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  • How to manage multiple versions of the same record

    - by Darvis Lombardo
    I am doing short-term contract work for a company that is trying to implement a check-in/check-out type of workflow for their database records. Here's how it should work... 1) A user creates a new entity within the application. There are about 20 related tables that will be populated in addition to the main entity table. 2) Once the entity is created the user will mark it as the master. 3) Another user can make changes to the master only by "checking out" the entity. Multiple users can checkout the entity at the same time. 4) Once the user has made all the necessary changes to the entity, they put it in a "needs approval" status. 5) After an authorized user reviews the entity, they can promote it to master which will put the original record in a tombstoned status. The way they are currently accomplishing the "check out" is by duplicating the entity records in all the tables. The primary keys include EntityID + EntityDate, so they duplicate the entity records in all related tables with the same EntityID and an updated EntityDate and give it a status of "checked out". When the record is put into the next state (needs approval), the duplication occurs again. Eventually it will be promoted to master at which time the final record is marked as master and the original master is marked as dead. This design seems hideous to me, but I understand why they've done it. When someone looks up an entity from within the application, they need to see all current versions of that entity. This was a very straightforward way for making that happen. But the fact that they are representing the same entity multiple times within the same table(s) doesn't sit well with me, nor does the fact that they are duplicating EVERY piece of data rather than only storing deltas. I would be interested in hearing your reaction to the design, whether positive or negative. I would also be grateful for any resoures you can point me to that might be useful for seeing how someone else has implemented such a mechanism. Thanks! Darvis

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  • How to filter and format email text and forward to customers?

    - by understack
    I get poorly formatted invoice related email from my payment gateway. I wan to automatically format these emails to make them more readbale. Mostly I want to remove few 'fixed' lines which are always present in email body. Do I need to run some sort of PHP process to do it? Is it possible to do it on email server itself? EDIT I have got cpanel access.

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  • Visual studio 2010: cannot connect for any online resource

    - by KentZhou
    Visual studio 2010 Premium installed on Widnows 7: when try to connect for online gallery or online template, give me error like: Cannot search for online exensions because an error occured while trying to contact the server and ask me enable access to extensions on the vistual studio gallery .... It did enabled in Extension Manager Tools/Options page. Internet connection was fine. Can't know why. On another computer: Windows 7, VS2010 utilmate trail version: this was fine.

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  • practicing c programming

    - by hopefulLLl
    greetins everyone!! i'm a student learning c language and i need to test my c skills.. so can anyone suggest me any way that where can i find questions related to c programmes..i.e. writing c programmes!! from simple to complex(topic wise)..with solutions! thanx

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  • Windows Azure SDK - ASPProviders example

    - by David
    Hi, since the new SDK 1.1 is missing the tutorial for "ASPProviders", i am currently asking myself how i would implement a "azure session state provider" ( this is the path in the "old" SDK: C:\Program Files\Windows Azure SDK\v1.0\Samples\AspProviders ) Related threads: http://stackoverflow.com/questions/1023108/how-does-microsoft-azure-handle-session-state http://social.msdn.microsoft.com/Forums/en-US/windowsazure/thread/2d1340ed-0ad0-456a-b069-aa6b85672102/ Has anyone an idea or even the old example project and could post some snippets of the config here?

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  • Restrict number of lines in html JLabel

    - by Mike
    I have a JLabel that needs to display some html-formatted text. However, I want to restrict this to being 4 lines long (and if so, provide a button to see everything). So far, I've tried setting the maximum size manually or via a layout manager. However, both of these solutions can cause part of a line to be displayed.

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  • Are there Python ORMs out there that support multiple independent databases concurrently in use?

    - by sdt
    I'm writing an application in Python where I wish to use sqlite as the backing store for documents edited by the app, with documents generally living in memory, but being saved to disk-based databases when the application saves. Ideally I'd like to use something like an ORM to make access to the data from my Python application code simple. Unfortunately it seems like the majority of Python ORMs, including SQLAlchemy, SQLObject, Django, and Storm, associate the database connection (or engine or whatever) with the classes representing table data, rather than instances of those classes. This restricts these ORMs to working with a single database connection across all instances. Since I'd like to support having multiple documents open simultaneously, this isn't going to work for me. Are there any ORMs out there that support this usage model in Python? Bazaar seems to support this, but it's quite out of date, and at first glance appears to have some other shortcomings. Thanks for any suggestions!

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  • How can i edit OSGi bundles manifest file in Netbeans 6.9?

    - by Deniz Acay
    I'm using Netbeans 6.9 RC2 and Maven OSGi Bundle project template. Actually i dont want to test my bundles in Netbeans environment so i copy the jar file to the OSGi container directory and install it from command line. But when i want to see its headers from OSGi console, i see a lot of Netbeans related unnecessary stuff. Is it possible to edit the contents of the manifest file in Netbeans?

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  • Finding a small image in a bigger one

    - by tur1ng
    Given an image with a large dimension ( 1.000 x 1.000). What is a good approach to find a small image (e.g. 50 x 50) in the big one? The smaller image can be rotated and differ in the size, but only with a 1:1 ratio. It's not related to any programming language - I'm just interested in pattern recognition. Thank you.

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  • Composite Views and View Controllers

    - by BillyK
    Hi, I'm somewhat new to Android and am in the process of designing an application with a couple fairly complex views. One of the views is intended to involve a complex view displaying information associated with model objects and segregated into several different views; the navigation of which is meant to be achieved using sliding effects (i.e. sliding one's finger across the screen to traverse from one screen to the next, etc). The view itself will be used to host multiple sets of views for varying types of model objects, but with a general structure that is reused between them all. As a rough example, the view might come up to display information about a person (the model object), displaying several details views: a view for general information, a view displaying a list of hobbies, and a view displaying a list of other individuals associated with their social network. The same general view, when given a model object representing a particular car would give several different views: A general view with details, A view containing photo images for that vehicle, a view representing locations which it could be purchased from, and a view providing a list of related cars. (NOTE: This is not the real data involved, but is representative of the general intent for the view). The subviews will NOT cover the entire screen real-estate and other features within the view should be both visible and able to be interacted with by the user. The idea here is that there is a general view structure that is reusable and which will manage a set of subviews dynamically generated based upon the type of model object handed to the view. I'm trying to determine the appropriate way to leverage the Android framework in order to best achieve this without violating the integrity of the framework. Basically, I'm trying to determine how to componentize this larger view into reusable units (i.e. general view, model-specific sub-view controllers, and individual detail views). To be more specific, I'm trying to determine if this view is best designed as a composite of several custom View classes or a composite of several Activity classes. I've seen several examples of custom composite views, but they typically are used to compose simple views without complex controllers and without attention to the general Activity lifecycle (i.e. storing and retrieving data related to the model objects, as appropriate). On the other hand, the only real example I've seen regarding a view comprised of a composite of Activities is the TabActivity itself, and that isn't customizable in the fashion that would be necessary for this. Does anyone have any suggestions as to the appropriate way to structure my view to achieve the application framework I'm looking for? Views? Activities? Something else? Any guidance would be appreciated. Thanks in advance.

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  • applicaion and local service lifetime

    - by rayman
    As i understoond, if we have local service of some application, as soon as the application goes down, the service goes down as well - is that true? and if it is, how can we make an application to run all the time without go down? (without using Alarm manager). i though that the purpose of local service is to answer this situation: " to make the application everlasting" please, if some1 could explain me this better, thanks, ray.

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  • Simplest way to use NSTableView?

    - by Nick Brooks
    Can I use NSTableView like I've used ListView in Windows? By that I mean JUST adding rows to the view. I need to display a very simple two columned table and I don't want to write all this data related crap. Can I just 'add' stuff to a table view? If not what is the simplest way to do what I'm trying to do (preferably without data sources)?

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  • Is Horde an acceptable framework for PHP groupware development?

    - by Glenn
    I'm working on this project and the customer wants it to integrate with a groupware package including bulk email, calendars, and task lists. He has heard about Horde and Horde GroupWare and is interested in using that. Do you have any developer related experience with Horde? If so, then what were your findings? Did you find it to be stable? What about the framework/API? Was it easy to integrate with?

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  • correct approach to store in database

    - by John
    I'm developing an online website (using Django and Mysql). I have a Tests table and User table. I have 50 tests within the table and each user completes them at their own pace. How do I store the status of the tests in my DB? One idea that came to my mind is to create an additional column in User table. That column containing testid's separated by comma or any other delimiter. userid | username | testscompleted 1 john 1, 5, 34 2 tom 1, 10, 23, 25 Another idea was to create a seperate table to store userid and testid. So, I'll have only 2 columns but thousands of rows (no of tests * no of users) and they will always continue to increase. userid | testid 1 1 1 5 2 1 1 34 2 10

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  • Why an ASP.NET web site gets recompiled when renaming or deleting a folder inside

    - by amartynov
    Hi everybody, I develop a simple file manager inside an ASP.NET Web site (not web application). I notice that every time I rename or delete a folder, the site gets recompiled - i.e. the very next web request after delete or rename operation takes considerably much time to execute. It's only true for folders, not for files. Why does this occur? P.S. I use WebDev server (Cassini), haven't tested in on IIS yet.

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  • How to change a Window Owner using its handle

    - by Ricky AH
    I want to make a .NET Form as a TopMost Form for another external App (not .NET related, pure Win32) so it stays above that Win32App, but not the rest of the apps running. I Have the handle of the Win32App (provided by the Win32App itself), and I've tried Win32 SetParent() function, via P/Invoke in C#, but then my .NET Form gets confined into the Win32App and that's not what I want.

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  • Expose subset of a class - design question

    - by thanikkal
    Suppose i have a product class with about close to 100 properties. Now for some operations (Say tax calculation) i dont really need this bulky product type, rather only a subset that has price related properties. I am not sure if i should create different snap shots(class) of products that just has the properties that i am interested in. what would be the ideal approach so that i don't unnecessarily pass around unsought fluff? Thanks in advance.

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  • How to kill process on Remote Desktop Connection?

    - by user118190
    I am working remotely on a Windows Server via Remote Desktop Connection and some process has hung the server. I looked up how to bring up the Task Manager remote (equivalent of locally doing CTRL+ALT+DEL) and I found CTRL+ALT+END and it doesn't seem to work. I tried logging off and logging back on and the system is still up (tried earlier seeing the properties of My Comptuer, FYI). Does anyone know how I can escape this 'hindrance' and star fresh?!?

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  • Merge Mutliple Excel Workbooks

    - by IRHM
    I wonder whether someone may be able to help me please. I'm trying to use the code below to allow the user to select multiple Excel Workbooks, amalgamating the data into one 'Summary' sheet. Sub Merge() Dim DestWB As Workbook, WB As Workbook, WS As Worksheet, SourceSheet As String Set DestWB = ActiveWorkbook SourceSheet = "Input" startrow = 7 FileNames = Application.GetOpenFilename( _ filefilter:="Excel Files (*.xls*),*.xls*", _ Title:="Select the workbooks to merge.", MultiSelect:=True) If IsArray(FileNames) = False Then If FileNames = False Then Exit Sub End If End If For n = LBound(FileNames) To UBound(FileNames) Set WB = Workbooks.Open(Filename:=FileNames(n), ReadOnly:=True) For Each WS In WB.Worksheets If WS.Name = SourceSheet Then With WS If .UsedRange.Cells.Count > 1 Then dr = DestWB.Worksheets("Input").Range("C" & Rows.Count).End(xlUp).Row + 1 lastrow = .Range("C" & Rows.Count).End(xlUp).Row For j = lastrow To startrow Step -1 Select Case .Range("E" & j).Value Case "Manager", "Lead", "Technical", "Analyst" 'do nothing Case Else .Rows(j).EntireRow.Delete End Select Next lastrow = .Range("C" & Rows.Count).End(xlUp).Row If lastrow >= startrow Then .Range("B" & startrow & ":AD" & lastrow).Copy DestWB.Worksheets("Input").Cells(dr, "B").PasteSpecial xlValues .Range("AF" & startrow & ":AQ" & lastrow).Copy DestWB.Worksheets("Input").Cells(dr, "AF").PasteSpecial xlValues .Range("AS" & startrow & ":AS" & lastrow).Copy DestWB.Worksheets("Input").Cells(dr, "AS").PasteSpecial xlValues End If End If End With Exit For End If Next WS WB.Close savechanges:=False Next n End Sub The code works fine except for one issue which I've been trying to solve for the last few weeks. The following line of code looks in column E of the Source file, and if any of the entries match the values shown in the code it copies that row of data to paste into the Destination file. If Range("E" & j) <> "Manager" And Range("E" & j) <> "Lead" And Range("E" & j) <> "Technical" And Range("E" & j) <> "Analyst" Then Rows(j).Delete The problem I have is that if none of these values are found in the Source file, I receive the following error: Run time error '1004': Delete method of range class failed and in Debug mode it highlights this part of the line as the source of the error, but I've no idea why. Rows(j).Delete I just wondered whether someone may be able to look at this please and let me know where I'm going wrong, or perhaps even suggest a more efficient process of allowing the user to merge the workbooks. Many thanks and kind regards

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