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  • Select distinct from multiple fields using sql

    - by Bryan
    I have 5 columns corresponding to answers in a trivia game database - right, wrong1, wrong2, wrong3, wrong4 I want to return all possible answers without duplicates. I was hoping to accomplish this without using a temp table. Is it possible to use something similar to this?: select c1, c2, count(*) from t group by c1, c2 But this returns 3 columns. I would like one column of distinct answers. Thanks for your time

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  • LINQ Query Problem

    - by Ritz
    I want to use this in my application but I'm getting an error for GetByLatest().Cast<IRss>(); Please suggest a solution IList<IRss> news = new Trytable().GetByLatest().Cast<IRss>(); return new RssResult(news, "William Duffy - Glasgow Based ASP.NET Web Developer", "The latest news on ASP.NET, C# and ASP.NET MVC ");

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  • Gem installed and require but "Constant missing"

    - by Tom Andrews
    I have installed the gem 'simple_uuid' but nothing seems to be working. Using irb and running the following: require 'rubygems' require 'simple_uuid' is fine, both return true. But running the following: // Class added by simple_uuid UUID.new returns NameError: uninitialized constant UUID from (irb):3 from :0 I'm a ruby newbie, so don't assume much in the answers. Thanks.

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  • update jquery validation plugin dateISO javascript

    - by Ian McCullough
    Right now...the dateISO method is as follows: dateISO: function(value, element) { return this.optional(element) || /^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$/.test(value); }, but ive noticed that when a user enters something like 1991-99-99 it sees it as a "valid date" when it obviously is not. How would i change this code to have it check if the month is 01-12 and the date is 1-31?

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  • Print newline in PHP in single quotes

    - by Matt
    Hey all, I try to use single quotes as much as possible and I've noticed that I can't use \n in single quotes. I know I can just enter a newline literally by pressing return, but that screws up the indentation of my code.. Is there some ASCII character or something that I can type that will produce newline when I'm using single quotes? Thanks! Matt Mueller

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  • Get values of textareas generated dynamically

    - by Hulk
    In the below code,the textaraes are generated dynamically ,now how to get these values for validations in valid() function.. <script> function valid() { //get all textarea vales for validation } function add(col_det) { var row = '<tr>'; row += '<td>'; row += '<textarea rows = "8" cols = "8" class = "input" WRAP id="row_details'+r_count+'" name ="row_details'+r_count+'"></textarea>'; row += '</td>'; for (var i=0;i<col_det.length;i++) { row += '<td> <div id = "div_content_bold"> <textarea rows = "2" cols = "8" class = "input" id="c_details'+c_count+'" name="col_details'+l_count+'" WRAP ></textarea> </div> </td>'; } row += '<td></td>'; row += '</tr>'; return row; } $(document).ready(function() { var cnt = '<input type="text" name="title" id="title" ><br><br>'; cnt += '<table cellspacing="0" cellpadding="0" border="1" width="100%" id="l_table">'; cnt += '<tr>'; cnt += '<th width="30%">Category</th>'; cnt += headers(col_data); cnt += '<th width="10%">Grade obtained</th>'; cnt += '</tr>'; for(var i=0;i<criteria;i++) { cnt += add(col_data,i); } cnt += '</table>'; $('#content').append(cnt); }); </script> <form action="create/" method="post" name="aa"> <div id="content"></div> <table> <tr><td> <input type="submit" value="Save" id="Save" onclick="javascript:var ret=validate(row_c,c_count);return ret;"/></td></tr> Thanks....

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  • How to convert String to Java.sql.date and Java.sql.time

    - by Mr Morgan
    Hello If I have a method like this: public static String convertDateTimeToString(DateTime dt) { return dt.getDate() + " " + dt.getTime(); } Which takes a Datetime object of my own which contains a Java.sql.date and a Java.sql.time, what is the best way of reversing the process so that I can substring a Java.sql.date and a Java.sql.time from a string? Or if DateTime dt is a JodaTime DateTime object? If this can be done without reference to Java.util.date. Thanks Mr Morgan.

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  • Moq - How to mock a function call on a concrete object?

    - by dferraro
    Hello, How can I do this in Moq? Foo bar = new Foo(); Fake(bar.PrivateGetter).Return('whatever value') It seems I can only find how to mock an object that was created via the framework. I want to mock just a single method/property on a concrete object I've created... In TypeMock, I would just do Isolate.WhenCalled(bar.PrivateGetter).Returns('whatever value').. Any ideas?

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  • asp:Login control, remember me is not remembering me

    - by Gogster
    Hi all, I have an ASP.NET login control on a page, with the "Remember Me" checkbox displayed. I have checked in trace and the authentication cookie is being created, I have sliding expiration set and a timeout of 60000, yet when I return to the website the login is not being remembered. Any ideas where else I can check? Thanks, Darryl

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  • How is IObservable<double>.Average supposed to work?

    - by Dan Tao
    Update Looks like Jon Skeet was right (big surprise!) and the issue was with my assumption about the Average extension providing a continuous average (it doesn't). For the behavior I'm after, I wrote a simple ContinuousAverage extension method, the implementation of which I am including here for the benefit of others who may want something similar: public static class ObservableExtensions { private class ContinuousAverager { private double _mean; private long _count; public ContinuousAverager() { _mean = 0.0; _count = 0L; } // undecided whether this method needs to be made thread-safe or not // seems that ought to be the responsibility of the IObservable (?) public double Add(double value) { double delta = value - _mean; _mean += (delta / (double)(++_count)); return _mean; } } public static IObservable<double> ContinousAverage(this IObservable<double> source) { var averager = new ContinuousAverager(); return source.Select(x => averager.Add(x)); } } I'm thinking of going ahead and doing something like the above for the other obvious candidates as well -- so, ContinuousCount, ContinuousSum, ContinuousMin, ContinuousMax ... perhaps ContinuousVariance and ContinuousStandardDeviation as well? Any thoughts on that? Original Question I use Rx Extensions a little bit here and there, and feel I've got the basic ideas down. Now here's something odd: I was under the impression that if I wrote this: var ticks = Observable.FromEvent<QuoteEventArgs>(MarketDataProvider, "MarketTick"); var bids = ticks .Where(e => e.EventArgs.Quote.HasBid) .Select(e => e.EventArgs.Quote.Bid); var bidsSubscription = bids.Subscribe( b => Console.WriteLine("Bid: {0}", b) ); var avgOfBids = bids.Average(); var avgOfBidsSubscription = avgOfBids.Subscribe( b => Console.WriteLine("Avg Bid: {0}", b) ); I would get two IObservable<double> objects (bids and avgOfBids); one would basically be a stream of all the market bids from my MarketDataProvider, the other would be a stream of the average of these bids. So something like this: Bid Avg Bid 1 1 2 1.5 1 1.33 2 1.5 It seems that my avgOfBids object isn't doing anything. What am I missing? I think I've probably misunderstood what Average is actually supposed to do. (This also seems to be the case for all of the aggregate-like extension methods on IObservable<T> -- e.g., Max, Count, etc.)

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  • Efficient code to avoid circular references in c# object model

    - by Kumar
    I have an excel like grid where values can be typed referencing other rows To check for circular references when a new value is entered, i traverse the tree and create a list of values referenced thus far, if the current value is found in this list, i return an error thus avoiding a circular reference. This is infrequent enough where extreme performance is not an issue but... Question - is there a better way ? I'm told it's not the most optimal but no answer was provided so on to the experts @ SO :)

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  • Godaddy security exception

    - by stighy
    Hi at all. I can't resolve this issue. My web hoster, GoDaddy , return this error: Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. And i really don't know how to solve it. Are there Anyone with similar experience ? Thanks

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  • quick question about memory management in AS3

    - by TheDarkIn1978
    the following method will be called many times. i'm concerned the continuous call for new rectangles will add potentially unnecessary memory consumption, or is the memory used to produce the previous rectangle released/overwritten to accommodate another rectangle since it is assigned to the same instance variable? private function onDrag(evt:MouseEvent):void { this.startDrag(false, dragBounds()); } private function dragBounds():Rectangle { var stagebounds = new Rectangle(0 - swatchRect.x, 0 - swatchRect.y, stage.stageWidth - swatchRect.width, stage.stageHeight - swatchRect.height); return stagebounds; }

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  • How to fine tune a Membership Provider?

    - by Venemo
    After all the answers to my last question about fine-tuning turned out to be more useful than I expected, I thought that I would ask another similar Question about the MembershipProviders as well. Okay, so firstly, to clarify: I know what a Membership, Role, and Profile provider is, how to implement my own, and how to configure them, and most of the things about them. Implementing a role and profile provider is pretty straightforward, because they only require simple CRUD most of the time. (A single line of LINQ is enough for about half of the RoleProvider's methods.) However, the Membership provider is a differend beast. Many of you may realize that it violates the SR (Single Responsibility) principle, because it has to do EVERYTHING related to user management. While this leaves a lot of room for customizations, it has its downsides as well. There is no information on the Internet about what their EXACT expected behaviour is, such as when should they throw exceptions or simply return null, and stuff like that. I use this sample implementation for reference, but it also contains several contradictions. For example, it uses its own ValidateUser method for checking for credentials in the ChangePassword method. But the ValidateUser also updates the user's LastLoginDate to the current date. So, does the framework expect that I set it in my own provider as well, or is it simply a mistake in the sample? The other is: the ChangePassword method throws an exception every time when validating the new password, but CreateUser doesn't ever throw an exception, it simply returns false. And last, but not least: it counts the invalid password attempts of the user and locks them if it passes a threshold. While this is good, but it requires manual action to unlock the users. Is it a problem if my provider automatically unlocks the user after a certain amount of time? (EDIT) I almost forgot: the CreateUser method in the sample inserts the ID from the method parameter. I actually think this is bad practice, because I use inters with auto incement as IDs, so inserting them from some method parameter is not an option. Should I just ignore the parameter, or require that its value is null and throw an exception if it isn't? All in all, does ASP.NET have any assumptions about the behaviour of a MembershipProvider? Is there any documentation which describes when should I throw an exception or just return null? I also tried to find a set of generic unit tests which would provide some guidance about the expected behaviour, but no luck, I found plenty of articles about "Unit testing is good", and "How to unit test a MembershipProvider", but not one where there would be any actual tests. Thanks in advance for everyone!

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  • amfPHP Function Input Trouble

    - by she hates me
    Hello, I'm writing an amfPHP function which should take string input. It takes alphanumeric characters without a problem, but unfortunately it returns data as "2" if I send "2.UgnFl4kAWovazp_tVo6fHg__.86400.1260025200-571701419" as parameter. here is the function (real simple as you can see) function checkOpenSession($guid, $session_key) { return $session_key; }

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  • Why do I get a "Bad Gateway" error with my Perl CGI program on IIS?

    - by Eyla
    I'm trying to run sample Perl script on Windows 7 and I configured IIS 7 to allow ActivePerl to run but I'm getting this error: HTTP Error 502.2 - Bad Gateway The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are "Hello World. ". Module CgiModule Notification ExecuteRequestHandler Handler Perl Script (PL) Error Code 0x00000000 Requested URL http://localhost:80/hello.pl Physical Path C:\inetpub\wwwroot\hello.pl Logon Method Anonymous Logon User Anonymous and here is my Perl script: #!/usr/bin/perl print "Hello World.\n";

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  • Am I using EJBs properly?

    - by kgrad
    I am using a JEE6 stack including JPA 2.0, JSF 2.0, EJB 3.1 etc. The way my architecture is setup is the following: I have JPA annotated DAOs using hibernate as my JPA provider. I have JSF Managed beans which correspond to my facelet/xhtml pages. I have EJBs that handle all of my database requests. My XHTML pages have JSF EL which make calls to my Managed beans. My managed beans contain references to my DAO entities which are managed by EJBs. For example, I have a user entity which is mapped to a db table. I have a user EJB which handles all CRUD operations that return Users. I have a page that edits a user. The highlevel workflow would be: navigate to user edit page - EL calls a method located in the managed bean that loads a user. The method calls userEJB.loadUser(user) from the EJB to get the user from the database. The user is edited and submit - a function is called in the managed bean which calls a function in the EJB to save the user. etc. I am running into issues accessing my data within my JSF pages using EJBs. I am having a lot of problems with lazy initialization errors, which I believe is due to how I have set things up. For example, I have a Client entity that has a List of users which are lazily loaded. In order to get a client I call a method in my EJB which goes to the database, finds a client and returns it. Later on i wish to access this clients list of users, in order to do so i have to go back to the EJB by calling some sort of method in order to load those users (since they are lazily loaded). This means that I have to create a method such as public List<User> getUserListByClient(Client c) { c = em.merge(c); return c.getUserList(); } The only purpose of this method is to load the users (and I'm not even positive this approach is good or works). If i was doing session management myself, I would like just leave the session open for the entire request and access the property directly, this would be fine as the session would be open anyway, there seems to be this one extra layer of indirection in EJBs which is making things difficult for me. I do like EJBs as I like the fact that they are controlled by the container, pooled, offer transaction management for free etc. However, I get the feeling that I am using them incorrectly, or I have set up my JSF app incorrectly. Any feedback would be greatly appreciated. thanks,

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  • SQL Server Full Text Search Special character issue

    - by ManojTrek
    Hello, I have Full Text catalog created in SQL Server 2005, when I search the text like "Bolivia's History", it returns all the result matching to that, but if I use "Bolivias History", it does not return anything, I am very new to Full Text Search stuff, any lead how to ignore the special character ("'"), in Full Text Search? Thanks in Advance, Manoj

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  • Regex to match with digit in the string.

    - by Harikrishna
    I will have a different type of string(string will not have fixed format,they will be different every time) from them I want to remove some specific substring.Like the string can be OPTIDX 26FEB2009 NIFTY CE 2500 OPTIDX NIFTY 30 Jul 2009 4600.00 PE OPTSTK ICICIBANK 30 Jul 2009 700.00 PA I want to extract Rs.(digit) from those string and store it into one variable and then in those string there should not be Rs.(digit). What should be the regex for that ? EDIT private string ExtractingRupeesFromString(String str) { Match match = Regex.Match(cellRecord, @"(\d+(?:\.\d+)?)\D*$"); return match.Value.ToString(); }

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  • NHibernate query CreateCriteria

    - by Jacob
    Is it possible to chose what columns I want in return from Session.CreateCriteria() ? egz.: var x = session.CreateCriteria(); x.CreateAlias("EmployeePosition", "employeePosition"); x.Add(Restrictions.Eq("employeePosition.Name", "Developer")); and is there a way to add something like "select LastName" to avoid downloading the whole row.

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  • Excel MAXIF function or emulation?

    - by Andre Boos
    I have a moderately sized dataset in Excel from which I wish to extract the maximum value of the values in Column B, but those that correspond only to cells in Column A that satisfy certain criteria. The desired functionality is similar to that of SUMIF or COUNTIF, but neither of those return data that is necessary. There isn't a MAXIF function, so I ask the SO community: how do I emulate one?

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  • reverse this function

    - by ooo
    i have code that takes a csharp datetime and converts it into a long to plot in the "flot" graph. here is the code public static long GetJavascriptTimestamp(DateTime input) { TimeSpan span = new TimeSpan(DateTime.Parse("1/1/1970").Ticks); DateTime time = input.Subtract(span); return (long)(time.Ticks / 10000); } I now need an opposite function where i take this long value and get the csharp datetime object back. any idea if the above method can be reversed ?

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  • AttributeError HELP!

    - by C0d3r
    class Account: def __init__(self, initial): self.balance = initial def deposit(self, amt): self.balance = self.balance + amt def withdraw(self,amt): self.balance = self.balance - amt def getbalance(self): return self.balance a = Account(1000.00) a.deposit(550.23) a.deposit(100) a.withdraw(50) print a.getbalance() I get this error when I run this code.. AttributeError: Account instance has no attribute 'deposit'

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