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• Batch select with SQLAlchemy

  - by muckabout

  I have a large set of values V, some of which are likely to exist in a table T. I would like to insert into the table those which are not yet inserted. So far I have the code: for value in values: s = self.conn.execute(mytable.__table__.select(mytable.value == value)).first() if not s: to_insert.append(value) I feel like this is running slower than it should. I have a few related questions: Is there a way to construct a select statement such that you provide a list (in this case, 'values') to which sqlalchemy responds with records which match that list? Is this code overly expensive in constructing select objects? Is there a way to construct a single select statement, then parameterize at execution time?

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• How does one check if a table exists in an Android SQLite database?

  - by camperdave

  I have an android app that needs to check if there's already a record in the database, and if not, process some things and eventually insert it, and simply read the data from the database if the data does exist. I'm using a subclass of SQLiteOpenHelper to create and get a rewritable instance of SQLiteDatabase, which I thought automatically took care of creating the table if it didn't already exist (since the code to do that is in the onCreate(...) method). However, when the table does NOT yet exist, and the first method ran upon the SQLiteDatabase object I have is a call to query(...), my logcat shows an error of "I/Database(26434): sqlite returned: error code = 1, msg = no such table: appdata", and sure enough, the appdata table isn't being created. Any ideas on why? I'm looking for either a method to test if the table exists (because if it doesn't, the data's certainly not in it, and I don't need to read it until I write to it, which seems to create the table properly), or a way to make sure that it gets created, and is just empty, in time for that first call to query(...)

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• Convert XAML to FlowDocument to display in RichTextBox in WPF

  - by Erika

  I have some HTML, which i am converting to XAML using the library provided by Microsoft string t = HtmlToXamlConverter.ConvertHtmlToXaml(mail.HtmlDataString,true); now, from http://stackoverflow.com/questions/1449121/how-to-insert-xaml-into-richtextbox i am using the following: private static FlowDocument SetRTF(string xamlString) { StringReader stringReader = new StringReader(xamlString); System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(stringReader); Section sec = XamlReader.Load(xmlReader) as Section; FlowDocument doc = new FlowDocument(); while (sec.Blocks.Count > 0) doc.Blocks.Add(sec.Blocks.FirstBlock); return doc; } This however keeps crashing unfortunately =/ Does anyone have any clue on how to display XAML text in a RichTextBox please?

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• Multiple skins in ASP.NET MVC using StringTemplate

  - by Jamie

  I am considering the StringTemplate view engine for my ASP.NET MVC application. This application will be built with one skin, but I then expect many more, often very similar skins to be developed for it. This is primiarly the reason for my choice of StringTemplate as the view engine, as there will be zero logic in the views. In my head, I envisaged having each skin in a directory under the 'Views' directory in the folder structure, then maintaining a data structure which maps hostnames to skin directories. An obvious disadvantage of this approach is that I will have to explicitly specify my view files - an alternative might be to hack the implementation of the View() method to change the /views/controller/action standard path and insert an extra layer. Is anyone aware of any examples of implementations along these lines using ASP.NET MVC and StringTemplate at present? Can anyone forsee any potential problems with my approach? Thanks in advance.

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• Multi-statement Table Valued Function vs Inline Table Valued Function

  - by AndyC

  ie: CREATE FUNCTION MyNS.GetUnshippedOrders() RETURNS TABLE AS RETURN SELECT a.SaleId, a.CustomerID, b.Qty FROM Sales.Sales a INNER JOIN Sales.SaleDetail b ON a.SaleId = b.SaleId INNER JOIN Production.Product c ON b.ProductID = c.ProductID WHERE a.ShipDate IS NULL GO versus: CREATE FUNCTION MyNS.GetLastShipped(@CustomerID INT) RETURNS @CustomerOrder TABLE (SaleOrderID INT NOT NULL, CustomerID INT NOT NULL, OrderDate DATETIME NOT NULL, OrderQty INT NOT NULL) AS BEGIN DECLARE @MaxDate DATETIME SELECT @MaxDate = MAX(OrderDate) FROM Sales.SalesOrderHeader WHERE CustomerID = @CustomerID INSERT @CustomerOrder SELECT a.SalesOrderID, a.CustomerID, a.OrderDate, b.OrderQty FROM Sales.SalesOrderHeader a INNER JOIN Sales.SalesOrderHeader b ON a.SalesOrderID = b.SalesOrderID INNER JOIN Production.Product c ON b.ProductID = c.ProductID WHERE a.OrderDate = @MaxDate AND a.CustomerID = @CustomerID RETURN END GO Is there an advantage to using one over the other? Is there certain scenarios when one is better than the other or are the differences purely syntactical? I realise the 2 example queries are doing different things but is there a reason I would write them in that way? Reading about them and the advantages/differences haven't really been explained. Thanks

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• Using truncate table alongside Hibernate?

  - by Marcus

  Is it OK to truncate tables while at the same time using Hibernate to insert data? We parse a big XML file with many relationships into Hibernate POJO's and persist to the DB. We are now planning on purging existing data at certain points in time by truncating the tables. Is this OK? It seems to work fine. We don't use Hibernate's second level cache. One thing I did notice, which is fine, is that when inserting we generate primary keys using Hibernate's @GeneratedValue where Hibernate just uses a key value one greater than the highest value in the table - and even though we are truncating the tables, Hibernate remembers the prior value and uses prior value + 1 as opposed to starting over at 1. This is fine, just unexpected. Note that the reason we do truncate as opposed to calling delete() on the Hibernate POJO's is for speed. We have gazillions of rows of data, and truncate is just so much faster.

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• UITableView insertRowsAtIndexPaths out of order

  - by bschlenk

  I currently have a UISegmentedControl set to add/remove table view cells when its value changes. Removing cells works perfectly, however when I insert cells they're in reverse order every other time. NSArray *addindexes = [NSArray arrayWithObjects:[NSIndexPath indexPathForRow:2 inSection:0], [NSIndexPath indexPathForRow:3 inSection:0], [NSIndexPath indexPathForRow:4 inSection:0], nil]; NSArray *removeindexes = [NSArray arrayWithObjects:[NSIndexPath indexPathForRow:2 inSection:0], [NSIndexPath indexPathForRow:3 inSection:0], [NSIndexPath indexPathForRow:4 inSection:0], nil]; [self.tableView beginUpdates]; switch (switchType.selectedSegmentIndex) { case 0: [self.tableView insertRowsAtIndexPaths:addindexes withRowAnimation:UITableViewRowAnimationTop]; break; case 1: [self.tableView deleteRowsAtIndexPaths:removeindexes withRowAnimation:UITableViewRowAnimationTop]; break; default: break; } [self.tableView endUpdates];} For example, every other time I add/remove cells they're in reverse order. (4, 3, 2 instead of 2, 3, 4) 1) Remove cells- add cells- correct order 2) Remove cells- add cells- incorrect order 3) Remove cells- add cells- correct order

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• Passing parameter to SOAP Web Service Requests Using Visual Studio Team System 2008

  - by Nicholas

  How can I pass in the current datetime parameter to a SOAP request? I know you can pass in parameters by adding a datasource to the web test project and reference it like this {{DataSource.TableName.FieldName}}. But I want to pass in current datetime parameter as a dynamic value (something like DateTime.Now). How do I go about doing this? Below is sample SOAP request that I put into String Body: <soap:body> <MyQuery xmlns="http://something.com"> <req> <QueryType>{{DataSource.Table.QueryType}}</QueryType> <Name>{{DataSource.Table.Name}}</Name> <RequestDateTime>{{insert DateTime.Now here}}</RequestDatetime> </req> </MyQuery> </soap:body> P.S. Running web test by adding Web Service Request in Visual Studio Team System 2008

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• jQuery, insertBefore, validation, Placement of error message

  - by Steve

  I am using insertBefore under errorplacement to add validation messages, each one below each other as I want the order of the messages to go from top to bottom. I am using a hidden input at the very bottom of a parent element in order to supply an element for the insertBefore argument. Is there a way to insert from the bottom without using the dummy hidden element? If I use absolute positioning, there is a possibility for white space, for example 3 stacked messages, the middle one missing since there is no collapsing with absolute positioning.

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• wpf binding by selected value - swap out bound object without disturbing binding

  - by Andy Clarke

  Hi, I've got combo box bound to a custom collection type - its basically an overridden ObservableCollection which I've added a facility to update the underlying collection (via Unity). I don't want to confuse the issue too much, but thats the background. My xaml looks like this <ComboBox ItemsSource="{Binding Manufacturers}" DisplayMemberPath="Name" SelectedValuePath="ID" SelectedValue="{Binding Vehicle.ManufacturerID}" /> And in my overridden collection i was doing this. index = IndexOf(oldItem); Insert(index, (T)newItem); RemoveAt(index + 1); I had hoped because it was bound by value, that inserting the new object(which had the same id) and then removing the old one would work. But it seems that although its bound by SelectedValue it still knows that its being swapped for a different one. The combo just looses its selection. Can anyone help please?

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• How to add a Fragment inside a ViewPager using Nested Fragment (Android 4.2)

  - by sabadow

  I have a ViewPager with three Fragments, each one shows a List (or Grid). In the new Android API level 17 (Jelly Bean 4.2), one of the features is Nested Fragments. The new functionality description says: if you use ViewPager to create fragments that swipe left and right and consume a majority of the screen space, you can now insert fragments into each fragment page. So, if I understand right, now I can create a ViewPager with Fragments (with a button inside for example) inside, and when user press the button show another Fragment without loose the ViewPager using this new feature. I expend my morning trying to implement this on several ways but I can´t made it... Can somebody show a simple example of how to do this? PS: I'm only interested in doing at this way, with getChildFragmentManager to learn how works.

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• pysqlite2: ProgrammingError - You must not use 8-bit bytestrings

  - by rfkrocktk

  I'm currently persisting filenames in a sqlite database for my own purposes. Whenever I try to insert a file that has a special character (like é etc.), it throws the following error: pysqlite2.dbapi2.ProgrammingError: You must not use 8-bit bytestrings unless you use a text_factory that can interpret 8-bit bytestrings (like text_factory = str). It is highly recommended that you instead just switch your application to Unicode strings. When I do "switch my application over to Unicode strings" by wrapping the value sent to pysqlite with the unicode method like: unicode(filename), it throws this error: UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 66: ordinal not in range(128) Is there something I can do to get rid of this? Modifying all of my files to conform isn't an option.

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• Nested/Child TransactionScope Rollback

  - by Robert Wagner

  I am trying to nest TransactionScopes (.net 4.0) as you would nest Transactions in SQL Server, however it looks like they operate differently. I want my child transactions to be able to rollback if they fail, but allow the parent transaction to decide whether to commit/rollback the whole operation. A greatly simplified example of what I am trying to do: static void Main(string[] args) { using(var scope = new TransactionScope()) // Trn A { // Insert Data A DoWork(true); DoWork(false); // Rollback or Commit } } // This class is a few layers down static void DoWork(bool fail) { using(var scope = new TransactionScope()) // Trn B { // Update Data A if(!fail) { scope.Complete(); } } } I can't use the Suppress or RequiresNew options as Trn B relies on data inserted by Trn A. If I do use those options, Trn B is blocked by Trn A. Any ideas how I would get it to work, or if it is even possible using the System.Transactions namespace? Thanks

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• Indexing vs. no indexing when inserting records

  - by jbu

  I have a few questions about whether or not it would be best to not use indexing. BACKGROUND: My records have a timestamp attribute, and the records will be inserted in order of their timestamps (i.e., inserted chronologically). QUESTIONS: If I DON'T use indexing is it typical for the database to insert the records in the order that they were inserted? If answer to #1 is yes, when I do a "SELECT .. WHERE timestamp X" type query will the database be efficient at it, or will it have to go through every single record since it isn't indexed? I would assume if there were no index, the database would not "know" that the records were inserted in sorted order and could not, therefore, make use of sorted property of the database. I assume a clustered index would be best for these types of records & their inserts. Please let me know what you guys think. Thanks, jbu

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• Entity Framework and consuming a WCF service

  - by nakori

  I'm getting data where the database is hidden behind a WCF service. Is it possible to use Entity Framework in a scenario where I have custom objects coming from a web service? (No access to the external database, and no current plans for insert/update/delete logic) Starting with an empty EF model and adding an entity I get this error on compile: No mapping specified for instances of the EntitySet and AssociationSet in the EntityContainer .. Is it possible to make an entity this way, and fill it with data received from an object? (In this case a WCF, but could also be a predefined model class/xml data) If the web service retured a Customer object I could do something like this with a dataset: Make an unbound table and do a loop through the customer properties adding them to a temp row, add it with tbl_Customer.Addtbl_CustomerRow(customerRow) to get my view filled. thanks, nakori

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• Calling oracle stored procedure from Excel - VBA

  - by Ram

  I have to execute an Oracle stored procedure from vba (Excel) with around 38 input parameters. The stored procedure will insert some values in the destination table once that is executed. When it is executed through VBA the number of fields which is inserted is less than when it is executed directly from the backend (oracle). For example it is creating around 17 fields of records while executing directly from the back end. (I have created a wrapper class in the back-end and passing the same parameter values in the back-end.). It is creating around 15 fields of records while executing from the excel VBA in the destination table. Kindly let me know what could be the possible reasons for this.

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• DELETE and EDIT is not working in my python program

  - by user2968025

  This is a simple python program that ADD, DELETE, EDIT and VIEW student records. The problem is, DELETE and EDIT is not working. I dont know why but when I tried removing one '?' in the DELETE dunction, I had the error that says there are only 8 columns and it needs 10. But originally, there are only 9 columns. I don't know where it got the other one to make it 10. Please help.. :( import sys import sqlite3 import tkinter import tkinter as tk from tkinter import * from tkinter.ttk import * def newRecord(): studentnum="" name="" age="" birthday="" address="" email="" course="" year="" section="" con=sqlite3.connect("Students.db") cur=con.cursor() cur.execute("CREATE TABLE IF NOT EXISTS student(studentnum TEXT, name TEXT, age TEXT, birthday TEXT, address TEXT, email TEXT, course TEXT, year TEXT, section TEXT)") def save(): studentnum=en1.get() name=en2.get() age=en3.get() birthday=en4.get() address=en5.get() email=en6.get() course=en7.get() year=en8.get() section=en9.get() student=(studentnum,name,age,birthday,address,email,course,year,section) cur.execute("INSERT INTO student(studentnum,name,age,birthday,address,email,course,year,section) VALUES(?,?,?,?,?,?,?,?,?)",student) con.commit() win=tkinter.Tk();win.title("Students") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Add Record") lbl.pack() lbl1=tkinter.Label(win,width=30,text="Student Number : ") lbl1.pack() en1=tkinter.Entry(win,width=30) en1.pack() lbl2=tkinter.Label(win,width=30,text="Name : ") lbl2.pack() en2=tkinter.Entry(win,width=30) en2.pack() lbl3=tkinter.Label(win,width=30,text="Age : ") lbl3.pack() en3=tkinter.Entry(win,width=30) en3.pack() lbl4=tkinter.Label(win,width=30,text="Birthday : ") lbl4.pack() en4=tkinter.Entry(win,width=30) en4.pack() lbl5=tkinter.Label(win,width=30,text="Address : ") lbl5.pack() en5=tkinter.Entry(win,width=30) en5.pack() lbl6=tkinter.Label(win,width=30,text="Email : ") lbl6.pack() en6=tkinter.Entry(win,width=30) en6.pack() lbl7=tkinter.Label(win,width=30,text="Course : ") lbl7.pack() en7=tkinter.Entry(win,width=30) en7.pack() lbl8=tkinter.Label(win,width=30,text="Year : ") lbl8.pack() en8=tkinter.Entry(win,width=30) en8.pack() lbl9=tkinter.Label(win,width=30,text="Section : ") lbl9.pack() en9=tkinter.Entry(win,width=30) en9.pack() btn1=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Save Student",command=save) btn1.pack() def editRecord(): studentnum1="" def edit(): studentnum1=en10.get() studentnum="" name="" age="" birthday="" address="" email="" course="" year="" section="" con=sqlite3.connect("Students.db") cur=con.cursor() row=cur.fetchone() cur.execute("DELETE FROM student WHERE name = '%s'" % studentnum1) con.commit() def save(): studentnum=en1.get() name=en2.get() age=en3.get() birthday=en4.get() address=en5.get() email=en6.get() course=en7.get() year=en8.get() section=en8.get() student=(studentnum,name,age,email,birthday,address,email,course,year,section) cur.execute("INSERT INTO student(studentnum,name,age,email,birthday,address,email,course,year,section) VALUES(?,?,?,?,?,?,?,?,?)",student) con.commit() win=tkinter.Tk();win.title("Students") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Edit Reocrd :"+'\t'+studentnum1) lbl.pack() lbl1=tkinter.Label(win,width=30,text="Student Number : ") lbl1.pack() en1=tkinter.Entry(win,width=30) en1.pack() lbl2=tkinter.Label(win,width=30,text="Name : ") lbl2.pack() en2=tkinter.Entry(win,width=30) en2.pack() lbl3=tkinter.Label(win,width=30,text="Age : ") lbl3.pack() en3=tkinter.Entry(win,width=30) en3.pack() lbl4=tkinter.Label(win,width=30,text="Birthday : ") lbl4.pack() en4=tkinter.Entry(win,width=30) en4.pack() lbl5=tkinter.Label(win,width=30,text="Address : ") lbl5.pack() en5=tkinter.Entry(win,width=30) en5.pack() lbl6=tkinter.Label(win,width=30,text="Email : ") lbl6.pack() en6=tkinter.Entry(win,width=30) en6.pack() lbl7=tkinter.Label(win,width=30,text="Course : ") lbl7.pack() en7=tkinter.Entry(win,width=30) en7.pack() lbl8=tkinter.Label(win,width=30,text="Year : ") lbl8.pack() en8=tkinter.Entry(win,width=30) en8.pack() lbl9=tkinter.Label(win,width=30,text="Section : ") lbl9.pack() en9=tkinter.Entry(win,width=30) en9.pack() btn1=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Save Record",command=save) btn1.pack() win=tkinter.Tk();win.title("Edit Student") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Edit Record") lbl.pack() lbl10=tkinter.Label(win,width=30,text="Student Number : ") lbl10.pack() en10=tkinter.Entry(win) en10.pack() btn2=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Edit",command=edit) btn2.pack() def deleteRecord(): studentnum1="" win=tkinter.Tk();win.title("Delete Student Record") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Delete Record") lbl.pack() lbl10=tkinter.Label(win,text="Student Number") lbl10.pack() en10=tkinter.Entry(win) en10.pack() def delete(): studentnum1=en10.get() con=sqlite3.connect("Students.db") cur=con.cursor() row=cur.fetchone() cur.execute("DELETE FROM student WHERE name = '%s';" % studentnum1) con.commit() win=tkinter.Tk();win.title("Record Deleted") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Record Deleted :") lbl.pack() lbl=tkinter.Label(win,width=30,text=studentnum1) lbl.pack() btn=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Ok",command=win.destroy) btn.pack() btn2=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Delete",command=delete) btn2.pack() def viewRecord(): con=sqlite3.connect("Students.db") cur=con.cursor() win=tkinter.Tk();win.title("View Student Record"); row=cur.fetchall() lbl1=tkinter.Label(win,background="#000",foreground="#ddd",width=300,text="\n\tStudent Number"+"\t\tName"+"\t\tAge"+"\t\tBirthday"+"\t\tAddress"+"\t\tEmail"+"\t\tCourse"+"\t\tYear"+"\t\nSection") lbl1.pack() for row in cur.execute("SELECT * FROM student"): lbl2=tkinter.Label(win,width=300,text= row[0] + '\t\t' + row[1] + '\t' + row[2] + '\t\t' + row[3] + '\t\t' + row[4] + '\t\t' + row[5] + '\t\t' + row[6] + '\t\t' + row[7] + '\t\t' + row[8] + '\n') lbl2.pack() con.close() but1=tkinter.Button(win,background="#000",foreground="#fff", width=150,text="Close",command=win.destroy) but1.pack() root=tkinter.Tk();root.title("Student Records") menubar=tkinter.Menu(root) manage=tkinter.Menu(menubar,tearoff=0) manage.add_command(label='New Record',command=newRecord) manage.add_command(label='Edit Record',command=editRecord) manage.add_command(label='Delete Record',command=deleteRecord) menubar.add_cascade(label='Manage',menu=manage) view=tkinter.Menu(menubar,tearoff=0) view.add_command(label='View Record',command=viewRecord) menubar.add_cascade(label='View',menu=view) root.config(menu=menubar) lbl=tkinter.Label(root,background="#000",foreground="#ddd",font=("Verdana",15),width=30,text="Student Records") lbl.pack() lbl1=tkinter.Label(root,text="\nSubmitted by :") lbl1.pack() lbl2=tkinter.Label(root,text="Chavez, Vissia Nicole P") lbl2.pack() lbl3=tkinter.Label(root,text="BSIT 4-4") lbl3.pack()

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• There is insufficient system memory to run this query when creating temporary table

  - by phenevo

  StringBuilder query = new StringBuilder(); query.Append("CREATE TABLE #Codes (Code nvarchar(100) collate database_default ) "); query.Append("Insert into #Codes (Code) "); int lengthOfCodesArray = targetCodes.Length; for (int index = 0; index < lengthOfCodesArray; index++) { string targetCode = targetCodes[index]; query.Append("Select N'" + targetCode + "' "); if (index != lengthOfCodesArray - 1) { query.Append("Union All "); } } query.Append("drop table #Codes "); on: cmd.ExecuteReader() I get There is insufficient system memory to run this query when creating temporary table But weird thing is that, when I have 25k codes is ok, when 5k I get this error. Initial size is 262 MB. Lengt of each code is average 15.

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• PHP - Foreach in a foreach + CodeIgniter

  - by Sebhael

  I got an image upload function working, but there's 4 images required in this image. And my current function is simply just overwriting the image despite the number. I'm wondering how I would insert (preferably) a letter into my foreach function. $uploads = array($this->uploads->data()); foreach ( $uploads as $key[] => $value ) { $imagename = $cleaned . '-s' . $value['file_ext']; //outputs clean-name-s.ext } By the time all is said and done, 4 images will require this function. Leaving me with clean-name-sa.ext, clean-name-sb.ext, clean-name-sc.ext, and clean-name-sd.ext (numbers work as well). The form does require that all 4 fields are filled out before submission, so would I just create an array of my desired identifiers and create a foreach loop that outputs 4 different $imagenames? Or is there a simpler, more logical approach to this.

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• Instance validation error: '2' is not a valid value for QueryType. (web service)

  - by Anthony Shaw

  I have a web service that I am passing an enum public enum QueryType { Inquiry = 1 Maintainence = 2 } When I pass an object that has a Parameter of QueryType on it, I get the error back from the web service saying that '2' is not a valid value for QueryType, when you can clearly see from the declaration of the enum that it is. I cannot change the values of the enum because legacy applications use the values, but I would rather not have to insert a "default" value just to push the index of the enum to make it work with my web service. It acts like the web service is using the index of the values rather than the values themselves. Does anybody have a suggestion of what I can do to make it work, is there something I can change in my WSDL?

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• Quick question on session security.

  - by Scarface

  Hey guys, I was scanning my site for security and I noticed that it was possible for non users to send requests and post information, so I decided to put login checks on all information posts. I was wondering if it was a good way to keep a session id that is created by md5(uniqid()); in a session variable $_SESSION['id']=md5(uniqid()); for each user and then store that in a database under active users for that user. Then when a user tries to insert information, verify that their $_SESSION['id'] variable is equal to the one in the database where the username equals their $_SESSION['username']. What are your ideas on this guys? Thanks in advance!

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• Why is IoC / DI not common in Python?

  - by tux21b

  In Java IoC / DI is a very common practice which is extensively used in web applications, nearly all available frameworks and Java EE. On the other hand, there are also lots of big Python web applications, but beside of Zope (which I've heard should be really horrible to code) IoC doesn't seem to be very common in the Python world. (Please name some examples if you think that I'm wrong). There are of course several clones of popular Java IoC frameworks available for Python, springpython for example. But none of them seems to get used practically. At least, I've never stumpled upon a Django or sqlalchemy+<insert your favorite wsgi toolkit here> based web application which uses something like that. In my opinion IoC has reasonable advantages and would make it easy to replace the django-default-user-model for example, but extensive usage of interface classes and IoC in Python looks a bit odd and not »pythonic«. But maybe someone has a better explanation, why IoC isn't widely used in Python.

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• Hibernate list operation question

  - by Sumit Kishore

  I'm working on a utility to update a list of entities in a database as a group. The database contains a list of entities. The result of the update is a new list. The API accepts this new list. The update may end up modifying some of the entities in the list, creating new ones and deleting some. So at the entity level, I may have to do any of an insert, delete or update operation. But it's always true that the final list in the database will be the same as the list passed down to the API. Is there in Hibernate a way to treat this operation at the list level, that is, tell Hibernate to persist this list of entities, and let it take care of which need to be created, updated or deleted? There is no entity/table representing this list, btw. Just the entities themselves in a table.

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• How to handle encrypted column in SQL Server Database in LINQ to SQL?

  - by Raja

  Hi Guys, We are in the process of encrypting all the SSN columns (had to do it now due to security audit). We already built the DBML and now we have to change it. Can you guys let me know if there is a good way of handling this in LINQ to SQL? We use stored procedures for Insert, Update and Delete but use LINQ to SQL for all our selects (ease of use). Do I have to change the format for those tables with SSN or Is there any other manner we can handle it in LINQ to SQL? Thanks, Raja

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• jQuery trigger uploadify click event not working in firefox FF

  - by drew

  I want to select an option on a drop down box and for this to trigger the uploadify available to jQuery which lets you upload a file. My solution works in IE7 but not FF. When you change the drop down it should show a window to browse for a file to upload. In FF nothing appears. In IE everything works. JS is enabled in FF, if I insert alert messages it gets to the point of triggering the click on the input button. 0 1 $(document).ready(function() { $('.fileupload1').uploadify({ 'uploader' : '../../../admin/uploadFileResources/uploadify.swf', 'script' : '../../../admin/uploadFileResources/upload.cfm', 'cancelImg' : '../../../admin/uploadFileResources/cancel.png', 'folder' : '../../../upload_BE/offers/htmlfiles/5953/images/', 'multi' : true }); $('.selectLogoTop').change(function(){ $('.fileupload1').trigger("click"); }); });

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