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• How to log in to a website using installed twill?

  - by brilliant

  Hello, everybody!!!! I have just successfully installed TWILL on my computer with the help of one very supportive member of "StackOverflow" (you can check it out HERE) and have tried to run one of the simple examples on the twill documentation page (you can see that page HERE). Here is that example: Let's say my username on www.slash.org is lynxye and my password is mammal. When I try to enter that example code into my Python prompt, I can only type and enter the first line of the code because when I click on "Enter" to start a new line, I get some error messages right away: The same happens when I try to enter this code into my terminal: I think I miss out on some basics here. Perhaps, I need to create a file that would contain that code and then run that file somehow, but I really don't know where I need to create that file and with what extensdion. Can anyone, please, help me with this?

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• Linq : problem with primary key

  - by Nickson

  I get the following error message The table/view 'TABLE1' does not have a primary key defined and no valid primary key could be inferred. This table/view has been excluded. To use the entity you will need to review your schema, add the correct keys and uncomment it when I try to add a view to an Entity Data Model. For testing, I have created a very simple view and I still get the error. below is the view definition SELECT DISTINCT TOP (100) PERCENT MIN(id) AS Expr4, MIN(EmpNo) AS Expr1, MIN(Name) AS Expr2, MIN(Category) AS Expr3 FROM dbo.MYView1 GROUP BY id does any one know of a simple work around. I have looked at this thread http://stackoverflow.com/questions/745341/can-ms-sql-views-have-primary-and-foriegn-keys but in my scenario, what is recommended is not applicable. If I could only have the view added to the Model.

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• What is a header? Especially, what are POST@GET headers?

  - by brilliant

  Hello, I've been trying to find a Python code that would log in to my Yahoo account from "Google App Engine". One supporter on "StackOverflow" gave me this three-step plan: Simulate normal login and save login page that you get; Save POST&GET headers with "Wireshark"; Compare login page with those headers and see what fields you need to include with your request; The problem here is that I have never used "Wireshark" before. Plus, I don't know what the POST&GET headers are. Can You, please, explain it to me (preferably with some example). Thank You.

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• Rails polymorphic associations, two assoc types in one class

  - by snitko

  Consider a class: class Link < ActiveRecord::Base has_many :link_votes, :as => :vote_subject, :class_name => 'Vote' has_many :spam_votes, :as => :vote_subject, :class_name => 'Vote' end The problem is, when I'm adding a new vote with @link.link_votes << Vote.new the vote_subject_type is 'Link', while I wish it could be 'link_votes' or something like that. Is this an AR limitation or is there a way to workaround this thing? I've actually found one related answer, but I'm not quite sure about what it says: http://stackoverflow.com/questions/1168047/polymorphic-association-with-multiple-associations-on-the-same-model/1764117#1764117

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• Why does MSBuild fail from the command line where VS2008 succeeds?

  - by sundeep

  I have an ASP.NET solution that builds just fine from within VS2008. However , it fails when i do this : MSBUILD.exe c:\path-to-sln It fails with a CS0006 error ("Metadata file 'dll_name' could not be found"). It also fails when I try with a .csproj of a project within the solution. What is VS2008 doing that MSBuild is missing ? It is my understanding that VS knows about inter assembly dependencies that MSBuild cant. Is there any way I can inform MSBuild of these? (I need MSBuild to work from the command line because I am calling it from an MSBuild-Task from within CruiseControl.Net.) Thanks in Advance. :3) (I have looked at http://stackoverflow.com/questions/280559/how-to-get-cmd-line-build-command-for-vs-solution , but still dont get it)

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• SSL_CTX_use_PrivateKey_file fail on Linux (part 2)

  - by Fredrik Ullner

  For some reason, my calls to OpenSSL's SSL_CTX_use_PrivateKey_file have started to fail (again) on Ubuntu. My previous post concerning this function; http://stackoverflow.com/questions/2028862/ssl-ctx-use-privatekey-file-fail-under-linux With the above fix, I have been able to use things fine until a couple of days ago. I have no idea why. The error string I'm now getting is error:140B0009:SSL routines:SSL_CTX_use_PrivateKey_file:PEM lib with 336265225 as error code. What is the problem? Additional info: The file passed to the function exist (SSL_CTX_use_certificate_file is passed the same file). The code in the callback function for the password is also not called (at least apparantly not according to the debugger). Everything works fine on Windows.

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• Mix RGB colors (L*a*b*)

  - by Samuel

  Hello! Basically I want two mix two colours color1 and color2. Since simple calculation's bring up stuff like blue+yellow = grey ((color1.r + color2.r)/2 etc) i did some research and found that apparently mixing colors in order for the mixed color to look like we expect it too (e.g. blue+yellow = green) isn't that straight forward. What another stackoverflow post taught me was that in order two achieve the mixture correctly i'd have to use the L*a*b* space / CIELAB and linked to the wikipedia page about this topic. I found it informative but i couldn't really understand how to convert RGB to (sRGB and than to) L*a*b* - how to mix the obtained colors and how to convert back I hope somebody here can help me Thanks, Samuel

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• Fastest sort of fixed length 6 int array

  - by kriss

  Answering to another StackOverflow question (this one) I stumbled upon an interresting sub-problem. What is the fastest way to sort an array of 6 ints ? As the question is very low level (will be executed by a GPU): we can't assume libraries are available (and the call itself has it's cost), only plain C to avoid emptying instruction pipeline (that has a very high cost) we should probably minimize branches, jumps, and every other kind of control flow breaking (like those hidden behind sequence points in && or ||). room is constrained and minimizing registers and memory use is an issue, ideally in place sort is probably best. Really this question is a kind of Golf where the goal is not to minimize source length but execution speed. I call it 'Zening` code as used in the title of the book Zen of Code optimization by Michael Abrash and it's sequels.

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• SQL Server schema comparison - leaves behind obsolete files on synchronization

  - by b0x0rz

  Directly related to http://stackoverflow.com/questions/2768489/visual-studio-2010-database-project-is-there-a-visual-way/2772205#2772205 I have a problem synchronizing between database project and a database in Visual Studio. Usually I synchronize FROM database TO database project (using the Visual Studio data scheme compare new schema comparison). The synchronization works, BUT when I for example corrected the spelling of a key in the database and synchronized it - the file with the WRONG spelling of a key remains (albeit is commented out inside). the new one is correctly added. This file happens to be in: [project name]/Scheme Objects/Schemas/dbo/Tables/Keys But for sure there are others elsewhere. how to automatically remove such obsolete files when synchronizing? thnx

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• jQuery .ajax method in IE7 & IE6 not working but working fine in Firefox

  - by RyanP13

  This relates to my previous post: http://stackoverflow.com/questions/2318696/jquery-load-method-causing-page-refresh-ajax I changed my implmentation to use the .ajax method instead of .load and it works fine in Firefox but not in IE7 or IE6: $('ul#coverTabs > li > a').live('click', function(event) { // Find href of current tab var $tabValue = $(this).attr('href'); $.ajax({ type: "GET", cache: false, dataType: "html", url: $(this).attr('href'), success: function(data){ $(data).find('.benefitWrap').each(function(){ var $benefitWrap = $(this).html(); $('.benefitWrap').replaceWith($('<div class="benefitWrap">' + $benefitWrap + '</div>')); }); } }); event.preventDefault(); }); This is killing me as it has taken ages to get this far. Any ideas where i am going wrong?

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• What is the recommended toolchain for formatting XML DocBook?

  - by Jonathan Leffler

  I've seen Best tools for working with DocBook XML documents, but my question is slightly different. Which is the currently recommended formatting toolchain - as opposed to editing tool - for XML DocBook? In Eric Raymond's 'The Art of Unix Programming' from 2003 (an excellent book!), the suggestion is XML-FO (XML Formatting Objects), but I've since seen suggestions here that indicated that XML-FO is no longer under development (though I can no longer find that question on StackOverflow, so maybe it was erroneous). Assume I'm primarily interested in Unix/Linux (including MacOS X), but I wouldn't automatically ignore Windows-only solutions. Is Apache's FOP the best way to go? Are there any alternatives?

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• WCF method called twice

  - by Saurabh Lalwani

  Hi, I have a web service which is returning data to the desktop application. The problem I am having is, when the web service returns small volume of data everything works fine but when the volume of data is large it throws the following exception: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. And when I am debugging the web service, I see that this particular method is called twice. It executes the return statement 1st time nothing happens, but when it does execute it for the second time the above mentioned exception is thrown in the desktop app. I found similar posts before on stackoverflow but they did not solve my problem. Can anybody please tell me what's going on in here? Thanks!

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• my getJSON code doesn't work in jquery 1.4.2

  - by Nikolius

  This is my first question on stackoverflow. I just wonder why my getJSON code doesn't work with jQuery 1.4.2, it worked smoothly with jQuery 1.3.2 though So here is my code $(document).ready(function(){ $('td.hps_ajax a').click(function() { id = this.id.replace(/.*hps_ajax/,''); if(confirm('Anda yakin mau menghapus record ini?')) $.getJSON('../admin/media_admin/ajaxHapus/'+id, remove_row); return false; }); }) function remove_row(data) { if(data.sukses == '1') { $('td.hps_ajax a#hps_ajax'+data.id).closest('tr').fadeOut('slow',function() { $(this).remove(); }); } else { alert('Gagal menghapus File.'); } } The getJSON link is a CodeIgniter App Link. Anyone know why this doesn't work anymore?

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• Best recruiting SaaS available for tech startups?

  - by ajhit406

  I run a small startup and am always on the lookout for quality engineers. I've seen someone solicit SO with a similar question but there was only one response so I'm going to solicit the community again. (http://stackoverflow.com/questions/112766/free-application-to-keep-track-of-a-recruiting-process didn't suffice for me) Over a long period of time, I've found that my system of recruiting is incredibly inefficient. An applicant who might have been attractive the first week might become overshadowed by other applicants further down the road. Sometimes, applicants who I ignored become relevant to a new position that opens up as an web app becomes more robust and takes a turn in a direction I didn't consider. These are all difficult to track. Knowing that recruiting intelligent people should be an ongoing process, what are the best web applications for managing the process? Are there any apps with features catered specifically towards tech startups? (Free or paid, doesn't matter).

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• Oracle: set timezone for column

  - by dbf

  Hi, I need to do migration date-timestamp with timezone similar to described here: http://stackoverflow.com/questions/1664627/migrating-oracle-date-columns-to-timestamp-with-timezone. But I need to make additional convertion (needed to work correctly with legacy apps): for all dates we need to change timezone to UTC and set time to 12:00 PM. So now dates are stored in local database (New York) timezone. I need to convert them this way 25/12/2009 09:12 AM (local timezone) in date column = 25/12/2009 12:00 PM UTC timestamp with local timezone column. Could you advice, how to set timezone for date value in Oracle (I found only suggestions how to convert from one timezone to another) (for example in Java there is setTimeZone method for Calendar objects). We want to make a convertion this way: rename old date column to NAME_BAK create new column timestamp with local timezone iterate over old column for not-null values set timezone to UTC, time to 12:00 PM drop old column after testing of this migration

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• Know any unobstrusive, simple GUI guidelines or design recommendations for notifications?

  - by Vinko Vrsalovic

  Hello again. I'm in the process of designing and testing various ideas for an application whose main functionality will be to notify users of occurring events and offer them with a choice of actions for each. The standard choice would be to create a queue of events showing a popup in the taskbar with the events and actions, but I want this tool to be the less intrusive and disrupting as possible. What I'm after is a good book or papers on studies of how to maximize user productivity in these intrinsically disruptive scenarios (in other words, how to achieve the perfect degree of annoying-ness, not too much, not too little). The user is supposedly interested in these events, they subscribe to them and can choose the actions to perform on each. I prefer books and papers, but the usual StackOverflow wisdom is appreciated as well. I'm after things like: Don't use popups, use instead X Show popups at most 3 seconds Show them in the left corner Use color X because it improves readability and disrupts less That is, cognitive aspects of GUI design that would help users in such a scenario.

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• Parse Complex WSDL Parameter Information in C#

  - by jaws

  I am attempting to parse WSDL, along the lines of the example given here. The author notes, in the comments, that the example is not capable of drilling down into complex data types. And in fact, when I run the example, it does not appear to even handle simple data types. I have poked around in System.Web.Services.Description.ServiceDescription class, which is used in the example, but cannot find any actual parameter or return type information at run-time. I gather that I may need to do some manual parsing of an xsd file? Both google and stackoverflow appear to lack a complete example of how to drill down into complex types programmatically, so... how should I do this?

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• Creating a web-service client directly from the source

  - by ben

  Hi, I am trying to generate the WS client jar directly from the @Webservice class(es). Let's take this example : package com.example.maven.jaxws.helloservice; import javax.jws.WebService; @WebService public class Hello { public String sayHello(String param) { ; return "Hello " + param; } } I can generate a war file and use glassfish to serve this webservice, and from there I can use the glassfish WSDL URL to generate the client sources. What I am trying to do is to skip the glassfish part. From my maven project defining the webservice, I would like to use the jaxws-maven-plugin to create the client classes but I cannot find any way to specify the actual URL of the webservice. It should be possible right? @see also http://stackoverflow.com/questions/2097789/creating-a-web-service-client-with-a-known-but-inaccessible-wsdl

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• Tooltips with infinite timeout?

  - by romkyns

  I'm thinking of setting the timeout on all my tooltips in a WinForms application to infinity (or an extremely large value). The motivation is that it's annoying for the user if the tooltip disappears while I'm still reading it, without providing any extra value whatsoever as far as I can tell. Normally I wouldn't ask something like this on StackOverflow, but the overwhelming majority of all software sets timeouts on tooltips, so it makes me wonder whether perhaps there is some important consideration I'm missing? Or is this just an old convention that nobody gives further thought to? If you would hate infinite timeout as opposed to a short timeout, please explain why. (If you just think tooltips are a bad idea altogether then that's a separate consideration; this question is specifically about the infinite timeout.)

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• mysql utf8 turkish characters not correct recognized

  - by sabri.arslan

  Hello, In mysql utf8 coded turkish data i can't search "I" and "i". when i search its giving result contains "Y" or "y". Because in latin1 "I" displaying as "Ý" and "i" as "ý". in latin1 data i was used latin1_general_ci for correct result. but there is not alternative collation for utf8. its already utf8_general_ci. is there any other people have some problems or do you have a solution. thanks. i have tried stackoverflow search engine to for this problem. if its have mysql and utf8 then my work true. try search "alI" and "ali". both search give another result. but both same in turkish. the "I" is capital i and capital "I" is "i" in turkish.

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• Rails: Cannot add :precision or :scale options with change_column in a migration?

  - by Josh Pinter

  This seems to have been asked before: http://stackoverflow.com/questions/1402547/rails-decimal-precision-and-scale But when running a change_column migration for :precision or :scale they don't actually affect the schema or database, but db:migrate runs without errors. My migration file looks like this: class ChangePrecisionAndScaleOfPaybackPeriodInTags < ActiveRecord::Migration def self.up change_column :tags, :payback_period, :decimal, { :scale => 3, :precision => 10 } end def self.down change_column :tags, :payback_period, :decimal end end But my schema (and the data) remains as: t.decimal "rate" # previous column t.decimal "payback_period" t.string "component_type" # next column Anybody else have this issue? Thanks, Josh

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• How to get the row and column of button clicked, in the grid event handler?

  - by younevertell

  Once the added button in grid is clicked, how to find which row and column the button is located in the grid event handler, like click event or some other events? Not the button click event handler #region Grid event handler setup myGrid.MouseEnter += new MouseEventHandler(myGrid_MouseEnter); myGrid.MouseLeave += new MouseEventHandler(myGrid_MouseLeave); myGrid.MouseDown += new MouseButtonEventHandler(myGrid_MouseDown); myGrid.MouseUp += new MouseButtonEventHandler(myGrid_MouseUp); #endregion Thanks I notice that Boyan has some solution for the button click event handler case http://stackoverflow.com/questions/363100/in-wpf-how-can-i-determine-what-column-row-in-a-grid-a-control-is In the Click event handler for the button you say: int row; Button btn = sender as Button; if (btn != null) { row = Grid.GetRow(btn); // And you have the row number... } else { // A nasty error occurred... }

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• Normalize or Denormalize in high traffic websites

  - by Inam Jameel

  what is the best practice for database design for high traffic websites like this one stackoverflow? should one must use normalize database for record keeping or normalized technique or combination of both? is it sensible to design normalize database as main database for record keeping to reduce redundancy and at the same time maintain another denormalized form of database for fast searching? or main database should be denormalize and one can make normalized views in the application level for fast database operations? or beside above mentioned approach? what is the best practice of designing high traffic websites???

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• Renaming and Moving Files in Bash

  - by KT

  HI, I'm completely new to Bash and StackOverflow. I need to move a set of files (all contained in the same folder) to a target folder where files with the same name could already exist. In case a specific file exists, I need to rename the file before moving it, by appending for example an incremental integer to the file name. The extensions should be preserved. The file names could contain dots in the middle. Originally, I was thinking about comparing the two folders to have a list of the existing files (I did this with "comm"), but then I got a bit stuck. I think I'm just trying to do things in the most complicated possible way. Any hint to do this in the "bash way"?

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• JSON - msg.d is undefined error

  - by Narmatha Balasundaram

  Hi - Webmethod returns an array of objects - something like this {"d": [[{"Amount":100,"Name":"StackOverflow"}, {"Amount":200,"Name":"Badges"}, {"Amount":300,"Name":"Questions"}]]} On the client-side, when the JSON is referenced using msg.d, I get a msg.d is undefined error. I am using jQuery JavaScript Library v1.4.2 How do I access the elements in the array of objects? Adding more findings, code and questions: I don't see __type in the JSON object that is returned. Does that mean that the object sent from the server is not JSON formatted? When the __type is not a part of the response, I will not be able to use msg.d? (msg.d is undefined) Some more: 1. I can access the elements from client side using msg[0][0].Amount - How can I specifically JSON format my return object (from the server)

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