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  • Extending struts 2 "property" data tag

    - by John B.
    Hi, We are currently developing a project with Struts2. We have a module on which we display a large amount of data on read-only fields from a group of beans via the "property" Struts 2 data tag (i.e. <s:property value="aBeanProperty" /) on a jsp file. In some cases most of the fields might come empty, so a blank is being displayed on screen. Our customer is now requesting us to display default string (i.e. "N/A") whenever a property comes empty, so that it is displayed in place of the blank spaces currently shown. We are looking for a way to achieve this in a clean and maintainable way. The 'property' tag comes with a 'default' attribute on which one can define a default value in cases when the accessed property comes as null. However, most of our properties are empty strings, therefore it does not work in our case. Another solution we are thinking of is to define a base class for all of our beans, and define a util method which will validate if a string is null or empty and then return the default value. Then we would call this method from each bean getter. And yes this would be tiresome and kind of ugly :), therefore we are holding out on this one in case of a better solution. Now, we have in mind a solution which we think would be the best but have not had luck on how implement it. We are planning on extending the 'property' tag some way, defining a new 'default' attribute so that besides working on null properties, it also do so on empty strings ("", " ", etc). Therefore we would only need to replace the original s:property tag with our new custom tag, and the desired result would be achieved without touching java code. Do you have an idea on how to do this? Also, any other clever solution (maybe some sort of design pattern?) on how to default the values of a large amount of property beans are welcome too! (Or maybe, even there might be some tag that does this already in Struts2??) Thanks in advance.

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  • Hiding What Site You're On (Branding Issues)

    - by John
    Here's the scenario: I have a private site that, once logged on, will display different information depending on the attributes of your account: the pages are branded differently based upon what company you are associated with. The problem is the companies linking to this site want everything to be displayed as their own brand, and do not want to see my brand anywhere, especially in the URL (i.e. from www.theirbrand.com they do not want to have links to www.mybrand.com). Is there an elegant solution to this? Is the best option to add a page on www.theirbrand.com that contains an iframe with a source of www.mybrand.com (I'm not sure if that would interfere with back/forward navigation, etc), or is there a better way?

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  • R: How to replace elements of a data.frame?

    - by John
    I'm trying to replace elements of a data.frame containing "#N/A" with "NULL", and I'm running into problems: foo <- data.frame("day"= c(1, 3, 5, 7), "od" = c(0.1, "#N/A", 0.4, 0.8)) indices_of_NAs <- which(foo == "#N/A") replace(foo, indices_of_NAs, "NULL") Error in [<-.data.frame(*tmp*, list, value = "NULL") : new columns would leave holes after existing columns I think that the problem is that my index is treating the data.frame as a vector, but that the replace function is treating it differently somehow, but I'm not sure what the issue is?

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  • Using JQuery to Style form elements

    - by John
    Hi, I've seen jquery used to change a form select drop down box in to a 'pretty' drop down list widget. I can't remember where I saw this but does anyone have any links or example code which show examples of how to use jquery to style form elements? I'd prefer it if it was code rather than a built in plug in. Thanks

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  • How to test processing a list of files within a directory using RSpec?

    - by John Topley
    I'm pretty new to the world of RSpec. I'm writing a RubyGem that processes a list of files within a specified directory and any sub-directories. Specifically, it will use Find.find and append the files to an Array for later output. I'd like to write a spec to test this behaviour but don't really know where to start in terms of faking a directory of files and stubbing Find.find etc. This is what little I have so far: it "should return a list of files within the specified directory" do end Any help much appreciated!

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  • Can you ask Google how common a search is?

    - by John
    I'm not familiar with Google Analytics but I think you can use it to see how many people get to your site using different search strings. But if you don't yet have the site, can you simply ask Google how popular a search is? For instance say you're choosing a new product name/slogan/etc. First of all, you want to see if that is already very crowded, which is easy through just Googling it. But now you might want to see if anyone is actually searching for this... an ideal situation would be to find a search-string lots of people are using, which doesn't put your competitors on the #1 spot. Is this possible? Not exactly programming-related, but closely related to web-development IMO... please vote to close if you disagree, I won't be offended!

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  • Lambda expression will not compile

    - by John Soer
    I am very confused. I have this lamba expression: tvPatientPrecriptionsEntities.Sort((p1, p2) => p1.MedicationStartDate .Value .CompareTo(p2.MedicationStartDate.Value)); Visual Studio will not compile it and complains about syntax. I converted the lamba expression to an anonymous delegate as so: tvPatientPrecriptionsEntities.Sort( delegate(PatientPrecriptionsEntity p1, PatientPrecriptionsEntity p2) { return p1.MedicationStartDate .Value .CompareTo(p2.MedicationStartDate.Value); }); and it works fine. The project uses .NET 3.5 and I have a reference to System.Linq.

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  • JIRA: Generating per-user time report?

    - by John
    Sorry if SO is not the best place, but I have time-tracking enabled in JIRA and want to be able to generate a time-report for each user over a given date range. The only time-tracking report option I have is very limited and doesn't do what I want, is it possible through standard functionality or a free plugin perhaps?

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  • Ajax Code to run PHP query After Facebook Like Button is Clicked

    - by John
    I have the PHP below on a file called fblike.php. On another file, I have the Facebook Like button. The Like button functions. I would like to run the code below when the Facebook Like button is clicked. I know that FB.Event.subscribe('edge.create', function(response) {} is supposed to run whenever the Like button is clicked. I know that I am probably supposed to use Javascript and maybe Ajax to cause the PHP on fblike.php to run. But after multiple tries, I can't get it to work. What is the specific Ajax code that I could include within the Facebook Event? Do I need to do anything to the Like button code to allow the Facebook Event to work? $submissionid = $_POST['submissionid']; $uid = $_POST['uid']; mysql_connect("server", "username", "password") or die(mysql_error()); mysql_select_db("database") or die(mysql_error()); $q = "INSERT INTO fblikes VALUES (NULL, '$submissionid', '$uid', NULL)"; $r = mysql_query($q); if($r) { echo "Success!"; } elseif(!$r) { echo "Failed!"; }

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  • What's the best way to stop multiple instances of a Windows app being launched?

    - by John
    Many Windows apps (like Skype or MSN for instance) don't let you start multiple instances, rather trying to run it a 2nd time just leaves the existing version running. Is this typically done in some simple way - the start-menu shortcut is a 'wrapper' app around the main app - or is there some registry magic you can do to delegate the problem to Windows itself? Specifically dealing with Win32 here (unmanaged C++) but happy to hear more general solutions as long as they are workable on Windows XP or alter.

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  • Is this a safe way to reference objects in JavaScript?

    - by John
    If I were to define two objects myDataStore and myDrawer something like this: var myDataStore = function(myObjectRef) { this.myInternalObject = myObjectRef; }; var myDrawer = function(myObjRef) { this.myInternalObject = myObjectRef; }; And if I were to create an object like so: (function(){ var myObject = window.myObject = function(){ this.dataStore = new myDataStore(this); this.drawer = new myDrawer(this); } })(); Then myObject.dataStore.myInternalObject, and myObject.drawer.myInternalObject, would simply be pointers back to the original 'myObject' - not taking up any additional memory in the browser. Yes? I am interested in implementing techniques like this - as it makes it easy for objects to communicate with each other.

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  • form.has_errors tag not working

    - by John
    Hello, Im using Django 1.2.3. I have login functionality in my site using django.contrib.auth.views.login. The user is able to login after entering correct username and password. But, form.has_errors is not working i.e. if the login credentials entered are incorrect i dont see the error message. My login.html in templates/registration is as follows : <html> <head> <title>Login</title> </head> <body> <h1>User Login</h1> {% if form.has_errors %} <p>Your username and password didn't match. Please try again.</p> {% endif %} <form method="post" action="."> {% csrf_token %} <p><label for="id_username">Username:</label> {{ form.username }}</p> <p><label for="id_password">Password:</label> {{ form.password }}</p> <input type="hidden" name="next" value="/" /> <input type="submit" value="login" /> </form> </body> </html> Any way to fix this problem? Please Help Thank You.

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  • simplify in declaring variables value in php

    - by Robert John Concepcion
    $jan5 = 0; $feb5 = 0; $mar5 = 0; $apr5 = 0; $may5 = 0; $jun5 = 0; $jul5 = 0; $aug5 = 0; $sep5 = 0; $oct5 = 0; $nov5 = 0; $dec5 = 0; $jan4 = 0; $feb4 = 0; $mar4 = 0; $apr4 = 0; $may4 = 0; $jun4 = 0; $jul4 = 0; $aug4 = 0; $sep4 = 0; $oct4 = 0; $nov4 = 0; $dec4 = 0; $jan3 = 0; $feb3 = 0; $mar3 = 0; $apr3 = 0; $may3 = 0; $jun3 = 0; $jul3 = 0; $aug3 = 0; $sep3 = 0; $oct3 = 0; $nov3 = 0; $dec3 = 0; this is the most time consuming code when i try to make for example i want the default value of $jan5 is equal to zero.. can some one teach me how to make this short? thank you so much for reading $date = 'smi_initialdate'; $level = 'smi_level'; $year = '2012'; $result1 = mysql_query("SELECT *, DATE_FORMAT( $date, '%m' ) As monthz FROM eis_mngt_sales_iti WHERE year($date) = '$year' ORDER BY $date"); while($row=mysql_fetch_array($result1)) { $count++; if($row['smi_level']=='5star') { if($row['monthz']==1) { $jan++; }elseif($row['monthz']==2) { $feb++; }elseif($row['monthz']==3) { $mar++; }elseif($row['monthz']==4) { $apr++; }elseif($row['monthz']==5) { $may++; }elseif($row['monthz']==6) { $jun++; }elseif($row['monthz']==7) { $jul++; }elseif($row['monthz']==8) { $aug++; }elseif($row['monthz']==9) { $sep++; }elseif($row['monthz']==10) { $oct++; }elseif($row['monthz']==11) { $nov++; }elseif($row['monthz']==12) { $dec++; } } } i decide to put this $jan5 = 0;$feb5 = 0;$mar5 = 0;$apr5 = 0;$may5 = 0;$jun5 = 0;$jul5 = 0; so that if the data did not pass to this condition if($row['smi_level']=='5star') they have the return value of zero(0). so that my output can adapt in this code [<?php echo$jan5.",".$feb5.",".$mar5.",".$apr5.",".$may5.",".$jun5.",".$jul5.",".$aug5.",".$sep5.",".$oct5.",".$nov5.",".$dec5; ?] if a dont use the above code the $jan5 = 0;$feb5 = 0;$mar5 = 0;$apr5 = 0;$may5 = 0;$jun5 = 0;$jul5 = 0;................ when i echo or print it i look like this 1,2,5,11,12 but with the use of that(the first sample code above) the output will be 1,0,0,0,0,0,0,1,2,5,11,12. thank, sorry if this became confusing, sorry about my grammar

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  • Difference between [object variable] and object.variable in Obj-C?

    - by John Smith
    I was working on a program today and hit this strange bug. I had a UIButton with an action assigned. The action was something like: -(void) someaction:(id) e { if ([e tag]==SOMETAG) { //dostuff } } What confuses me is that when I first wrote it, the if line was if (e.tag==SOMETAG) XCode refused to compile it, saying error: request for member 'tag' in 'e', which is of non-class type 'objc_object*' but I thought the two were equivalent. So under what circumstances are they not the same?

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  • Why is [date] + [time] non-deterministic in SQL Server 2008?

    - by John Gietzen
    I'm trying to do the following for my IIS logs table: ALTER TABLE [W3CLog] ADD [LogTime] AS [date] + ([time] - '1900-01-01') PERSISTED However, SQL Server 2008 tells me: Computed column 'LogTime' in table 'W3CLog' cannot be persisted because the column is non-deterministic. The table has this definition: CREATE TABLE [dbo].[W3CLog]( [Id] [bigint] IDENTITY(1,1) NOT NULL, ... [date] [datetime] NULL, [time] [datetime] NULL, ... ) Why is that non-deterministic? I really need to index that field. The table currently has 1598170 rows, and it is a pain to query if we can't do an index seek on the full time. Since this is being UNION'd with some other log formats, we can't very easily just use the two columns separately.

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