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  • MySQLi PHP: Check if SQL INSERT query was fully successful using MySQLi

    - by Jonathan
    Hi, I have this big function that gets a lot of different data and insert it into multiple tables.. Not all the data is always available so not all the SQL INSERT queries are successful. I need to check which SQL INSERT query was fully successful and which wasn't to the do something with this data (like inserting into a log table or similar). Just to give you an example of how I think it can be done: $sql = 'INSERT INTO data_table (ID, column1, column2) VALUES(?, ?, ?)'; if ($stmt->prepare($sql)) { $stmt->bind_param('iss', $varID, $var1, $var2); if ($stmt->execute()) { $success == TRUE; //or something like that } } I'm not completely sure this is the best way and if its always really show if the data was inserted into the table... Any suggestions??

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  • Usng Rails ActiveRecord relationships

    - by Brian Goff
    I'm a newbie programmer, been doing shell scripting for years but have recently taken on OOP programming using Ruby and am creating a Rails application. I'm having a hard time getting my head wrapped around how to use my defined model relationships. I've tried searching Google, but all I can come up with are basically cheat sheets for what has_many, belongs_to, etc all mean. This stuff is easy to define & understand, especially since I've done a lot of work directly with SQL. What I don't understand is how to actually used those defined relationships. In my case I have 3 models: Locations Hosts Services Relationships (not actual code, just for shortening it): Services belongs_to :hosts Hosts has_many :services belongs_to :locations Locations has_many :hosts In this case I want to be able to display a column from Locations while working with Services. In SQL this is a simple join, but I want to do it the Rails/Ruby way, and also not use SQL in my code or redefine my joins.

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  • EntityFramework EntityState and databinding along with INotifyPropertyChanged

    - by OffApps Cory
    Hello, all! I have a WPF view that displays a Shipment entity. I have a textblock that contains an asterisk which will alert a user that the record is changed but unsaved. I originally hoped to bind the visibility of this (with converter) to the Shipment.EntityState property. If value = EntityState.Modified Then Return Visibility.Visible Else Return Visibility.Collapsed End If The property gets updated just fine, but the view is ignorant of the change. What I need to know is, how can I get the UI to receive notification of the property change. If this cannot be done, is there a good way of writing my own IsDirty property that handles editing retractions (i.e. if I change the value of a property, then change it back to it's original it does not get counted as an edit, and state remains Unchanged). Any help, as always, will be greatly appreciated. Cory

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  • Setup GIT Server with Msysgit on Windows

    - by Tom
    Hi Guys, My friends and I are trying to setup GIT for windows using this tutorial but we just keep running into problems. I know many of you guys on this site are GIT gurus - so I was wondering whether anyone would be able to help us (and I am sure 100s of other Windows Devs who want to use GIT) write a "Setup GIT Server" guide for windows using Msysgit ? There is a comment on the guide above suggesting it cant be done with Msysgit because gitosis requires the use of an SSH Server and Bash ? Would really appreciate it if someone could do a step by step guide as there is not one available (we've search for hours)? Install Mysisgit ? Thx

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  • How can I export images from MS SQL Server to a file on disk?

    - by rball
    I have a User table that has all of their avatars saved in an image field. I'd like to just take that out of the database and store it as a regular file on disk. I looked around and saw some code for textcopy, but that doesn't seem to be on my machine for some reason. Here is the code I wrote up anyway. Anyone know a way to get this done? DECLARE @exec_str varchar (255) SELECT @exec_str = 'textcopy /S (local)\SQLEXPRESS' + --' /U ' + @login + --' /P ' + @password + ' /D thedatabase' + ' /T User'+ ' /C AvatarImage' + ' /F "d:\Avatars\' + User.Name + '.jpg"' + ' /O' FROM [User] WHERE UserID = 2 EXEC master..xp_cmdshell @exec_str

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  • Tracking fitness in a genetic algorithm

    - by Chuck Vose
    I'm still hacking on my old ruby for the undead post (I know, I know, stop trying to bring the post back from the dead Chuck). But the code has gotten a little out of hand and now I'm working on a genetic algorithm to create the ultimate battle of living and dead with the fitness being how long the battle lasts. So, I've got the basics of it down; how to adjust attributes of the game and how to acquire the fitness of a solution, what I can't figure out is how to store the fitness so that I know when I've tried a combination before. I've not been able to find much genetic code to look at let alone code that I can read well enough to tell what's going on. Does anyone have an idea how this is normally done or just simply an algorithm that could help point me in the right direction?

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  • Regarding UNIX Shell Script

    - by arav
    When there is no files inside the folder the below script goes inside the for loop. Not sure what i can modify so that it doesn't go inside the for loop. Also when there is no files inside the directory exit status should be success. Wrapper script checks the exit status of the below script FILESRAW ="/exp/test1/folder" . for fspec in "$FILESRAW"/* ; do echo "$fspec" if [[ -f ${fspec} ]] ; then ..... processing logic else ... processing logic fi done

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  • Which license should I use for my open source project

    - by Tyler
    Hey everybody - I have an open source project that I'm working on and I'm trying to figure out what liscense would be the best match. Essentially my project is a framework that developers will use to create projects of their own. The vision I had for the licensing of the project (in plain English): The user must not sell the source code or any derivatives. The user must not sell the framework or any derivatives. The user is allowed to sell a program which uses the framework. Basically, I just don't want anyone to abuse the open source aspect of the project, take what I've done and turn around and sell it. Any suggestions on a good license to use to acheive this? Thanks, Tyler

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  • Facebook Fanpage Wallposting from C# App

    - by brinthhillerup
    Hello Guys I have the following challenge at hand: I have a fanpage for a apartment renting company. They would like to autoupdate their fanpage everytime a new apartment is added to the system. The system is developed in C# ASP.NET 3.5. I have downloaded the Facebook C# API From codeplex. Have anyone done this, or know how to do it? UPDATE: So far I have tried the following: FacebookSession session = new Facebook.Session.ConnectSession(myKey,mySecretKey); Stream stream = new Stream(session); stream.Publish("Testing", null, null, null, 107010519323711); I get a null reference Exception when I call Stream.Publish

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  • How to get target element of keypress in designmode iframe

    - by Tom
    Is it possible to get the target element in a keypress event handler in a design mode iframe ? I know it can be done in the mousedown event handler (by accessing event.target), but in the keypress / keydown handlers event.target is always the iframe element. For example, with the following html, if the user types into the div where it says * key press here *, I would like in the keypress / keydown event handler to be able to determine that the target element is the div with id='b'. Is this possible ? <div id='a'> <div id='b'> *** Key press here *** </div> </div>

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  • Order by null/not null with ICriteria

    - by Kristoffer
    I'd like to sort my result like this: First I want all rows/objects where a column/property is not null, then all where the colmn/property is null. Then I want to sort by another column/property. How can I do this with ICriteria? Do I have to create my own Order class, or can it be done with existing code? ICriteria criteria = Session.CreateCriteria<MyClass>() .AddOrder(Order.Desc("NullableProperty")) // What do I do here? IProjection? Custom Order class? .AddOrder(Order.Asc("OtherProperty"));

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  • Graphical Countdown in Jquery/Javascript/ASP.NET

    - by Eduard Schlechtinger
    Hi designers/developers, I am looking for a way of graphically showing a countdown. I am working for a large Hospital and have written an Ambulance page that shows ambulance arriving in a datagrid with the time of arriving at the hospital in minutes and seconds (plus other info). They have asked me for somehow visually representing the information, so it fits with there other visually appealing Emergency Department web application (e.g. progress bar or something better): 1) Can somebody show me (visually appealing) design examples on how this could be done 2) Are there solutions in .Net (ASP.net or JQuery or Javascript) since this is our preferred technology Thanks so much!

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  • OpenCV 2.0 and Python

    - by Jive Dadson
    I cannot get the example Python programs to run. When executing the Python command "from opencv import cv" I get the message "ImportError: No module named _cv". There is a stale _cv.pyd in the site-packages directory, but no _cv.py anywhere. See step 5 below. MS Windows XP, VC++ 2008, Python 2.6, OpenCV 2.0 Here's what I have done. Downloaded and ran the MS Windows installer for OpenCV2.0. Downloaded and installed CMake Downloaded and installed SWIG Ran CMake. After unchecking "ENABLE_OPENMP" in the CMake GUI, I was able to build OpenCV using INSTALL.vcproj and BUILD_ALL.vcproj. I do not know what the difference is, so I built everything under both of those project files. The C example programs run fine. Copied contents of OpenCV2.0/Python2.6/lib/site-packages to my installed Python2.6/lib/site-packages directory. I notice that it contains an old _cv.pyd and an old libcv.dll.a.

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  • Facebook Connect cross-domain receiver URL (XXXXXXX) must have the application's Connect URL as pref

    - by pallab
    I am trying to create a javascript widget which can be placed on any webpage and uses facebook connect to authenticate the user. What I have done is that,in any html file you put a javascript which has a document.write to show the widget. <script type="text/javascript" src="button.js"></script> On clicking the widget, the facecook login happens if the user is not already logged in to facebook (Single Sign On). There are no problems when I am putting the HTML file and the js file in the same directory as specified in the facebook connect URL. However, when I put the HTML file in some other folder and specify the absolute path to the js folder I get the warning "Facebook Connect cross-domain receiver URL (XXXXXXX) must have the application's Connect URL as prefix" The login however happens? How can this be resolved?

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  • Python: Which encoding is used for processing sys.argv?

    - by EOL
    What encoding are the elements of sys.argv in, in Python? are they encoded with the sys.getdefaultencoding() encoding? sys.getdefaultencoding(): Return the name of the current default string encoding used by the Unicode implementation. PS: As pointed out in some of the answers, sys.stdin.encoding would indeed be a better guess. I would love to see a definitive answer to this question, though, with pointers to solid sources! PPS: As Wim pointed out, Python 3 solves this issue by putting str objects in sys.argv (if I understand correctly). The question remains open for Python 2.x, though. Under Unix, the LC_CTYPE environment variable seems to be the correct thing to check, no? What should be done with Windows (so that sys.argv elements are correctly interpreted whatever the console)?

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  • Are there some general Network programming best practices?

    - by uriDium
    I am implementing some networking stuff in our project. It has been decided that the communication is very important and we want to do it synchronously. So the client sends something the server acknowledges. Are there some general best practices for the interaction between the client and the server. For instance if there isn't an answer from the server should the client automatically retry? Should there be a timeout period before it retries? What happens if the acknowledgement fails? At what point do we break the connection and reconnect? Is there some material? I have done searches but nothing is really coming up. I am looking for best practices in general. I am implementing this in c# (probably with sockets) so if there is anything .Net specific then please let me know too.

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  • MS SQL Bridge Table Constraints

    - by greg
    Greetings - I have a table of Articles and a table of Categories. An Article can be used in many Categories, so I have created a table of ArticleCategories like this: BridgeID int (PK) ArticleID int CategoryID int Now, I want to create constraints/relationships such that the ArticleID-CategoryID combinations are unique AND that the IDs must exist in the respective primary key tables (Articles and Categories). I have tried using both VS2008 Server Explorer and Enterprise Manager (SQL-2005) to create the FK relationships, but the results always prevent Duplicate ArticleIDs in the bridge table, even though the CategoryID is different. I am pretty sure I am doing something obviously wrong, but I appear to have a mental block at this point. Can anyone tell me please how should this be done? Greaty appreciated!

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  • cancel update in datacontext = LInq

    - by Garcia Julien
    Hi, I would like to know if its possible to discard changes of only one record of only one table in datacontext. I use databind to bind my controls on a form. I modify one record at a time. after the modification, the user have to hit save button to validate. But he can hit cancel. I would like that the cancel button discard all the changes that the user has done. Is it possible? Ju

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  • Counting texels using a fragment shader

    - by Brett
    Hi, I have two textures generated using a fragment shader. I want to be able to count the number of texels in each texture that are above some colour intensity. My question is how can this be done? My initial thought is to count these texels using the fragment shader before generating the texture. However, this would require some sort of global counter. I can't use occlusion queries because the textures are created from other textures. I'm using OpenGL 2.1. Any ideas appreciated. Thanks

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  • Why is my toolbar not visible when in landscape mode?

    - by mr-sk
    My aim was to get the application functioning in both landscape and portrait mode, and all I could figure out to do it was this code below. The app was working fine in portrait, but when switched to landscape, the text wouldn't expand (to the right) to fill up the additional space. I made sure my springs/struts where set, and that the parents had "allowResizing" selected in IB. Here's what I've done instead: - (void) willAnimateSecondHalfOfRotationFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation duration: (NSTimeInterval)duration { UIInterfaceOrientation toInterfaceOrientation = self.interfaceOrientation; if (toInterfaceOrientation == UIInterfaceOrientationPortrait) { self.myView.frame = CGRectMake(0.0, 0.0, 320.0, 480.0); } else { self.myView.frame = CGRectMake(0.0, 0.0, 480.0, 256.0); } } Note that it looks just fine in portrait mode (toolbar appears): But the toolbar is gone in landscape mode: Any ideas?

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  • Mapping table and a simple view with Fluent NHibernate

    - by adrin
    I have mapped a simple entity, let's say an invoice using Fluent NHibernate, everything works fine... after a while it turns out that very frequently i need to process 'sent invoices' (by sent invoices we mean all entities that fulfill invoice.sent==true condition)... is there a way to easily abstract 'sent invoices' in terms of my data access layer? I dont like the idea of having aforementioned condition repeated in half of my repository methods. I thought that using a simple filtering view would be optimal, but how could it be done? Maybe I am doing it terribly wrong and someone would help me realize it :)?

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  • Host new WF4 workflows in appfabric

    - by racingcow
    Hello, I am new to using AppFabric to host WF services. I am trying to write a workflow admin application that will allow users to create xaml workflow definitions using the hosted WF4 designer, and then somehow allow those workflow defitions to be automatically deployed and hosted in AppFabric with the click of a button. I have the designer going, and I have read a couple of tutorials on how to host workflow services in AppFabric such as http://msdn.microsoft.com/en-us/library/ee677238.aspx, but my problem is how to deploy and host the workflow services via code. Does anyone know if this sort of "autodeploy/host" thing can be done with AppFabric? If so, could you point me in the right direction on this? -David

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  • Multi-threading mechanisms to run some lengthy operations from winforms code and communication with

    - by tmarouda
    What do I want to achieve: I want to perform some time consuming operations from my MDI winforms application (C# - .NET). An MDI child form may create the thread with the operation, which may take long time (from 0.1 seconds, to even half hour) to complete. In the meantime I want the UI to respond to user actions, including manipulation of data in some other MDI child form. When the operation completes, the thread should notify the MDI child that the calculations are done, so that the MDI child can perform the post-processing. How can I achieve this: Should I use explicit threading (i.e., create explicit threads), thread pools? Or simply just propose your solution. Should I create foreground or background threads? And how does the thread communicates with the GUI, according the solution you propose? If you know of a working example that handles a similar situation, please make a note.

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  • Cassandra/HBase or just MySQL: Potential problems doing the next thing

    - by alexeypro
    Say I have "user". It's the key. And I need to keep "user count". I am planning to have record with key "user" and value "0" to "9999+ ;-)" (as many as I'll have). What problems I will drive in if I use Cassandra, HBase or MySQL for that? Say, I have thousand of new updates to this "user" key, where I need to increment the value. Am I in trouble? Locked for writes? Any other way of doing that? Why this is done -- there will be a lot of "user"-like keys. Different other cases. But the idea is the same. Why keep it this way -- because I'll have more reads, so I can always get "counted value" very fast.

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  • Generic Data Structure Description Language

    - by Jon Purdy
    I am wondering whether there exists any declarative language for arbitrarily describing the format and semantics of a data structure, that can be compiled to a specific implementation of that structure in any of a set of target languages. That is, something like a generic data definition language but geared toward describing arbitrary data structures such as vectors, lists, trees, etc., and the semantics of operations on those structures. I ask because I had an idea for a feasible implementation of this concept, and I'm just wondering whether it's worth it, and, consequently, whether it's been done before. Another, slightly more abstract question: is there any real difference between the normative specification of a data structure (what it does) and its implementation (how it does it)?

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