I have the following code. I'm still a newbie in Ruby on Rails. As you can see I'm repeating myself 4 times. I tried something like this: if @property.nil? || @property.status_id == 144 || (@property.status_id <= 16 && current_user.nil?) || (@property.status_id <= 16 && current_user.id != @property.user_id) But it gives me lots of e...
So I had to write a program for a computer project for high school and I thought of doing a sudoko solver. The 'solve' algorithm is implemented like this:- For any points where only one element 'fits' looking at rows, columns, 3x3 set, put that number in. Do this repeatedly till it can't be done anymore. This is seen in the 'singleLeft...
What would be the best logic to check all the letters in a given string. If all the 26 letters are available in the provided string, I want to check that and perform so ops. eg. Pack my box with five dozen liquor jugs. Would using a Hash be useful? Or using a bit map? or any other way? BTW my code would be in Java. ...
I am trying to achieve a logic that will take GPS co-ordinates as input and will output either Yes or No based on situation where one can park the car where s/he is. I did try many solutions but failed and want somebody's help so that I don't waste time anymore. Updated I tried this website http://a841-dotvweb01.nyc.gov/ParkingRegs/V...
Possible Duplicate: Learning game programming I'm fairly fluent in C/C++ and ObjC languages and would like to venture into game programming. I've always sort of wanted to do this but never really had the time, but now I do and I'm ready to learn! My goal is to start out and make a simple 2D game on the iPhone (Doesn't have to ...
The programming language or The programming logic..... Because both are equally important for good coding practice. And, please justify your answer. ...
Given this Global.asax.cs: using System; using System.Web; namespace Foo.Web { public class Global : HttpApplication { private const string IntroductionPageShownSessionKey = "IntroductionPageShownSessionKey"; protected void Application_AcquireRequestState(object sender, EventArgs e) { ShowIntroductionIf...
I'm curious on how some other people have handled this. Imagine a system that simply has Products, Purchase Orders, and Purchase Order Lines. Purchase Orders are the parent in a parent-child relationship to Purchase Order Lines. Purchase Order Lines, reference a single Product. This works happily until you delete a Product that is refe...
I have defined new commands within a document as follows: %--------------------------------------------------------- \newcommand{\thetmpone}{} \newcommand{\thetmptwo}{} \newcommand{\tmpone}[1]{\renewcommand{\thetmpone}{#1}} \newcommand{\tmptwo}[1]{\renewcommand{\thetmptwo}{#1}} %--------------------------------------------------------- ...
HI all I want to do something like if(something.val() == 'string1') { something.val('string2'); } else if(something.val() == 'string2') { something.val('string1') } But in one line of code. I can't quite remember how it's done, but it involves question marks and colons lol Sorry to be vague James ...
I know this isn't really a programming question, but it is definitely computer related and someone might know this. How do you construct a SR flip-flop with a D flip-flop and other logic gates? I understand that ultimately, what you want is logic gates (with S and R as inputs) connecting in to the D input of the D flip-flop, but I am...
for(int i=0 ; i++ ; printf("%d",i)); printf("%d",i); O/P is 1 . If we take i=1 then there is an absurd output and if i=-1 then output is 01. How is the For loop functioning.Plz Help.Thanx. ...
Hi all. I want to create an application using which I can measure waist of any human being. But I am not able to identify how to perform such kind of thing. I may can use ACCELEROMETER but how to use it or else if any kind of another logic any one can suggest me so that I can create such kind of application. thanks in advance ...
Ok, I find myself doing this often. I'll attach ids to my tables and I'll "link" the tables together. Just a simple example, a team roster might have categories. Each category has an id. When I add players into the roster, I'll assign them a category id as well to signify that they are part of that category. My question is, for this exa...
I have a list of numbers e.g. 21,4,7,9,12,22,17,8,2,20,23 I want to be able to pick out sequences of sequential numbers (minimum 3 items in length), so from the example above it would be 7,8,9 and 20,21,22,23. I have played around with a few ugly sprawling functions but I am wondering if there is a neat LINQ-ish way to do it. Any sug...
I writing a line item and the values are like this Ad# Pub# Loc date line# ad1 P001 AK 093010 1 ad1 P001 AK 093010 2 ad1 P001 AK 093010 3 ad1 P001 AK 100110 1 When the ad#,Pub#, loc and date are same as the previous record the line is incremented. Onc...
I want to Make Simple a Quiz Buzzer Circuit With LED. e.g. I need LED instead of Buzzer. I don't need any reset Switch. I want to maximize the Use of Logic Gates in this Circuit. and Obviously no Capacitors are Allowed.and obviously no microcontroller. I am trying to do this for 2 days. But Cannot Make it Out. I think The Basic Idea sh...
Hi I am wondering what other bitwise and logical operations you've used that saved your day. For example, my last great time (and resources') saver has been if(!((A^B) & B)) reads: if A has at least B's access rights, where rights were saved in the bit fields A and B. Please use the classical operators: binary & (and) | (or), ^ (xo...
basically i have this problem i have a table of posts(in my mysql database) Post{user_id, post, vote_up(int), vote_down(int)} because users log in, then they get to vote, but i wanted to check if the user has already voted, so then i can not allow them to vote again, and obviously im going to be using user session to control this oppo...
I'm a little confused about MVVM. I understand the concept and can see the advantages. My problem is: does the ViewModel pass data directly from the model. For example, let's say I have a "User" model with a findByName() method. The ViewModel would call this in order to pass the relevant user details to the view. The model would likel...