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  • Why does Mercurial only have one level of rollback?

    - by Nick Pierpoint
    I understand the restrictions of rollback and the care required in its use (for example, http://www.selenic.com/mercurial/hg.1.html#rollback), but I just wondered why there is only 1 level of rollback. My guess it's a design decision and that the hassle of storing multiple previous transactional states to handle multiple levels of rollback is more trouble than its worth.

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  • Storing data locally and synchronizing it with data base on linux server

    - by Miraaj
    Hi all, I have developed a mac application, which is continuously interacting with database on linux server. As data is increasing it has become costlier affair in terms of time to fetch data from server. So I am planning to store required data locally, say on mysqlite and find some mechanism through which I can synchronize it with database on linux server. Can anyone suggest me some way to accomplish it? Thanks, Miraaj

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  • Remove specific definitions from a variable in PHP

    - by Amit
    Hi everyone, I have a PHP mail script that validates name, email address, and phone number before sending the mail. This then means that the Name, Email address, and Phone fields are Required Fields. I want to have it so that the Name and EITHER Email or Phone are required. Such that if a name and phone are inputted, it sends the mail, or if a name and an email are inputted, it also sends the email. The way the script works right now is it has several IF statements that check for (1) name, (2) email and (3) phone. Here's an example of an if statement of the code: if ( ($email == "") ) { $errors .= $emailError; // no email address entered $email_error = true; } if ( !(preg_match($match,$email)) ) { $errors .= $invalidEmailError; // checks validity of email $email_error = true; } And here's how it sends the mail: if ( !($errors) ) { mail ($to, $subject, $message, $headers); echo "<p id='correct'>"; echo "?????? ????? ??????!"; echo "</p>"; } else { if (($email_error == true)) { $errors != $phoneError; /*echo "<p id='errors'>"; echo $errors; echo "</p>";*/ } if (($phone_error == true)) { $errors != $emailError; $errors != $invalidEmailError; /*echo "<p id='errors'>"; echo $errors; echo "</p>";*/ } echo "<p id='errors'>"; echo $errors; echo "</p>"; } This doesn't work though. Basically this is what I want to do: If no email address was entered or if it was entered incorrectly, set a variable called $email_error to be true. Then check for that variable, and if it's true, then remove the $phoneError part of the $errors variable. Man I hope I'm making some sense here. Does anyone know why this doesn't work? It reports all errors if all fields are left empty :( Thanks! Amit

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  • Validating using stripes causes bound values to delete

    - by Davoink
    I'm using Stripes and I am validating the values of a drop down box to ensure the user selects an option. On initial load all data is present, but once the validation kicks in the form loses the data that was set up in the action bean on load. This includes the original list I am validating against. I'm simply using in the jsp, and annotating the field in the action bean as @Validate(required=true). Am I missing something simple? Cheers

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  • Oracle multiset, collection and records

    - by Atul
    Can anybody Explain me why records are required. Can't we perform the same operation in pl/sql using loop and all. Also when multiset, records query can be used i.e. in which type of situation and which one will be the preference.

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  • Best ASP.Net Host for Developers [closed]

    - by Tyler
    I would need it to allow me to host subdomains and multiple domains is a huge plus. Required: ASP.NET 2.0, 3.0, 3.5 Subdomain Hosting MS-SQL & MySQL Databases Want Multiple Domain Hosting ASP.NET 4.0 Ability to directly connect to MS SQL using SQL SMS

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  • yes another question about Interfaces?

    - by sam
    Hi Guys, I started commercial programming lately, I am used to functions, then now I always questions about interfaces.. Do you provide me with some links and book names, that can explain deeply why using interfaces? is interfaces required for small projects?? I am using C#. thanks

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  • Best practices for an internal webservice

    - by sankara
    Experience says that using WSDL-SOAP based webservice for internal consumption is an overkill. There are too many service-based POJO classes that when let into the system complicates it way too much. One option would be use adapter pattern, map the request/response objects to internal domain classes and . But is it even required? Is there a better approach? What are your suggestions?

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  • Which version of .NET 4.0 is needed for web site hosting? Client or Full?

    - by Pure.Krome
    Hi folks, Simple question - for dedicated website hosting, do i need to download and install the full ASP.NET 4.0 package, or just the client. I understand the client is required for end users who need the .NET framework for their windows form applications. But i'm not sure for a web hosting sceanrio. Also, don't worry about talking about x86 or x64 - i understand the differences with the packages, etc.

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  • htaccess in php

    - by Badshah
    I am using htaccess in my projec.there is login section i want to show the my account page as http:///www/domain.com/username . But there is a problem because i have also made a cms which is open as http:///www/domain.com/cms . Although i have validate the user name But there is same page open when i open the cms or user profile page. I have pass the regular expression in htaccess but stil not required result is come

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  • Cross platform millisecond timer lasting more than 49 days?

    - by Cetra
    Hey guys, I'm going to be developing a small dedicated server in C/C++ that will require uptime of forever. I've been looking into some time functions as millisecond timing is required for calculations. I have 2 problems that I'm facing: Using a 32bit integer to store the number of milliseconds since the operation began will wrap around at about the 49 days mark resetting to zero. There doesn't seem to be any standard system calls for getting elapsed milliseconds that are platform independant What should I do to resolve both these issues?

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  • compiling maya (3d application ) with qt

    - by knishua
    including the maya ( 3d application ) classes in qt program gives lot of errors..... i have added all required include paths and libs...the same problem persists .... this is pro file for my qt project TARGET = FileCon TEMPLATE = app SOURCES += main.cpp \ dialog.cpp HEADERS += dialog.h \ ConvertFunction.h FORMS += dialog.ui LIBS += "C:/Program Files/Autodesk/Maya2008/lib" \ -lOpenMaya.lib \ -lFoundation.lib \ -lOpenMayalib INCLUDEPATH += "C:/Program Files/Autodesk/Maya2008/include" DEFINES = _BOOL \ WIN32 \ REQUIRE_IOSTREAM /////////////////////////////////////////// How is it possible to use maya classes with qt.

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  • Prevent UIWebView sliding off the screen (iPhone)

    - by DisposableHeart
    I have a full screen UIWebView component on the screen with fixed size content, so no scrolling required. When I nudge the screen the content in moving up or down. The same effect can one experience all over the iPhone when there is a scroll-enabled component. I would like to prevent this happening in my application. Please shed some light...

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  • Good Software development courses?

    - by user296970
    I'm a software developer with a BS in Computer Science. I've been working in the field for 5 years, and I'm looking to develop my project leadership skills (I'm currently not a lead). Does anyone have any suggestions as to which schools / programs I can do? A masters is probably out of the question, due to the time required (and my not so good verbal score on my GRE). A shorter course would be preferable.

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  • Boost Test dynamically or statically linked?

    - by Halt
    We use Boost statically linked with our app but now I wan't to use Boost Test with an external test runner and that requires the tests themselves to link dynamically with Boost.Test through the use of the required BOOST_TEST_DYN_LINK define. Is this going to be a problem or is the way Boost Test links completely unrelated to the way the other Boost libraries are linked? Thx.

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  • java mapping for oracle number type

    - by aauser
    I have database with oracle number type. Could there any possible issues with using java Double when updating table with numeric column. Should i switch BigDecimal or Double is approriate type. As I fas as I know, BigDecimal is used when arbitrary precision required, when deal with prices for example. Consider simple API updatePrice(Double d) Should i persist double as is or BigDecimal.valueOf(d) is preferable ?

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  • SQL, Auxiliary table of numbers

    - by vzczc
    For certain types of sql queries, an auxiliary table of numbers can be very useful. It may be created as a table with as many rows as you need for a particular task or as a user defined function that returns the number of rows required in each query. What is the optimal way to create such a function?

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  • How can I write a "Hello World" app in assembly language?

    - by SLC
    I've often heard of applications written using the language of the gods, assembly language. I've never tried though, and I don't even have a clue how to do it. If I wanted to dabble, how would I go about doing it? I know absolutely nothing about what is required, although presumably some kind of compiler and Notepad. Just purely out of curiousity, what would I need to write a "Hello World!" application?

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  • CodeIgniter Form Validation

    - by mmcglynn
    I am trying to set up validation on a simple contact form that is created using the form helper. No validation at all occurs. What is wrong? In the code below, the “good” keyword always shows, regardless of what is entered into the form, and the saved values set via set_value are never shown. Controller // Contact function contact() { $data['pageTitle'] = "Contact"; $data['bodyId'] = "contact"; $this->load->library('form_validation'); $config_rules = array ('email' => 'required','message' => 'required'); $this->form_validation->set_rules($config_rules); if ($this->form_validation->run() == FALSE) { echo "bad"; $data['include'] = "v_contact"; $this->load->view('v_template',$data); } else { echo "good"; $data['include'] = "v_contact"; $this->load->view('v_template',$data); } } View echo validation_errors(); echo form_open('events/contact'); // name echo form_label('Name', 'name'); $data = array ( 'name' => 'name', 'id' => 'name', 'maxlength' => '64', 'size' => '40', 'value' => set_value('name') ); echo form_input($data) . "\n<br />"; // email address echo form_label('Email Address', 'email'); $data = array ( 'name' => 'email', 'id' => 'email', 'maxlength' => '64', 'size' => '40', 'value' => set_value('email') ); echo form_input($data) . "\n<br />"; // message echo form_label('Message', 'message'); $data = array ( 'name' => 'message', 'id' => 'message', 'rows' => '8', 'cols' => '35', 'value' => set_value('message') ); echo form_textarea($data) . "\n<br />"; echo form_submit('mysubmit', 'Send Message'); echo form_close();

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