has_many :events...
Answer Snippets (Read the full thread at stackoverflow):
Why not just do:
class Group <.
But will allow you to use a "has_many through" association.
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I've installed a stock mysql 5.5 installation, and while I can connect to the mysql service via the mysql command, and the service seems to be running, I cannot connect to it through spring+tomcat or from an external jdbc connector.
I'm using the following...
Started by iftrue on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
Also check....
Log in as root, and run the command lokkit from the prompt, disable firewall and SElinux and see if you have the same problem .
If you are running a Linux installation, you probably have lokkit blocking incoming communications except via SSH .
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