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  • Why am I getting the error "undefined local variable or method `assigns'"?

    - by Jason
    I might be missing something basic here, but I'm stumped on this error: model code: class CachedStat < ActiveRecord::Base def self.create_stats_days_ago(days_ago, human_id) d = Date.today - days_ago.day @prs = PageRequest.find(:all, :conditions => [ "owner_type = 'Human' and owner_id = ? and created_at = ?", human_id, d] ) end end spec code: it "should create stats for the specified number of days in the past" do CachedStat.create_stats_days_ago(1, Human.first.id) assigns[:prs].should eql("foo") end The error is: undefined local variable or method `assigns' for #<Spec::Rails::Example::ModelExampleGroup::Subclass_1:0x2fbac28> I feel like I'm overlooking something obvious but it's invisible to me. Any suggestions? Thanks very much! -Jason

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  • Reading the Set-Cookie instructions in an HTTP Response header

    - by Eduardo León
    Is there any standard means in PHP to read the Set-Cookie instructions in an HTTP Response header, without manually parsing it? More specifically, I want to read the value of the ASP.NET_SessionId cookie returned by an ASP.NET Web Service I am consuming. EDIT: I am consuming the Web Service using PHP's native SoapClient class. I can use the __getLastResponseHeaders() method to retrieve the whole of the HTTP response header returned by the Web Service: HTTP/1.1 200 OK Cache-Control: private, max-age=0 Content-Type: text/xml; charset=utf-8 Server: Microsoft-IIS/7.5 Set-Cookie: ASP.NET_SessionId=ku501l55o300ik3sa2gu3vzj; path=/; HttpOnly X-AspNet-Version: 2.0.50727 X-Powered-By: ASP.NET Date: Tue, 11 Jan 2011 23:34:02 GMT Content-Length: 368 But I want to extract the value of the ASP.NET_SessionID cookie: ku501l55o300ik3sa2gu3vzj And, of course, I don't want to do it manually.

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  • Unique number generation with Java Server Faces

    - by Buddhika Ariyaratne
    I am developing an application for a medical channelling centre where multiple users reserve bookings for doctors with JSF and JPA. A sequence number is unique to the Doctor, Date and Session. I tried to get a unique sequence number from counting the previous bookings and add one, but if two requests comes at the same time, two bookings get the same number causing trouble to functionality. How can I get unique number in this case? Can I use an application wide bean to generate it? (I thought it is not practicle to get the unique number from the database sequence number as there are several doctors, sessions and daily they have to have different booking number.)

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  • LaTeX: Left aligning without extra space between words in tables

    - by goldfrapp04
    Here is the illustrating code: \documentclass[letterpaper, 10pt]{article} \usepackage[margin=1in]{geometry} \usepackage{array} \usepackage[none]{hyphenat} \begin{document} \begin{center} \begin{tabular}{|m{4.5cm}|m{1.2cm}<{\centering}|m{8cm}|c|} \hline \centering \textbf{Course Name} & \centering \textbf{Date} & \centering \textbf{Textbook} & \centering \textbf{Grade} \tabularnewline \hline C Programming Language \& Lab & 09/2009 - 12/2009 & Brian W. Kernighan, and Dennis M. Ritchie, \textit{The C Programming Language}, 2nd ed. ISBN:9780131103627 & 89 \\ \hline Integrative Practice on Courses & 07/2011 & LUPA, \textit{Linux Software Engineer}, ISBN:9787030199645 & 87 \\ \hline \end{tabular} \end{center} \end{document} As shown in the pdf generated, there are too much space between some words because I disabled automatic hyphenation. I'd like to leave only single space between words, without justify align. THANK YOU!

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  • Constantly changing frameworks/APIs - how do we keep up?

    - by Jamie Chapman
    This question isn't really for any specific technology but more of general developer question. We all know from experience that things change. Frameworks evolve, new features are added and stuff gets removed. For example, how might a product using version 1.0 of the "ABC" framework adapt when version 2.0 comes along (ABC could be .NET, Java, Cocoa, or whatever you want)? One solution might be to make the frameworks backward compatible; so that code written for 1.0 will still work in version 2.0 of the framework. Another might be to selectively target only version 1.0 of the framework, but this might leave many fancy new features unused (many .NET 2.0 apps seem to do this) Any thoughts on what we as developers should do as best practice to keep our technologies up to date, whilst not breaking our applications?

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  • Threads to make video out of images

    - by masood
    updates: I think/ suspect the imageIO is not thread safe. shared by all threads. the read() call might use resources that are also shared. Thus it will give the performance of a single thread no matter how many threads used. ? if its correct . what is the solution (in practical code) Single request and response model at one time do not utilizes full network/internet bandwidth, thus resulting in low performance. (benchmark is of half speed utilization or even lower) This is to make a video out of an IP cam that gives a new image on each request. http://149.5.43.10:8001/snapshot.jpg It makes a delay of 3 - 8 seconds no matter what I do. Changed thread no. and thread time intervals, debugged the code by System.out.println statements to see if threads work. All seems normal. Any help? Please show some practical code. You may modify mine. This code works (javascript) with much smoother frame rate and max bandwidth usage. but the later code (java) dont. same 3 to 8 seconds gap. <!DOCTYPE html> <html> <head> <script type="text/javascript"> (function(){ var img="/*url*/"; var interval=50; var pointer=0; function showImg(image,idx) { if(idx<=pointer) return; document.body.replaceChild(image,document.getElementsByTagName("img")[0]); pointer=idx; preload(); } function preload() { var cache=null,idx=0;; for(var i=0;i<5;i++) { idx=Date.now()+interval*(i+1); cache=new Image(); cache.onload=(function(ele,idx){return function(){showImg(ele,idx);};})(cache,idx); cache.src=img+"?"+idx; } } window.onload=function(){ document.getElementsByTagName("img")[0].onload=preload; document.getElementsByTagName("img")[0].src="/*initial url*/"; }; })(); </script> </head> <body> <img /> </body> </html> and of java (with problem) : package camba; import java.applet.Applet; import java.awt.Button; import java.awt.Graphics; import java.awt.Image; import java.awt.Label; import java.awt.Panel; import java.awt.TextField; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.net.URL; import java.security.Timestamp; import java.util.Date; import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicBoolean; import javax.imageio.ImageIO; public class Camba extends Applet implements ActionListener{ Image img; TextField textField; Label label; Button start,stop; boolean terminate = false; long viewTime; public void init(){ label = new Label("please enter camera URL "); add(label); textField = new TextField(30); add(textField); start = new Button("Start"); add(start); start.addActionListener(this); stop = new Button("Stop"); add(stop); stop.addActionListener(this); } public void actionPerformed(ActionEvent e){ Button source = (Button)e.getSource(); if(source.getLabel() == "Start"){ for (int i = 0; i < 7; i++) { myThread(50*i); } System.out.println("start..."); } if(source.getLabel() == "Stop"){ terminate = true; System.out.println("stop..."); } } public void paint(Graphics g) { update(g); } public void update(Graphics g){ try{ viewTime = System.currentTimeMillis(); g.drawImage(img, 100, 100, this); } catch(Exception e) { e.printStackTrace(); } } public void myThread(final int sleepTime){ new Thread(new Runnable() { public void run() { while(!terminate){ try { TimeUnit.MILLISECONDS.sleep(sleepTime); } catch (InterruptedException ex) { ex.printStackTrace(); } long requestTime= 0; Image tempImage = null; try { URL pic = null; requestTime= System.currentTimeMillis(); pic = new URL(getDocumentBase(), textField.getText()); tempImage = ImageIO.read(pic); } catch(Exception e) { e.printStackTrace(); } if(requestTime >= /*last view time*/viewTime){ img = tempImage; Camba.this.repaint(); } } }}).start(); System.out.println("thread started..."); } }

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  • How do I group a SSRS report by month?

    - by Anthony K
    I have a set of data that includes a field with the datetime that events happen. i want to group the events by month. I haven't come across a simple and elegant expression to achieve this. So far all I can come up with is to convert the field to a date, then take the year and month as integers and then convert this back to a string with the day set to 1. In Crystal Reports I would group on the datetime field and then set the period to month, very easy. I am sure there is an easy answer to this that I haven't been able to find.

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  • rails rollback updates when task fails

    - by ash34
    Hi, I have the following "generate_report" method being called from a rake task, which gets a hash as an input, that contains the reported hours spent by each user on a task and outputs the data as a .csv report. desc "Task reporting" task :report, [:inp_dt] => [:environment] do |t, args| h = select_data(args.inp_dt) /* not shown here */ generate_report(h) end def generate_report(h) out_dir = File.dirname(__FILE__) + '/../../output' myfile = "#{out_dir}" + "/monthly_#{Date.today.strftime("%m%d%Y")}.csv" writer = CSV.open(myfile, 'w') h.each do |h,v| v.each do |key,val| writer << val end end writer.close end where h = {:BILL=>{:PROJA=>["CYR", "00876", "2", 24], :PROJB=>["EPR", "00876", "2", 16]}, :JANE=>{:PROJA=>["TRB", "049576", "2", 16]}} I would like to set/update a 'processed' flag for each reported transaction and only commit the update when the file is written correctly or rollback the updates when the task fails. How can I accomplish this. thanks, ash

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  • oracle sql developer is truncating my results

    - by nont
    I'm calling a stored function like this: select XML_INVOICE.GENERATE_XML_DOC('84200006823') from dual; The query results then show up in a table underneath, which I can right click and select "Export Date" - XML <?xml version='1.0' encoding='UTF8' ?> <RESULTS> <ROW> <COLUMN NAME="XML_INVOICE.GENERATE_XML_DOC('84200006823')" <![CDATA[<xml>yada yada</xml><morexml>...]]></COLUMN> </ROW> </RESULTS> The problem is the "..." - SQL Developer (2.1.0.63 on Linux) is not showing all the data - its truncating the result and appending the ellipsis. This is of no use to me. How do I get it to export ALL of my data?

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  • subversion 1.6.x losing changes on check-in

    - by Bernard
    I'm trying to figure out if this is a known issue with SVN 1.6.x Developer A modifies a file and commits it. Developer B modifies the same file. Tries to commit it and gets told local copy out of date so does an update and then a commit. However the changes from Developer A are lost so the resulting file only contains the version that Developer B checked in. We can see this in the logs. It seems to happen when the same file is modified but in different places. Anyone else experienced this? We've had it happen 4 or 5 times in the past few weeks and we've lost a half day or so each time trying to figure out what's been lost, etc. We're starting to lose confidence in SVN. Should we be thinking of moving to GIT or Mecurial? Would that sort out this problem?

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  • Most efficient way to fetch and output Content with 2-Level Comments?

    - by awegawef
    I have some content with up to 2-levels of replies. I am wondering what the most efficient way to fetch and output the replies. I should note that I am planning on storing the comments with fields content_id and reply_to, where reply_to refers to which comment it is in reply to (if any). Any criticism on this design is welcome. In pseudo-code (ish), my first attempt would be: # in outputting content CONTENT_ID all_comments = fetch all comments where content_id == CONTENT_ID root_comments = filter all_comments with reply_to == None children_comments = filter all_comments with reply_to != None output_comments = list() for each root_comment children = filter children_comments, reply_to == root_comment.id output_coments.append( (root_comment, children) ) send output_comments to template Is this the best way to do this? Thanks in advance. Edit: On second thought, I'll want to preserve date-order on the comments, so I'll have to do this a bit differently, or at least just sort the comments afterward.

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  • iPhone Core Data - Access deep attributes with to many relationships

    - by ncohen
    Hi everyone, Let say I have an entity user which has a one to many relationship with the entity menu which has a one to many relationship with the entity meal which has a many to one relationship with the entity recipe which has a one to many relationship with the entity element. What I would like to do is to select the elements which belong to a particular user (username = myUsername) and particular menu*s* (minDate < menu.date < maxDate). Does anyone have an idea how to get them? Thanks

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  • In JSF, how to handle repeating over a list that mutates

    - by Jon
    Hello, In a JSF page, I am iterating over a list of items provided by a session-scoped backing bean. The list needs to be kept up-to-date, so it is replaced with a fresh list every X minutes by a thread (in a thread-safe way). On my page, for each item I provide some text inputs and an "Update" button. If the list is refreshed before I hit "Update", the update does not happen (which is my problem). I happen to be using a4j:repeat, but I think this could also apply to other methods of iteration, including using dataTables. Any thoughts on how I can do this in a non-hackish way? Thanks!

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  • using Eclipse to develop for embedded Linux on a Windows host

    - by Travis
    I got a question of using Eclipse to develop for embedded Linux on a Windows host Here are now I have and where I am. 1. a Windows host that have the latest Eclipse + CDT (c/c++ development tools) installed 2. a Ubuntu host (ssh + samba installed) that contains sources and toolschain to build the project. (the windows and ubuntu hosts are sitting within one network segment (In LAN).) 3. I can use the following commands to build this project under Ubuntu. # chroot dummyroot # cd /home/project/Build # sh Build date +%Y%m%d%H%M%S 4. I am now trying to create an eclipse C++ project to achieve the goad of the step 3, but I have been stuck here for a while. any ideas of how it can be done?

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  • Are there some good and modern alternatives to Javadoc?

    - by ivan_ivanovich_ivanoff
    Let's face it: You don't need to be a designer to see that default Javadoc looks ugly. There are some resources on the web which offer re-styled Javadoc. But the default behaviour represents the product and should be as reasonably good-looking. Another problem is the fact that the usability of Javadoc is not up-to-date compared to other similar resources. Especially huge projects are hard to navigate using Firefox's quick search. Practical question: Are there any standalone (desktop) applications which are able to browse existing Javadoc in a more usable way than a browser would? I'm thinking about something like Mono's documentation browser. Theoretical question: Does anyone know, if there some plans to evolve Javadoc, in a somehow-standardized way? EDIT: A useful link to Sun' wiki on this topic.

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  • receive xml file via post in php

    - by thegunner
    Hi, I'm looking for a PHP script that can accept an XML file via a POST, then send a response.... Does anyone have any code that could do this? So far the only code I have is this but not sure about the response or if indeed I am even going in the right direction as XML characters are not saved correctly. Any ideas? <?php if ( $_SERVER['REQUEST_METHOD'] === 'POST' ){ $postText = file_get_contents('php://input'); } $datetime=date('ymdHis'); $xmlfile = "myfile" . $datetime . ".xml"; $FileHandle = fopen($xmlfile, 'w') or die("can't open file"); fwrite($FileHandle, $postText); fclose($FileHandle); ?> Thanks,

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  • Drupal 6 sign-up booking, reservation system with payments

    - by Lukasz
    Hi Guys. I have tried to find out the working solution for implementing simple events booking system in Drupal 6 (limited places, payment, signing up/buying few places for firends). System does not have to be big but easy to customize events to reserve/book places for. I was surprised of not finding much complete solutions. Most of the time I was directed to use modules like: Date, Calendar, Singup, Singup Ubercraft integration, Ubercraft. Does anybody of you has tested it? Is it working and customizable or you would suggest other alternatives on the subject? Wiil appreciate any recomendations.

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  • Combining consecutive dates into ranges

    - by Ragha J
    I have a List of objects public class sample { public DateTime Date; public string content; } I want to be able to create a list of new objects public class sampleWithIntervals { public DateTime startDate; public DateTime endDate; public string content; } The sample objects should be grouped into intervals based on the content. The intervals can include only those dates that are included in the original sample list. I dont know how to do this in Linq. Sample data: {"10/1/2013", "x"} {"10/2/2013", "x"} {"10/2/2013", "y"} {"10/3/2013", "x"} {"10/3/2013", "y"} {"10/10/2013", "x"} {"10/11/2013", "x"} {"10/15/2013", "y"} {"10/16/2013", "y"} {"10/20/2013", "y"} This should give me {"10/1/2013","10/3/2013", "x"} {"10/2/2013","10/3/2013", "y"} {"10/10/2013","10/11/2013", "x"} {"10/15/2013","10/16/2013", "y"} {"10/20/2013","10/20/2013", "y"}

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  • Jquery help for current time indication within a range

    - by Appster
    I'm looking for a simple light-weight jquery plugin that'll help me show something like this in my website: Essentially, this is like a timeline. I know the start and end dates (in that, they don't change) and the position of today's date just gives an indication of how far along I am into a task I took up on Jun 1, 2012. That's all I need it for - a better visual indication of my current status. I've found a lot of jquery timeline plugins but they are too complex for what I'm trying to do. Any ideas or suggestions? Thanks in advance.

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  • External GUI/Helper Library for Visual C++?

    - by Psychic
    I am looking for some kind of library, either open source or bought in, that provides advanced GUI components, helper functions & classes etc. It needs to be something that integrates relatively easily into Visual Studio, and should be based around C++ and Windows. Cross platform isn't needed, and can somtimes make things a little more complex and restricted than single platform, but it is still acceptable. It also needs to be up-to-date and active. There appears to be a number of 'retired' libraries that offer little or no support, so these would not be suitable, as I'm going to need help every now and then! It also needs good documentation. I know about wxWidgets but I'm wondering what other alternatives there are? At first glance, wxWidgets doesn't strike me as what I want/need, especially in the GUI area where the visual components seem striking similar to the stock components. I want more custimization! Is there much out there that meets these requirements?

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  • Converting ObjC Blocks to C# Lambas

    - by Sam
    I need some help converting an Objective-C block to C#. Here is the source ObjC: NSDate* addYear = [_calendar dateByAddingComponents:((^{ NSDateComponents* components = [NSDateComponents new]; components.month = 12; return components; })()) toDate:now options:0]; Now I tried the following in C#: NSDate date = _calendar.DateByAddingComponents((() => { NSDateComponents components = new NSDateComponents(); components.Month = 12; return components; })(), now, NSCalendarOptions.None); To which I get the following compiler error: Expression denotes a 'anonymous method' where a 'method group' was expected. Removing the parentheses around the lambda yields Cannot convert 'lambda expression' to non-delegate type 'MonoTouch.Foundation.NSDateComponents'. What is the correct C# syntax? I need to retain the closures as there are a lot more in the code base that I am porting.

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  • Using git to sync existing file collection?

    - by chrish
    I've got a collection of files that formerly lived in a Subversion repo; on my new server I've imported them into a git repo so I could start getting more experience with that. On several other machines, I've got mostly up-to-date copies of the existing svn repo files. Is there any way to sync to the new git repo, but use these existing files so I don't have to re-transfer all of the data? Is git smart enough that if I do a fetch? or checkout? that it'll notice the files are identical and not re-transfer them?

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  • Ruby - Manipulating Time/DateTime by the Hour/Day?

    - by viatropos
    Where can I find some examples on how to manipulate the time objects by days/hours/etc? I would like to do this: time.now_by_hour #=> "Tue Jun 15 23 MST 2010" time.now_by_day #=> ""Tue Jun 15 MST 2010" time.now_by_hour - 4.weeks - 3.days #=> "Sat May 15 MST 2010" What is the recommended order of operations? The reason for this is I would like to run through lists of times and sort them by date to the hour, not to the minute and second.

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  • Replace existing XML file within iPhone app

    - by Chonch
    Hey, I have an .xml file that is going to be shipped within my app. This file contains values that are read from it and saved as an array when the app launches. Each time the app is run, I want to check with the server if there is an internet connection. If so, I want to get the newest version of the .xml file from the server and replace the one that I currently have saved in my app (this way, the next time the user logs in and doesn't have internet access, he/she will be able to use the old (yet most up to date) data). What is the best way to do this? Thanks,

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  • How can I make a UIPickerView like a UIDatePicker?

    - by iamthepiguy
    I have a custom UIViewController subclass which acts as Datasource and Delegate for a UIPickerView which I would like to serve two different purposes, as each are simple enough, and don't really warrant separate files. One operation must be as a custom picker, and this works fine. However, for the other operation, I want it to act just like a UIDatePicker. The problem is, UIDatePicker is a subclass of UIControl, not UIPickerView. Is there any sort of enum value I can set in a method (or other way) that will set the UIPickerView to act as a date picker? Or do I have to make two completely different classes and use them differently (pain in the ass)?

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