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  • SQL-wrappers (activerecord) to recommened for python?

    - by Horace Ho
    is there an activerecord (any similar SQL-wrapper) for python? which is good for: used in a server-side python script light-weight supports MySQL what I need to do: insert (filename, file size, file md5, the file itself) into (string, int, string, BLOB) columns if the same file (checksum + filename) does not exist in db thx

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  • Grails: How can I search through children in a hasMany relationship?

    - by intargc
    If I have a Client domain class, and that Client hasMany Courses. How do I find the course I'm looking for? For instance: class Client { String name static hasMany = [courses:Course] } class Course { String name static belongsTo = [client:Client] } def client = Client.get(1) I want to "find" or "search" within that courses relationship. Maybe something like: client.courses.find(name:'Whatever') Is there any way to do this with Grails?

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  • c#: can you use a boolean predicate as the parameter to an if statement?

    - by Craig Johnston
    In C#, can you use a boolean predicate on its own as the parameter for an if statement? eg: string str = "HELLO"; if (str.Equals("HELLO")) { Console.WriteLine("HELLO"); } Will this code output "HELLO", or does it need to be: string str = "HELLO"; if (str.Equals("HELLO") == true) { Console.WriteLine("HELLO"); } If there is anything else wrong with the above code segments, please point it out.

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  • Getting this error while reading excel

    - by Lalit
    I have code string conn = @"Provider=Microsoft.ACE.OLEDB.12.0;DSN=Excel Files;DBQ=" + strSheetPath + @";DriverId=1046;FIL=excel 12.0;MaxBufferSize=2048;PageTimeout=5;"; //string conn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + strSheetPath +";Extended Properties=Excel 12.0 Xml;HDR=YES;IMEX=1"; string destinationConnectionString = ConfigurationManager.ConnectionStrings["KGD6DBConnectionString"].ConnectionString; string query = "Select * From [Sheet1$]"; using (var myConnection = new OleDbConnection(conn)) using (var destinationConnection = new SqlConnection(destinationConnectionString)) using (var bulkCopy = new SqlBulkCopy(destinationConnection)) { //Map first column in source to second column in sql table (skipping the ID column). //Excel schema[CompanyName,Phone] Table schema[ShipperID, CompanyName, Phone] bulkCopy.ColumnMappings.Add(0, 1); bulkCopy.ColumnMappings.Add(1, 2); bulkCopy.ColumnMappings.Add(2, 3); bulkCopy.ColumnMappings.Add(3, 4); bulkCopy.ColumnMappings.Add(4, 5); bulkCopy.ColumnMappings.Add(5, 6); bulkCopy.ColumnMappings.Add(6, 7); bulkCopy.ColumnMappings.Add(7, 8); bulkCopy.ColumnMappings.Add(8, 9); bulkCopy.ColumnMappings.Add(9, 10); bulkCopy.ColumnMappings.Add(10, 11); bulkCopy.ColumnMappings.Add(11, 12); bulkCopy.ColumnMappings.Add(12, 13); bulkCopy.ColumnMappings.Add(13, 14); bulkCopy.ColumnMappings.Add(14, 15); bulkCopy.ColumnMappings.Add(15, 16); bulkCopy.ColumnMappings.Add(16, 17); bulkCopy.ColumnMappings.Add(17, 18); bulkCopy.ColumnMappings.Add(18, 19); bulkCopy.ColumnMappings.Add(19, 20); bulkCopy.ColumnMappings.Add(20, 21); bulkCopy.ColumnMappings.Add(21, 22); bulkCopy.ColumnMappings.Add(22, 23); bulkCopy.ColumnMappings.Add(23, 24); bulkCopy.DestinationTableName = "dbo.sampleInventory"; using (var myCommand = new OleDbCommand(query, myConnection)) { myConnection.Open(); destinationConnection.Open(); var myReader = myCommand.ExecuteReader(); while (myReader.Read()) { bulkCopy.WriteToServer(myReader); } } } return (new DataTable()); getting error on connection opening line. Error: Could not find installable ISAM.

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  • instantiate object with reflection using constructor arguments

    - by justin
    I'm trying to figure out how to instantiate a case class object with reflection. Is there any support for this? The closest I've come is looking at scala.reflect.Invocation, but this seems more for executing methods that are a part of an object. case class MyClass(id:Long, name:String) def instantiate[T](className:String)(args:Any*) : T = { //your code here } Is close to the API I'm looking for. Any help would be appreciated.

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  • compiling java program

    - by Hulk
    If the java program is compiled as javac t1.java a //error contents redirecedt to a,file a.But a doesnt have the error contents The contents of t1.java is as: class t1{ public static void main(String[] args) { System.out.printn("Hello World!"); // Display the string. } } So now there is a error i.e, println is written as print n ,how to capture this error in file a The command is executed from linux command prompt Thanks....

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  • Fastest way to get array of NSRange objects for all uppercase letters in an NSString?

    - by Bama91
    I need NSRange objects for the position of each uppercase letter in a given NSString for input into a method for a custom attributed string class.  There are of course quite a few ways to accomplish this such as rangeOfString:options: with NSRegularExpressionSearch or using RegexKitLite to get each match separately while walking the string.  What would be the fastest performing approach to accomplish this task?

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  • What is Best way to obtain filename for HTML FILE Uploading on forms?

    - by CitadelCSAlum
    I need to obtain the String for the file that is being uploaded from forms to store in the database. I am using the usual form input file element input type="file" name="some_name" I found a couple JS scripts that allow me to do useless things like display the string in a dialog box, etc. I need this as an element on the request object or as a hidden field on my page when the form is posted.

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  • c# list comparer use two compare elements

    - by senzacionale
    private class CompAdvertisements : IComparer<Advertisements> { private string OrderBy { get; set; } public CompAdvertisements(string orderBy) { OrderBy = orderBy; } #region IComparer<Advertisements> Members public int Compare(Advertisements x, Advertisements y) { return x.Country.Name.CompareTo(y.Country.Name); Can i also user x.Name.CompareTo(y.Name); in comparer that i will compare with two elements lik order by something and order by something2

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  • HTML tags in ojective c programming

    - by user1661826
    Is there any function in Objective-C to print a list of elements as unordered HTML elements. For ex - [@"a--b-c---d" htmlList: @"--"] returns @ "ab-c-d" the "--" is the delimiter to seperate the string of elements. I have used NSSArray to store the input string and function componentsSeperatedByString:@"--" to get the elements. How do I go ahead in adding the HTML tags li and /li between elements and ul and /ul at the end of the entire list? Please help, Im a beginner in objective -C

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  • ApplicationContext ctx = new FileSystemXmlApplicationContext error

    - by GigaPr
    Hi I am completely new to Java, so sorry if my question may sound a bit stupid. I am following a tutorial on hibernate and i am trying to get the context definition files from the file system. ApplicationContext ctx = new FileSystemXmlApplicationContext( new String[] { "conf/rssWebApplication-services.xml", "conf/rssWebApplication-data-hibernate.xml" }); But i get the following error: found : org.springframework.context.support.FileSystemXmlApplicationContext required: org.jboss.weld.context.ApplicationContext ApplicationContext ctx = new FileSystemXmlApplicationContext( new String[] { "conf/rssWebApplication-services.xml", Any idea what is the problem? Thanks

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  • getting node value exception

    - by Aswan
    Hi Folks <amount currency="USD">1000500</amount> while parsing above string i am getting only attribute value .when i try to get node value null pointer exception for getting node value using NodeList amountList= estimateElement.getElementsByTagName("amount"); Element amtElement= (Element)amountList.item(0); String amount=amtElement.getFirstChild().getnodevalue() Thanks in advance Aswan

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  • Authlogic: passwords saved in the DB are not working as expected.

    - by user570459
    Hello everyone, Im having trouble with authlogic on my production server. Im able to update passwords in the database but when i try to validate a user using the new password, the validation fails. Please check the below console output. Notice how the salt and crypted_password fields get update before and after the new password is saved. The issue is only on my production server (running passenger). Everything works fine on my development machine. => #<User id: 3, login: "saravk", email: "[email protected]", crypted_password: "9bc86247105e940bb748ab680c0e77d9c44a82ea", salt: "WdVpQIdwl68k8lJWOU"> irb(main):003:0> u.password = "kettik123" => "kettik123" irb(main):004:0> u.password_confirmation = "kettik123" => "kettik123" irb(main):005:0> u.save! => true irb(main):006:0> u.valid_password?("kettik123") => true irb(main):007:0> u.reload => #<User id: 3, login: "saravk", email: "[email protected]", crypted_password: "f059007c56f498a12c63209c849c1e65bb151174", salt: "lVmmczhyGE0gxsbV421A"> irb(main):008:0> u.valid_password?("kettik123") => false The authlogic configuration in my User model.. class User < ActiveRecord::Base acts_as_authentic do |c| c.login_field :email c.validate_login_field false c.validate_email_field false c.perishable_token_valid_for = 1.day c.disable_perishable_token_maintenance = true end I use the email field as the main key for the user. Also the email field is allowed to be blank in some cases (eg a facebook user) Also i belive that my schema is proper (in terms of the length of the salt & crypted password fields) create_table "users", :force => true do |t| t.string "login" t.string "email" t.string "crypted_password", :limit => 128, :default => "" t.string "salt", Any help on this would be highly appreciated. Thanks.

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  • callback function for php preg_replace_callback not getting called on linux CentOS 5.4

    - by user105165
    I have used the preg_replace_callback as $string = preg_replace_callback($pattern,'CreateTemplatesController::callbackhandler',$string ); I have called the callbackhandler function with the class name as this function is a private static function. Problem is "callbackhandler" function is not getting called. Please post if any one know the reason for the same. Thanks in Advance

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  • Java > SimpleDateFormat > Month + 1 Why ?

    - by Natim
    Hello, I am using SimpleDateFormat to display a Calendar like this : public String getDate() { String DATE_FORMAT = "EEEE, dd/MM/yyyy HH:mm:ss"; SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT); System.err.println(date.getTime().getMonth()); return sdf.format(date.getTime()); } The shell returns 6 and the display : mardi, 06/07/2010 12:44:52 It can't be possible ? Why ? Thanks

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  • Given a pickle dump in python how to I determine the used protocol?

    - by SmCaterpillar
    Assume that I have a pickle dump - either as a file or just as a string - how can I determine the protocol that was used to create the pickle dump automatically? And if so, do I need to read the entire dump to figure out the protocol or can this be achieved in O(1)? By O(1) I think about some header information at the beginning of the pickle string or file whose read out does not require processing the whole dump. Thanks a lot!

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  • Criticise/Recommendations for my code

    - by aLk
    Before i go any further it would be nice to know if there is any major design flaws in my program so far. Is there anything worth changing before i continue? Model package model; import java.sql.*; import java.util.*; public class MovieDatabase { @SuppressWarnings({ "rawtypes", "unchecked" }) public List queryMovies() throws SQLException { Connection connection = null; java.sql.Statement statement = null; ResultSet rs = null; List results = new ArrayList(); try { DriverManager.registerDriver(new com.mysql.jdbc.Driver()); connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "password"); statement = connection.createStatement(); String query = "SELECT * FROM movie"; rs = statement.executeQuery(query); while(rs.next()) { MovieBean bean = new MovieBean(); bean.setMovieId(rs.getInt(1)); bean.setTitle(rs.getString(2)); bean.setYear(rs.getInt(3)); bean.setRating(rs.getInt(4)); results.add(bean); } } catch(SQLException e) { } return results; } } Servlet public class Service extends HttpServlet { @SuppressWarnings("rawtypes") protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("Movies!"); MovieDatabase movies = new MovieDatabase(); try { List results = movies.queryMovies(); Iterator it = results.iterator(); while(it.hasNext()) { MovieBean movie = new MovieBean(); movie = (MovieBean)it.next(); out.println(movie.getYear()); } } catch(SQLException e) { } } } Bean package model; @SuppressWarnings("serial") public class MovieBean implements java.io.Serializable { protected int movieid; protected int rating; protected int year; protected String title; public MovieBean() { } public void setMovieId(int movieidVal) { movieid = movieidVal; } public void setRating(int ratingVal) { rating = ratingVal; } public void setYear(int yearVal) { year = yearVal; } public void setTitle(String titleVal) { title = titleVal; } public int getMovieId() { return movieid; } public int getRating() { return rating; } public int getYear() { return year; } public String getTitle() { return title; } }

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  • Retrieving substring of a bound value

    - by shivesh
    I am binding some data to control, but want to limit the number of character of a specific field to a 30 first characters. I want to do it, if it's possible, on aspx page. I tried this: Text='<%# String.Format("{0}", Eval("Title")).Substring(0,30) %> ' But got this error: Index and length must refer to a location within the string. Parameter name: length

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  • PHP strpos preg_match

    - by usurper
    Hi, I want to copy a substring of a string using PHP. The regex for the first pattern is /\d\|\d\w0:/ The regex for the second pattern is: /\d\w\w\d+:\s-\s:/ Is it possible combining preg_match with strpos to get the exact positions from start to end and then copy it with substr( $string, $firstPos,$secPos ) ?

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  • [VB.Net] Typecasting generic parameters.

    - by CFP
    Hello world! Using the following code: Function GetSetting(Of T)(ByVal SettingName As String, ByRef DefaultVal As T) As T Return If(Configuration.ContainsKey(SettingName), CType(Configuration(SettingName), T), DefaultVal) End Function Yields the following error: Value of type 'String' cannot be converted to 'T'. Any way I could specify that in all cases, the conversion will indeed be possible (I'm basically getting integers, booleans, doubles and strings). Thanks!

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