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• White Label Ecommerce app. Shared or Individual dbs

  - by MetaDan

  Currently I'm working with an in house white label cms that we resell to multiple clients and it all runs from the same box/db. I'm just looking at converting this to have an ecommerce version that we'll run alongside it. I'm wondering whether there will be an issue keeping all the products/categories/orders in one db or whether it would be advisory to separate each instance of the site into its own db for this. These white label instances will only be sold to smaller companies that probably wont have masses of traffic/products and are looking for a simple ecommerce site. Anything larger will definitely get its own hosting and db. But for smaller scale stuff do you think a single db will be ok?

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• If don't own proprietary database engine, what is best way to convert database to mysql?

  - by John Robertson

  I work for a very small company. I was recently faced with the question of whether there is a good way to convert a proprietary database to a MySQL database without owning the proprietary database engine e.g. if one is given a large oracle database file (or choose your favorite proprietary database engine format), but doesn't have a license for the oracle database engine, is there a good, perfectly reliable way to convert it to a MySQL database format that can be read with the MySQL database engine? My question is very vague as to which proprietary format is the source just because there would be multiple sources and it looks like they would be "various and sundry". My suspicion is that there is no perfectly reliable way, especially for a wide variety of proprietary databases. If there are a few proprietary formats for which this is possible, I would still be interested in knowing, though "various and sundry" is probably the real issue. Minimizing cost, effort and correct conversion are key so I think this is probably is the not possible list. -John

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• How to parse a tar file in C++

  - by Brendan Long

  What I want to do is download a .tar file with multiple directories with 2 files each. The problem is I can't find a way to read the tar file without actually extracting the files (using tar). The perfect solution would be something like: #include <easytar> Tarfile tar("somefile.tar"); std::string currentFile, currentFileName; for(int i=0; i<tar.size(); i++){ file = tar.getFileText(i); currentFileName = tar.getFileName(i); // do stuff with it } I'm probably going to have to write this myself, but any ideas would be appreciated..

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• ASP.Net MVC - which is the best approach for multi select grouping using JQuery Dialog

  - by Rajeesh

  This is my scenario I have an view(page) with list of items, a user could select single or multiple items from this page and click on a "Add to Group" button. Then a modal dialog(JQuery dialog) will be shown, from that he could select group, then press the add button. Which causes the items selected in the parent page is added to that particular group. So, which is the best way to pass the selected items to the modal pop-up? Though the query string ? - what happens if the no:of items selected is large, will the url support that much characters Keep the list in the parent page in a javascript variable and return the selected group from the modal pop-up? Or is there is any other better option? Thanks, Rajeesh

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• Error in eclipse: "The project cannot be built until build path errors are resolved"

  - by Darkphenom

  I am a CS student learning java so I do some work at home and at college on a mixture of linux and windows. I have a problem after copying a new project into the eclipse workspace. The project shows up but with a red exclamation mark and an error saying: "The project cannot be built until build path errors are resolved" Can somebody help me out with this? I tried this http://www.scottdstrader.com/blog/ether_archives/000921.html but it didn't work. Also, are there any good ways of syncing an eclipse workspace across multiple computers?

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• Efficient persistent storage for simple id to table of values map for java

  - by wds

  I need to store some data that follows the simple pattern of mapping an "id" to a full table (with multiple rows) of several columns (i.e. some integer values [u, v, w]). The size of one of these tables would be a couple of KB. Basically what I need is to store a persistent cache of some intermediary results. This could quite easily be implemented as simple sql, but there's a couple of problems, namely I need to compress the size of this structure on disk as much as possible. (because of amount of values I'm storing) Also, it's not transactional, I just need to write once and simply read the contents of the entire table, so a relational DB isn't actually a very good fit. I was wondering if anyone had any good suggestions? For some reason I can't seem to come up with something decent atm. Especially something with an API in java would be nice.

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• direct access to vector elements similar to arrays

  - by mixm

  hi. im currently creating a tile based game, where elements of the games are placed in four different vectors (since there are multiple game objects with different properties, hence stored in different vectors). these game elements themselves contain x and y coordinates similar to how they are stored in a two dimensional array. i was wondering if there was a way to access these vector elements similar to two dimensional array access (currently i am implementing an for loop to cycle the elements while comparing its coordinates). this kinda sucks when i need to refresh my display at every game cycle (since the large number of comparisons and loops). im implementing this in java btw.

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• Determining if a coordinate is on a line

  - by TGCBraun

  I´m coding a little app that allows the user to draw multiple shapes and then remove or resize them. It´s working perfectly on rectangles and ovals, but I´m having issues with lines. Here´s a method that I wrote to find if the clicked spot on the screen is part of a specific line: public boolean containsLocation(int x, int y) { int m = (getY2() - getY()) / (getX2() - getX()); int b = getY() - (m * getX()); if (y == (m * x) + b) { return true; } return false; I´m using the famous y = mx + b formula and replacing y and x to find if the clicked spot is part of the line. The problem is when I click on the screen to remove the line, it only works if I click on the very fist coordinate (x,y) where the line starts. Nothing happens when I click anywhere else along the line. Can anyone shed a light on what I´m doing wrong? Thanks a lot.

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• Django get_FOO_display and distinct()

  - by datakid

  I've seen answers to both halves of my question, but I can't work out how to marry the two. I have a book model, and a translatedBook model. The translatedBook has a langage set up as model choices in the usual way: LANGUAGES = ( (u'it', u'Italian'), (u'ja', u'Japanese'), (u'es', u'Spanish'), (u'zh-cn', u'Simplified Chinese'), (u'zh-tw', u'Traditional Chinese'), (u'fr', u'French'), (u'el', u'Greek'), (u'ar', u'Arabic'), (u'bg', u'Bulgarian'), (u'bn', u'Bengali'), etc I know that to get "Italian" I have to do translatedBook.get_language_display on a Book object. But how do I get a list of distinct languages in their long format? I've tried: lang_avail = TargetText.objects.values('language').distinct().order_by('language') lang_avail = TargetText.objects.distinct().order_by('language').values('language'). lang_avail = TargetText.objects.all().distinct('language').order_by('language') but I can't seem to get what I want - which is a list like: "English, Italian, Simplified Chinese, Spanish" The final lang_avail listed above didn't return the list of 5, it returned the list of 355 (ie, # of books) with multiple repeats....

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• hOW TO INSERT DATA FROM ASP.NET TEXTBOX TO TWO DIFFERENT TABLE ON SINGLE BUTTON CLICK EVENT ?

  - by user559800

  I M USING THAT CODE TO INSERT INTO SINGLE TABLE ! HOW TO USE THIS CODE TO INSERT THE TEXTBOX TEXT TO MULTIPLE TABLES OF SAME COLUMN ON SINGLE BUTTON CLICK EVENT IN VB.NET ? Imports System.Data.SqlClient Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click Dim con As New SqlConnection Dim cmd As New SqlCommand con.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\ASPNETDB.MDF;Integrated Security=True;User Instance=True" con.Open() cmd.Connection = con cmd.CommandText = "INSERT INTO a1_ticket (seat_remain) VALUES('" & Trim(Label1.Text) & "')" cmd.ExecuteNonQuery() con.Close() End Sub

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• Best OpenID library for Java

  - by Adam Crume

  I want users to be able to log into my website with OpenID, but I don't know which library to use. I know which ones are out there, but I would like to know which one would be best. I'm running JOnAS, but no web framework (no Spring, Struts, GWT, etc.). (Please don't chastise me for not using a web framework. I have my reasons.) For what it's worth, my web site is broken into multiple WARs, and I would prefer something that works well in that situation, but that's not a big deal. Does anyone have experience with the different libraries? Any experiences or wisdom you can share?

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• documentation for a package in php?

  - by ajsie

  so in a folder PayPal i've got multiple classes for using their API. i want to make a documentation for how to use all the classes in a sequential way. so here is my questions: how do i create a package for them? cause above each class i used phpdoc tag @package PayPal. is a package in php just a folder? where do i put documentation for the package? there are best practices for this? a file in the folder named ...? how to put class- or package-specific examples, eg. step 1 bla bla, step 2 bla bla? thanks!

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• Single OpenID Across Sub-Domains

  - by rockinthesixstring

  I'm using OpenID much the same as here on StackOverflow to authenticate my users. What I really need to be able to do though is have that OpenID work across all sub-domains of my site. The site behaves much the same as Kijiji in that each region has it's own subdomain calgary.example.com toronto.example.com vancouver.example.com etc When a user logs into "calgary" and later logs into "toronto", they will be forced to "give permission" at the provider, thus resulting in a new OpenID and resulting also in a new login. My app "can" have multiple OpenID's under one account, but that would become cumbersome to manage. Is there a way to have the provider link up to the top level domain and subsequently work across all sub-domains? I'm using DotNetOpenAuth.

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• Reducing a normalized table to one value

  - by Dio

  Hello, I'm sure this has been asked but I'm not quite sure how to properly search for this question, my apologies. I have two tables, Foo and Bar. For has one row per Food, bar has many rows per food matching descriptors. Foo name id Apple 1 Orange 2 Bar id description 1 Tasty 1 Ripe 2 Sweet etc (sorry for the somewhat contrived example). I'm trying to return a query where if, for each row in Foo, Bar contains a descriptor in ('Tasty', 'Juicy') return true ex: Output Apple True Orange False I had been solving this somewhat trivially with a case when I only had one item to match select Foo.name, case bar.description when 'Tasty' then True else 'False' end from Foo left join Bar on foo.id = bar.id where bar.description = 'Tasty' But with multiple items, I keep ending up with extra rows: Output Apple True Apple False etc etc Can someone point me in the right direction on how to think about this problem or what I should be doing? Thank you.

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• Why is forwarding variadic parameters invalid?

  - by awesomeyi

  Consider the variadic function parameter: func foo(bar:Int...) -> () { } Here foo can accept multiple arguments, eg foo(5,4). I am curious about the type of Int... and its supported operations. For example, why is this invalid? func foo2(bar2:Int...) -> () { foo(bar2); } Gives a error: Could not find an overload for '_conversion' that accepts the supplied arguments Why is forwarding variadic parameters invalid? What is the "conversion" the compiler is complaining about?

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• Stacking a View with the Editor Area?

  - by Patrick

  Hello everybody, :-) Is it possible, when developing an Eclipse RCP Application, to stack a view with the editor area? Like this? http://www.fotos-hochladen.net/stackingaviewwithane9e1fdbvp.png I have multiple lists / tables. I want to create a kind of preview composite. When an Item on a list is selected by single mouse click, i want my preview composite to show the data of the item. If the user double clicks an item, i want to open an editor in the stack behind the preview composite. Is there anyway to achieve this? Thanks Patrick :-)

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• standard debugging way for javascript/jquery

  - by ZX12R

  This is my usual way to debug javascript. Include alert(0); to break the flow and find out what is happening. sometimes when i need multiple check points i do alert('the flow is now in function 1'); alert('the flow is now in function 2'); or sometimes just alert('success'); i would like to know if there is any standard way for debugging adopted as i am finding my current method very intrusive. thanks in advance..:)

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• Parent/master project in git

  - by jriff

  I have a project "A" that is a Git repository. I would like to be able to make multiple copies of project A (B and C), and modify them for clients. "A" is the master so sometimes when I do new functionality i would like to be able to pull them into B or C. But some commits should just stay in A and only be used if making a new clone. How do I do that with Git? That is: how to copy A? (Clone?) how to get specific commits into B and C? Please keep in mind that this all happening locally - not on GitHub. I use OS X.

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• populate object graph from database

  - by Rama

  Hi, I would like to know the best way to populate an object that has a collection of child objects and each child object may inturn have a collection of objects, from database without making multiple calls to the database to get child objects for each object. basically in hierarchical format something like for example a customer has orders and each order has order items. is it best to retrieve the data in xml format (SQL server 2005), or retrieve a dataset by joining the related tables together and then map that the data to the object? thanks in advance for your help.

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• Conditional Batch file renaming with mysql data

  - by Paul Stevens

  Hello, I wonder if anyone knows how could I rename multiple files, all of them originally named with same structure, and add some data extracted from a mysql DB according to specifics rules. For example I have 500 files named with this vars: ID NAME ADDRESS PHONE.wav = 1234567 PAULSIMON WESTDR122 9942213456.wav Now I need to rename files taking some data from the databases for each file, and append the data from a query appended to the filename. For example add the data resulting from a query Where some conditions match, and the data to build the query is taked from original file name, as ID or NAME. i other words, lets say that I want to build a query taking ID & NAME from file 1234567 PAULSIMON WESTDR123 9942213456.wav as WHERE statements to take another value as BirthDATE and add this to new filename, so final result should be: ID NAME ADDRESS PHONE BIRTHDATE.wav I will appreciate any help on this. I need this to be done on a LINUX server.

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• Single windows service to provide access to cached data?

  - by Matthias

  I need a solution where I have a single windows service providing access to cached data to various consumers: To an MVC web application, a .Net Assembly (COM interop) used within an classic ASP page, other windows services, a windows forms application. So the data must be accessible from various processes. The data being cached is read-only. For now, all processes are located on the same machine. The environment is .net framework 3.5 and c#. My question is, how can multiple appdomains/processes retrieve cached data from a single windows service?

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• How exactly does a program convert everything to UTF-8 internally?

  - by xyld

  does it use setlocale()? does it assume utf-8 for all input strings when in a UTF-8 locale? I understand what unicode is and how it is related to utf-8, but how does one "convert to it" internally with all their strings? How does it convert all input strings to UTF-8? Does it use a C library function? Does the current working locale have to be a UTF-8 locale? UPDATE: if specific technical details could be in your answer, that would be great as that is more along the lines of what I'm looking for. I already understand the reasons for using UTF-8 internally and why it makes dealing with multiple locales much simpler.

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• preg_replace only replaces first occurrence then skips to next line

  - by Dom

  Got a problem where preg_replace only replaces the first match it finds then jumps to the next line and skips the remaining parts on the same line that I also want to be replaced. What I do is that I read a CSS file that sometimes have multiple "url(media/pic.gif)" on a row and replace "media/pic.gif" (the file is then saved as a copy with the replaced parts). The content of the CSS file is put into the variable $resource_content: $resource_content = preg_replace('#(url\((\'|")?)(.*)((\'|")?\))#i', '${1}'.url::base(FALSE).'${3}'.'${4}', $resource_content); Does anyone know a solution for why it only replaces the first match per line?

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• Core Data - Relationship to dissimilar entities

  - by carotene

  Suppose I have the following data model: Entity Person Attribute name String Attribute personType String Attribute dailyRecords Entity CarpenterDailyRecord Attribute numberOfNailsHammered Int Attribute picNameOfFinishedCabinet String Entity WindowWasherDailyRecord Attribute nameOfBuildingWashed String Attribute numberOfWindowsWashed Int I would like to establish a to-many relationship between the Person.dailyRecords and 1 of the daily record entities (which changes depending on the person type). Of course, i could create a CarpenterPerson and WindowWasher entity which each points to it's unique daily record structure, but i have to group people together in my app somehow. so if i do a Group Entity: Entity Group Attribute people array i'm still stuck. how do i point to multiple & different Person entities? There must be an obvious answer, it's just i'm so new to all of this. thanks!

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• How to prevent filename expansion in for loop in bash

  - by cagri

  In a for loop like this, for i in `cat *.input`; do echo "$i" done if one of the input file contains entries like *a, it will, and give the filenames ending in 'a'. Is there a simple way of preventing this filename expansion? Because of use of multiple files, globbing (set -o noglob) is not a good option. I should also be able to filter the output of cat to escape special characters, but for i in `cat *.input | sed 's/*/\\*'` ... still causes *a to expand, while for i in `cat *.input | sed 's/*/\\\\*'` ... gives me \*a (including backslash). [ I guess this is a different question though ]

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