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  • OperationalError: foreign key mismatch

    - by Niek de Klein
    I have two tables that I'm filling, 'msrun' and 'feature'. 'feature' has a foreign key pointing to the 'msrun_name' column of the 'msrun' table. Inserting in the tables works fine. But when I try to delete from the 'feature' table I get the following error: pysqlite2.dbapi2.OperationalError: foreign key mismatch From the rules of foreign keys in the manual of SQLite: - The parent table does not exist, or - The parent key columns named in the foreign key constraint do not exist, or - The parent key columns named in the foreign key constraint are not the primary key of the parent table and are not subject to a unique constraint using collating sequence specified in the CREATE TABLE, or - The child table references the primary key of the parent without specifying the primary key columns and the number of primary key columns in the parent do not match the number of child key columns. I can see nothing that I'm violating. My create tables look like this: DROP TABLE IF EXISTS `msrun`; -- ----------------------------------------------------- -- Table `msrun` -- ----------------------------------------------------- CREATE TABLE IF NOT EXISTS `msrun` ( `msrun_name` VARCHAR(40) PRIMARY KEY NOT NULL , `description` VARCHAR(500) NOT NULL ); DROP TABLE IF EXISTS `feature`; -- ----------------------------------------------------- -- Table `feature` -- ----------------------------------------------------- CREATE TABLE IF NOT EXISTS `feature` ( `feature_id` VARCHAR(40) PRIMARY KEY NOT NULL , `intensity` DOUBLE NOT NULL , `overallquality` DOUBLE NOT NULL , `charge` INT NOT NULL , `content` VARCHAR(45) NOT NULL , `msrun_msrun_name` VARCHAR(40) NOT NULL , CONSTRAINT `fk_feature_msrun1` FOREIGN KEY (`msrun_msrun_name` ) REFERENCES `msrun` (`msrun_name` ) ON DELETE NO ACTION ON UPDATE NO ACTION); CREATE UNIQUE INDEX `id_UNIQUE` ON `feature` (`feature_id` ASC); CREATE INDEX `fk_feature_msrun1` ON `feature` (`msrun_msrun_name` ASC); As far as I can see the parent table exists, the foreign key is pointing to the right parent key, the parent key is a primary key and the foreign key specifies the primary key column. The script that produces the error: from pysqlite2 import dbapi2 as sqlite import parseFeatureXML connection = sqlite.connect('example.db') cursor = connection.cursor() cursor.execute("PRAGMA foreign_keys=ON") inputValues = ('example', 'description') cursor.execute("INSERT INTO `msrun` VALUES(?, ?)", inputValues) featureXML = parseFeatureXML.Reader('../example_scripts/example_files/input/featureXML_example.featureXML') for feature in featureXML.getSimpleFeatureInfo(): inputValues = (featureXML['id'], featureXML['intensity'], featureXML['overallquality'], featureXML['charge'], featureXML['content'], 'example') # insert the values into msrun using ? for sql injection safety cursor.execute("INSERT INTO `feature` VALUES(?,?,?,?,?,?)", inputValues) connection.commit() for feature in featureXML.getSimpleFeatureInfo(): cursor.execute("DELETE FROM `feature` WHERE feature_id = ?", (str(featureXML['id']),))

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  • Odd ActiveRecord model dynamic initialization bug in production

    - by qfinder
    I've got an ActiveRecord (2.3.5) model that occasionally exhibits incorrect behavior that appears to be related to a problem in its dynamic initialization. Here's the code: class Widget < ActiveRecord::Base extend ActiveSupport::Memoizable serialize :settings VALID_SETTINGS = %w(show_on_sale show_upcoming show_current show_past) VALID_SETTINGS.each do |setting| class_eval %{ def #{setting}=(val); self.settings[:#{setting}] = (val == "1"); end def #{setting}; self.settings[:#{setting}]; end } end def initialize_settings self.settings ||= { :show_on_sale => true, :show_upcoming => true } end after_initialize :initialize_settings # All the other stuff the model does end The idea was to use a single record field (settings) to persist a bunch of configuration data for this object, but allow all the settings to seamlessly work with form helpers and the like. (Why this approach makes sense here is a little out of scope, but let's assume that it does.) Net-net, Widget should end up with instance methods (eg #show_on_sale= #show_on_sale) for all the entires in the VALID_SETTINGS array. Any default values should be specified in initialize_settings. And indeed this works, mostly. In dev and staging, no problems at all. But in production, the app sometimes ends up in a state where a) any writes to the dynamically generated setters fail and b) none of the default values appear to be set - although my leading theory is that the dynamically generated reader methods are just broken. The code, db, and environment is otherwise identical between the three. A typical error message / backtrace on the fail looks like: IndexError: index 141145 out of string (eval):2:in []=' (eval):2:inshow_on_sale=' [GEM_ROOT]/gems/activerecord-2.3.5/lib/active_record/base.rb:2746:in send' [GEM_ROOT]/gems/activerecord-2.3.5/lib/active_record/base.rb:2746:inattributes=' [GEM_ROOT]/gems/activerecord-2.3.5/lib/active_record/base.rb:2742:in each' [GEM_ROOT]/gems/activerecord-2.3.5/lib/active_record/base.rb:2742:inattributes=' [GEM_ROOT]/gems/activerecord-2.3.5/lib/active_record/base.rb:2634:in `update_attributes!' ...(then controller and all the way down) Ideas or theories as to what might be going on? My leading theory is that something is going wrong in instance initialization wherein the class instance variable settings is ending up as a string rather than a hash. This explains both the above setter failure (:show_on_sale is being used to index into the string) and the fact that getters don't work (an out of bounds [] call on a string just returns nil). But then how and why might settings occasionally end up as a string rather than hash?

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  • Integration testing - Hibernate & DbUnit

    - by Marco
    Hi, I'm writing some integrations tests in JUnit. What happens here is that when i run all the tests together in a row (and not separately), the data persisted in the database always changes and the tests find unexpected data (inserted by the previous test) during their execution. I was thinking to use DbUnit, but i wonder if it resets the auto-increment index between each execution or not (because the tests also check the IDs of the persisted entities). Thanks M.

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  • C# Calendar Object on top

    - by contactmatt
    Hi programming some C# in a form with a bunch of group boxes. I have a two Calendar controls that when called upon, are partially invisible due to surrounding group boxes. this.grp_TransactionDetails.Controls.Add(this.cal_Ctrl); this.grp_TransactionDetails.Controls.Add(this.cal_Batch); Any ideas? (I wish there was a z-index property)

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  • Eclipse Juno: Can't find fast view panel

    - by otakun85
    Version: Eclipse 4.2 Codename: Juno I don't see a fast view bar in eclipse 4.2. I can't rightclick on a view and enable fast view. The fast view options under General - Perspectives does nothing. Was the fast view feature removed or am I missing something? I've looked up at http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.user%2Ftasks%2Ftasks-9b.htm , but that didn't helped either.

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  • How can SAP tRFC server tell client through JCo that function has been carried out?

    - by Hendrik Jan van Randen
    SAPs "Transactional RFC Technical Description" document (release 4.0, see http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/ee6bca90-0201-0010-5792-d9693e2eac83?QuickLink=index&overridelayout=true ) says in section Transactional RFC on page 6: "Finally, the server tells the client, that the function has been carried out and the client acknowledges this.". How can the server tell this to the client when the server communicates with the client through JCo (Java Connector)?

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  • how to add styles to actionview helper tags?

    - by ZX12R
    how do i add styles to actionviews helper tags. like the following <%= link_to "Home", :controller=> "home", :action=> "index", :style=>{:position=>"absolute", :top=>"0px"} %> is something like the above achievable. I dont want to add css classes. Thanks.

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  • Why doesn't nHibernate support LIMIT when doing "join fetch"?

    - by HeavyWave
    In nHibernate, if you do an HQL query with "join fetch" to eagerly load a child collection, nHibernate will ignore SetMaxResults and SetFirstResult and try to retrieve every single item from the database. Why? This behavior is specific to HQL, as ICriteria supports eager loading (with an outer join, though) and LIMIT. There are more details here http://www.lesnikowski.com/blog/index.php/nhibernate-ignores-setmaxresults-in-sql/ .

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  • Making a site WITHOUT frames..

    - by user292516
    Hello. I want to make my homepage, without frames, should i just split up my design on index.php so it is header.php/footer.php, and then just include them on every page? But the thing is then, if im going to e.g display a top notification, then when you change "page" its gone..

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  • SQL Server SELECT stored procedure according to combobox.selectedvalue

    - by Jay
    In order to fill a datagridview according to the selectedvalue of a combobox I've tried creating a stored procedure. However, as I'm not 100% sure what I'm doing, depending on the WHERE statement at the end of my stored procedure, it either returns everything within the table or nothing at all. This is what's in my class: Public Function GetAankoopDetails(ByRef DisplayMember As String, ByRef ValueMember As String) As DataTable DisplayMember = "AankoopDetailsID" ValueMember = "AankoopDetailsID" If DS.Tables.Count > 0 Then DS.Tables.Remove(DT) End If DT = DAC.ExecuteDataTable(My.Resources.S_AankoopDetails, _Result, _ DAC.Parameter(Const_AankoopID, AankoopID), _ DAC.Parameter("@ReturnValue", 0)) DS.Tables.Add(DT) Return DT End Function Public Function GetAankoopDetails() As DataTable If DS.Tables.Count > 0 Then DS.Tables.Remove(DT) End If DT = DAC.ExecuteDataTable(My.Resources.S_AankoopDetails, _Result, _ DAC.Parameter(Const_AankoopID, AankoopID), _ DAC.Parameter("@ReturnValue", 0)) DS.Tables.Add(DT) Return DT End Function This is the function in the code behind the form I've written in order to fill the datagridview: Private Sub GridAankoopDetails_Fill() Try Me.Cursor = Cursors.WaitCursor dgvAankoopDetails.DataSource = Nothing _clsAankoopDetails.AankoopDetailsID = cboKeuze.SelectedValue dgvAankoopDetails.DataSource = _clsAankoopDetails.GetAankoopDetails Catch ex As Exception MessageBox.Show("An error occurred while trying to fill the data grid: " & ex.Message, "Oops!", MessageBoxButtons.OK) Finally Me.Cursor = Cursors.Default End Try End Sub And finally, this is my stored procedure: (do note that I'm not sure what I'm doing here) USE [Budget] GO /****** Object: StoredProcedure [dbo].[S_AankoopDetails] Script Date: 04/12/2010 03:10:52 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[S_AankoopDetails] ( @AankoopID int, @ReturnValue int output ) AS declare @Value int set @Value =@@rowcount if @Value = 0 begin SELECT dbo.tblAankoopDetails.AankoopDetailsID, dbo.tblAankoopDetails.AankoopID, dbo.tblAankoopDetails.ArtikelID, dbo.tblAankoopDetails.Aantal, dbo.tblAankoopDetails.Prijs, dbo.tblAankoopDetails.Korting, dbo.tblAankoopDetails.SoortKorting, dbo.tblAankoopDetails.UitgavenDeelGroepID FROM dbo.tblAankoopDetails INNER JOIN dbo.tblAankoop ON dbo.tblAankoopDetails.AankoopID = dbo.tblAankoop.AankoopID INNER JOIN dbo.tblArtikel ON dbo.tblAankoopDetails.ArtikelID = dbo.tblArtikel.ArtikelID INNER JOIN dbo.tblUitgavenDeelGroep ON dbo.tblAankoopDetails.UitgavenDeelGroepID = dbo.tblUitgavenDeelGroep.UitgavenDeelGroepID WHERE dbo.tblAankoopDetails.Deleted = 0 and dbo.tblAankoopDetails.AankoopID = @AankoopID ORDER BY AankoopID if @@rowcount >0 begin set @ReturnValue=999 end else begin set @ReturnValue=997 end end if @Value >0 begin --Dit wil zeggen dat ik een gebruiker wil ingeven die reeds bestaat. (998) set @ReturnValue=998 end Does anyone know what I need to do to resolve this?

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  • jQuery Validate Required Select

    - by Idsa
    I am trying to validate html select element using jQuery Validate plugin. I set "required" rule to true but it always passes validation because zero index is chosed by default. Is there any way to define empty value that is used by required rule?

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  • O(log n) algorithm for computing rank of union of two sorted lists?

    - by Eternal Learner
    Given two sorted lists, each containing n real numbers, is there a O(log?n) time algorithm to compute the element of rank i (where i coresponds to index in increasing order) in the union of the two lists, assuming the elements of the two lists are distinct? I can think of using a Merge procedure to merge the 2 lists and then find the A[i] element in constant time. But the Merge would take O(n) time. How do we solve it in O(log n) time?

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  • Calendar php problem:(

    - by Marin
    Hi everybody! Can you please help me for this problem: It shows me this error in WAMP: Notice: Undefined index: searchstring in C:\wamp\www\Reece Calendar 0.9\includes\search.php on line 180 AND THE LINE IS: <input type=\"text\" name=\"searchstring\" size='70' value='".htmlspecialchars($_POST['searchstring'])."'/> How can I modify it?Please help me!Thnx in advance=)

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  • Reading URL Anchor on IE

    - by tominated
    Hi, I've got a page full of links to another page with anchors on the end (like this: index.html#anchor). On the page they point to, I have a script that is supposed to read where the anchor points to in order to display something. On firefox it works perfectly, But I've noticed that IE seems to remove the #anchor from the end of the url, so the script can't grab the text. Is there a way around this, without any server side code?

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  • change password code error.......

    - by shimaTun
    I've created a code to change a password. Now it seem contain an error. When before I fill in the form to change password.the error is: Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\e-Complaint(FYP)\userChangePass.php:7) in C:\Program Files\xampp\htdocs\e-Complaint(FYP)\userChangePass.php on line 126 the code: <?php # userChangePass.php //this page allows logged in user to change their password. $page_title='Change Your Password'; //if no first_name variable exists, redirect the user if(!isset($_SESSION['userid'])){ header("Location: http://" .$_SERVER['HTTP_HOST']. dirname($_SERVER['PHP_SELF'])."/index.php"); ob_end_clean(); exit(); }else{ if(isset($_POST['submit'])) {//handle form. require_once('connectioncomplaint.php'); //connec to the database //check for a new password and match againts the confirmed password. if(eregi ("^[[:alnum:]]{4,20}$", stripslashes(trim($_POST['password1'])))){ if($_POST['password1'] == $_POST['password2']){ $p =escape_data($_POST['password1']); }else{ $p=FALSE; echo'<p><font color="red" size="+1"> Your password did not match the confirmed password!</font></p>'; } }else{ $p=FALSE; echo'<p><font color="red" size="+1"> Please Enter a valid password!</font></p>'; } if($p){ //if everything OK. //make the query $query="UPDATE access SET password=PASSWORD('$p') WHERE userid={$_SESSION['userid']}"; $result=@mysql_query($query);//run the query. if(mysql_affected_rows() == 1) {//if it run ok. //send an email,if desired. echo '<p><b>your password has been changed.</b></p>'; //include('templates/footer.inc');//include the HTML footer. exit(); }else{//if it did not run ok $message= '<p>Your password could not be change due to a system error.We apolpgize for any inconvenience.</p><p>' .mysql_error() .'</p>'; } mysql_close();//close the database connection. }else{//failed the validation test. echo '<p><font color="red" size="+1"> Please try again.</font></p>'; } }//end of the main Submit conditional. } ?> the error at this line:- header("Location: http://" .$_SERVER['HTTP_HOST']. dirname($_SERVER['PHP_SELF'])."/index.php"); please help me guy...

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  • Is it dangerous to keep an admin page to administer your database?

    - by Scarface
    Hey guys I have an admin page that checks if you are admin before submitting any queries, and contains a header to the index page if you are not admin, but I am worried about protecting the page. I am concerned someone may be able to destroy my database with it. Does anyone have any recommendation into protecting a page like this, if not, should I just manually admin my database through phpmyadmin and delete the page all together?

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  • sorting hashes inside an array on values

    - by srk
    @aoh =( { 3 => 15, 4 => 8, 5 => 9, }, { 3 => 11, 4 => 25, 5 => 6, }, { 3 => 5, 4 => 18, 5 => 5, }, { 0 => 16, 1 => 11, 2 => 7, }, { 0 => 21, 1 => 13, 2 => 31, }, { 0 => 11, 1 => 14, 2 => 31, }, ); I want the hashes in each array index sorted in reverse order based on values.. @sorted = sort { ........... please fill this..........} @aoh; expected output @aoh =( { 4 => 8, 5 => 9, 3 => 15, }, { 5 => 6, 3 => 11, 4 => 25, }, { 5 => 5, 3 => 5, 4 => 18, }, { 2 => 7, 1 => 11, 0 => 16, }, { 1 => 13, 0 => 21, 2 => 31, }, { 0 => 11, 1 => 14, 2 => 31, }, ); Please help.. Thanks in advance.. Stating my request again: I only want the hashes in each array index to be sorted by values.. i dont want the array to be sorted..

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  • Serving static files with Sinatra

    - by TK
    I have one page website only using HTML, CSS and JavaScript. I want to deploy the app to Heroku, but I cannot find a way to do it. I am now trying to make the app working with Sinatra. . |-- application.css |-- application.js |-- index.html |-- jquery.js `-- myapp.rb And the following is the content of myapp.rb. require 'rubygems' require 'sinatra' get "/" do # What should I write here to point to the `index.html` end

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  • How to create imaged scrollbars

    - by Sarfraz
    Hello, How to create imaged scrollbars, for example: http://www.openstudio.fr/jquery/index.htm Basically, I want to create my own image slider with JQuery but I don't want to show default scrollbars. Instead, I would like to have imaged scrollbars.

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  • reading dbase file without standard .dbf extension.

    - by Nathan W
    I am trying to read a file which is just a dbase file but without the standard extension the file is something like: Test.Dat I am using this block of code to try and read the file: string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\Temp;Extended Properties=dBase III"; OleDbConnection dBaseConnection = new OleDbConnection(ConnectionString); dBaseConnection.Open(); OleDbDataAdapter oDataAdapter = new OleDbDataAdapter("SELECT * FROM Test", ConnectionString); DataSet oDataSet = new DataSet(); oDataAdapter.Fill(oDataSet);//I get the error right here... DataTable oDataTable = oDataSet.Tables[0]; foreach (DataRow dr in oDataTable.Rows) { Console.WriteLine(dr["Name"]); } Of course this crashes because it can't find the dbase file called test, but if I rename the file to Test.dbf it works fine. I can't really rename the file all the time because a third party application uses it as its file format. Does anyone know a way to read a dbase file without a standard extension in C#. Thanks.

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  • Using Subversion for Web Experiments while maintaining 'view-ability'

    - by Andrew Bolster
    I'm experimenting with different workflows and backup schemes, and one thing I'm trying is using subversion for my web experiments. I have an off-site subversion server, and assuming the project is 'public_html' (which in this case it is), I want to be able to go to the index.html page and for it to be rendered instead of just pumped out as a text file. I'm sure I'm missing something obvious; I am not a web developer

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  • HAML on Rails 3 doesn`t work

    - by Peter
    Hey there, i have tried to render some files with HAML in Rails 3. But HAMl doesn`t work. My testfiles have the extension .html.haml. In the GEMFile i have written gem 'haml' and executed the bundle install When i call my testapp i become an error like this: Template is missing Missing template posts/index with {:locale=>[:en, :en], :formats=>[:html], :handlers=>[:rjs, :rhtml, :rxml, :builder, :erb]} in view paths "/Users/piet/Sites/blog/app/views" Hope, i become some help here. Peter

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  • ErrorException [ Fatal Error ]: Class 'Controller' not found - Kohana 3.0.3 Error

    - by Asif
    Hi, I am (newbie) using Kohana V 3.0.3 and my directory structure is: pojectsys (kohana's system directory) parallel to htdocs directory C:\xampp\pojectsys and my application directory is in htdocs C:\xampp\htdocs\examples Inside C:\xampp\htdocs\examples\index.php, following variables have been set: $application = 'C:\xampp\htdocs\examples\application'; $system = 'C:\xampp\pojectsys'; Now when I am trying to execute http://lc.examples.com/ then Kohana returns error: ErrorException [ Fatal Error ]: Class 'Controller' not found for line 3 class Controller_Welcome extends Controller { Please help me to resolve this issue.

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