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  • Override Devise Sign-in with reCaptcha

    - by Bashar Abdullah
    I'm trying to override the Rails devise login to include recaptcha. I followed the steps here http://presentations.royvandewater.com/authentication-with-devise.html#8 however for some reason, authentication always fails. To isolate the problem, I removed all my code and called super directly class SessionsController < Devise::SessionsController def create super end end file is at: Rails.root/app/controllers/sessions_controller.rb the slide suggest Rails.root/app/controllers/sessions.rb but I assume that was just a mistake. Trying it out didn't help either. I even copied the full Sessions Controller code into my own, still gives the problem. Authentication fails here specifically: resource = warden.authenticate!(:scope => resource_name, :recall => "#{controller_path}#new") Any idea what I might be doing wrong?

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  • SET game odds simulation (MATLAB)

    - by yuk
    Here is an interesting problem for your weekend. :) I recently find the great card came - SET. Briefly, there are 81 cards with the four features: symbol (oval, squiggle or diamond), color (red, purple or green), number (one, two or three) or shading (solid, striped or open). The task is to find (from selected 12 cards) a SET of 3 cards, in which each of the four features is either all the same on each card or all different on each card (no 2+1 combination). In my free time I've decided to code it in MATLAB to find a solution and to estimate odds of having a set in randomly selected cards. Here is the code: %% initialization K = 12; % cards to draw NF = 4; % number of features (usually 3 or 4) setallcards = unique(nchoosek(repmat(1:3,1,NF),NF),'rows'); % all cards: rows - cards, columns - features setallcomb = nchoosek(1:K,3); % index of all combinations of K cards by 3 %% test tic NIter=1e2; % number of test iterations setexists = 0; % test results holder % C = progress('init'); % if you have progress function from FileExchange for d = 1:NIter % C = progress(C,d/NIter); % cards for current test setdrawncardidx = randi(size(setallcards,1),K,1); setdrawncards = setallcards(setdrawncardidx,:); % find all sets in current test iteration for setcombidx = 1:size(setallcomb,1) setcomb = setdrawncards(setallcomb(setcombidx,:),:); if all(arrayfun(@(x) numel(unique(setcomb(:,x))), 1:NF)~=2) % test one combination setexists = setexists + 1; break % to find only the first set end end end fprintf('Set:NoSet = %g:%g = %g:1\n', setexists, NIter-setexists, setexists/(NIter-setexists)) toc 100-1000 iterations are fast, but be careful with more. One million iterations takes about 15 hours on my home computer. Anyway, with 12 cards and 4 features I've got around 13:1 of having a set. This is actually a problem. The instruction book said this number should be 33:1. And it was recently confirmed by Peter Norvig. He provides the Python code, but I didn't test it. So can you find an error?

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  • It is possible to use the Exchange 2010 web client with an Exchange 2007 mail server?

    - by michielvoo
    We are evaluating our options to upgrade our Windows SBS 2003 server. We are considering Windows SBS 2008, which comes with Exchange 2007 and an extra Windows Server 2008 Standard license. If we also bought Exchange 2010, could we install it on the Windows Server 2008 Standard machine and use the web client in combination with the Exchange 2007 server (that would be hosting the mailboxes)? Is that a supported server role for Exchange 2010? I remember reading about so called front-end server configurations, but I have no experience with that. Thanks!

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  • alias_attribute and creating and method with the original attribute name causes a loop

    - by Tiago
    Im trying to dynamically create a method chain in one attribute in my model. By now I have this function: def create_filtered_attribute(attribute_name) alias_attribute "#{attribute_name}_without_filter", attribute_name define_method "#{attribute_name}" do filter_words(self.send("#{attribute_name}_without_filter")) end end so I receive a string with the attribute name, alias it for '*_without_filter*' (alias_method or alias_method_chain fails here, because the attribute isnt there when the class is created), and I create a new method with the attribute name, where I filter its contents. But somehow, when I call *"#{attribute_name}_without_filter"* it calls my new method (i think because the alias_attribute some how), and the program goes into a stack loop. Can someone please enlighten me on this.

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  • Hibernate sequence should only generate when ID is <=0

    - by Tim Leys
    Hi all, I'm using the folowing sequence in my code. (I got the sequence and @Id @SequenceGenerator(name = "S912_PRO_SEQ", sequenceName = "S912_PRO_SEQ", allocationSize = 1) @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "S912_PRO_SEQ") @Column(name = "PRO_ID", unique = true, nullable = false, precision = 9, scale = 0) public int getId() { return this.id; } And using the following sequence / triggers in my DB. CREATE SEQUENCE S912_PRO_SEQ nomaxvalue minvalue 20; CREATE OR REPLACE TRIGGER S912_PRO_B_I_TRG BEFORE INSERT ON S912_project REFERENCING OLD AS OLD NEW AS NEW FOR EACH ROW ENABLE begin IF :NEW.pro_ID IS NULL THEN select S912_PRO_SEQ.nextval into :new.pro_ID from dual; END IF; end; I was wondering if there is a way to let hibernate generate a sequence ONLY if the ID is <=0 (not set) or if the ID already exists. I know for most cases my trigger would fix the situation. But I do not want to rely completely on it. I hope someone can help me out :p

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  • Oracle 10g - Best way to escape single quotes

    - by satynos
    I have to generate some update statements based off a table in our database. I created the following script which is generating the update statements I need. But when I try to run those scripts I am getting errors pertaining to unescaped single quotes in the content and &B, &T characters which have special meaning in oracle. I took care of the &B and &T problem by setting SET DEFINE OFF. Whats the best way to escape single quotes within the content? DECLARE CURSOR C1 IS SELECT * FROM EMPLOYEES; BEGIN FOR I IN C1 LOOP DBMS_OUTPUT.PUT_LINE('UPDATE EMPLOYEES SET FIRST_NAME= ''' || I.FIRST_NAME|| ''', LAST_NAME = ''' || I.LAST_NAME ''', DOB = ''' || I.DOB|| ''' WHERE EMPLOYEE_ID = ''' || I.EMPLOYEE_ID || ''';'); END LOOP; END; Here if the first_name or last_name contains single quotes then the generated update statements break. Whats the best way to escape those single quotes within the first_name and last_name?

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  • ASP.net Repeater Control Problem (nothing outputted)

    - by Phil
    I have the following db code in my usercontrol (content.ascx.vb): If did = 0 Then s = "select etc (statement works on server)" x = New SqlCommand(s, c) x.Parameters.Add("@contentid", Data.SqlDbType.Int) x.Parameters("@contentid").Value = contentid c.Open() r = x.ExecuteReader If r.HasRows Then Contactinforepeater.DataSource = r End If c.Close() r.Close() Else s = "select etc (statement works on server)" x = New SqlCommand(s, c) x.Parameters.Add("@contentid", SqlDbType.Int) x.Parameters("@contentid").Value = contentid x.Parameters.Add("@did", SqlDbType.Int) x.Parameters("@did").Value = did c.Open() r = x.ExecuteReader If r.HasRows Then Contactinforepeater.DataSource = r c.Close() r.Close() End If End If Then I have the following repeater control markup in my usercontrol (content.ascx): <asp:Repeater ID="Contactinforepeater" runat="server"> <HeaderTemplate> <h1>Contact Information</h1> </HeaderTemplate> <ItemTemplate> <table width="50%"> <tr> <td colspan="2"><%#Container.DataItem("position")%></td> </tr> <tr> <td>Name:</td> <td><%#Container.DataItem("surname")%></td> </tr> <tr> <td>Telephone:</td> <td><%#Container.DataItem("telephone")%></td> </tr> <tr> <td>Fax:</td> <td><%#Container.DataItem("fax")%></td> </tr> <tr> <td>Email:</td> <td><%#Container.DataItem("email")%></td> </tr> </table> </ItemTemplate> <SeparatorTemplate><br /><hr /><br /></SeparatorTemplate> </asp:Repeater> When I insert this usercontrol into default.aspx with this code: <%@ Register src="Modules/Content.ascx" tagname="Content" tagprefix="uc1" %> and <form id="form1" runat="server"> <div> <uc1:Content ID="Content" runat="server" /> </div> </form> I do not get any error messages but the expected content from the database is not displayed. Can someone please show me the syntax to get this working or point out where I am going wrong? Thanks in advance!

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  • How do I order by foreign attribute for belongs_to refernece where there are 2 keys to foreign table

    - by Will
    I have a Model which has a belongs_to association with another Model as follows class Article belongs_to :author, :class_name => "User" end If I wanted to find all articles for a particular genre ordered by author I would do something like the following articles = Article.all(:includes => [:author], :order => "users.name") However if Article happens to have two references to User how can I sort on :author? class Article belongs_to :editor, :class_name => "User" belongs_to :author, :class_name => "User" end I have tried articles = Article.all(:includes => [:author], :order => "users.name") #=> incorrect results articles = Article.all(:includes => [:author], :order => "authors.name") #=> Exception Thrown

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  • F#: Define an abstract class that inherits an infterface, but does not implement it

    - by akaphenom
    I owuld like to define an abstract class that inerhits from UserControl and my own Interface IUriProvider, but doesn't implement it. The goal is to be able to define pages (for silverlight) that implement UserControl but also provide their own Uri's (and then stick them in a list / array and deal with them as a set: type IUriProvider = interface abstract member uriString: String ; abstract member Uri : unit -> System.Uri ; end type UriUserControl() as this = inherit IUriProvider with abstract member uriString: String ; inherit UserControl() Also the Uri in the definition - I would like to implement as a property getter - and am having issues with that as well. this does not compile type IUriProvider = interface abstract member uriString: String with get; end Thank you...

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  • MySQL port 3306 became filtered when configured with Keepalived on Ubuntu server 12.04 lts

    - by Ludwig
    I'm configuring two load balancer (lb01 & lb02) with keepalived for my two mysql server (db01 & db02) with standard port 3306. There is virtual ip address (192.168.205.10) to access it also act as failover, but somehow the web server in the front can't access this mysql server using vip. Here is my config: Keepalived: Only the mysql part that i added here. LB01: virtual_server 192.168.205.10 3306 { delay_loop 6 lb_algo rr lb_kind DR protocol TCP real_server 192.168.205.4 3306 { weight 10 TCP_CHECK { connect_port 3306 connect_timeout 2 } } } LB02: virtual_server 192.168.205.10 3306 { delay_loop 6 lb_algo rr lb_kind DR protocol TCP real_server 192.168.205.6 3306 { weight 10 TCP_CHECK { connect_port 3306 connect_timeout 2 } } } I already comment out the "bind-address=127.0.0.1" part in both server my.cnf. Also, remove all the firewall prog from my ubuntu server (ufw or iptables). Any help? thanks.

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  • sox mix nested scripts on amazon ec2 rhel linux

    - by Ray
    I'm trying to use "sox" to mix some audio files. The command works great on my Mac terminal sox -m audio.wav "| sox upload.wav -p trim 2 1 pad 6" final.wav This mixes (not concatenate) audio.wav and a section of upload.wav from the 2nd second to the 3rd second and adds 6 seconds of padding in the front, and outputs to final.wav Now the problem is, the SAME EXACT command does NOT work my Amazon EC2 RHEL box. (sox is installed correctly). I get the following error sox soxio: Can't open input file `| sox upload.wav -p trim 2 2 pad 6': No such file or directory For some reason RedHat doesn't like the double quotes. Even though it is documented to be used this way. Thanks for your help!

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  • Which is the best way to deploy a JBoss application?

    - by andreash
    Hi there, we are currently developing a JBoss application. To deploy it, we have a total of four servers (three years old). I am wondering which might be the best to do? There could be a load balancer (even a load-balancer cluster, for failover) in front of two servers, each holding one JBoss and one PostgreSQl host inside XEN environments. Does this make sense? Are there other, better options? Thanks a lot for your advice!

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  • faster ( squid + apache httpd + apache tomcat )

    - by letronje
    We have a production setup where we have Squid in the front(caching images, js, css, etc) Apache httpd in the middle(prefork + mod_rewrite + mod_jk/AJP + mod_deflate + mod_php(few php pages)) Apache tomcat 5.5 at the end serving all the dynamic stuff. What would be the best way to reduce the overhead of having 3 servers in the request path ? Wondering if replacing httpd with a faster web server like nginx/lighttpd will help. httpd right now does the job of url rewriting(for clean urls) and talking to tomcat(via mod_jk) and compressing output(mod_deflate) and serving some low traffic php pages. What would be ideal replacement for httpd given that we need these features? Is there a way to replace (squid + apache) with a single entity that does caching well (like squid) for static stuff, rewrites url, compresses response and forwards dynamic stuff directly to tomcat ? heard abt varnish cache, wondering if it can help.

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  • Rail plugin acts_as_taggable_on :through

    - by Craig
    I have two models: class Employee < ActiveRecord::Base has_many :projects end class Project < ActiveRecord::Base acts_as_taggable_on :skills, :roles end I would like to find Employees using the tags associated with their projects. The geokit-rails plugin supports a similar concept, using its ':through' relationship. Ideally, I would be able to: specify which tags (i.e. skills, roles) would be included in the conditions order the employees by the total number of projects with matching tags be able to access the matching-tag count for each employee for the purposes of building a tag cloud Any thoughts would be appreciated.

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  • How to prevent a modal UIImagePickerController from rotating?

    - by coneybeare
    I have an app that fully support rotation. I am modally adding a UIImagePickerController for which there is no support for UIInterfaceOrientationLandscape and I cannot get the controller to stay in portrait. In other words, I need to disable rotation for the UIImagePickerController so it stays in portrait, without removing rotation for the rest of my app. this seems basic, but I can't seem to locate it. How can I prevent this rotation? UPDATE As suggested, I tried subclassing with the following code: @interface UAImagePickerController : UIImagePickerController { } @end @implementation UAImagePickerController - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation { return UIDeviceOrientationIsPortrait(toInterfaceOrientation); } @end The line is not being hit at all with a breakpoint… i think there must be something funky about the UIImagePickerView

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  • What is this Cable for? 4 Pin to 2 Pin from Riser to Perc in Dell R410

    - by Kyle Brandt
    I got a new raid card for a R410 server since the S300 that came with it doesn't support raid with Linux (No work around for this if SAS from what I could find). Anyways, the RAID card has 2 pins on it and there is a cable that that connects to a 4 pin connection on the riser. The cable only has two wires, one black and one red. What is this cable for? My guess would be maybe LED status for the front panel or something like that, but I am just guessing....

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  • why cant I more than two values from 3 different tables in one query

    - by zurna
    This is strange. In the news details page, I want to take a few different values from different tables with one query. However, for some strange reason, I only get two values back. So the outcome is like: <rows> <row id="4"> <FullName>Efe Tuncel</FullName> <CategoryName/> <Title>Runway Report</Title> <ShortDesc/> <Desc></Desc> <Date/> </row> </rows> If I disable fullname, then I get shortdesc but not others. Same things happens with others. NewsID = Request.QueryString("NEWSID") SQL = "SELECT N.NewsID, N.MembersID, N.CategoriesID, N.ImagesID, N.NewsTitle, N.NewsShortDesc, N.NewsDesc, N.NewsActive, N.NewsDateEntered, C.CategoriesID, C.CategoriesName, M.MembersID, M.MembersFullName" SQL = SQL & " FROM News N, Categories C, Members M" SQL = SQL & " WHERE N.NewsID = "& NewsID &" AND N.NewsActive = 1 AND N.MembersID = M.MembersID AND N.CategoriesID = C.CategoriesID" Set objViewNews = objConn.Execute(SQL) With Response .Write "<?xml version='1.0' encoding='windows-1254' ?>" .Write "<rows>" End With With Response .Write "<row id='"& objViewNews("NewsID") &"'>" .Write "<FullName>"& objViewNews("MembersFullName") &"</FullName>" .Write "<CategoryName>"& objViewNews("CategoriesName") &"</CategoryName>" .Write "<Title>"& objViewNews("NewsTitle") &"</Title>" .Write "<ShortDesc>"& objViewNews("NewsShortDesc") &"</ShortDesc>" .Write "<Desc><![CDATA["& objViewNews("NewsDesc") &"]]></Desc>" .Write "<Date>"& objViewNews("NewsDateEntered") &"</Date>" .Write "</row>" End With With Response .Write "</rows>" End With objViewNews.Close Set objViewNews = Nothing

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  • C++: ifstream::getline problem

    - by Jay
    I am reading a file like this: char string[256]; std::ifstream file( "file.txt" ); // open the level file. if ( ! file ) // check if the file loaded fine. { // error } while ( file.getline( string, 256, ' ' ) ) { // handle input } Just for testing purposes, my file is just one line, with a space at the end: 12345 My code first reads the 12345 successfully. But then instead of the loop ending, it reads another string, which seems to be a return/newline. I have saved my file both in gedit and in nano. And I have also outputted it with the Linux cat command, and there is no return on the end. So the file should be fine. Why is my code reading a return/newline? Thanks.

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  • Fragment caching

    - by red5
    I would like to fragment cache part of a page. On the view I have <% cache("saved_area") do %> . <% end -%> In the controller: def index read_fragment("saved_area") end In config/production: config.cache_store = :file_store, File.join(RAILS_ROOT, 'tmp', 'cache') The file was created in the tmp/cache directory. But I am not sure if the cache is being used in the request, since I presume there should be a line in the log stating that the cache is being used (and there is not).

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  • Whats the scope of a c function defined within objective-c class?

    - by roja
    I was reading up about bypassing objective-c's messaging to gain performance (irrelevant to this specific question) when i found an interesting bit of code: #import <Cocoa/Cocoa.h> @interface Fib : NSObject { } - (long long) cFib: (NSUInteger) number; @end @implementation Fib // c implementation of fib long long cFibIMP(NSUInteger number) { return (number < 3) ? 1 : cFib(number - 1) + cFib(number - 2); } // method wrapper for c implementation of fib - (long long) cFib: (NSUInteger) number { return cFibIMP(number); } @end My question is; when using c function, within an objective-c object, what scope is the c function (cFibIMP in this particular case) placed in? Does the objective-c class encapsulate the c function removing change of name-clash or is the c function simply dumped into the global scope of the whole objective-c program?

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  • XML RSS to HTML parser doesn't work

    - by mstr
    I'm using MCX (I don't even know if someone here is familiar with it, pretty unkown derivate of COBOL and Fortran, look it up in google when you don't believe me) Note: I'm using MCX on the MCX-WebServices server as it does neither support apache or ISS, mabye that is one problem. The thing is that I want to use the XML library to read in an XML file and convert it into an output format readable by the user. The XML lib already has all the functions I need for that, yet my program fails. #!usr/bin/mcx $PGRM.ID: index.mcx $PGRM.AT: /mstr SHOWERROR: WRITE XML.LastError --> OUTPUT DO_FLUSH xcit end\ MAIN: IMPORT Extras.XML USE Extras $XML_RSS_FILE: XML.ReadIn "rss.xml" ! $XML_RSS_FILE --> GOTO SHOWERROR $XML_RSS: XML.FormatRSS1 <-- $XML_RSS_FILE ! $XML_RSS --> GOTO SHOWERROR WRITE $XML_RSS --> OUTPUT DO_FLUSH FLUSH xcit end\ Program output: Nothing The rss.xml file 100% exists and is readable Thanks in advance

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  • MySQLdb not INSERTING, _mysql does fine.

    - by Mad_Casual
    Okay, I log onto the MySQL command-line client as root. I then open or otherwise run a python app using the MySQLdb module as root. When I check the results using python (IDLE), everything looks fine. When I use the MySQL command-line client, no INSERT has occurred. If I change things around to _mysql instead of MySQLdb, everything works fine. I'd appreciate any clarification(s). "Works" until IDLE/Virtual machine is reset: <pre><code>import MySQLdb db = MySQLdb.connect(user='root', passwd='*******',db='test') cursor = db.cursor() cursor.execute("""INSERT INTO test VALUES ('somevalue');""",)</code></end> Works: <pre><code>import _mysql db = _mysql.connect(user='root', passwd='*******',db='test') db.query("INSERT INTO test VALUES ('somevalue');")</code></end> System info: Intel x86 WinXP Python 2.5 MySQL 5.1.41 MySQL-Python 1.2.2

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  • Sorting By Multiple Conditions in Ruby

    - by viatropos
    I have a collection of Post objects and I want to be able to sort them based on these conditions: First, by category (news, events, labs, portfolio, etc.) Then by date, if date, or by position, if a specific index was set for it Some posts will have dates (news and events), others will have explicit positions (labs, and portfolio). I want to be able to call posts.sort!, so I've overridden <=>, but am looking for the most effective way of sorting by these conditions. Below is a pseudo method: def <=>(other) # first, everything is sorted into # smaller chunks by category self.category <=> other.category # then, per category, by date or position if self.date and other.date self.date <=> other.date else self.position <=> other.position end end It seems like I'd have to actually sort two separate times, rather than cramming everything into that one method. Something like sort_by_category, then sort!. What is the most ruby way to do this?

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  • Outlook 2010 exchange setup prompts for [email protected] rather than [email protected]

    - by Force Flow
    We use a hosted exchange service. When users want to set up Outlook 2010 to access their account, they open Outlook and run through the configuration steps. Autodiscover is enabled, and in the user's active directory profile, their email address is in the email field. However, when the configuration process reaches a point where they are prompted for their email account's username and password, their active directory username is filled in by default instead of their email address. Is there a way to fix that? Users get confused and try to enter their email password over and over again and wonder why it doesn't work (and completely miss/ignore the "use another account" button even though they have instructions right in front of them). I'm also using the Office 2010 ADM's in group policy, but I haven't yet seen an option to specify what gets auto-populated in that windows security prompt.

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  • nginx is not using gzip to talk to backend servers

    - by Michael Gorsuch
    Our web servers are running IIS 7 and are configured to compress dynamic and static content. When I hit these servers directly, gzip compression works. I recently placed nginx in front of them, and gzip compression has stopped. I was able to work around this by explicitly enabling gzip compression on nginx itself, but that seems a little inefficient considering I have half a dozen backends and only one active nginx box. It appears that nginx is stripping out the Accept-Encoding header. Does anyone have any advice for how to 'correct' this behavior? A sample configuration: upstream backend { server 127.0.0.1:8080; } server { listen 80; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; location / { proxy_pass http://backend; } }

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