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• Get UPN or email for logged in user in a .NET web application

  - by DrStalker

  I'm not a .NET developer, and I have a feeling this would be trivial for someone who is: I have a C# web application that makes user of the user credentials of the logged in user. Currently it uses the SID which comes from System.Security.Principal.WindowsIdentity.GetCurrent().User.Value I need to get either the users UPN login or email address (as defined in active directory) instead of the SID. GetCurrent() returns an object of type WindowsIdentity; looking in the details for WindowsIdentity Members: MSDN: WindowsIdentity Members I can't see anything that looks like it would give me either the UPN or email in there. How can I pull up that information to use, either by feeding the SID into some other function or calling something different in the first place.

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• "isnotnan" functionality in numpy, can this be more pythonic?

  - by Dragan Chupacabrovic

  Hello Everybody, I need a function that returns non-NaN values from an array. Currently I am doing it this way: >>> a = np.array([np.nan, 1, 2]) >>> a array([ NaN, 1., 2.]) >>> np.invert(np.isnan(a)) array([False, True, True], dtype=bool) >>> a[np.invert(np.isnan(a))] array([ 1., 2.]) Python: 2.6.4 numpy: 1.3.0 Please share if you know a better way, Thank you

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• Why don't these class attributes register?

  - by slypete

  I have a factory method that generates django form classes like so: def get_indicator_form(indicator, patient): class IndicatorForm(forms.Form): #These don't work! indicator_id = forms.IntegerField(initial=indicator.id, widget=forms.HiddenInput()) patient_id = forms.IntegerField(initial=patient.id, widget=forms.HiddenInput()) def __init__(self, *args, **kwargs): forms.Form.__init__(self, *args, **kwargs) self.indicator = indicator self.patient = patient #These do! setattr(IndicatorForm, 'indicator_id', forms.IntegerField(initial=indicator.id, widget=forms.HiddenInput())) setattr(IndicatorForm, 'patient_id', forms.IntegerField(initial=patient.id, widget=forms.HiddenInput())) for field in indicator.indicatorfield_set.all(): setattr(IndicatorForm, field.name, copy(field.get_field_type())) return type('IndicatorForm', (forms.Form,), dict(IndicatorForm.__dict__)) I'm trying to understand why the top form field declarations don't work, but the setattr method below does work. I'm fairly new to python, so I suspect it's some language feature that I'm misunderstanding. Can you help me understand why the field declarations at the top of the class don't add the fields to the class? In a possibly related note, when these classes are instantiated, instance.media returns nothing even though some fields have widgets with associated media. Thanks, Pete

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• OpenMP timer doesn't work on inline assembly code?

  - by Brett

  I'm trying to compare some code samples for speed, and I decided to use the OpenMP timer since I'll eventually be multi threading the code. The timer works great on two of my four code snippets, but not on the other two start=omp_get_wtime(); /*code here*/ finish = omp_get_wtime() - start_time; The four code here sections are serial code, xmmintrin.h code, and two inline assembly codes. The serial and xmminstrin.h code are able to be timed, but the inline assembly codes returns -1.#IND00 for a time. I can't seem to figure out why this is? Thanks for any help or suggestions!

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• How to implement List, Set, and Map in null free design?

  - by Pyrolistical

  Its great when you can return a null/empty object in most cases to avoid nulls, but what about Collection like objects? In Java, Map returns null if key in get(key) is not found in the map. The best way I can think of to avoid nulls in this situation is to return an Entry<T> object, which is either the EmptyEntry<T>, or contains the value T. Sure we avoid the null, but now you can have a class cast exception if you don't check if its an EmptyEntry<T>. Is there a better way to avoid nulls in Map's get(K)? And for argument sake, let's say this language don't even have null, so don't say just use nulls.

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• [Newbie] How to join mysql tables

  - by Ivan

  I've an old table like this: user> id | name | address | comments And now I've to create an "alias" table to allow some users to have an alias name for some reasons. I've created a new table 'user_alias' like this: user_alias> name | user But now I have a problem due my poor SQL level... How to join both tables to generate something like this: 1 | my_name | my_address | my_comments 1 | my_alias | my_address | my_comments 2 | other_name | other_address | other_comments I mean, I want to make a "SELECT..." query that returns in the same format as the "user" table ALL users and ALL alias.. Something like this: SELECT user.* FROM user LEFT JOIN user_alias ON `user`=`id` but it doesn't work for me..

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• Get the full URI from the href property of a link

  - by Savageman

  Hello SO, I would like to have a confirmation on some point. My goal is to always get the same string (which is the URI in my case) while reading the href property from a link. Example: <a href="test.htm" /> with base_url = http://domain.name/ <a href="../test.htm" /> with base_url = http://domain.name/domain/ <a href="http://domain.name/test.htm" /> with base_url = any folder from http://domain.name/ I need to get http://domain.name/test.htm from the 3 situations above (or any other identical string). After some tests, it appears that my_a_dom_node.href always return the full-qualified URI, including the http://domaine.name, which should be okay for what I want. jQuery has a different behaviour and $(my_a_dom_node).attr('href') returns the content (text) that appears inside the HTML. So my trick is to use $(my_a_dom_node).get(0).href to get the full URI. The question is: can I rely on this?

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• Getting ID of an instance newly launched with ec2-api-tools

  - by Jonik

  I'm launching an EC2 instance, by invoking ec2-run-instances from simple a bash script, and want to perform further operations on that instance (e.g. associate elastic IP), for which I need the instance id. The command is something like ec2-run-instances ami-dd8ea5a9 -K pk.pem -C cert.pem --region eu-west-1 -t c1.medium -n 1, and its output: RESERVATION r-b6ea58c1 696664755663 default INSTANCE i-945af9e3 ami-dd8ea5b9 pending 0 c1.medium 2010-04-15T10:47:56+0000 eu-west-1a aki-b02a01c4 ari-39c2e94d In this example, i-945af9e3 is the id I'm after. So, I'd need a simple way to parse the id from what the command returns - how would you go about doing it? My AWK is a little rusty... Feel free to use any tool available on a typical Linux box. (If there's a way to get it directly using EC2-API-tools, all the better. But afaik there's no EC2 command to e.g. return the id of the most recently launched instance.)

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• Ho to launch Choose File dialog on Mac

  - by Manish

  Hi All, I am using LSOpenItemsWithRole() to open any file from my appication. It works fine for all files which has a default application to get opened on Mac, but for the files which cannot be open with any default application this method returns an error kLSApplicationNotFoundErr and does nothing. For such cases I want my application to launch the "Choose Application" dialog box, so that end user can choose any application from there to open the file. This dialog box pops up whenever any such file is directly opened by double clickig. Is there is any direct API call to do the same? any help will be appreciated, Thanks in advance! Manish

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• F# pattern matching

  - by Roger Alsing

  What would be the most effective way to express the following code? match cond.EvalBool() with | true -> match body.Eval() with | :? ControlFlowModifier as e -> match e with | Break(scope) -> e :> obj //Break is a DU element of ControlFlowModifier | _ -> next() //other members of CFM should call next() | _ -> next() | false -> null cond.EvalBool returns a boolean result where false should return null and true should either run the entire block again (its wrapped in a func called next) or if the special value of break is found, then the loop should exit and return the break value. Is there any way to compress that block of code to something smaller?

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• How can I use TMask when the mask contains "["?

  - by Lobuno

  I have been experimenting with TMask in Delphi 2010 and it seems to work as expected except in one situation: when the mask name contains [ or ] the mask always seem to return false. For example: var MaskObj : TMask; begin MaskObj:= TMask.Create('c:\[test]\*'); try Result:= MaskObj.Matches('c:\[test]\text'); finally FreeAndNil(MaskObj); end; end; returns false. ... Yes, [ and ] are legal characters in file name. So if I want to exclude for example all files in c:[test]*, what could I do here? My only solution is to do a StringReplace if [ is detected, but this will be slow for a large number of files: if (pos('[', Mask)>0) then begin mask:= ReplaceString(Mask, '[','_', etc... // and do the same for the file name--- end; Is there any other approach?

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• Facebook Graph and PHP API

  - by Wes

  I've been working at this for a few hours, but the poor documentation is of no help. All I want to do is grab the data that exists at https://graph.facebook.com/cocacola/ as an example, and I cant even do that. I'm using the latest php API from facebook. This is my code, which returns nothing: <?php require '../src/facebook.php'; // Create our Application instance. $facebook = new Facebook(array( 'appId' => '254752073152', 'secret' => '904270b68a2cc3d54485323652da4d14', 'cookie' => true, )); $coke = $facebook->api('/cocacola'); echo '<pre>'; print_r($coke); echo '</pre>'; Any idea?

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• Trilateration using 3 latitude and longitude points, and 3 distances

  - by nohat

  There exists an unknown target location (latitude and longitude co-ordinates). I have 3 latitude and longitude co-ordinate pairs and for each pair a distance in kilometers to the target location. How can I calculate the co-ordinates of the target location? For example, say I have the following data points 37.418436,-121.963477 0.265710701754km 37.417243,-121.961889 0.234592423446km 37.418692,-121.960194 0.0548954278262km What I'd like is what would the guts of the function that takes that as input and returns 37.417959,-121.961954 as output look like? I understand how to calculate the distance between two points, from http://www.movable-type.co.uk/scripts/latlong.html I understand the general principle that with three circles you get exactly one point of overlap. What I'm hazy on is the math needed to calculate that point with this input.

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• ServletContext getResource not working

  - by David

  I'm trying to use ServletContext.getResource to retrieve a java.net.url reference to an image file (which I will then include in a PDF library using iText). When I use ServletContext.getRealPath("picture.jpg"), I get back a string URL. However, getResource always returns null. Example 1: String picture = ServletContext.getRealPath("picture.jpg"); // picture contains a non-null String with the correct path URL pictureURL = ServletContext.getResource(picture); // pictureURL is always null Example 2: URL pictureURL = ServletContext.getResource("picture.jpg"); // pictureURL is always null So what is the correct way to build a java.net.URL object pointing to a file in my webapps folder? Why does getRealPath work but not getResource? In case it helps at all, here is my folder structure webapps - mySite - picture.jpg Does my picture need to be stored in either WEB-INF or WEB-INF/classes to be read by getResource?

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• Understanding how to inject object dependencies

  - by Hans

  I have an object that loads an instance of another object in a method. $survey = new survey; $question = new question($survey); $question-load($question_id); class question { public function __construct(&$survey) { $this-survey = $survey; } public function load ($id) { // now a question is loaded // want to load the survey that this question is in $this->survey->load($this->get('survey_id')); // ** survey_id is a field in the questions table // now $this->survey object has all the info about the survey this question is in } private function get($name) { // returns $name, if isset() from array that load() sets } } This is frying my brain, though, because it seems like $survey should come into $response already being a complete object. But, how do I do that, if I don't know what survey_id to load until I'm in the object? I am revamping a site and the most complex part is littered with this issue. TIA - Hans.

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• PHP: How to cast object to inherited class?

  - by andreyvlru

  I'd like to inherit PDOStatement class and use it in my website scripts. But I am frustrated how to get required object. PDO::query returns only direct PDOStatement object and looks like there are no other method to create PDOStatement object or inherited class. Initially i thought to move PDOStatement object to constructor of inherit class Something like that: $stmt = PDO -> query("select * from messages"); $messageCollection = new Messaging_Collection($stmt); But how to make instance of PDOStatement to inherited object (Messaging_Collection). It is a big question for me. class Messaging_Collection extends PDOStatement { public function __construct(PDOStatement $stmt) { //there i should to transform $stmt to $this // direct $this = $stmt is not possible // is there other right way? }

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• Push notification not working for the production environment

  - by Marcelo

  I have spent a whole day on this already but still didn't go anywhere. When I run my app in the development mode, I can get the push messages I send to myself thru PushMeBaby without a problem. However, when I try to test it in the production environment, I cannot get any push. I re-generated all the certificates and provisioning profiles, used the aps_production_identity.cer as the certificate for push, changed the ssl to gateway.push.apple.com, and did a release build for the app, but still couldn't get it to work. I found that in PushMeBaby, the line result = SSLHandshake(context); returns error -9844. Does it mean that something is wrong with the aps_production_identity.cer file? This is driving me nuts, can somebody offer a little help? Much appreciated!!!

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• Value object getter

  - by sarah xia

  Hi, I've got a value object, which stores info for example amount. The getAmount() getter returns amount in cents. However in various places, we need to get amount in dollar. There are 2 approaches I can think of: write a convert method and place it in a utility class. add a getAmountInDollar() getter in the value object. I prefer the second approach. What do you think? What are pros and cons of both approaches?

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• Convert Option[Object] to Option[Int] Implicitly

  - by wheaties

  I'm working with legacy Java code which returns java.lang.object. I'm passing it into a function and I'd like to do some implicit conversions as such: implicit def asInt( _in:Option[Object] ) = _in asInstanceOf[ Option[Int] ] implicit def asDouble( _in:Option[Object] = _in asInstanceOf[ Option[Double] ] private def parseEntry( _name:String, _items:Map[String,Object] ) = _name match{ case docName.m_Constants => new Constants( _items get( Constants m_Epsilon ), _items get( Constant m_Rho ), _items get( Constants m_N ) ) Technically it goes on but I keep getting the same errors: expected Int, Option[Object] found. How have I done my implicits wrong? I was hoping it would do the transformation for me instead of me having to write "asInstanceOf" each and every time.

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• Getting a specific number of JSON items with jQuery from tumblr feed

  - by Kevin Whitaker

  Hello all. I'm trying to populate a page with X entries from my tumblr feed, and I'm wondering how I can only pull that X number from the JSON object it returns. Here's my code, pulled from another Stack Overflow post and modified: //Tumblr retrieval $.getJSON("http://tumblr-address/api/read/json?callback=?", function(data) { $.each(data.posts, function(i,posts){ var title = this["regular-title"]; var type = this.type; var date = this.date; var url = this["url-with-slug"]; $('#sideRail ol').prepend('<li><p><a href=' +url +'>' + title + '</a></p><p>' + date + '</p></li>'); }); }); I've tried using a while loop with a counter, but it just repeats everything X times before moving on to the next item in the list. Thanks for any help.

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• Explore a COM Object in PHP

  - by shaiss

  What would be the proper way to explode a COM object for debugging? I have a 3rd party function that returns a multilevel object. The documentation is non existant, so I'd like to be able to echo everything out of the object or debug it in Komodo IDE. Komodo just says Object and nothing else. Maybe convert to array? I know some of the existing options such as $com->Status, but there are more variables returned that I'd like to know what they are.

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• Dynamic type for List<T>?

  - by Brett

  Hi All, I've got a method that returns a List for a DataSet table public static List<string> GetListFromDataTable(DataSet dataSet, string tableName, string rowName) { int count = dataSet.Tables[tableName].Rows.Count; List<string> values = new List<string>(); // Loop through the table and row and add them into the array for (int i = 0; i < count; i++) { values.Add(dataSet.Tables[tableName].Rows[i][rowName].ToString()); } return values; } Is there a way I can dynamically set the datatype for the list and have this one method cater for all datatypes so I can specify upon calling this method that it should be a List<int or List<string> or List<AnythingILike>? Also, what would the return type be when declaring the method? Thanks in advance, Brett

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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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• JsonResult shows up a file download in browser

  - by joshb

  I'm trying to use jquery.Ajax to post data to an ASP.NET MVC2 action method that returns a JsonResult. Everything works great except when the response gets back to the browser it is treated as a file download instead of being passed into the success handler. Here's my code: Javascript: <script type="text/javascript"> $(document).ready(function () { $("form[action$='CreateEnvelope']").submit(function () { $.ajax({ url: $(this).attr("action"), type: "POST", data: $(this).serialize(), dataType: "json", success: function (envelopeData) { alert("test"); } }); }); return false; }); </script> Action method on controller: public JsonResult CreateEnvelope(string envelopeTitle, string envelopeDescription) { //create an envelope object and return return Json(envelope); } If I open the downloaded file the json is exactly what I'm looking for and the mime type is shown as application/json. What am I missing to make the jquery.ajax call receive the json returned?

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• NSNumberFormatter weirdness with NSNumberFormatterPercentStyle

  - by rein

  Hi, I need to parse some text in a UITextField and turn it into a percentage. Ideally, I'd like the user to either type something like 12 or 12% into the text field and have that be parsed into a number as a percentage. Here's what's weird. The number formatter seems to not like 12 and seems to divide 12% by 10000 instead of 100: NSNumberFormatter *formatter = [[[NSNumberFormatter alloc] init] autorelease]; [formatter setNumberStyle:NSNumberFormatterPercentStyle]; NSNumber *n1 = [formatter numberFromString:@"12"]; NSNumber *n2 = [formatter numberFromString:@"12%"]; NSLog(@"n1 = %@", n1); // n1 = (null) NSLog(@"n2 = %@", n2); // n2 = 0.0012 How do I get the formatter to return 0.12 as expected? EDIT: it seems to only happen if the formatter fails first. If the formatter does not fail it returns 0.12 as expected. Strange.

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