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• RSS feed for gas prices and how to intepret the feed

  - by subh

  I am trying to adda RSS feed of gas prices based on location to my application. I google for RSS feed for gas prices and bumped onto Motortrend's gas price feed http://www.motortrend.com/widgetrss/gas- The feed seems to be fine, but the price value seem to be depcited in alphatbets as below Chevron 3921 Irvine Blvd, Irvine, CA 92602 (0.0 miles) Monday, May 10, 2010 9:16 AM Regular: ZEIECHK Plus: ZEHGIHC Premium: ZEGJEGE Diesel: N/A How do I interpret these value to come up with a value for the gas price? Or is it internal to Motortrend's and cannot be used elsewhere?

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• iphone tab bar controller and core data.

  - by Sway

  Ok bit of a newbie type question. I want to use Core Data, together with Tab and Navigation controllers. In XCode if I create a Navigation Based Application I get the option to choose Core Data. Whereas If I create a Tab Bar Application I don't get the choice. I understand that Tab Bars display view controllers so it kinda makes sense. However given that by default it sticks the basic Core Data code in the Application delegate I don't see why this isn't offered. At the moment I'm creating the two projects and cutting and pasting between them. Does this omission in XCode seem weird to you? Is it some sort of oversight? Thanks, Matt

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• java-COM interop: Implement COM interface in Java

  - by mdma

  How can I implement a vtable COM interface in java? In the old days, I'd use the Microsft JVM, which had built in java-COM interop. What's the equivalent for a modern JRE? Answers to a similar SO question proposed JACOB. I've looked at JACOB, but that is based on IDispatch, and is aimed at controlling Automation serers. The COM interfaces I need are custom vtable (extend IUnknown), e.g. IPersistStream, IOleWindow, IContextMenu etc. For my use case, I could implement all the COM specifics in JNI, and have the JNI layer call corresponding interfaces in java. But I'm hoping for a less painful solution. It's for an open source project, so open source alternatives are preferred.

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• Outputting a bar chart to an iPhone application?

  - by Moddy

  Right, I really want to output a Bar Graph to an Obj-C iPhone application - now I may be missing a vital SDK class or something; but right now my solution is to embed a WebView and inside that have a JQuery/Flot based graph - not totally ideal I know! Just wondering if anybody has any other creative solutions or whether a WebView/AJAX solution is the way to go? (For the record; my data source will be figures returned from an external source - i.e downloaded from the internet. So I was even toying with having a PHP Proxy/script do all the work on that, return the figures AND a graph to the application - but then I risk placing extra strain on the server!)

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• Constructing dynamic columns from parameters in Sybase

  - by Chapax

  Hi, I'm trying to write a stored proc (SP) in Sybase. The SP takes 5 varchar parameters. Based on the parameters passed, I want to construct the column names to be selected from a particular table. The below works: DECLARE @TEST VARCHAR(50) SELECT @TEST = "country" --print @TEST execute("SELECT DISTINCT id_country AS id_level, Country AS nm_level FROM tempdb..tbl_books INNER JOIN (tbl_ch2_bespoke_report INNER JOIN tbl_ch2_bespoke_rpt_mapping ON tbl_ch2_bespoke_report.id_report = tbl_ch2_bespoke_rpt_mapping.id_report) ON id_" + @TEST + "= tbl_ch2_bespoke_rpt_mapping.id_pnl_level WHERE tbl_ch2_bespoke_report.id_report = 14") but gives me multiple results: 1 1 row(s) affected. id_level nm_level 1 4376 XYZ 2 4340 ABC I would like to however only obtain the 2nd result. Do I need to necessarily use dynamic SQL to achieve this? Many thanks for your help. --Chapax

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• Fit Lightbox container in window if image is larger

  - by Bobe

  I'm just looking for a simple way to set the max width and height of the Lightbox container and image based on the window size if the image is larger than the current window size. So say the image is 2000x1200 and the window is 1280x1024, then the max-height and max-width of div.lb-outerContainer and img.lb-image should be set to $(window).height() - 286, $(window).width() - 60 and $(window).height() - 306, $(window).width() - 80 respectively. I'm just having a bit of trouble determining where to go about implementing these rules. Do I do it in the lightbox.js file? If so, where? Would it be acceptable to just throw in some script on the page it's used on?

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• VCS File Downloading Issue with IE

  - by Sachin Gaur

  I am working on a http based (NOT Secure) Web Application. In this, I have provided a provision to add some appointment to the Client's outlook calendar. I am creating the .vcs file dynamically when clicked on a hyperlink. The code of generating .VCS file is: string calendarFormat = GetVCSFormat(); Response.ContentType = "text/calendar"; Response.AppendHeader("content-disposition", "attachment; filename=MyCalendar.vcs"); Response.Write(calendarFormat); Response.End(); It is working fine in all browsers except IE. It is giving me following error: Internet Explorer cannot download GenerateAppointment.aspx from server. Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later. Can anyone focus some light on it?

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• Scala Actors with Java interop to underlying COM libraries

  - by wheaties

  I'm working on a JVM project which uses ESRI components (COM based, wrapped with JIntegra.) The client has requested the JAR files we produce work on the JVM and be accessible to Java code. I'd like to use Scala but I'm worried about how well the library will play with Scala's actors. Particularly I'm worried about the different mechanisms COM and Java employ to pass objects from one thread to another. Does anyone have any experience with this? Will they play nice? Edit: for clarification I noticed that when performing I/O on the ESRI DB that the CPU utilization is roughly 15%. I'd like to read each row and pass that row over to another actor for parsing. Then I could have several threads reading from the DB at once. The problem is that each row retrieved using ESRI's library is actually a Java wrapped COM object.

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• ASP.NET GridView - Editing Dynamic Template Columns

  - by user208662

  Hello, I have created a GridView whose columns are dynamically created based on my data source. I have implemented these columns by using the approach described here.Those columns display properly on the initial load. However, I need to implement commanding so that a user can edit / delete a row in the GridView. At this point, I have implemented commanding as I would with a normal GridView. I have a TemplateField with an ItemTemplate that has LinkButton elements for edit and delete. The CommandName for each LinkButton is set to either Edit or Delete respectively. Oddly, when a user clicks either the Edit or Delete link, the data in the GridView disappears. However, I have verified that I am in fact re-binding the data when one of these LinkButton elements is selected. Can anyone provide some suggestions as to what the cause could be? Thank you!

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• Inserting the record into Database through JPA

  - by vinay123

  In my code I am using JSF - Front end , EJB-Middile Tier and JPA connect to DB.Calling the EJB using the Webservices.Using MySQL as DAtabase. I have created the Voter table in which I need to insert the record. I ma passing the values from the JSF to EJB, it is working.I have created JPA controller class (which automatcally generates the persistence code based on the data base classes) Ex: getting the entity manager etc., em = getEntityManager(); em.getTransaction().begin(); em.persist(voter); em.getTransaction().commit(); I have created the named query also: @NamedQuery(name = "Voter.insertRecord", query = "INSERT INTO Voter v values v.voterID = :voterID,v.password = :password,v.partSSN = :partSSN, v.address = :address, v.zipCode = :zipCode,v.ssn = :ssn, v.vFirstName = :vFirstName,v.vLastName = :vLastName,v.dob = :dob"), But still not able to insert the record? Can anyone help me in inserting the record into the Data base through JPA.(Persistence object)?

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• Twitter Oauth Strategy with Warden + Devise Authentication Gems for Ruby

  - by Michael Waxman

  Devise, the authentication gem for Ruby based on Warden (another auth gem) does not support Twitter Oauth as an authentication strategy, BUT Warden does. There is a way to use the Warden Twitter Oauth strategy within Devise, but I cannot figure it out. I'm using the following block in the devise config file: config.warden do |manager| manager.oauth(:twitter) do |twitter| twitter.consumer_secret = <SECRET> twitter.consumer_key = <KEY> twitter.options :site => 'http://twitter.com' end manager.default_strategies.unshift :twitter_oauth end But I keep on getting all sorts of error messages. Does anyone know how to make this work? I'm assuming there is more to do here (configuring a new link/route to talk to Warden, maybe adding attributes to the Devise User model, etc.), but I can't figure out what they are. Please help.

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• Fine tune some SQL called multiple times

  - by Carl

  Hi all, I currently have an SQL query which is currently called multiple times like this (pseudo code): foreach(KeyValuePair kvp in someMapList) { select col1 from table where col2 = kvp.key and col3 = kvp.value; //do some processing on the returned value } The above could obviously call the database a large number of times if it is a big list of pairs. Can anyone think of a more efficient piece of SQL which could essentially return a list of specific values based on a list of two unique pieces of information so that the processing can be done in bulk? One obvious one would be to build up a big piece of SQL with ORs but this would probably be quite inefficient? Thanks Carl

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• Can I have conditional construction of classes when using IoC.Resolve ?

  - by Corpsekicker

  I have a service class which has overloaded constructors. One constructor has 5 parameters and the other has 4. Before I call, var service = IoC.Resolve<IService>(); I want to do a test and based on the result of this test, resolve service using a specific constructor. In other words, bool testPassed = CheckCertainConditions(); if (testPassed) { //Resolve service using 5 paramater constructor } else { //Resolve service using 4 parameter constructor //If I use 5 parameter constructor under these conditions I will have epic fail. } Is there a way I can specify which one I want to use?

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• Is it possible to hide the tabbar when a button is pressed to allow a full screen view of the conten

  - by Jonah

  I have a UITabBar in the detail view of my navigation based application. I am storing text and images in a tableview and would like the user to be able to tap on a cell to hide the navigation controller and the tabbar for full screen viewing of the content. I found this code for hiding the top bars, but it does not seem as easy to hide the tabbar. [[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES]; [self.navigationController setNavigationBarHidden:YES animated:YES]; Does anyone know how to do this? This code does not work to hide the tabBar once the view is already loaded. yourTabViewController.hidesBottomBarWhenPushed = YES;

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• Parse the HTTP_COOKIES string from Apache for use in #if clause

  - by Ambrose

  I want to be able to read the cookies from Apache's HTTP_COOKIE string and then add includes based on the contents of that string. I've got this far: <!--#set var="cookies" value="HTTP_COOKIE" --> <p>COOKIES: <!--#echo var="$cookies"--></p> which gives me a string with all the cookies in it. Now I want to be able to parse the string for something like Name=Bob. I thought I'd be able to do this: <!--#if expr="$cookies = /Name=([a-zA-Z]+)/"--> <p>Your name is <!--#echo var="$1"--></p> <!--#endif--> But it doesn't seem to work. What should I be doing -- or isn't this possible?

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• EMail Signing (Outlook) Using Smartcard Minidriver [Windows]

  - by Baget

  Hi I'm developing a Smart card Minidriver and I'm trying to Sign an Email using Outlook 2007. I have implemented all of the necessary functions in the minidriver. I'm able to create a "Smartcard User" certificate and save it and it's private key on the smartcard (using Microsoft Certificate Services via the Minidriver). When I try to sign an EMail via Outlook I'm getting Error Message (Internal Error), the last call to the minidriver is for ReadFile with "cmapfile" When I try to sign an EMail via Outlook with a difference non-smartcard certificate it's work fine. When I try to sign a Data using CryptoAPI (based on Windows SDK Sample) it's working fine. I'm using Windows 7. someone got any idea how to debug this issue? I tried to enable the CAPI2 eventlog, it don't give me any good information.

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• WebSharingAppDemo-CEProviderEndToEnd Queries peerProvider for NeedsScope before any files are batche

  - by Don

  I'm building an application based on the WebSharingAppDemo-CEProviderEndToEnd. When I deploy the server portion on a server, the code gives the error "The path is not valid. Check the directory for the database." during the call to NeedsScope() in the CeWebSyncService.cs file. Obviously the server can't access the client's sdf but what is supposed to happen to make this work? The app uses batching to send the data and the batches have to be marshalled across to the temp directory but this problem is occurring before any files have been batched over. There is nothing for the server to look at to determine whether the peerProivider needs scope. What am I missing? public bool NeedsScope() { Log("NeedsSchema: {0}", this.peerProvider.Connection.ConnectionString); SqlCeSyncScopeProvisioning prov = new SqlCeSyncScopeProvisioning(); return !prov.ScopeExists(this.peerProvider.ScopeName, (SqlCeConnection)this.peerProvider.Connection); }

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• using WP_Query with custom SQL in wordpress

  - by Matt Facer

  Hi. I am writing a plugin for wordpress and I want to create my own search. I have tried to alter the wordpress search, but what I am doing is very specific with the SQL query. I am comparing lat and long coordinates and getting posts based on that. I can display posts by using the standard wpdb query, but then I don't get the other features like paging. I'd like to be able to use my SQL statement with the WP_Query function. If I'm right in thinking, I should then be able to use the paging and other features which come from the $posts global variable. Is this right?? I've googled for hours but can't find anything for plugins outside of using args to select categories etc. I simply need to send a complete SQL command - nothing else. Many thanks....

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• Git & Web-design: handling multiple customized templates

  - by o_O Tync

  I'm developing a CMS (with Django, but that doesn't matter) and have chosen GIT. Installations will vary in: Configs Database contents Media Templates First 3 are not a problem with git: we simply don't need these :) While developing, I have 1 default template with related media. Later, each customer will receive his own design based on default templates (some slight customization). I'm not going to support each of the custom templates as I introduce new features. Modularity helps with this but is not a 100% solution. Do you have any experience to share?

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• SQL Query problem: How to merge two lists.

  - by ProfK

  I have a base table of Participants and Answers, with the following structure: ParticipantId, BusUnitId, QuestionNum, Answer. In this table, QuestionNum ranges, say, from 1 to 6. I also have two other tables that sort of link QuestionNum to the actual question table, BusUnitQuestions, and ParticipantQuestions. For each QuestionNum, I must get the actual question text, based on QuestionId. BusUnitId, QuestionId ParticipantId, QuestionId Now assuming records with QuestionNum from 1 to 6. BusUnitQuestions has 3 records, so QuestionNum 1 to 3 must join to Question on the QuestionId's from BusUnitQuestions, and QuestionNum 4 to 6 must join to Question on the QuestionId's from ParticipantQuestions. I assume I need to use ROW_NUMBER() in the subquery from BusUnitQuestions to join to my answer table, but I'm lost after that. If anyone at all understands me, do you have any suggestions?

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• How to handle Alarm notification in Android?

  - by Asheesh Vashishtha

  Hi, I'm developing an media player application for Android, for which I need to handle any Alarm notification, and based on that I'll pause my playback. When the Alarm in snoozed or dismissed, I'll then resume the playback. I googled a lot for the Alarm handling, but what I found was the way to enable Alarm notifications through code, set the intent and then handle it. However, no where could I locate just handling the Alarm notification part. I don't need to set the Alarm on, it could've been set by the user, and I don't need to programmatically. All I need is just handle that notification. Any ideas on this would be extremely useful? Thanks, Asheesh

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• R - find and calculate with unique combinations of values

  - by lecodesportif

  I would like to work with unique combinations of var1 and var2. foo <- data.frame(var1= c(1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4), var2=c(1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 2, 3, 3)) As has been noted (+1 for answers), unique(foo) results in this: var1 var2 1 1 1 2 2 1 3 2 2 4 3 1 5 3 2 6 4 2 7 4 3 Based on the unique combinations, how do I get the number of occurrences of a var1 value and the sum (bla) of each var1 value's var2 values. The output could look like this: var1 n bla 1 1 1 1 2 2 2 3 3 3 2 3 4 4 2 5 edit: The question was too basic and probably duplicate so I extended it.

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• URL BNF search part does not make sense

  - by Asaf Mesika

  Hi, While implementing a Java regular expression for URL based on the URL BNF published by W3C, I've failed to understand the search part. As quoted: httpaddress h t t p : / / hostport [ / path ] [ ? search ] search xalphas [ + search ] xalphas xalpha [ xalphas ] xalpha alpha | digit | safe | extra | escape alpha a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | digit 0 |1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 safe $ | - | _ | @ | . | & | + | - extra ! | * | " | ' | ( | ) | , Search claims it is xalphas seperated by a plus sign. xalphas can contain plus signs by it self, as claimed by safe. Thus according to my understanding , it should be: search xalphas Where am I wrong here?

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• Multiple aggregate functions in one SQL query from the same table using different conditions

  - by Eric Ness

  I'm working on creating a SQL query that will pull records from a table based on the value of two aggregate functions. These aggregate functions are pulling data from the same table, but with different filter conditions. The problem that I run into is that the results of the SUMs are much larger than if I only include one SUM function. I know that I can create this query using temp tables, but I'm just wondering if there is an elegant solution that requires only a single query. I've created a simplified version to demonstrate the issue. Here are the table structures: EMPLOYEE TABLE EMPID 1 2 3 ABSENCE TABLE EMPID DATE HOURS_ABSENT 1 6/1/2009 3 1 9/1/2009 1 2 3/1/2010 2 And here is the query: SELECT E.EMPID ,SUM(ATOTAL.HOURS_ABSENT) AS ABSENT_TOTAL ,SUM(AYEAR.HOURS_ABSENT) AS ABSENT_YEAR FROM EMPLOYEE E INNER JOIN ABSENCE ATOTAL ON ATOTAL.EMPID = E.EMPID INNER JOIN ABSENCE AYEAR ON AYEAR.EMPID = E.EMPID WHERE AYEAR.DATE > '1/1/2010' GROUP BY E.EMPID HAVING SUM(ATOTAL.HOURS_ABSENT) > 10 OR SUM(AYEAR.HOURS_ABSENT) > 3 Any insight would be greatly appreciated.

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• WPF Binding issues

  - by Nitin Chaudhari

  I have WPF window which binds a local Dependency property to a property of my usercontrol. So now I see the value which the window gave me in my usercontrol. I achieve this by setting DataContext of window to the window itself Now once the window is loaded i set the DataContext of usercontrol to a ViewModel class, and at some point of time(based on user action) the control changes values in the control. All fine so far. But now the changed value is not reflected in Windows dependency property. How I can resolve this issue?

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