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• Rails - single ID for multiple models

  - by user352351

  I'm building an app which will allow a user to scan the barcode on a 'shelf', 'box' or 'product' which will then bring up that particular item or all the associated items. As these are all separate models with their own ID's, I need a global ID table. I was thinking of a polymorphic table called 'barcodes' barcodes id barcode_number barcodable Is there an easy way to do this? Or is polymorphic the best way?

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• What decryption should i use between my Android app and ASP.NET Webservice?

  - by RickardP

  I am searching a good way to encrypt and decrypt user authentication data between my Android app and my ASP.NET Webservice built in C#. I want to do a user registration on my Android app and send the authentication to the back-end server that is a ASP.NET Webservice built in C# and then every time the app calls the webservice it should send a hashed string with authentication information so webservice now what user it is. What is the best practice for this and have i missed something, give me some ideas please!

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• How to connect my APP to SQL Server?

  - by salhzmzm

  Hi I have 1 PC (MS Server 2003 + MS SQL Server 2008) and 2 PCs (MS SP2 + my APP) how I can let my APP connects to sql server 2008 on other PC My APP will connect to server to store data in SQL Server 2008 and read/delete/edit (basic operations) what is the best way to do that? NOTE: my APP is written in C# (.NET Platform)

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• How do I create a GUI programme most easily in C?

  - by user198729

  I'm a windows XP user, with not much experience in c developing. What's the best way to create GUI application in C?

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• Function equivalent to sprintf() with maximum number of characters to be copied?

  - by Tommy

  function(char* name) { char sql[50]; sprintf(sql, "select %s;", name); } What's the best way to make sure only 50 chars of name are copied to sql in the case name is larger than what sql can hold? (sprintf with a N parameter?) Thank You.

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• Remove Substring from NSstring

  - by user3037815

  I see so many solution , but none of them was matching my problem . As i am new to iOS development . I have a String abc/_api/web/GetFolderByServerRelativeUrl('Documents/Root Folder/Level 1/Level 2/Level 1-1/Level 1/')/folders. I want to remove Remove Substring after last "/" for example my new string should look like this. abc/_api/web/GetFolderByServerRelativeUrl('Documents/Root Folder/Level 1/Level 2/Level 1-1/Level 1/) Can someone suggest me the best way to achieve this , thanks ,

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• Join two results sets to make one result set in T-SQL

  - by Michael Kniskern

  What would be the best approach to combine the two results sets in one result set in T-SQL? SQL statment #1: SELECT COUNT(t.col1) as 'Number of Responses', t.col2 as 'Department' FROM table t WHERE col3 IS NOT NULL GROUP BY t.col1 ORDER BY t.col1 SQL Statment #1: SELECT COUNT(t.col1) as 'Total number of participants', t.col2 as 'Department' FROM table t GROUP BY t.col1 ORDER by t.col1 Desired result set Number of Responses | Total Number of participants | Department

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• Equivalent of PHP "echo something; exit();" with Python/Django?

  - by Infinity

  Sometimes the best way to debug something is to print some stuff to the page, and exit(), how can I do this in a Python/Django site? e.g. in PHP: echo $var; exit(); Thanks

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• Will the Windows service be 64-bit if installed from 64-bit process?

  - by nhaa123

  Hi, Just wondering, if I install a Windows service from 64-bit process (service code embedded in the process), is the service itself Win32 service or can services be 64-bit as well? I need to know this since my service would inject code to Win32-process, so due to WOW64 restrictions the service-process itself cannot be 64-bit. Best regards, nhaa123

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• How to get ordered qty of product in front-end?

  - by alex

  I display a best-sell list in front-end,Now I also want to show the QTY that how many already sell for this product,How do I get the QTY ? And if the product is a "Configurable Product",How do I get the QTY ?

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• unique substrings using suffix tree

  - by user1708762

  For a given string S of length n- Optimal algorithm for finding all unique substrings of S can't be less than O(n^2). So, the best algorithm will give us the complexity of O(n^2). As per what I have read, this can be implemented by creating suffix tree for S. The suffix tree for S can be created in O(n) time. Now, my question is- How can we use the suffix tree for S to get all the unique substrings of S in O(n^2)?

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• Sending complex arguments to a java program

  - by jax

  I need to supply a binary license file to a java program. What is the best way to do this? The data will change all the time so I don't want to have to write a file and then read it back every time. The Data is coming from a PHP page

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• Showing categories and subcategories in a menu

  - by jasmine

  What is the best way for Showing categories and subcategories in a menu with php? I have found a function here, But I cant understand the logic of $has_childs . Thanks in advance

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• Database Design Question

  - by Soo

  Ok SO, I have a user table and want to define groups of users together. The best solution I have for this is to create three database tables as follows: UserTable user_id user_name UserGroupLink group_id member_id GroupInfo group_id group_name This method keeps the member and group information separate. This is just my way of thinking. Is there a better way to do this? Also, what is a good naming convention for tables that link two other tables?

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• Java Programing Requirments

  - by hosseinsinohe

  Hi All I am a C sharp Programmer.I Want Learn Java to Implement My Windows Application.But i Don't know What IDE and What Tools Can Help me. Please Help me to Choose Best PlatForm And IDE and Other Tools.

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• c#: why can't i do a Messagebox.Show(some_int) ?

  - by every_answer_gets_a_point

  MessageBox.Show((some_string.Length).ToString); i am getting two errors for this: Error 1 The best overloaded method match for 'System.Windows.Forms.MessageBox.Show(string)' Error 2 Argument '1': cannot convert from 'method group' to 'string' can someone tell me how to do this correctly?

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• Organize address cache

  - by Orsol

  Hi, I need to organize cache in mySql database for address - coordinates. What is the best practice to store address? Do i need to compress address string or use it as is? edit: Ok, let's I reassert my question. How to store long (up to 512) string in database if I need to search by exactly this string in future.

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• How can I have a submit button (in grails) update a specific target frame?

  - by pennstatephil

  I'd like to use something like the "update=" parameter of a <g:remoteLink> with a <g:actionSubmit>, so that when the submit button is clicked, it will update a specific target. What's the best way to accomplish this?

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• How to track how many times an iPhone app is opened?

  - by Jason

  I am building an iphone app and would like to keep track of how many times it has been opened so that I can prompt the user to do certain actions after it has been opened X number of times. I have thought about storing a variable in Core Data which I update every time it is opened, but this seems like a waste since it is a singleton data, not multiple instances of an object. What is the best way to store data like this and access it without slowing down the app opening time?

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• Script to parse emails for attachments

  - by Swanny

  I am looking for a way to monitor a Linux mbox email account, when an email arrives I would like to download an attachment from the email and save the attachment (CSV file) so that it may be used by a PHP script. What would be the best way of going about this? I have looked at PHP's IMAP functions but this does not appear to be the most appropriate method when a simple bash script may be all that is required?

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• Stuck. I need some VBA code to insert double-quotes around strings in each cell in an excel range.

  - by cmm

  I'm familiar with VB.NET, but VBA in excel has me stumped. With my best attempt, I get a "Type mismatch" error: Sub AddQuotes() For Each x In Range("List").Cells x.Text = "*" * " & x.text & " & "*" Next End Sub

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• haskell check for user input errors

  - by snorlaks

  Hello. Im writing app in haskell and I would like to know that is the best way to check if users input is ok for example is it int when Im asking for int or if its date when asking for well formed date ? Thanks for help

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• How to share an array in Python with a C++ Program?

  - by mellort

  I two programs running, one in Python and one in C++, and I need to share a two-dimensional array (just of decimal numbers) between them. I am currently looking into serialization, but pickle is python-specific, unfortunately. What is the best way to do this? Thanks

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• How to "scan" a website (or page) for info, and bring it into my program?

  - by James

  Well, I'm pretty much trying to figure out how to pull information from a webpage, and bring it into my program (in Java). For example, if I know the exact page I want info from, for the sake of simplicity a Best Buy item page, how would I get the appropriate info I need off of that page? Like the title, price, description? What would this process even be called? I have no idea were to even begin researching this.

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• Moving a UIIMageView outside of a UIScrollView

  - by user359570

  Hello, At the bottom part of my main UIView, I've an UIScrollView with an UIImageView inside. I'd like to move the UIIMageView from the UIScrollView to the top part of my UIView. I'm able to move my UIImageView inside the UIScrollView, but outside, I can't. The UIImageView remains in the UIScrollView, it's parent. Any idea? Thanks in advance for any help. Best regards, Alx

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