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• Is this sufficient to prevent query injection while using SQL Server?

  - by Derek Adair

  Hi, I have recently taken on a project in which I need to integrate with PHP/SQL Server. I am looking for the quickest and easiest function to prevent SQL injection on SQL Server as I prefer MySQL and do not anticipate many more SQL Server related projects. Is this function sufficient? $someVal = mssql_escape($_POST['someVal']); $query = "INSERT INTO tblName SET field = $someVal"; mssql_execute($query); function mssql_escape($str) { return str_replace("'", "''", $str); } If not, what additional steps should I take?

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• tips for learning from opensource

  - by dole doug

  Hi there, Besides practice(practice and more practice) reading books and forums, analyzing others people code is a must in order to have a career in this field. The problem is that I'm a student(feels like always on learning stage) but sometimes i can't solve the problems by my own. I was thinking that on public open source repositories might be the answer I'm looking for. My question is how can i find the answer to some of my problems in open source projects/community? Do you have any tips to share for me? ty

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• MVC Client Validation from Service Layer

  - by GibboK

  I'm following this article http://www.asp.net/mvc/tutorials/older-versions/models-(data)/validating-with-a-service-layer-cs to include a Service Layer with Business Logic in my MVC Web Application. I'm able to pass messages from the Service Layer to the View Model in a Html.ValidationSummary using ModelState Class. I perform basic validation logic on the View Model (using DataAnnotation attributes) and I have ClientValidation enabled by default which displaying the error message on every single field of my form. The Business logic error message which come from the Service Layer are being displayed on Html.ValidationSummary only after Posting the form to the Server. After Validation from the Service Layer I would like highlight one or more fields and have the message from the Service Layer showing on these fields instead that the Html.ValidationSummary. Any idea how to do it? Thanks

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• How to prevent GetOleDbSchemaTable from returning duplicate sheet names from Excel workbook

  - by Richard Bysouth

  Hi I have a function to return a DataView containing info on sheets in an Excel Workbook, as follows: Public Function GetSchemaInfo() As DataView Using connection As New OleDbConnection(GetConnectionString()) connection.Open() Dim schemaTable As DataTable = connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, Nothing) connection.Close() Return New DataView(schemaTable) End Using End Function This works fine except that if the workbook has linked data (i.e. pulls its data from another workbook), duplicate sheet names are returned. For example, Workbook1 has a single worksheet, Sheet1. I get 2 rows in the DataView, with the TABLE_NAME field being "Sheet1$" and "Sheet1$_". OK, I could use a RowFilter, but wondered whether there was a better way or why this extra row is returned? thanks Richard

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• Custom Display Form with Custom Workflow button

  - by Ifi

  I have created a new custom list form that will show 4 fields on the page from a Custom List called "Shipment". I have added Form Action button that I would like to run a custom action that is set inside of a Workflow. Currently, the form displays the fields for "Manifest Number", "Pickup Location", "Delivery Location", & "Scheduled Pickup Time". When the user clicks the Form Action button, what I want the Workflow to do is go to the ID field of the displayed content in the Form and change the value of the "Picked Up" column from No to Yes. The problem I am having is passing the ID of the displayed information from the Form to the Workflow as a variable. I can get the "Picked Up" column to update if I specify the value in the "Update List Item" window under the "Find the List Item" section, but I cannot figure out how to do this dynamically from the Form

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• Rails Model Relationship: Has one but also belongs to many

  - by Lowgain

  I have two Models, Modela and Modelb. Modela can only own one Modelb, but Modelb can be a part of many Modela's. What I have right now is class Modela < ActiveRecord::Base has_one :modelb end class Modelb < ActiveRecord::Base belongs_to :modela, :foreign_key => "modela_id" #might not make sense? end Not too sure about the whole :foreign_key thing I was doing there, but it was where it was when I left off. As I am trying to allow Modelb to be part of many Modela's, I don't want to add a modela_id field to the Modelb table. What is the best way to do this?

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• Flash CS4/AS3 Dynamic Text Box

  - by Jono

  Hi, I have created a XML image gallery, which displays text in between each slide. Now I have created a movie clip with a dynamic text field (with Render HTML selected) to display the text from the XML which is pushed into an array. Now, this all works great BUT... /n or /r is not creating a new line break (as they need to be custom). Yet if I create an Array and manually push strings "Bla bla bla /n bla bla bla" I get a line break. I have tried converting the Array item to string (even though it already is), I would also avoid creating textField = new textField() any Ideas would be welcomed. Cheers

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• Adding help button for each window

  - by Miraaj

  Hi all, I have found that user can associate help with his application using Help Viewer. Users typically launch Help Viewer by choosing the application help item from the Help menu, or by typing a query in the Spotlight For Help text field in the Help menu. I have some different requirement: I want to associate component specific help to my application, means that there will be a small '?' marked icon at bottom left corner of a window and when user clicks it, appropriate help page will open. This case is similar to 'print' panels where there is a small '?' icon. Can anyone suggest me some way to accomplish it, if it is possible? Thanks, Miraaj

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• Using Parallel Extensions with ThreadStatic attribute. Could it leak memory?

  - by the-locster

  I'm using Parallel Extensions fairly heavily and I've just now encountered a case where using thread locla storrage might be sensible to allow re-use of objects by worker threads. As such I was lookign at the ThreadStatic attribute which marks a static field/variable as having a unique value per thread. It seems to me that it would be unwise to use PE with the ThreadStatic attribute without any guarantee of thread re-use by PE. That is, if threads are created and destroyed to some degree would the variables (and thus objects they point to) remain in thread local storage for some indeterminate amount of time, thus causing a memory leak? Or perhaps the thread storage is tied to the threads and disposed of when the threads are disposed? But then you still potentially have threads in a pool that are longed lived and that accumulate thread local storage from various pieces of code the threads are used for. Is there a better approach to obtaining thread local storage with PE? Thankyou.

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• Rails - how can I query the db w/o touching the sessions table

  - by sa125

  Hi - I'm trying to provide a HTTP api to my app that queries a db that's read-only (for replication purposes). I find that my app crashes repeatedly when making a request b/c the call is trying to update the sessions table whenever I query the db. This doesn't happen when I return some text without hitting the database for info. class APIController < AplicationController def view data = Product.find(params[:id]).to_json # will fail data = { :one => 1, :two => 2 }.to_json # will succeed respond_to do |format| format.html { render :json => data } end end end How do I restrict it from touching the sessions table on this request (it's currently issuing an UPDATE on the updated_at field for that session). thanks.

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• GeForce 8800GT not even giving basic output

  - by Sam

  My Dad bought a GeForce 8800GT graphics card quite a long time ago now. It has never worked in his PC. Print out from a dxdiag: System Information Time of this report: 4/13/2010, 19:52:40 Machine name: USER-PC Operating System: Windows Vista™ Home Premium (6.0, Build 6001) Service Pack 1 (6001.vistasp1_gdr.091208-0542) Language: English (Regional Setting: English) System Manufacturer: To Be Filled By O.E.M. System Model: To Be Filled By O.E.M. BIOS: Default System BIOS Processor: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz (4 CPUs), ~2.3GHz Memory: 2046MB RAM Page File: 1045MB used, 3296MB available Windows Dir: C:\Windows DirectX Version: DirectX 10 DX Setup Parameters: Not found DxDiag Version: 6.00.6001.18000 32bit Unicode DxDiag Notes Display Tab 1: No problems found. Sound Tab 1: No problems found. Sound Tab 2: No problems found. Sound Tab 3: No problems found. Input Tab: No problems found. DirectX Debug Levels Direct3D: 0/4 (retail) DirectDraw: 0/4 (retail) DirectInput: 0/5 (retail) DirectMusic: 0/5 (retail) DirectPlay: 0/9 (retail) DirectSound: 0/5 (retail) DirectShow: 0/6 (retail) Display Devices Card name: ATI Radeon HD 2400 PRO Manufacturer: ATI Technologies Inc. Chip type: ATI Radeon Graphics Processor (0x94C3) DAC type: Internal DAC(400MHz) Device Key: Enum\PCI\VEN_1002&DEV_94C3&SUBSYS_00000000&REV_00 Display Memory: 1012 MB Dedicated Memory: 245 MB Shared Memory: 767 MB Current Mode: 1280 x 960 (32 bit) (75Hz) Monitor: Generic PnP Monitor Driver Name: atiumdag.dll,atiumdva.dat,atitmmxx.dll Driver Version: 7.14.0010.0523 (English) DDI Version: 10 Driver Attributes: Final Retail Driver Date/Size: 8/22/2007 02:43:14, 3021312 bytes That info is from the current card that is installed in it and has been installed since its purchase roughly 3-4 years ago. When I physically install the card I put it into a purple slot on the motherboard that the old card was in (if I go into the device manager and select properties on the current card it confirms that the slot is a "PCI Slot 16 (PCI bus 2, device 0, function 0)") and boot up the computer but get absolutely no output. The screen that we have registers that it is connected to something (by not displaying the screen it does when the cable is unplugged) but just remains blank, no output at all. I recently took the card to my University and one of my friends who is better with hardware issues than I am tried it in his system and it worked perfectly. No issues whatsoever. I do not have a spec list for his system but I could get one if you need it. If you need any more information on this issue I will be happy to supply you with it as I am starting to get very annoyed with this problem ^_^

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• MySQL table export to HTML

  - by countnazgul

  Hi all, I've got a little problem with exporting MySQL data to html. The problem is that in one field i have values like this: <a href="http://google.com">Google</a> and when i export the table in html format the generated html table for this fields contains: &lt;a href=&quot;http://google.com&quot;&gt;Google&lt;/a&gt; which is not a valid html link. Is there way to export the table without mysql to convert the < and > chars? Thanks!

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• Drupal Background Image as Block or Node

  - by Marcy Sutton

  Hi There. I am having trouble wrapping my head around how to make editable background images in my custom Drupal 6 theme. My client wants to have a different background image for each main section (which use multiple content types: page, blog, image gallery)... I am wondering, is there a way to make a custom content type into a dynamic background image block? I am using the Image, Image Cache, Views, CCK, Image Assist, Panels, Filefield, and Imagefield modules. What I'd like to do is add a background image field to various content types that allows a user to reference an image from the content library or upload a new image (similar to ImageAssist), and have it apply to a region in my template. Any suggestions on the best approach for this? Thank you!

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• mysql way to make a lock in a php page

  - by Cris

  Hello, i have the following mysql table: myTable: id int auto_increment voucher int not null id_user int null I've populated voucher field with values from 1 to 100000 so i've got 100000 records; when a user clicks a button in a PHP page, i need to allocate a record for the user so i make something similar like: update myTable set id_user=XXX where voucher=(SELECT * FROM (SELECT MIN(voucher) FROM myTable WHERE id_user is null) v); The problem is that I don't use locks and i should use them because if two users click in the same moment i risk to assign the same voucher to different persons (2 updates in the same record so i lose 1 user) ... I think there must be a correct way to do this, can you help me please? Thanks ! cris

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• how to write re-usable views in django?

  - by rz

  These are the techniques that I use regularly to make my views reusable: take the template_name as an argument with a default take an optional extra_context which defaults to empty {} right before the template is rendered the context is updated with the extra_context for further re-usability, call any callable in extra_context.values() whenever the view deals with a queryset, there is a queryset argument with a default whenever the view needs a particular object from the ORM, it attempts to fetch it using any "id" parameter in several ways (e.g. as a slug, as a database id) (this may be a bad practice...) First, Should I add anything to my list? Should I remove anything from my list? The items accommodates a large number of cases. However, whenever an app extends a model of another in some way (e.g. adding a field or changing the behavior in some way) I end up writing my own views and only reusing the model. Is this normal?

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• Making TeX tables smaller?

  - by user248237

  I have a LaTeX table that looks like this: \begin{table}[!ht] \centering \small \caption{ \bf{Caption}} \begin{tabular}{l|c|c|l|c|c|c|c|c} field1 & field 2 & ... \\ \hline ... the problem is that even with "\small" the table is too big, since I use: \usepackage{setspace} \doublespacing in the header. How can I: 1) Make the table single spaced? and 2) Make the table smaller? I'd like it to fit on an entire page. thanks.

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• Problem on IE6-8 with jQuery

  - by Alain Fontaine

  Hello guys, I'm stuck here with this IE6 issue.. always a pain. So I'm using jQuery's "live" feature to add a product each time. Then once each dropdown's value is changed, an input field assigned to it changes its value too so when I hit submit, it sends all the info. Everything works perfectly fine except in IE6, IE7, and IE8. I have no idea why... I've gone through the code and everything... so please guys. Help! :) These are all the files: Index.php http://pastie.org/967139 Submit.php http://pastie.org/967140 JS http://pastie.org/967141 Please guys, I'm really stuck here. I would appreciate some help. Thanks, Alain

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• Is it the right time to get a Master's degree?

  - by harshit

  I'm currently a software engineer in India and have been working for 3,5 years. Before recession started I decided to study further and planned for a Master of Science degree in computer science in Fall09, since I want to explore more of this field. I have got an admission in Univ of Texas @ Dallas. I am confused about whether I should go for studying at the time of recession or not and how the market will be once I graduate in 2011 Jan. Any views will be appreciated.

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• GAE datastore eager loading in python api

  - by tomus

  I have two models in relation one-to-many: class Question(db.Model): questionText = db.StringProperty(multiline=False) class Answer(db.Model): answerText = db.StringProperty(multiline=False) question = db.ReferenceProperty(Question, collection_name='answers') I have front-end implemented in Flex and use pyamf to load data. When i try to load all answers with related questions all works as desired and I can access field answer.question however in case of loading questions (e.g. by Questions.all() ), 'question.answers' remains empty/null (though on server/python side I can revise question.answers without problem - probably after lazy-loading). So is it possible to load all questions along with answers ? (I know this is possible in JPA Java api but what about python ?) Shoud I use additional setting, GQL query or django framework to make it work ?

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• excel 2007 vba: how to refer to HPageBreaks

  - by notnot

  I'm trying to write a macro which can look into the list of horizontal page breaks that a worksheet keeps, and it seems like HPageBreaks should be exactly that. I can add or remove page breaks from it, but I can't seem to isolate the collection itself to look at its contents. Even adding a watch and looking at ActiveSheet.HPageBreaks just brings up a generic looking object with a count field equal to 0 regardless of existing page breaks. I'm really confused about this now. Is there any way to look into the existing page breaks within a sheet? A listing of what rows they occur on/between would be great.

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• loading data from file into 2d array

  - by Chris

  I am just starting with perl and would like some help with arrays please. I am reading lines from a data file and splitting the line into fields: open (INFILE, $infile); do { my $linedata = <INFILE>; my @data= split ',',$linedata; .... } until eof; I then want to store the individual field values (in @data) in and array so that the array looks like the input data file ie, the first "row" of the array contains the first line of data from INFILE etc. Each line of data from the infile contains 4 values, x,y,z and w and once the data are all in the array, I have to pass the array into another program which reads the x,y,z,w and displays the w value on a screen at the point determined by the x,y,z value. I can not pas the data to the other program on a row-by-row basis as the program expects the data to in a 2d matrtix format. Any help greatly appreciated. Chris

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• Reading correctly alphanumeric fields into R

  - by gd047

  A tab-delimited text file, which is actually an export (using bcp) of a database table, is of that form: 102 1 01 e113c 3224.96 12 102 1 01 e185 101127.25 12 102 2 01 e185 176417.90 12 102A 3 01 e185 26261.03 12 I tried to import it in R with a command like data <- read.delim("C:\\test.txt", header = FALSE, sep = "\t") The problem is that the 3rd column which is actually a varchar field (alphanumeric) is mistakenly read as integer (as there are no letters in the entire column) and the leading zeros disappeared. The same thing happened when I imported the data directly from the database, using odbcConnect. Again that column was read as integer. str(data) $ code: int 1 1 1 1 1 1 6 1 1 8 ... How can I import such a dataset in R correctly, so as to be able to safely populate that db table again, after doing some data manipulations?

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• Cocoa Key Value Bindings: What are the explanations of the various options for Controller Key?

  - by Elisabeth

  When I bind a control to an NSArrayController using Interface Builder, there are a variety of options under the "Controller Key" field in the bindings inspector. I understand what "arrangedObjects" is, and I semi-understand what "selection" is, but I'd love to see a really nice explanation of all the options and when to use each one. The list includes: selectionIndexes, selectionIndex, selectedObject, sortDescriptors, etc. I haven't been able to find a good explanation of these options. I'm having trouble with a button that's bound to target selection, so I'm hoping a much deeper understanding of these Controller Keys might help me debug my issue. Thanks!!!

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• Operating system for visualization app in 6 monitors

  - by Federico

  Hi. I have to plan the development for an application with these major requirements: Show different graphical data and animations in 6 monitors, in fullscreen mode. The hardware to be used is a PC with 3 NVIDIA GeForce 9800 GX2 cards. I have some expertise working with OpenGL, but never with more than one monitor. I have the (some limited) freedom to choose an operating system for the application. My options are: Windows XP, Windows Vista, Windows 7, Ubuntu 8.04/10.04. I would like to know, if you have some expertise or knowledge in the multi-monitor application development field, what is the recommended operating system for this kind of application? And, do I need any software other than the operating system and the NVIDIA drivers to be able to use the 6 monitors in fullscreen, showing different things in each one of them? Any comment/answer will be really appreciated. Thanks in advance! Federico

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• Getting consecutive version numbers from Hibernate's @Version usage once per transaction

  - by Cheradenine

  We use Hibernate with the following version definition for optimistic locking et. al: <version name="version" access="field" column="VERSION" type="long" unsaved-value="negative"/> This is fine and dandy; however, there is one small problem, which is that the first version for some entities is '0', and for others, it is '1'. Why this is happening, is that for some object graphs, an entity will be subject to both onSave and flushDirty - this is reasonable, such as if two object are circular dependencies. However, the version number gets incremented on both occasions, leading to the above '0' / '1' discrepancy. I'd really like the version number only to ever increment once per transaction. However, I can't see a simple way to do this in the hibernate versioning implementation, without hacking about with an Interceptor (which was how I generated a column value for version before, but I wanted hibernate to do it itself)..

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