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  • How do I display two different objects in a search?

    - by JZ
    github url I am using a simple search that displays search results: @adds = Add.search(params[:search]) In addition to the search results I'm trying to utilize a method, nearbys(), which displays objects that are close in proximity to the search result. The following method displays objects which are close to 2, but it does not display object 2. How do I display object 2 in conjunction with the nearby objects? @adds = Add.find(2).nearbys(10) While the above code functions, when I use search, @adds = Add.search(params[:search]).nearbys(10) a no method error is returned, undefined methodnearbys' for Array:0x30c3278` How can I search the model for an object AND use the nearbys() method AND display all results returned? Model: def self.search(search) if search find(:all, :conditions => ['address LIKE ?', "%#{search}%"]) # where('address LIKE ?', "%#{search}") else find(:all) end end

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  • How to get contents of Amazon shopping cart?

    - by Andrew Whitehouse
    I've been investigating whether it's possible to get a list of the saved items in my Amazon shopping basket programmatically ... Their Product Advertising API has methods for getting wishlists: http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/index.html?FindingItemsonLists.html and working with remote shopping carts: http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/index.html?CHAP_WorkingWithRemoteShoppingCarts.html but the shopping cart of items stored while on the Amazon web site is treated as a local shopping cart, and therefore is not accessible through the Product Advertising API. According to the last link: The opposite of a remote shopping cart is a local shopping cart, which is the shopping cart customers use while shopping on www.amazon.com. It is considered local because Amazon hosts the shopping web pages as well as the shopping cart. Product Advertising API operations work solely with remote shopping carts. Has anyone found a way of getting the contents of the "local" cart, apart from scraping the HTML? Thanks.

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  • One large file or multiple small files?

    - by Dan
    I have an application (currently written in Python as we iron out the specifics but eventually it will be written in C) that makes use of individual records stored in plain text files. We can't use a database and new records will need to be manually added regularly. My question is this: would it be faster to have a single file (500k-1Mb) and have my application open, loop through, find and close a file OR would it be faster to have the records separated and named using some appropriate convention so that the application could simply loop over filenames to find the data it needs? I know my question is quite general so direction to any good articles on the topic are as appreciated as much as suggestions. Thanks very much in advance for your time, Dan

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  • Compiling .NET component that uses a non specific required version of a 3rd Party Vendor component

    - by Dan
    If someone were to develop a .NET component that relied on non specific versions of a vendor DLL - let's say it worked with My3rdPartyComponent.dll which is a .NET assembly, but it didn't matter which version. Some instances of classes found in this component would need to be passed into my component. Developers would reference my component dll but not have access to the source code. Basically, I want to be able to require the user to pass in an instance of 3rdPartyComponent.MyClass to my component functions but I do not care if it's version 1.1, 2.2, 2.23.980, etc of the 3rd party dll. Is there a way to do this while still typing the parameter I want to be passed in to my component? I don't want to use Object as the reference. In my component project I could specify SpecificVersion=True on the assembly reference. Will this solve my problem or will there be other 'dll hell' issues to deal with that I am not seeing?

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  • Subsonic connections and dataset

    - by ajk
    Hi, If using subsonic, i know you hav to close a datareader. but what if you get a dataset back, from a stored procedure? What can you close? So if its like this - SubSonic.StoredProcedure sp = SubSonic.StoredProcedure; DataSet ds = DataSet; ds = sp.GetDataSet; What do i close when done? I don't think dataset can be closed, right? This is Subsonic 2.x Sorry if this was posted already, i tried to post earlier but got error message, and then couldnt find it so am trying again.

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  • ssis Connection manager password ("DontSaveSensitive")

    - by swapna
    Hi, I have a SSIS package used the protection level as "DontSaveSensitive" So initially i have saved the oledb connection manager password as in a XML config file.And this worked fine for me. Now for business requiremnt i have stored the configuration in sql server. Including password. Initially it worked fine.But suddenly connection manager is not taking password from sqlDB. If i set an environment variable for the "password" it's working. My question is. 1) what is the solution for this.( i can only save the configurations in sql) 2) initially how it worked.I mean initailly from sql server the password was taking. Please give some clue.I am doing a lot of trial and error. Thanks SNA

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  • How to Retrive data from XML Using XMLReader in C#

    - by Suryakavitha
    Hi, I am using windows application and i have four combo boxes(comboeventname,combosendtype,comboType,comboschedule) in that form.... I have stored that combo values in to XML file by using XML writer... now i want to display tha datas in that combo boxes in form load event when form opns in run time... How to retrive that values from that XML file and how to display that datas in combo boxes while run time... How shall i do this? Anyone tell me the solution of this..... Thanks in Advance...

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  • Steaming a non-PCM WAV file to a SilverLight application

    - by Satumba
    Hi, I would like to allow users to play recorded WAV files that stored on a server back to a Silverlight application as a client to play them. I saw that there is a way to play a WAV file on Silverlight (here), but when i tried to impliment it, i got an error playing the file because it is not in PCM format but encoded. The files that i'm trying to play are encoded with a special encoder, so i thought that the only way is to decode the WAV file on the server and stream it back to the client. The limitation is that the decode process should occur in real time because it is not reasonable to convert all the WAV files that exists. Is it possible to do it? Which streamer can i use? (Windows Media Service can help here?) Does somebody has any experience with such a scenario? Appreciate your help.

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  • DJ JWebBrowser: how to show but disable Address and Button bars?

    - by Nikolay Kuznetsov
    I am using chrriis.dj.nativeswing.swtimpl.components.JWebBrowser in my swing application to open web page. The page is going to show "Facebook Authentication" page and I want to prevent user from inputting some other URL other than I specify and also Forward and Back buttons should be visible but not has no affect. So following functions are applicable for my goal setButtonBarVisible(true); setLocationBarVisible(true); Once user completes the authentication I will handle the locationChanged event. @Override public void locationChanged(WebBrowserNavigationEvent arg0) { System.out.println("locationChanged!"); .... } }

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  • how to implement color search with sphinx?

    - by harald
    hello, searching a photo by dominant colors using mysql is quite simple. assuming that the r,g,b values of the most dominant colors of the photo is already stored in the database, this could be achieved for example by something like: SELECT * FROM colors WHERE ABS(dominant_r - :r) < :threshold AND ABS(dominant_g - :g) < :threshold AND ABS(dominant_b - :b) < :threshold i wonder, if it's anyhow possible to store the colors in sphinx and perform the querying using the sphinx search engine? thanks!

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  • Insert an ajaxified Webpart into an existing MOSS site

    - by mamoo
    Hi everybody, I need to code a webpart which purpose is to asynchronously fetch some documents and display them into an existing page. Unfortunately I have to face a lot of rescritcions and my struggle to find a solution seems useleess so far. 1) I cannot use Microsoft asp.net ajax 2) I must use Jsonp because the called service (page, whatever...) is outside the site's domain. That's not a big problem. 3) I have no possibility to alter the existing page code, so I cannot reference an external library such as JQuery. 4) For the same reason I have no possibility to call my methods on the window.onLoad event, so here the question is: how can I be sure that everything is correctly loaded before triggering my ajax call? 5) Since several instances of the same webpart can be placed into the same page, can there be some possible conflicts among the various js functions?

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  • Does a version control database storage engine exist?

    - by Zak
    I was just wondering if a storage engine type existed that allowed you to do version control on row level contents. For instance, if I have a simple table with ID, name, value, and ID is the PK, I could see that row 354 started as (354, "zak", "test")v1 then was updated to be (354, "zak", "this is version 2 of the value")v2 , and could see a change history on the row with something like select history (value) where ID = 354. It's kind of an esoteric thing, but it would beat having to keep writing these separate history tables and functions every time a change is made...

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  • UDP checksum calculation

    - by Deepak Konidena
    Hi, The UDP header struct defined at /usr/include/netinet/udp.h is as follows struct udphdr { u_int16_t source; u_int16_t dest; u_int16_t len; u_int16_t check; }; What value is stored in the check field of the header? How to verify if the checksum is correct? I meant on what data is the checksum computed? (Is it just the udp header or udp header plus the payload that follows it?) Thanks.

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  • facebook iframe size not working under https facebook connect

    - by acton
    Follow the following direction in: http://wiki.developers.facebook.com/index.php/Facebook_Connect_Via_SSL to use SSL version facebook connect, some of CanvasUtil functions regarding the resizing doesn't seem to work, the code is as following: FB_RequireFeatures(["Connect","Api","CanvasUtil"], function() { FB.Facebook.init(apiKey, channel,{ "doNotUseCachedConnectState":true }); FB.CanvasClient.getCanvasInfo(function(info){ alert("get it"); }); }); I don't see "get it". If I swtich back to http version, I could get the alert message and things are ok. Does anyone know how to make CanvasUtils from SSL facebook connect working? It might be a bug in facebook. Thanks a lot!

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  • How to determine if an application is using the GPU

    - by Andrew
    I'm looking for a way to determine how to know whether an application is using the GPU with Objective-C. I want to be able to determine if any applications currently running on the system have work going on on the GPU (ie: a reason why the latest MacBook Pros would switch to the discrete graphics over the Intel HD graphics). I've tried getting the information by crossing the list of active windows with the list of windows that have their backing location stored in video memory using Quartz Window Services, but all that does is return the Dock application and I have other applications open that I know are using the GPU (Photoshop CS5, Interface Builder), that and the Dock doesn't require the 330m.

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  • CruiseControl / NANT <copy> Task

    - by Striker
    We have a website with all the media (css/images) stored in a media folder. The media folder and it's 95 subdirectories contain about 400 total files. We have a Cruiscontrol project that monitors just the media directory for changes and when triggered copies those files to our integration server. Unfortunately, our integration server is at a remote location and so even when copying 2-3 files the NANT task is taking 4+ minutes. I believe the combination of the sheer number or directories/files and our network latency is causing the NANT task to run slow. I believe it is comparing the modified dates of both the local and remote copy of every file. I really want to speed this up and my initial thought was instead of trying to copy the whole media folder, can I get the list of file modifications from CruiseControl and specifically copy those files instead, saving the NANT task the work of having to compare them all for changes. Is there a way to do what I am asking or is there a better way to accomplish the same performance gains?

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  • dynamic array pointer to binary file

    - by Yijinsei
    Hi guys, Know this might be rather basic, but I been trying to figure out how to one after create a dynamic array such as double* data = new double[size]; be used as a source of data to be kept in to a binary file such as ofstream fs("data.bin",ios:binary"); fs.write(reinterpret_cast<const char *> (data),size*sizeof(double)); When I finish writing, I attempt to read the file through double* data = new double[size]; ifstream fs("data.bin",ios:binary"); fs.read(reinterpret_cast<char*> (data),size*sizeof(double)); However I seem to encounter a run time error when reading the data. Do you guys have any advice how i should attempt to write a dynamic array using pointers passed from other methods to be stored in binary files?

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  • ADO.NET Commands and SQL query plans

    - by ingredient_15939
    I've been reading up on query plans and how to minimise duplicate plans being created by SQL Server for the same basic query. For example, if I understand correctly, sending both these query strings will result in 2 different query plans: "SELECT FirstName FROM Members WHERE LastName = 'Lee'" "SELECT FirstName FROM Members WHERE LastName = 'MacGhilleseatheanaich'" Using a stored procedure avoids this, as the query plan is the same, and "LastName" is passed as a variable, eg: CREATE PROCEDURE sp_myStoredProcedure @LastName varchar(100) AS SELECT FirstName FROM Members WHERE LastName = @LastName Go Now, my question is whether the same applies to the Command object (eg. SQLClient.SQLCommand in ADO.NET). The reason I ask is that string parameters don't have a defined max length, as in the code above. Take the following code: MyCmd.CommandText = "SELECT FirstName FROM Members WHERE LastName = @LastName" MyCmd.Parameters.AddWithValue("@LastName", "Lee") Then later: MyCmd.Parameters.Clear() MyCmd.Parameters.AddWithValue("@LastName", "MacGhilleseatheanaich") Since @LastName hasn't been declared to SQL Server as having a defined maximum length, will SQL Server create a new query plan for every different value when I execute the command this way?

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  • md5 hash for file without File Attributes

    - by Glennular
    Using the following code to compute MD5 hashs of files: Private _MD5Hash As String Dim md5 As New System.Security.Cryptography.MD5CryptoServiceProvider Dim md5hash() As Byte md5hash = md5.ComputeHash(Me._BinaryData) Me._MD5Hash = ByteArrayToString(md5hash) Private Function ByteArrayToString(ByVal arrInput() As Byte) As String Dim sb As New System.Text.StringBuilder(arrInput.Length * 2) For i As Integer = 0 To arrInput.Length - 1 sb.Append(arrInput(i).ToString("X2")) Next Return sb.ToString().ToLower End Function We are getting different hashes depending on the create-date and modify-date of the file. We are storing the hash and the binary file in a SQL DB. This works fine when we upload the same instance of a file. But when we save a new instance of the file from the DB (with today's date as the create/modify) on the file-system and then check the new hash versus the MD5 stored in the DB they do not match, and therefor fail a duplicate check. How can we check for a file hash excluding the file attributes? or is there a different issue here?

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  • New to AVL tree implementation.

    - by nn
    I am writing a sliding window compression algorithm (LZ77) that searches for phrases in a "moving" dictionary. So far I have written a BST where each node is stored in an array and it's index in the array is also the value of the starting position in the window itself. I am now looking at transforming the BST to an AVL tree. I am a little confused at the sample implementations I have seen. Some only appear to store the balance factors whereas others store the height of each tree. Are there any performance advantage/disadvantages of storing the height and/or balance factor for each node? Apologies if this is a very simple question, but I'm still not visualizing how I want to restructure my BST to implement height balancing. Thanks.

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  • C# check age of db Item

    - by Jacob Huggart
    Hello All, I am using C# to send an email with an encrypted link. The encrypted portion of the link contains a time stamp that needs to be used to verify if the link is more than 48 hours old. How do I compare an old time to the current time and find out if the old time is more than 48 hours ago? This is what I have now: var hours = DateTime.Now.Ticks - data.DTM.Value.Ticks; //data.DTM = stored time stamp if (hours.CompareTo(48) > 1) //if link is more than 48 hours old, deny access. return View("LinkExpired"); } Comparing ticks seems like it's a very backwards way to do it and I know that the hours.CompareTo would have to be adjusted if I stick with comparing ticks. How can I just get a value for the number of hours that have passed?

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  • Guide for http://www.ch-werner.de/javasqlite java wrapper library for SQlite?

    - by Tom Nielsen
    I'm working on a large computer science school project using java and SQlite. After finding out that the zentus.org wrapper errors on databases with ON DELETE and ON UPDATE clauses set, I have changed to the other wrapper found at http://www.ch-werner.de/javasqlite. However, I find the documentation lacking somewhat when trying to get an overview on how it works and how to use it, and the function descriptions are very very short, and you have to scan through every function and somewhat guess how they work and what they do. I wasn't able to find any guides on google on how to use it. My question: Does anyone know a link for a guide or tutorial for the ch-werner.de/javasqlite wrapper, or else can give me a basic code example, or give a quick overview of querying the database and the most used functions, and how to use them?

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  • Creating a child process on Unix systems?

    - by Hakan Svensson
    I'm trying to create a child process in another process. I am writing both the programs in C language. First I write a dummy process which will be the child process. What it is doing is only to write a string on the screen. It works well on its own. Then I write another program which will be the parent process. However, I can't make it happen. I'm trying to use fork and execl functions together, but I fail. I also want the child process does not terminate until the parent process terminates. How should I write the parent process? Thanks.

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  • Clojure: Equivalent to Common Lisp READ function?

    - by jkndrkn
    Hi there. When I want to read in an S-expression stored in a file into a running Common Lisp program, I do the following: (defun load-file (filename) "Loads data corresponding to a s-expression in file with name FILENAME." (with-open-file (stream filename) (read stream))) If, for example, I have a file named foo.txt that contains the S-expression (1 2 3), the above function will return that S-expression if called as follows: (load-file "foo.txt"). I've been searching and searching and have not found an equally elegant solution in Clojure. Any ideas? Thanks!

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  • Oracle EXECUTE IMMEDIATE changes explain plan of query.

    - by Gunny
    I have a stored procedure that I am calling using EXECUTE IMMEDIATE. The issue that I am facing is that the explain plan is different when I call the procedure directly vs when I use EXECUTE IMMEDIATE to call the procedure. This is causing the execution time to increase 5x. The main difference between the plans is that when I use execute immediate the optimizer isn't unnesting the subquery (I'm using a NOT EXISTS condition). We are using Rule Based Optimizer here at work. Example: Fast: begin package.procedure; end; / Slow: begin execute immediate 'begin package.' || proc_name || '; end;'; end; /

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