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• MySQL optimized sentence

  - by Ivan

  I have a simple table where I have to extract some records. The problem is that the evaluation function is a very time-consuming stored procedure so I shouldn't to call it twice like in this sentence: SELECT *, slow_sp(row) FROM table WHERE slow_sp(row)>0 ORDER BY dist DESC LIMIT 10 First I thought in optimize like this: SELECT *, slow_sp(row) AS value FROM table WHERE value>0 ORDER BY dist DESC LIMIT 10 But it doesn't works due "value" is not processed when the WHERE clause is evaluated. Any idea to optimize this sentence? Thanks.

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• What are ping packets made of?

  - by Mr. Man

  What exactly are in the packets that are sent via the ping command? I was reading a Wikipedia article about magic numbers and saw this: DHCP packets use a "magic cookie" value of '63 82 53 63' at the start of the options section of the packet. This value is included in all DHCP packet types. so what else is in the packets?

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• Prevent SQL injection from form-generated SQL.

  - by Markos Fragkakis

  Hi all, I have a search table where user will be able to filter results with a filter of the type: Field [Name], Value [John], Remove Rule Field [Surname], Value [Blake], Remove Rule Field [Has Children], Value [Yes], Remove Rule Add Rule So the user will be able to set an arbitrary set of filters, which will result essentially in a completely dynamic WHERE clause. In the future I will also have to implement more complicated logical expressions, like Where (name=John OR name=Nick) AND (surname=Blake OR surname=Bourne), Of all 10 fields the user may or may not filter by, I don't know how many and which filters the user will set. So, I cannot use a prepared statement (which assumes that at least we know the fields in the WHERE clause). This is why prepared statements are unfortunately out of the question, I have to do it with plain old, generated SQL. What measures can I take to protect the application from SQL Injection (REGEX-wise or any other way)?

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• Drupal 5: CCK fields in custom content type

  - by Kuroki Kaze

  I have module that implements custom content type via NodeAPI hooks (hook_insert, hook_update etc). I want to add CCK field to this content type and populate it via hook_nodeapi calls like create or update (to show content nodes in Views). Problem is, I cannot access CCK fields for this content type. Sure, it's enabled on "Manage Fields" page, but when I load any node of this type with Devel module, I cannot see field attribute (field_flag) in node object. I can see it under "Dev Render" tab as part of "content" attribute, like $node-content['field_flag']['#value'], but if I assign value to $node-field_flag or $node-content['field_flag']['#value'] and call node_save, CCK fields are not saved. Maybe I must call some other function to save CCK fields? Or what may be wrong with this setup?

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• ASP Calendar control returns Date type but I need Datetime to insert into SQL Server 2005

  - by rafael

  Hello, I am using a ASP Calendar control to insert a datetime value into a field to be part of an insert to a SQL Server 2005 db table. I get the following error when i submit the form to server and try to insert into table: [ArgumentException: The version of SQL Server in use does not support datatype 'date'.] Seems like Calendar control returns a Date type value. How could i make the Calendar control return a Datetime value instead? I know now that SQL Server 2005 does not support Date type fields.

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• Best way to store enum values in database - String or Int

  - by inutan

  Hello there, I have a number of enums in my application which are used as property type in some classes. What is the best way to store these values in database, as String or Int? FYI, I will also be mapping these attribute types using fluent Nhibernate. Sample code: public enum ReportOutputFormat { DOCX, PDF, HTML } public enum ReportOutputMethod { Save, Email, SaveAndEmail } public class ReportRequest { public Int32 TemplateId { get { return templateId; } set { templateId = value; } } public ReportOutputFormat OutputFormat { get { return outputFormat; } set { outputFormat = value; } } public ReportOutputMethod OutputMethod { get { return outputMethod; } set { outputMethod = value; } } }

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• Regex - replace only last part of an expression

  I'm attempting to find the best methodology for finding a specific pattern and then replace the ending portion of the pattern. Here is a quick example (in C#): //Find any year value starting with a bracket or underscore string patternToFind = "[[_]2007"; Regex yearFind = new Regex(patternToFind); //I want to change any of these values to x2008 where x is the bracket or underscore originally in the text. I was trying to use Regex.Replace(), but cannot figure out if it can be applied. If all else fails, I can find Matches using the MatchCollection and then switch out the 2007 value with 2008; however, I'm hoping for something more elegant MatchCollections matches = yearFind.Matches(" 2007 [2007 _2007"); foreach (Match match in matches){ //use match to find and replace value }

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• Conditional formatting with date and time

  - by Kiran

  I have a problem on conditional formatting with date and time. I hava a cell A1 that has date and time and I want to conditionally format its adjecent cell if the value of cell A1 is greater than 3 days compared to today, then cell A2 should show as "Follow-up Required" and cell colour should turn red no. if cell value of A1 is less than 3 days compared to today, no action is required. Please help. Regards, Kiran

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• JTable filled with database data is not being updated when columns are reordered.

  - by marionmaiden

  I have a JTable filled with data of a table of my database (so I used ResultSetTableModel) and using TableRowSorter to sort the rows, as I click in one column of the JTable. The data is displayed in the jTable without problems; But when I sort the JTable by some column table (for example, sorting it by the primary key value), and edit some cell from the sorted jTable, the value changed is the old cell that were in that position before the ordenation of the column. For example: Suppose I have a table with 2 columns - name and age. My table has the following data: c 1 b 2 a 3 when I order i by name in the JTable, it becomes like this a 3 b 2 c 1 if I edit the value "1", after the edition, the table becomes like this a 1 b 2 c 1 It seems that the positions are not being updated in the JTable, and the values are edited considering their original positions.

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• Using only alphanumeric characters(a-z) inside toCharArray

  - by Aaron

  Below you will find me using toCharArray in order to send a string to array. I then MOVE the value of the letter using a for statement... for(i = 0; i < letter.length; i++){ letter[i] += (shiftCode); System.out.print(letter[i]); } However, when I use shiftCode to move the value such as... a shifted by -1; I get a symbol @. Is there a way to send the string to shiftCode or tell shiftCode to ONLY use letters? I need it to see my text, like "aaron", and when I use the for statement iterate through a-z only and ignore all symbols and numbers. I THINK it is as simple as... letter=codeWord.toCharArray(a,z); But trying different forms of that and googling it didn't give me any results. Perhaps it has to do with regex or something? Below you will find a complete copy of my program; it works exactly how I want it to do; but it iterates through letters and symbols. I also tried finding instructions online for toCharArray but if there exists any arguments I can't locate them. My program... import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /* * Aaron L. Jones * CS219 * AaronJonesProg3 * * This program is designed to - * Work as a Ceasar Cipher */ /** * * Aaron Jones */ public class AaronJonesProg3 { static String codeWord; static int shiftCode; static int i; static char[] letter; /** * @param args the command line arguments */ public static void main(String[] args) throws IOException { // Instantiating that Buffer Class // We are going to use this to read data from the user; in buffer // For performance related reasons BufferedReader reader; // Building the reader variable here // Just a basic input buffer (Holds things for us) reader = new BufferedReader(new InputStreamReader(System.in)); // Java speaks to us here / We get it to query our user System.out.print("Please enter text to encrypt: "); // Try to get their input here try { // Get their codeword using the reader codeWord = reader.readLine(); // Make that input upper case codeWord = codeWord.toUpperCase(); // Cut the white space out codeWord = codeWord.replaceAll("\\s",""); // Make it all a character array letter = codeWord.toCharArray(); } // If they messed up the input we let them know here and end the prog. catch(Throwable t) { System.out.println(t.toString()); System.out.println("You broke it. But you impressed me because" + "I don't know how you did it!"); } // Java Speaks / Lets get their desired shift value System.out.print("Please enter the shift value: "); // Try for their input try { // We get their number here shiftCode = Integer.parseInt(reader.readLine()); } // Again; if the user broke it. We let them know. catch(java.lang.NumberFormatException ioe) { System.out.println(ioe.toString()); System.out.println("How did you break this? Use a number next time!"); } for(i = 0; i < letter.length; i++){ letter[i] += (shiftCode); System.out.print(letter[i]); } System.out.println(); /**************************************************************** **************************************************************** ***************************************************************/ // Java speaks to us here / We get it to query our user System.out.print("Please enter text to decrypt: "); // Try to get their input here try { // Get their codeword using the reader codeWord = reader.readLine(); // Make that input upper case codeWord = codeWord.toUpperCase(); // Cut the white space out codeWord = codeWord.replaceAll("\\s",""); // Make it all a character array letter = codeWord.toCharArray(); } // If they messed up the input we let them know here and end the prog. catch(Throwable t) { System.out.println(t.toString()); System.out.println("You broke it. But you impressed me because" + "I don't know how you did it!"); } // Java Speaks / Lets get their desired shift value System.out.print("Please enter the shift value: "); // Try for their input try { // We get their number here shiftCode = Integer.parseInt(reader.readLine()); } // Again; if the user broke it. We let them know. catch(java.lang.NumberFormatException ioe) { System.out.println(ioe.toString()); System.out.println("How did you break this? Use a number next time!"); } for(i = 0; i < letter.length; i++){ letter[i] += (shiftCode); System.out.print(letter[i]); } System.out.println(); } }

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• Best practice for assigning A/B test variation based on IP address

  - by mojones

  I am starting to write some code for A/B testing in a Grails web application. I want to ensure that requests from the same IP address always see the same variation. Rather than store a map of IP-variant, is it OK to simply turn the IP address into an integer by removing the dots, then use that as the seed for a random number generator? The following is taking place in a Grails Filter: def ip = request.remoteAddr def random = new Random(ip.replaceAll(/\./, '').toInteger()) def value = random.nextBoolean() session.assignment = value // value should always be the same for a given IP address I know that identifying users by IP address is not reliable, and I will be using session variables/cookies as well, but this seems to be useful for the case where we have a new session, and no cookies set (or the user has cookies disabled).

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• Automatic translation from fortran 90 to f77

  - by osgx

  Hello Is there an converter from fortran 90 downto fortran 77 ? I have a fortran77 only compiler and want to run NAS Parallel Benchmark (NPB for short) on it. But NPB uses some features of F90, like do enddo, smth else. All features are rather simple. Is there A way to translate NPB to F77 strict language? Tags: fortran parallel convert programming-languages

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• Does a version control database storage engine exist?

  - by Zak

  I was just wondering if a storage engine type existed that allowed you to do version control on row level contents. For instance, if I have a simple table with ID, name, value, and ID is the PK, I could see that row 354 started as (354, "zak", "test")v1 then was updated to be (354, "zak", "this is version 2 of the value")v2 , and could see a change history on the row with something like select history (value) where ID = 354. It's kind of an esoteric thing, but it would beat having to keep writing these separate history tables and functions every time a change is made...

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• Simple Custom rule for Jquery validator

  - by thatweblook

  Hi, I read your reply regarding the jQuery validator where you outline a method to check a username against a value in a database. Ive tried implementing this method but no matter what is returned from the PHP file I always get the message that the username is already taken. Here is ths custom method... $.validator.addMethod("uniqueUserName", function(value, element) { $.ajax({ type: "POST", url: "php/get_save_status.php", data: "checkUsername="+value, dataType:"html", success: function(msg) { // if the user exists, it returns a string "true" if(msg == "true") return false; // already exists return true; // username is free to use } })}, "Username is Already Taken"); And here is the validate code... username: { required: true, uniqueUserName: true }, Is there a specific way i am supposed to return the message from php. Thanks A

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• Array of previous weeks

  - by azz0r

  Hello, I am trying to create an array of weeks for users to select to view stats week on week. What I'm looking for is an array that has the timestamp of week start (monday 00.00 to sunday 11.59) that I can then use in MYSQL queries. Has anyone got an code that might assist? I was thinking of doing something like: $number_of_weeks = 4; $week_array = array(); foreach ($number_of_weeks as $week) { $number_of_weeks--; $value = $number_of_weeks * 604800; $StartOfLastWeek = 6 + date("w",mktime()); $week_array[$number_of_week]['start'] = date('Y-m-d', strtotime("-$StartOfLastWeek day"), $value); $week_array[$number_of_week]['end'] = date('Y-m-d', strtotime("-$StartOfLastWeek day"), $value+ 604800); }

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• Web Service URL change is not recognized

  - by ila

  I deployed in a production environment a .net solution that consumes a web service added as "Service reference" in visual studio. Today the endpoint URL has changed, and I modified that URL in web.config. But when I run the solution I get the error: System.ServiceModel.FaultException: Server did not recognize the value of HTTP Header SOAPAction: http://93.62.150.200/LogEvent. Now that sound strange to me. As you can see, the IP is 93.62.... but the new value is different. The web.config entry (with the new value or the URL) is: <client> <endpoint address="http://213.92.50.215/sawfc/WS_SAWFC_Int.asmx" binding="basicHttpBinding" bindingConfiguration="wsSAWFCInterfaceSoap" contract="it.datasphere.ws.wsSAWFCInterfaceSoap" name="wsSAWFCInterfaceSoap" /> </client> I cannot reach the new web service from dev environment, so I cannot modify the Service reference there. Any idea? Thanks a lot!

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• Jackson + Builder Pattern?

  - by Gili

  I'd like Jackson to deserialize a class with the following constructor: public Clinic(String name, Address address) Deserializing the first argument is easy. The problem is that Address is defined as: public class Address { private Address(Map<LocationType, String> components) ... public static Builder { public Builder setCity(String value); public Builder setCountry(String value); public Address create(); } } and is constructed like this: new Address.Builder().setCity("foo").setCountry("bar").create(); Is there a way to get key-value pairs from Jackson in order to construct the Address myself? Alternatively, is there a way to get Jackson to use the Builder class itself?

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• Creating an XSD schema

  - by Nikolai

  I have an xml tag: <ROW field1="value 1" field2="value 2" ... /> fieldi has a string value, and number of attributes fieldi is variable, but not less than 1. Is it possible to create an xsd schema for this tag? possible xml document <ROWDATA> <ROW field1="dfgdf" field2="ddfg"></ROW> <ROW field1="dfedf" field2="djkfg" field3="cdffd"></ROW> <ROW field1="dfedf" field2="djkfg" field3="cdffd" field4="dfedf" field5="djkfg" field6="cdffd"></ROW> </ROWDATA> in this xml document, which I receive from a web server, can be a variable number of attributes field (I noted them as fieldi, where i means the order of a specific attribute field) So I have, unknown number of ROW elements and unknown number of field attributes in the ROW element Thanks

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• How to modify the attributes by putting dynamic node paths

  - by sam

  I have a code that selects all elements and their child nodes DECLARE @x XML DECLARE @node_no int DECLARE @count int DECLARE @max INT, @i INT EXECUTE return_xml '1', NULL, @x output Declare @temp Table ( id int not null identity(1,1), ParentNodeName varchar(max), NodeName varchar(max), NodeText varchar(max) ) INSERT INTO @temp SELECT t.c.value('local-name(..)', 'varchar(max)') AS ParentNodeName, t.c.value('local-name(.)', 'varchar(max)') AS NodeName, t.c.value('text()[1]', 'varchar(max)') AS NodeText FROM @x.nodes('/booking//*') AS t(c) select * from @temp Now I want to modify the attributs by putting dynamic node paths SET @x.modify (' insert attribute MyId {sql:variable("@i")} as first into (ParentNodeName/NodeName::*[position() = sql:variable("@i")])[1] ') where id = id of temp table any Idea how can I modify my whole xml this way as I am having a untyped xml and have to add an attribute in every node

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• HASH reference error with HTTP::Message::decodable

  - by scarba05

  Hi, I'm getting an "Can't use an undefined value as a HASH reference" error trying to call HTTP::Message::decodable() using Perl 5.10 / libwww installed on Debian Lenny OS using the aptitude package manager. I'm really stuck so would appreciate some help please. Here's the error: Can't use an undefined value as a HASH reference at (eval 2) line 1. at test.pl line 4 main::__ANON__('Can\'t use an undefined value as a HASH reference at enter code here`(eval 2)...') called at (eval 2) line 1 HTTP::Message::__ANON__() called at test.pl line 6 Here's the code: use strict; use HTTP::Request::Common; use Carp; $SIG{ __DIE__ } = sub { Carp::confess( @_ ) }; print HTTP::Message::decodable();

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• How to read values from Gridview columns controls in WPF

  - by Sarat

  hi frnds, I am using a WPF application, in which i placed a listview control which has 3 gridview columns. First Gridview column has a label Control and the remaining 2 gridview columns has textbox control. Now my problem is if the user enters a value in the first Gridview textbox column, the second gridview textbox column should be updated with some value. Is there any way to do that. I am filling the list view with a datatable from code behind file. And also is there any way to get the value of the label control in the 1st gridview column. Thanks in advance urs Frnd :)

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• In Zabbix how to zero data when it doesn't come?

  - by Jader Dias

  If a variable is expected to be fetched every minute, and it doesn't happen, the graph shows the last known value for all the timespan until the next known value. The expected behavior for me is that the graph showed no line, or a line next to the zero, where there is no data. How to achieve this with Zabbix?

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• Set selected using jQuery

  - by Charles Marsh

  Evening All, Happy new year! I'm trying to change the selected option within this list.. Its only working for some and not others? selectedVal will either be Kelly Green, Navy etc... var selectedVal = $(this).text(); $("#product-variants-option-0 option[text=" + selectedVal+"]").attr("selected","selected") ; This is the select list: <select class="single-option-selector" id="product-variants-option-0"> <option value="Gunmetal Heather">Gunmetal Heather</option> <option value="Kelly Green">Kelly Green</option> <option value="Navy">Navy</option> </select>

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• How to use Fluent style syntactic sugar with c# property declaration

  - by Thomas

  i never use fluent style code before. so first time i tried to develop Fluent style with c# property declaration but getting error. can any one help me. public class MailTemplate { string _MailBody = ""; public MailTemplate MailBody { get { return _MailBody; } set { _MailBody = value ; } } string _Subject = ""; public MailTemplate Subject { get { return _Subject; } set { _Subject = value; } } string _MailFrom = ""; public MailTemplate MailFrom { get { return _MailFrom; } set { _MailFrom = value; } } } please help me how could assign or initialize mail body and later also can read with same property name. i think proeprty can not be use in case of fluent style development. need some light here. thanks

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• How do I add artwork to an iTunes track with obj-c AppleScript?

  - by demonslayer319

  aTrack is an ITReference* object, value is an NSImage* object, initialized via a URL to a jpeg. [[[[[aTrack artworks] data_] set] to:value] send]; I get the following message in GDB: 2010-03-09 16:59:42.860 Sandbox[2260:a0f] Can't pack object of class NSImage (unsupported type): <NSImage 0x10054a440 Size={0, 0} Reps=( I then tried the following code: NSData *imageData = [[NSData alloc] initWithData:[value TIFFRepresentation]]; [[[[[aTrack artworks] data_] set] to:imageData] send]; and get this message instead 2010-03-09 16:46:09.341 Sandbox[2193:a0f] Can't pack object of class NSConcreteData (unsupported type): <4d4d002a 00000000> In the AppleScript documentation, it says that the "data" property of the "artwork" item is a PICTPicture image. How do I convert an NSImage to a PICT? Am I using the AppleScript all wrong?

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