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• Intersecting boundaries with lucene

  - by Silvio Donnini

  I'm using Lucene, and I'm trying to find a way to index and retrieve documents that have a ranged property. For example I have: Document 1: Price:[30 TO 50] Document 2: Price:[45 TO 60] Document 3: Price:[60 TO 70] And I would like to search for all the documents whose ranges intersect a specific interval, in the above example, if I search for Price in [55 TO 65] I should get Document 2 and Document 3 as results. I don't think NumericRangeQueries alone would do the trick, I need to work on the index with something similar to R-trees, but are they implemented in Lucene? Also, I suppose that what I need should be a subclass of MultiTermQuery, because the query Price in [55 TO 65] has two boundaries, but I don't see anything suitable among MultiTermQuery's subclasses. Any help is appreciated, thanks, Silvio P.S. I'm using Lucene 2.9.0, but I can update to the latest release if needed.

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• Wunderground and UTC Offset

  - by Brandon

  I am consuming the international weather forecasts via Wunderground's XML API: http://wiki.wunderground.com/index.php/API_-_XML Looking at an output for Kabul, Afghanistan for instance: http://api.wunderground.com/auto/wui/geo/ForecastXML/index.xml?query=OAKB I notice that there is no UTC offset. The closest that I can see is this: <tz_short>AFT</tz_short> Which identifies the current TimeZone is AFT. The problem I see is that there is no universally accepted time zone abbreviations, so I cannot take these abbreviations and look up and offset from C#'s TimeZoneInfo objects. Is there a listing of Wunderground's Time Zones abbreviations/names/offsets so I can map their Time Zones to the TimeZoneInfo objects, or is there a better way to get this information? I will need to use the TimeZoneInfo so I can calculate daylight savings time for different locations internationally.

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• Tokenizer for full-text

  - by user72185

  This should be an ideal case of not re-inventing the wheel, but so far my search has been in vain. Instead of writing one myself, I would like to use an existing C++ tokenizer. The tokens are to be used in an index for full text searching. Performance is very important, I will parse many gigabytes of text. Edit: Please note that the tokens are to be used in a search index. Creating such tokens is not an exact science (afaik) and requires some heuristics. This has been done a thousand time before, and probably in a thousand different ways, but I can't even find one of them :) Any good pointers? Thanks!

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• htaccess handler

  - by Steve

  Hi Everyone, I have strange problem that need help. It is about rewrite using apache. Here my .htaccess content file: Options +FollowSymLinks ## This is an example .htaccess-file ## To get everything automatically parsed, the following line is needed #set link auto on ##From now on, every RewriteRule gets recognised. RewriteEngine on RewriteRule captcha(\.html){0,1}$ captcha.php [QSA,L] RewriteCond %{SCRIPT_FILENAME} !-s RewriteCond %{SCRIPT_FILENAME} !-d RewriteCond %{SCRIPT_FILENAME} !-f Rewriterule (.*) handler.php ##You can also change the text before the real link by the following line With this rule, I am hoping that all request except there is exists in file or directory will be directed to my custom handler: handler.php. Everyting just fine as expected but this case not: http://../test/form_login/query=%2Ftest%2Findex.php%3Fpage%3Dform& Root url: /test/, form_login is not file or directory index.php is exists in the root. Apache response with : 404 Page Not Found Thanks for any of your help. Regards, Steve

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• Why is Yahoo Indexing Bot considered as "evil"?

  - by bigstylee

  After reading and commenting on this question PHP Library for Keeping your site index by Google, Bing, etc, I was curious to look at StackOverFlow's sitemap. This returned a 404 error which I am guessing is just a protected page by determining if your are a Index Bot or simply doesnt exists. This then lead me to look at the robots.txt for StackOverFlow. I was surprised to see the comment "Yahoo bot is evil" along with a couple other Indexing bots (Spinn3r and KSCrawler) . I am unfamilular with Spinn3r and KSCrawler but my question is, why are these bots (particular Yahoo) considered as evil? Surely any and all indexing of any Search Engine is a good thing?

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• Tables with no Primary Key

  - by Matt Hamilton

  I have several tables whose only unique data is a uniqueidentifier (a Guid) column. Because guids are non-sequential (and they're client-side generated so I can't use newsequentialid()), I have made a non-primary, non-clustered index on this ID field rather than giving the tables a clustered primary key. I'm wondering what the performance implications are for this approach. I've seen some people suggest that tables should have an auto-incrementing ("identity") int as a clustered primary key even if it doesn't have any meaning, as it means that the database engine itself can use that value to quickly look up a row instead of having to use a bookmark. My database is merge-replicated across a bunch of servers, so I've shied away from identity int columns as they're a bit hairy to get right in replication. What are your thoughts? Should tables have primary keys? Or is it ok to not have any clustered indexes if there are no sensible columns to index that way?

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• Git - switching between branches in the middle of work

  - by Art

  For various reasons (code review mostly) I need to switch from current development branch to other branches quite often. Currently, I use either 'git stash' to shelve the uncommitted changes, checkout other branch, then switch back and do 'git stash apply' However, sometimes I'd have some newly added files there, which are not tracked. Unfortunately, stashing does not affect them. In this case I'd have to add them to the index and stash. What I am looking here for is a workflow where I'd have to perform a minimal set of actions to switch the branches, preferably avoiding adding of files into the index.

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• .Net Regular expression - how to do an exact match exclusion on a full string?

  - by Nathan Ridley

  I need a .Net regular expression that matches anything OTHER than the exact full string match specified. So basically: ^Index$ ... is the only exclusion I care about. Strings can start with, finish with or contain "Index", but not match exactly. My brain doesn't seem to be working today and I'm failing to work this one out. EDIT The answer MUST be via the pattern itself, as I am passing an argument to a third party library and do not have control over the process other than via the Regex pattern.

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• Confusion about MVC Routes

  - by yang

  What is the problem below? routes.MapRoute( "Default2", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = "test" } // Parameter defaults ); routes.MapRoute( "Default1", // Route name "{controller}/{action}/{name}", // URL with parameters new { controller = "Home", action = "Report", name = "" } // Parameter defaults ); When I navigate to /home/index "id" parameter takes the default value of "test" but when I navigate to home/report the name parameter is null. In short, if the route definition is the first in the route table, then the parameter takes its default value. But the others below don't.

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• rubyCAS-client serviceValidation uri questions.

  - by ted-gehling

  php code works with this url but the rubyCAS-Client gem's `validate_service_ticket()' seems to call an SSL Validation on this url which returns an error message. 'OpenSSL::SSL::SSLError in CassersController#index' ||'SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed' ---enviroment.rb--- require 'casclient' require 'casclient/frameworks/rails/filter' CASClient::Frameworks::Rails::Filter.configure( :cas_base_url => "https://auth.foo.com", :validate_url => "https://auth.foo.com/serviceValidate" ) ---casser_controller.rb--- class CassersController < ApplicationController require 'casclient' require 'casclient/frameworks/rails/filter' before_filter CASClient::Frameworks::Rails::Filter def index @username = session[:cas_user] end end Possibly just another requirement I need to make or a config file that needs changed, but any help about this error would be appreciated.

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• Why does the jQuery on this page work for Internet Explorer 8, but nothing else?

  - by Ben McCormack

  I made a web page that uses jQuery: http://benmccormack.com/demo/MichaelMassPsalm/Psalm16Mode5.html When you change the selection in the combo box from Higher Key to Lower Key, all of the music images are supposed to change their source to be images that represent the lower key signature. This works great in IE8, but it won't work in Safari, Firefox, or Chrome. Why not? Here's the jQuery code that I'm using: $(document).ready(function () { $("#musicKey").change(function (event) { if ($("#musicKey").val() * 1) { $("img[src*='Low'").each(function (index) { $(this).attr("src", $(this).attr("src").replace("Low", "High")); }); } else { $("img[src*='High'").each(function (index) { $(this).attr("src", $(this).attr("src").replace("High", "Low")); }); } }); });

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• redirectToAction results in null model

  - by Maslow

  I have 2 actions on a controller: public class CalculatorsController : Controller { // // GET: /Calculators/ public ActionResult Index() { return RedirectToAction("Accounting"); } public ActionResult Accounting() { var combatants = Models.Persistence.InMemoryCombatantPersistence.GetCombatants(); Debug.Assert(combatants != null); var bvm = new BalanceViewModel(combatants); Debug.Assert(bvm!=null); Debug.Assert(bvm.Combatants != null); return View(bvm); } } When the Index method is called, I get a null model coming out. When the Accounting method is called directly via it's url, I get a hydrated model.

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• Critiquing my first Python script

  - by tipu

  A little bit of background: I'm building an inverted index for a search engine. I was originally using PHP, but because of the amount of times I needed to write to disk, I wanted to make a threaded indexer. There's a problem with that because PHP is not thread safe. I then tried Java, but I ended up with at least 20 try catch blocks because of the JSON data structure I was using and working with files. The code was just too big and ugly. Then I figured I should pick up some Python because it's flexible like PHP but also thread safe. Though I'm open to all criticism, what I'd like to learn is the shortcuts that the Python language/library provides that I skipped over. This is a PHP-afide Python script because all I really did was translate the PHP script line by line to what I thought was it's Python equivalent. Thanks. http://pastebin.com/xrg7rf9w

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• JQuery JQGrid local data loading issue

  - by ollie314

  Hi, I've got a problem with the following code <script type="text/javascript"> var mydata = [ {id:"1",name:"foo"},{id:"2",name:"bar"} ]; jQuery(document).ready(function() { jQuery("#lgrid").jqGrid({ data: mydata, datatype: "local", height: 150, width:600, rowNum: 10, rowList: [10,20,30], colNames:['id','name'], colModel:[ {name:'id',index:'id', width:60, sorttype:"int"}, {name:'name',index:'name', width:60}], pager: "#pgrid", viewrecords: true, caption: "Contacts" }); }); </script> And In the body .... <table id="lgrid"></table> <div id="pgrid"></div> With this code, I never display the data into the grid. Somebody has an idea about this issue ? Thanks.

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• Redirect to a specific url depending upon the base url using htaccess file

  - by Goysar

  I am using htaccess to redirect to url with page description. For example RewriteRule ^Flash$ /index.php?section=flash [L,NC] By using this code when i hot domain.com/Flash it redirects me to www.domain.com/index.php? section=flash. This works fine. But now what i want to have two more site with the same htaccess file. So can anyone help me in redirecting the url with same htaccess for multiple site. Can i find the base url and redirect depending on that??

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• Namespace Autoload works under windows, but not on Linux

  - by EvilChookie

  I have the following php code: index.php <?php spl_autoload_extensions(".php"); spl_autoload_register(); use modules\standard as std; $handler = new std\handler(); $handler->delegate(); ?> modules\standard\handler.php <?php namespace modules\standard { class handler { function delegate(){ echo 'Hello from delegation!'; } } } ?> Under Windows 7, running WAMP, the code produces the message "Hello from Delegation!" however under Linux, I get the following: Fatal error: spl_autoload(): Class modules\standard\handler could not be loaded in /var/www/index.php on line 15 Windows is running PHP 5.3.0 under WAMP, and Linux is running the 5.3.2 dotdeb package under Ubuntu 9.10. Is this a configuration issue on my linux box, or just a difference in the way namespaces and autoloading is handled on the different operating systems

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• jQuery and CodeIgniter AJAX with JSON not working

  - by thedp

  Hello, I trying to make my first AJAX with JSON call using jQuery and CodeIgniter. But for some weird reason it's not working. The jQuery code: var item = "COOL!"; $.post("http://192.168.8.138/index.php/main/test", { "item" : item }, function(data){ alert(data.result); }, "json"); The CodeIgniter code: <?php class main extends Controller { function test() { $item = trim($this->input->post('item')); $array = array('result' => $item); echo json_encode($array); } } ?> I tried to access the http://192.168.8.138/index.php/main/test page manually and it seems to be working, I got: {"result":""} I also tried to use Firebug to see XMLHttpRequest but saw nothing. I have no idea what am I doing wrong... Need help really badly. Thank you.

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• datatables.net plugin hides table behind left menu

  - by naveen

  I had a page that works perfectly in IE. Then I added the wonderful jQuery plugin datatables.net to it using this code in DOMReady with this code $('#articlestable-container table').dataTable({ "bPaginate": true, "bLengthChange": false, "bFilter": true, "bSort": false, "bInfo": false, "bAutoWidth": false }); Everything is fine in Webkit and Firefox browsers. See the image. But in IE, the table hides the menu that ideally should come over the table like this. As you can see, the sub-menu gets rendered behind the table. I don't think z-index is the culprit here. The sub-menu has z-index: 9999; anyway. What could be wrong? Any pointers to solve this will be very helpful.

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• In SQL / MySQL, can a Left Outer Join be used to find out the duplicates when there is no Primary ID

  - by Jian Lin

  I would like to try using Outer Join to find out duplicates in a table: If a table has Primary Index ID, then the following outer join can find out the duplicate names: mysql> select * from gifts; +--------+------------+-----------------+---------------------+ | giftID | name | filename | effectiveTime | +--------+------------+-----------------+---------------------+ | 2 | teddy bear | bear.jpg | 2010-04-24 04:36:03 | | 3 | coffee | coffee123.jpg | 2010-04-24 05:10:43 | | 6 | beer | beer_glass.png | 2010-04-24 05:18:12 | | 10 | heart | heart_shape.jpg | 2010-04-24 05:11:29 | | 11 | ice tea | icetea.jpg | 2010-04-24 05:19:53 | | 12 | cash | cash.png | 2010-04-24 05:27:44 | | 13 | chocolate | choco.jpg | 2010-04-25 04:04:31 | | 14 | coffee | latte.jpg | 2010-04-27 05:49:52 | | 15 | coffee | espresso.jpg | 2010-04-27 06:03:03 | +--------+------------+-----------------+---------------------+ 9 rows in set (0.00 sec) mysql> select * from gifts g1 LEFT JOIN (select * from gifts group by name) g2 on g1.giftID = g2.giftID where g2.giftID IS NULL; +--------+--------+--------------+---------------------+--------+------+----------+---------------+ | giftID | name | filename | effectiveTime | giftID | name | filename | effectiveTime | +--------+--------+--------------+---------------------+--------+------+----------+---------------+ | 14 | coffee | latte.jpg | 2010-04-27 05:49:52 | NULL | NULL | NULL | NULL | | 15 | coffee | espresso.jpg | 2010-04-27 06:03:03 | NULL | NULL | NULL | NULL | +--------+--------+--------------+---------------------+--------+------+----------+---------------+ 2 rows in set (0.00 sec) But what if the table doesn't have a Primary Index ID, then can an outer join still be used to find out duplicates?

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• jqgrid - edit form field combobox not defaulting to selected row value after first edit

  - by ooo

  i am using jqgrid with asp.net-mvc. I have an edit form (using jqmodal) which works great but for some reason one combobox field doesn't default to the current selected row after the first time i bring up the edit form. the weird thing is that i have many other comboboxes which work fine every time and i don't see any real difference. here is an example of the field that doesn't work: { name: "TechOwner", index: "TechOwner", width: 70, editable: true, edittype: "select", editoptions: { dataUrl: "/Person/GetSelectData" }, editrules: { required: true} }, and here is a field that works fine: { name: "FundingType", index: "FundingType", align: "left", width: 25, editable: true, edittype: "select", editoptions: { dataUrl: "/Project/FundingGetSelectData" }, editrules: { required: true} }, the dropdown is getting populated with all options (including the current selected row option) but its just defaulting to the top item) instead of one that matches the current row. is there anything to look out for here that may cause this behavior?

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• MySQL query optimization JOIN

  - by Pierre

  Hi, I need your help to optimize those mysql query, both are in my slow query logs. SELECT a.nom, c.id_apps, c.id_commentaire, c.id_utilisateur, c.note_commentaire, u.nom_utilisateur FROM comments AS c LEFT JOIN apps AS a ON c.id_apps = a.id_apps LEFT JOIN users AS u ON c.id_utilisateur = u.id_utilisateur ORDER BY c.date_commentaire DESC LIMIT 5; There is a MySQL INDEX on c.id_apps, a.id_apps, c.id_utilisateur, u.id_utilisateur and c.date_commentaire. SELECT a.id_apps, a.id_itunes, a.nom, a.prix, a.resume, c.nom_fr_cat, e.nom_edit FROM apps AS a LEFT JOIN cat AS c ON a.categorie = c.id_cat LEFT JOIN edit AS e ON a.editeur = e.id_edit ORDER BY a.id_apps DESC LIMIT 20; There is a MySQL INDEX on a.categorie, c.id_cat, a.editeur, e.id_edit and a.id_apps Thanks

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• Java String.indexOf and empty Strings

  - by tmeisenh

  I'm curious why the String.indexOf is returning a 0 (instead of -1) when asking for the index of an empty string within a string. The Javadocs only say this method returns the index in this String of the specified string, -1 if the string isn't found. System.out.println("FOO".indexOf("")); // outputs 0 wtf!!! System.out.println("FOO".indexOf("bar")); // outputs -1 as expected System.out.println("FOO".indexOf("F")); // outputs 0 as expected System.out.println("".indexOf("")); // outputs 0 as expected, I think

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• Route alias, is it possible?

  - by benoror

  I have a Vehicle model: map.resources :vehicles, :has_many => :suppliers Everything works great, but Vehicle has a boolean attribute is_truck. I want to make an Alias so I can get the same resources but with the "truck" word, I tried with: map.trucks '/trucks', :controller => :vehicles, :action => :index, :is_truck => true map.trucks '/trucks/by_supplier/:supplier', :controller => :vehicles, :action => :index, :is_truck => true The first one works well, but when I search within a Form the second doesn't work and searches all suppliers. Is it possible to map.resources for an alias ?

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• SharePoint thinks new Server is offline?

  - by emalamisura

  I added an index server to the topology, and tried to switch it from the front end to the index server but for some reason I get an exception every time in Central Admin saying the server is offline. I checked everything... IIS is running and is serving out correctly The App Pool Identity is valid I restarted IIS I restarted the Indexing server I had a wierd problem when installing SP2 for SharePoint, (WSS sp2 installed fine) where it got stuck and "Upgrading SharePoint Products and Technologies" and I had to run the following command to get it to continue: psconfig -cmd upgrade -inplace b2b -wait -force After that it said it succeeded with no errors... The only thing I haven't done is reboot the Primary server cause I have to do it in off hours, but I want to make sure I have covered all my other bases first...Any ideas?

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• Difference between mutableArrayValueForKey and calling insertObject:inEmployeesAtIndex: directly

  - by jasonbogd

  I have a question regarding using KVO-compliant methods to insert/remove objects from an array. I'm working through Aaron Hillegass' Cocoa Programming for Mac OS X and I saw the following line of code (in the insertObject:inEmployeesAtIndex: method: [[undoManager prepareWithInvocationTarget:self] removeObjectFromEmployeesAtIndex:index]; Correct me if I'm wrong, but I always thought it was better to call mutableArrayValueForKey: and then removeObjectAtIndex:...so I tried changing the above line to this: [[undoManager prepareWithInvocationTarget:[self mutableArrayValueForKey:@"employees"]] removeObjectAtIndex:index]; And it didn't work. Can someone explain the difference and why the first line works but the second line doesn't?

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