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  • JPQL get most recent rows

    - by Vinnie
    Let's say I have the following tables my_profile_data ------------- integer: profile_id date: date_changed string: value my_profile ------------- integer: profile_id string: name I want to get the most recent profile information. In plain SQL this would look something like: select mpd.profile_id, mpd.value, max(mpd.date_changed) from my_profile_data mpd, my_profile mp where mpd.profile_id = mp.profile_id and mp.name='The Profile I Want' group by mpd.profile_id I've tried different variants of the following JPQL query, but cant get it to work. SELECT mpd FROM MyProfileData mpd LEFT JOIN (SELECT mpd.profileId profileId, MAX(mpd.dateChanged) FROM MyProfileData mpd LEFT JOIN mp.profile WHERE mp.name = :name GROUP BY mpd.profileId) recent ON (rp.profileid = recent.profileId) Is this query doable in JPA? I'm using EclipseLink as my JPA provider. The innermost exception I get when I try to run this is Caused by: NoViableAltException(81!=[506:7: (n= joinAssociationPathExpression ( AS )? i= IDENT | t= FETCH n= joinAssociationPathExpression )]) at org.eclipse.persistence.internal.jpa.parsing.jpql.antlr.JPQLParser.join(JPQLParser.java:3669) ... 73 more

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  • How to find (in javascript) the current "scroll" offset in mobile safari / iphone

    - by mintywalker
    I'd like to know the x/y offset of the how far the user has "scrolled" within the viewport in mobile safari on the iphone. Put another way, if I (through javascript) reloaded the current page, I'd like to find the values I'd need to pass into window.scrollTo(...) in order to reposition the document/viewport as it is currently. window.pageXOffset always reports 0 jquery's $('body').scrollTop() always reports 0 events have a pageX, but this won't account for the scrolling of the page that happens after you release your finger if your gesture was to "flick" the page up/down. Namely, it'll give me a point when the finger leaves the screen, but that doesn't always match where the page will be after it's finished scrolling. Any pointers?

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  • m2eclipse workspace resolution

    - by Bartosz Radaczynski
    Hi all, I am using m2eclipse for managing maven projects in eclipse. It seems that in the previous release that I was using (0.9.8) the workspace resolution did not work at all, but right now it also does not work quite as I would expect. Namely, when the "resolve dependencied from workspace" setting for a project is not checked, the project turns red and cannot be build. The message says: artifact xxx x.y-SNAPSHOT cannot be found int local repository (or something to that extent). The trouble is that m2eclipse is putting information about workspace project into my local repo. Is there a way to change this behaviour? P.S. The workaround for this is to close the xxx project, then m2eclipse resolved the dependency to whatever version I've had previously in the local repository (i.e. the non-snapshot version).

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  • JScrollPane and JList auto scroll

    - by dododedodonl
    Hi All, I've got the next code: listModel = new DefaultListModel(); listModel.addElement(dateFormat.format(new Date()) + ": Msg1"); messageList = new JList(listModel); messageList.setLayoutOrientation(JList.VERTICAL); messageScrollList = new JScrollPane(messageList); messageScrollList.setPreferredSize(new Dimension(500, 200)); messageScrollList.getVerticalScrollBar().addAdjustmentListener(new AdjustmentListener() { public void adjustmentValueChanged(AdjustmentEvent e) { e.getAdjustable().setValue(e.getAdjustable().getMaximum()); } }); It auto scrolls down. But, if I try to scroll back up to re-read a message, it forces a scroll down. How can I fix this?

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  • WPF slow to start on x64 in .NET Framework 4.0

    - by Robert Fraser
    I've noticed that if I build my WPF application for Any CPU/x64, it takes MUCH longer to start (on the order of about 20 seconds) or to load new controls than it does if started on x86 (in release & debug modes, inside or outside of VS). This occurs with even the simplest WPF apps. The problem is discussed in this MSDN thread, but no answer was provided there. This happens only with .NET 4.0 -- in 3.5 SP1, x64 was just as fast as x86. Interestingly, Microsoft seems to know about this problem since the default for a new WPF project in VS2010 is x86. Is this a real bug or am I just doing it wrong? EDIT: Possibly related to this: http://stackoverflow.com/questions/2788215/slow-databinding-setup-time-in-c-net-4-0. I'm using data binding heavily.

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  • Is it possible to reset NSURLConnection after providing credentials?

    - by John
    I am calling a REST service that requires basic auth and I respond to the didReceiveAuthenticationChallenge delegate OK NSURLCredential *credential = [[NSURLCredential alloc] initWithUser:self.user password:self.password persistence:NSURLCredentialPersistenceForSession]; [[challenge sender] useCredential:credential forAuthenticationChallenge:challenge]; [credential release]; The Credentials are valid for the Session but I would like for my App to be able to switch between servers and therefore need to "reset" the Session so it asks again for a challenge. I can of course try the option of not storing the credentials for the Session and supply them for each call but this does not seem like a good idea. Any ideas would be appreciated!

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  • NoSuchMethodError with Spring MutableValues

    - by jakob
    Hello experts! I have written a test where i specify my application context location with annotations. I then autowire my dao into the test. @ContextConfiguration(locations = {"file:service/src/main/webapp/WEB-INF/applicationContext.xml"}) public class MyTest extends AbstractTestNGSpringContextTests { @Autowired protected MyDao myDao; private PlatformTransactionManager transactionManager; private TransactionTemplate transactionTemplate; @Test public void shouldSaveEntityToDb() { transactionTemplate.execute(new TransactionCallbackWithoutResult() { protected void doInTransactionWithoutResult(TransactionStatus status) { Entity entity = new Entity(); //test myDao.save(entity) //assert assertNotNull(entity.getId()); } }); } When i run the test i get an exception which states that the application context could not be loaded and it boils down to: Caused by: java.lang.NoSuchMethodError: org.springframework.beans.MutablePropertyValues.add(Ljava/lang/String;Ljava/lang/Object;)Lorg/springframework/beans/MutablePropertyValues; I have no idea where to start looking, why do i get this error and how can i resolve it? Info springframework 3.0.2.RELEASE, Hibernate 3.4.0.GA, testng 5.9 Thank you!

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  • 404 Error - HEAD request on default page

    - by Matt
    I am working on a project where we are about to go to internal release. So we are working to clean up the small problems before then. I was looking at our logs and noticed a high number of 404 errors. On further inspection it seems that all of them are related to HEAD requests. I haven't been able to find any substantive information about the preferred method for handling this in a standards compliant manner. Is there anything out there that can point out the proper way to handle that.

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  • Debugging FLEX/AS3 memory leaks

    - by Scott Evernden
    I have a pretty big Flex & Papervision3D application that creates and destroys objects continually. It also loads and unloads SWF resource files too. While it's running the SWF slowly consumes memory til about 2GB when it croaks the player. Obviously I am pretty sure I let go of reference to instances I no longer want with expectation the GC will do its job. But I am having a heck of a time figuring out where the problem lies. I've tried using the profiler and its options for capturing memory snapshots, etc - but my problem remains evasive. I think there are known problems using debug Flash player also? But I get no joy using the release version either. How do you go about tracking down memory leak problems using FLEX/AS3 ? What are some strategies, tricks, or tools you have used to locate consumption

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  • Jquery datepicker: disable federal holidays

    - by Abu Hamzah
    i am working on asp.net using C# and using jquery datepicker my question is, how can i disable dates which are federal holidays? i have a dynamic dates which comes from sql server. anybody have done something similar or any idea how can i achieve this? $(document).ready(function () { $('#endDate').datepicker({ showOn: 'button', buttonImage: '../images/Calendar.png', buttonImageOnly: true, onSelect: function () { }, onClose: function () { $(this).focus(); } }); $('#startDate').datepicker({ showOn: 'button', buttonImage: '../images/Calendar.png', buttonImageOnly: true, onSelect: function (dateText, inst) { $('#endDate').datepicker("option", 'minDate', new Date(dateText)); } , onClose: function () { $(this).focus(); } }); }); Thanks.

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  • SQL Server CE, Visual Studio 2008/2010 RC, and Linq-to-Sql

    - by blu
    I added an .sdf to my project, added a table, added a Linq-to-Sql dmbl, and tried to add the table to the dbml. The result was an error: "The selected object(s) are an unsupported data provider" This happens in both VS 2008 Professional SP1 and 2010 RC Ultimate. I found someone talking about using SQL Metal to generate the file, but I didn't enjoy that 2 years ago, and after a little playing around I recall why. Does anyone know if this is going to be supported in the release version? Should I abandon SQL Server CE and just use SQLite (with DbLinq)? Thanks for any insight.

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  • System.Reflection - Global methods aren't available for reflection

    - by mrjoltcola
    I have an issue with a semantic gap between the CLR and System.Reflection. System.Reflection does not (AFAIK) support reflecting on global methods in an assembly. At the assembly level, I must start with the root types. My compiler can produce assemblies with global methods, and my standard bootstrap lib is a dll that includes some global methods. My compiler uses System.Reflection to import assembly metadata at compile time. It seems if I depend on System.Reflection, global methods are not a possibility. The cleanest solution is to convert all of my standard methods to class static methods, but the point is, my language allows global methods, and the CLR supports it, but System.Reflection leaves a gap. ildasm shows the global methods just fine, but I assume it does not use System.Reflection itself and goes right to the metadata and bytecode. Besides System.Reflection, is anyone aware of any other 3rd party reflection or disassembly libs that I could make use of (assuming I will eventually release my compiler as free, BSD licensed open source).

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  • Spam Assassin on windows

    - by ebeworld
    I just installed spam assassin and run for its sample ham mail as spamassassin sample-nonspam.txt, but it ended up marking it as a spam. What configuration am i missing to change? Result of the check is: From: Keith Dawson To: [email protected] Subject: **SPAM** TBTF ping for 2001-04-20: Reviving Date: Fri, 20 Apr 2001 16:59:58 -0400 Message-Id: X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on ebeworld-PC X-Spam-Level: **** X-Spam-Status: Yes, score=10.5 required=6.3 tests=DCC_CHECK,DIGEST_MULTIPLE, DNS_FROM_OPENWHOIS,RAZOR2_CF_RANGE_51_100,RAZOR2_CF_RANGE_E4_51_100, RAZOR2_CHECK shortcircuit=no autolearn=no version=3.2.3 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----------=_4BF17E8E.BF8E0000" This is a multi-part message in MIME format. ------------=_4BF17E8E.BF8E0000 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit This mail is probably spam. The original message has been attached intact in RFC 822 format. Content preview: -----BEGIN PGP SIGNED MESSAGE----- TBTF ping for 2001-04-20: Reviving T a s t y B i t s f r o m t h e T e c h n o l o g y F r o n t [...] Content analysis details: (10.5 points, 6.3 required) 2.4 DNS_FROM_OPENWHOIS RBL: Envelope sender listed in bl.open-whois.org. 1.5 RAZOR2_CF_RANGE_E4_51_100 Razor2 gives engine 4 confidence level above 50% [cf: 58] 2.5 RAZOR2_CHECK Listed in Razor2 (http://razor.sf.net/) 0.5 RAZOR2_CF_RANGE_51_100 Razor2 gives confidence level above 50% [cf: 58] 3.6 DCC_CHECK Listed in DCC (http://rhyolite.com/anti-spam/dcc/) 0.0 DIGEST_MULTIPLE Message hits more than one network digest check ------------=_4BF17E8E.BF8E0000 Content-Type: message/rfc822; x-spam-type=original Content-Description: original message before SpamAssassin Content-Disposition: inline Content-Transfer-Encoding: 8bit Return-Path: Delivered-To: [email protected] Received: from europe.std.com (europe.std.com [199.172.62.20]) by mail.netnoteinc.com (Postfix) with ESMTP id 392E1114061 for ; Fri, 20 Apr 2001 21:34:46 +0000 (Eire) Received: (from daemon@localhost) by europe.std.com (8.9.3/8.9.3) id RAA09630 for tbtf-outgoing; Fri, 20 Apr 2001 17:31:18 -0400 (EDT) Received: from sgi04-e.std.com (sgi04-e.std.com [199.172.62.134]) by europe.std.com (8.9.3/8.9.3) with ESMTP id RAA08749 for ; Fri, 20 Apr 2001 17:24:31 -0400 (EDT) Received: from world.std.com (world-f.std.com [199.172.62.5]) by sgi04-e.std.com (8.9.3/8.9.3) with ESMTP id RAA8278330 for ; Fri, 20 Apr 2001 17:24:31 -0400 (EDT) Received: (from dawson@localhost) by world.std.com (8.9.3/8.9.3) id RAA26781 for [email protected]; Fri, 20 Apr 2001 17:24:31 -0400 (EDT) Received: from sgi04-e.std.com (sgi04-e.std.com [199.172.62.134]) by europe.std.com (8.9.3/8.9.3) with ESMTP id RAA07541 for ; Fri, 20 Apr 2001 17:12:06 -0400 (EDT) Received: from world.std.com (world-f.std.com [199.172.62.5]) by sgi04-e.std.com (8.9.3/8.9.3) with ESMTP id RAA8416421 for ; Fri, 20 Apr 2001 17:12:06 -0400 (EDT) Received: from [208.192.102.193] (ppp0c199.std.com [208.192.102.199]) by world.std.com (8.9.3/8.9.3) with ESMTP id RAA14226 for ; Fri, 20 Apr 2001 17:12:04 -0400 (EDT) Mime-Version: 1.0 Message-Id: Date: Fri, 20 Apr 2001 16:59:58 -0400 To: [email protected] From: Keith Dawson Subject: TBTF ping for 2001-04-20: Reviving Content-Type: text/plain; charset="us-ascii" Sender: [email protected] Precedence: list Reply-To: [email protected] -----BEGIN PGP SIGNED MESSAGE----- TBTF ping for 2001-04-20: Reviving T a s t y B i t s f r o m t h e T e c h n o l o g y F r o n t Timely news of the bellwethers in computer and communications technology that will affect electronic commerce -- since 1994 Your Host: Keith Dawson ISSN: 1524-9948 This issue: < http://tbtf.com/archive/2001-04-20.html > To comment on this issue, please use this forum at Quick Topic: < http://www.quicktopic.com/tbtf/H/kQGJR2TXL6H > ________________________________________________________________________ Q u o t e O f T h e M o m e n t Even organizations that promise "privacy for their customers" rarely if ever promise "continued privacy for their former customers..." Once you cancel your account with any business, their promises of keeping the information about their customers private no longer apply... you're not a customer any longer. This is in the large category of business behaviors that individuals would consider immoral and deceptive -- and businesses know are not illegal. -- "_ankh," writing on the XNStalk mailing list ________________________________________________________________________ ..TBTF's long hiatus is drawing to a close Hail subscribers to the TBTF mailing list. Some 2,000 [1] of you have signed up since the last issue [2] was mailed on 2000-07-20. This brief note is the first of several I will send to this list to excise the dead addresses prior to resuming regular publication. While you time the contractions of the newsletter's rebirth, I in- vite you to read the TBTF Log [3] and sign up for its separate free subscription. Send "subscribe" (no quotes) with any subject to [email protected] . I mail out collected Log items on Sun- days. If you need to stay more immediately on top of breaking stories, pick up the TBTF Log's syndication file [4] or read an aggregator that does. Examples are Slashdot's Cheesy Portal [5], Userland [6], and Sitescooper [7]. If your news obsession runs even deeper and you own an SMS-capable cell phone or PDA, sign up on TBTF's WebWire- lessNow portal [8]. A free call will bring you the latest TBTF Log headline, Jargon Scout [9] find, or Siliconium [10]. Two new columnists have bloomed on TBTF since last summer: Ted By- field's roving_reporter [11] and Gary Stock's UnBlinking [12]. Late- ly Byfield has been writing in unmatched depth about ICANN, but the roving_reporter nym's roots are in commentary at the intersection of technology and culture. Stock's UnBlinking latches onto topical sub- jects and pursues them to the ends of the Net. These writers' voices are compelling and utterly distinctive. [1] http://tbtf.com/growth.html [2] http://tbtf.com/archive/2000-07-20.html [3] http://tbtf.com/blog/ [4] http://tbtf.com/tbtf.rdf [5] http://www.slashdot.org/cheesyportal.shtml [6] http://my.userland.com/ [7] http://www.sitescooper.org/ [8] http://tbtf.com/pull-wwn/ [9] http://tbtf.com/jargon-scout.html [10] http://tbtf.com/siliconia.html [11] http://tbtf.com/roving_reporter/ [12] http://tbtf.com/unblinking/ ________________________________________________________________________ S o u r c e s For a complete list of TBTF's email and Web sources, see http://tbtf.com/sources.html . ________________________________________ B e n e f a c t o r s TBTF is free. If you get value from this publication, please visit the TBTF Benefactors page < http://tbtf.com/the-benefactors.html > and consider contributing to its upkeep. ________________________________________________________________________ TBTF home and archive at http://tbtf.com/ . To unsubscribe send the message "unsubscribe" to [email protected]. TBTF is Copy- right 1994-2000 by Keith Dawson, <[email protected]>. Commercial use prohibited. For non-commercial purposes please forward, post, and link as you see fit. _______________________________________________ Keith Dawson [email protected] Layer of ash separates morning and evening milk. -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.2 for non-commercial use http://www.pgp.com iQCVAwUBOuCi3WAMawgf2iXRAQHeAQQA3YSePSQ0XzdHZUVskFDkTfpE9XS4fHQs WaT6a8qLZK9PdNcoz3zggM/Jnjdx6CJqNzxPEtxk9B2DoGll/C/60HWNPN+VujDu Xav65S0P+Px4knaQcCIeCamQJ7uGcsw+CqMpNbxWYaTYmjAfkbKH1EuLC2VRwdmD wQmwrDp70v8= =8hLB -----END PGP SIGNATURE----- ------------=_4BF17E8E.BF8E0000--

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  • Adding bindingRedirect element in web.config when upgrading from asp.net mvc 1 to asp.net mvc 2

    - by mallows98
    Hi all, I have got a question with regards to upgrading asp.net mvc applications from v1 to v2... I've noticed in the ASP.NET MVC v2 Release notes that we need to add this code (please see below) when upgrading, but it did not state what would be the purpose of it because I've tried experimenting some of my apps to asp.net mvc 2 without adding this particular section in web.config. <runtime> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> <dependentAssembly> <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35"/> <bindingRedirect oldVersion="1.0.0.0" newVersion="2.0.0.0"/> </dependentAssembly> </assemblyBinding> </runtime> Would there be implications should I not place this? Thanks!

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  • DVCS and data loss?

    - by David Wolever
    After almost two years of using DVCS, it seems that one inherent "flaw" is accidental data loss: I have lost code which isn't pushed, and I know other people who have as well. I can see a few reasons for this: off-site data duplication (ie, "commits have to go to a remote host") is not built in, the repository lives in the same directory as the code and the notion of "hack 'till you've got something to release" is prevalent... But that's beside the point. I'm curious to know: have you experienced DVCS-related data loss? Or have you been using DVCS without trouble? And, related, apart from "remember to push often", is there anything which can be done to minimize the risk?

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  • Freeze the indent of a row group in DevExpress GridControl

    - by brader
    I am required to display a DevExpress WinForms GridControl where the rows must be grouped by a date column. When horizontally scrolling the grid, I am required to keep the group row and group indents fixed to the left of the control (so they do not scroll with the columns). I have so far been unable to find any built-in capability for this. There is the ability to fix a column to the left or right side of the control, but the indent is not a true column. FYI, the group row portion is staying "fixed" by handling the drawing of it to always position it at the left. I do not see a way of controlling the drawing of the indent however. Attempts to custom draw an indent have been unsuccessful so far. We are using version 9.3.2.0 of the DevExpress XtraGrid controls for WinForms. Does anyone have any solutions or workarounds that might allow us to at least give the appearance that the group indents are fixed? Thank you!

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  • Best way to display a list of events by month

    - by EmmyS
    I have a mySQL table of events and want to display them in a list using PHP. Pretty simple, except I only want to display the month name once, for example: May 2010 12th, 7 pm. Event 1 - event one description 15th, 5:30 pm. Event 2 - event two description June 2010 9th, 7 pm. Event 1 - event one description 11th, 5:30 pm. Event 2 - event two description I'm very new at SQL and PHP. I can think of one way to do it. It would involve selecting all records grouped by date, then looping through all records, comparing the month/year value each time and the first time the month/year doesn't match, print a new header row to my HTML table. I can't believe it's the best or most efficient way to go. Any ideas for a newbie? I'm sure my way would work, but it's inelegant at best, and processor-intensive at worst.

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  • Outlets buggy, causing crash?

    - by Moshe
    I've been having issues with making outlets and I was wondering if there is a difference and what the difference could be... EDIT: Using Outlets seem to be causeing SIGABRT errors... // // hebOmer.h // tizkorPush // // Created by Moshe -...- . // Copyright 2010 __MyCompanyName__. All rights reserved. // #import <UIKit/UIKit.h> #import "support.h" #import "hdate.h" @interface hebOmer : UIViewController{ IBOutlet UIScrollView * hebrewScrollView; UILabel *hebrewOmer; } @property (nonatomic, retain) UIScrollView * hebrewScrollView; @property (nonatomic, retain) IBOutlet UILabel *hebrewOmer; @end Creating an outlet to the UILabel is causing problems. The implementation seems fine. @synthesize and the memory release functions were called properly.

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  • Inbox Functionality with MYSQL

    - by Faisal Abid
    So I am writing a simple inbox private message system, my table schema is as follows - messageID - message - sender id - receiver id - date sent - read ( 0 = no , 1 = yes) now I am able to show the messages for the user by relating his userID to receiverID. However I also want to show the messages he has sent in the inbox to the user. For example his inbox should show Darth Vader - 3 New messages Luke - 0 new messages (0 because either I read all of them OR i sent him the message and he has not replied). But what i can only come up with is Darth Vader - 3 New messages. Can I get any help with how I can accomplish this SQL call?

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  • Memory leak issue with UIImagePickerController

    - by Mustafa
    I'm getting memory leak with UIImagePickerController class. Here's how I'm using it: UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; [self presentModalViewController:picker animated:YES]; [picker release]; To remove the picker i call [picker dismissModalViewControllerAnimated:YES]; in didFinishPickingImage and imagePickerControllerDidCancel. -- Instruments show around 160bytes leaking as a result of this instruction: +[UIImagePickerController _loadPhotoLibraryIfNecessary] Apparently this issue has and is disturbing many people, and solution to avoid this problem is to build a singleton class dedicated for picking images from library or capturing using device's build in camera. Anyone want to add something?

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  • Is NSNumberFormatter the only way to format an NSDecimalNumber?

    - by Paul Alexander
    I'm using an NSDecimalNumber to store money in Core Data. I naively used stringWithFormat: at first to format the value, later realizing that it didn't support NSDecimalNumber and was instead formatting the pointer :(. So after some reading through the docs I learned to use the NSNumberFormatter to get the format I wanted. But this just strikes me as the "hard way". Is there any easier way than this:? NSNumberFormatter * formatter = [[NSNumberFormatter alloc] init]; [formatter setNumberStyle: NSNumberFormatterCurrencyStyle]; priceField.text = [formatter stringFromNumber: ent.price]; [formatter release];

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  • Using javax.script to run javascript with browser settings (e.g. envjs)?

    - by Shane
    I am trying to run Protovis javascript from a Java program: ScriptEngineManager factory = new ScriptEngineManager(); ScriptEngine engine = factory.getEngineByName("JavaScript"); engine.eval(new java.io.FileReader("protovis-d3.1.js")); In order to run this, the JavaScript engine needs to have all the context of a web browser. The best option for this seems to be envjs. Unfortunately it seems that the version of Rhino included in the JVM isn't up to date and doesn't include everything that's necessary for envjs. Has anyone had any success working with a browser context from javax.script.

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  • Linear Regression and Java Dates

    - by Smithers
    I am trying to find the linear trend line for a set of data. The set contains pairs of dates (x values) and scores (y values). I am using a version of this code as the basis of my algorithm. The results I am getting are off by a few orders of magnitude. I assume that there is some problem with round off error or overflow because I am using Date's getTime method which gives you a huge number of milliseconds. Does anyone have a suggestion on how to minimize the errors and compute the correct results?

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  • How to implement full text search in Django?

    - by Jannis
    I would like to implement a search function in a django blogging application. The status quo is that I have a list of strings supplied by the user and the queryset is narrowed down by each string to include only those objects that match the string. See: if request.method == "POST": form = SearchForm(request.POST) if form.is_valid(): posts = Post.objects.all() for string in form.cleaned_data['query'].split(): posts = posts.filter( Q(title__icontains=string) | Q(text__icontains=string) | Q(tags__name__exact=string) ) return archive_index(request, queryset=posts, date_field='date') Now, what if I didn't want do concatenate each word that is searched for by a logical AND but with a logical OR? How would I do that? Is there a way to do that with Django's own Queryset methods or does one have to fall back to raw SQL queries? In general, is it a proper solution to do full text search like this or would you recommend using a search engine like Solr, Whoosh or Xapian. What are there benefits? Thanks for taking the time

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  • Text indexing algorithm

    - by Majd
    I am writing a C# winform application for an archiving system. The system has a huge database where some tables would have more than 1.5 million records. What i need is an algorithm that indexes the content of these records. Mainly, the files are Microsoft office, PDF and TXT documents. anyone can help? whether with ideas, links, books or codes, I appreciate it :) example: if i search for the word "international" in a certain folder in the database, i get all the files that contain that word ordered by a certain criteria such as relevance, modifying date...etc

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