Search Results

Search found 24117 results on 965 pages for 'write through'.

Page 592/965 | < Previous Page | 588 589 590 591 592 593 594 595 596 597 598 599  | Next Page >

• How do I host a Google gadget? How does it work?

  - by sintaloo

  I just spent 5 hours by checking Google gadgets websites and FAQs, but I still have no idea how to host a gadget. What I've figured from reading the Google documentation: I can write gadgets with XML, JavaScript etc.. Gadgets can be added to iGoogle etc.. Google can host the gadgets for you. Gadgets can be hosted anywhere else??? All of the above information doesn't answer my question. For instance, with jQuery or Dojo Toolkit, I can download the JavaScript framework and use it. With Google gadgets, I can not find a download link for a framework. Why? Does Google provide its framework? If not, why does the documentation indicate that gadgets can be hosted anywhere? I am totally confused. A brief explanation or some helpful links are very welcome! Thanks a lot!!!

  Read the article

• Is using Natural Join or Implicit column names not a good practice when writing SQL in a programming

  - by Jian Lin

  When we use Natural Join, we are joining the tables when both table have the same column names. But what if we write it in PHP and then the DBA add some more fields to both tables, then the Natural Join can break? The same goes for Insert, if we do a insert into gifts values (NULL, "chocolate", "choco.jpg", now()); then it will break the code as well as contaminating the table when the DBA adds some fields to the table (example as column 2 or 3). So it is always best to spell out the column names when the SQL statements are written inside a programming language and stored in a file in a big project.

  Read the article

• Materialized Query Table in SQL Server 2005

  - by Azho KG

  In DB2 there is a support for Materialized Query Table (MQT). Basicly you write a query and create a MQT. But the difference from View is that the query is pre-executed and resulting data is stored in MQT and there are some options when to refresh/syncronize the MQT with base tables. I want same functionality in SQL Server. Is there a way to achieve same result? I've tables with millions of rows, and I want to show summary (like total # of members, total expense and etc) in dashboard. So I don't want to count every time user gets to dashboard, instead I want to store them in table and I want that table to be refresh each night. Any kind of hints, answers,suggestions and ideas are welcome. Thanks.

  Read the article

• sql select statement with a group by

  - by user85116

  I have data in 2 tables, and I want to create a report. Table A: tableAID (primary key) name Table B: tableBID (primary key) grade tableAID (foreign key, references Table A) There is much more to both tables, but those are the relevant columns. The query I want to run, conceptually, is this: select TableA.name, avg(TableB.grade) where TableB.tableAID = TableA.tableAID The problem of course is that I'm using an aggregate function (avg), and I can rewrite it like this: select avg(grade), tableAID from TableB group by tableAID but then I only get the ID of TableA, whereas I really need that name column which appears in TableA, not just the ID. Is it possible to write a query to do this in one statement, or would I first need to execute the second query I listed, get the list of id's, then query each record in TableA for the name column... seems to me I'm missing something obvious here, but I'm (quite obviously) not an sql guru...

  Read the article

• implicit parameter definition in class

  - by coubeatczech

  implicit val odkaz = head; def vypis(implicit odkaz:Prvek):String = { odkaz match{ case null => "" case e => e.cislo + " " + e.pocet + "\n" + vypis(e.dalsi) } } ... def main(args:Array[String]){ val q = new MyQueue() // insert some values println(q.vypis) } This method(vypis) is a member of an queue-class so I'll always want to implicity start the recursion from the start of the queue, when calling the method from outside. Is there a way how to write it, that the method from outside calling, there's no paramter, but in inside, there's a parameter - for recursion...? The compiler complains that the parameter is not defined when called from outside

  Read the article

• Groovy Grails, How do you stream or buffer a large file in a Controller's response?

  - by Julian Noye

  Hi Guys I have a controller that makes a connection to a url to retrieve a csv file. I am able to send the file in the response using the following code, this works fine. def fileURL = "www.mysite.com/input.csv" def thisUrl = new URL(fileURL); def connection = thisUrl.openConnection(); def output = connection.content.text; response.setHeader "Content-disposition", "attachment; filename=${'output.csv'}" response.contentType = 'text/csv' response.outputStream << output response.outputStream.flush() However I don't think this method is inappropriate for a large file, as the whole file is loaded into the controllers memory. I want to be able to read the file chunk by chunk and write the file to the response chunk by chunk. Any ideas?

  Read the article

• Logical python question - handling directories and files in them

  - by Konstantin

  Hello! I'm using this function to extract files from .zip archive and store it on the server: def unzip_file_into_dir(file, dir): import sys, zipfile, os, os.path os.makedirs(dir, 0777) zfobj = zipfile.ZipFile(file) for name in zfobj.namelist(): if name.endswith('/'): os.mkdir(os.path.join(dir, name)) else: outfile = open(os.path.join(dir, name), 'wb') outfile.write(zfobj.read(name)) outfile.close() And the usage: unzip_file_into_dir('/var/zips/somearchive.zip', '/var/www/extracted_zip') somearchive.zip have this structure: somearchive.zip 1.jpeg 2.jpeg another.jpeg or, somethimes, this one: somearchive.zip somedir/ 1.jpeg 2.jpeg another.jpeg Question is: how do I modify my function, so that my extracted_zip catalog would always contain just images, not images in another subdirectory, even if images are stored in somedir inside an archive.

  Read the article

• Tools for code snippet execution

  - by nzpcmad

  By "code snippet execution", I mean the ability to write a few lines of code, run and test it without having to fire up an IDE and create a dummy project. It's incredibly useful for helping people with a small code sample without creating a project, compiling everything cleanly, sending them the code snippet and deleting the project. I'm not asking about the best code snippets or a snippet editor or where to store snippets! For C#, I use Snippet Compiler. For Java, I use Eclipse Scrapbook. For LINQ, I use LINQPad. Any suggestions for other (better?) tools? e.g. is there one for Java that doesn't involve firing up Eclipse? What about C?

  Read the article

• Referring to this pointer in a static assert?

  - by Tyson Jacobs

  Is it possible to write a static assert referring to the 'this' pointer? I do not have c++11 available, and BOOST_STATIC_ASSERT doesn't work. struct blah { void func() {BOOST_STATIC_ASSERT(sizeof(*this));} }; Produces: error C2355: 'this' : can only be referenced inside non-static member functions error C2027: use of undefined type 'boost::STATIC_ASSERTION_FAILURE' In MSVC 2008. Motivation: #define CLASS_USES_SMALL_POOL() \ void __small_pool_check() {BOOST_STATIC_ASSERT(sizeof(*this) < SMALL_MALLOC_SIZE;} \ void* operator new(size_t) {return SmallMalloc();} \ void operator delete(void* p) {SmallFree(p);}

  Read the article

• Why do software engineers hate writing documentation?

  - by Stewart Johnson

  I ask because I quite enjoy it! I'm talking about design documentation and implementation notes (NOT user manuals), which are non-existent in most of the codebases I've been handed. I can understand why a developer wouldn't want to write requirements (that's the analyst's job) or the user documentation (that's a technical writer's job) but I don't get why developers hate writing design docs. I don't think I would feel as if I'd finished the job if I only wrote the code and walked away -- mainly because when I've been introduced to code-only situations I've seen how hard it is to figure out what's been done and what the software does. I would hate for people to suffer the same situation when inheriting my code. What makes you loath writing supporting documentation for your code?

  Read the article

• NHibernate HQL logic problem

  - by Jon

  Hi I'm trying to write an NHibernate HQL query that makes use of parenthesis in the where clause. However, the HQL parser seems to be ignoring my parenthesis, thus changing the meaning of my statement. Can anyone shed any light on the matter? The following HQL query: from WebUser u left join fetch u.WebUserProfile left join fetch u.CommunicationPreferences where (u.CommunicationPreferences.Email = 0 and u.SyncDate is not null) or u.DateDeleted is not null translates to: from WebUser webuser0_ left outer join WebUserProfile webuserpro1_ on webuser0_.UserId = webuserpro1_.WebUserId left outer join WebUserCommunicationPreferences communicat2_ on webuser0_.UserId = communicat2_.UserId where communicat2_.Email = 0 and (webuser0_.SyncDate is not null) or webuser0_.DateDeleted is not null Thanks Jon

  Read the article

• ASP.NET HTTPHandler not throwing exception when one is expected

  - by josephj1989

  I have an HttpHandler class (implements IHttphandler) where the path defined for the handler in web.config is *.jpg. I am requesting a Jpg image in my page. Within the HTTP Handler I am writing to a file in the filesystem. By mistake I was trying to write to a non existant directory. This should have thrown an exception but the execution simply proceeds.Ofcourse no file is written. But if I give a proper directory the file is written correctly.Is there anything special about HttpHandler Exceptions. See part of the code public void ProcessRequest(HttpContext context){ File.WriteAllLines(context.Request.ApplicationPath+@"\"+"resul.log",new string[]{"Entered JPG Handler"}); If I put a breakpoint on the File.WriteAllLines statement and then step over it I can see an exception occurring.

  Read the article

• Should I unit test my JavaScript?

  - by Joseph Silvashy

  I'm curious to if it would be valuable, I'd like to start using QUnit, but I really don't know where to get started. Actually I'm not going to lie, I'm new to testing in general, not just with JS. I'm hoping to get some tips to how I would start using unit testing with an app that already has a large amount of JavaScript (ok so about 500 lines, not huge, be enough to make me wonder if I have regression that goes unnoticed). How would you recommend getting started and Where would I write my tests? (for example its rails app, where is a logical place to have my JS tests, it would be cool if they could go in the /test directory but it's outside the public directory and thus not possible... err is it?)

  Read the article

• Shell script to process files

  - by Harish

  I need to write a Shell Script to process a huge folder of nearly 20 levels.I have to process each and every file and check which files contain lines like select insert update When I mean line it should take the line till I find a semicolon in that file. I should get a result like this C:/test.java select * from dual C:/test.java select * from test C:/test1.java select * from tester C:/test1.java select * from dual and so on.Right now I have a script to read all the files #!bin/ksh FILE=<FILEPATH to be traversed> TEMPFILE=<Location of Temp file> cd $FILE for f in `find . ! -type d`; do cat $FILE/addedText.txt>>$TEMPFILE/newFile.txt cat $f>>$TEMPFILE/newFile.txt rm $f cat $TEMPFILE/newFile.txt>>$f rm $TEMPFILE/newFile.txt done I have very little knowledge of awk and sed to proceed further in reading each file and achieve what I want to.Can anyone help me in this

  Read the article

• How can I parse a C header file with Perl?

  - by Alphaneo

  Hi, I have a header file in which there is a large struct. I need to read this structure using some program and make some operations on each member of the structure and write them back. For example I have some structure like const BYTE Some_Idx[] = { 4,7,10,15,17,19,24,29, 31,32,35,45,49,51,52,54, 55,58,60,64,65,66,67,69, 70,72,76,77,81,82,83,85, 88,93,94,95,97,99,102,103, 105,106,113,115,122,124,125,126, 129,131,137,139,140,149,151,152, 153,155,158,159,160,163,165,169, 174,175,181,182,183,189,190,193, 197,201,204,206,208,210,211,212, 213,214,215,217,218,219,220,223, 225,228,230,234,236,237,240,241, 242,247,249}; Now, I need to read this and apply some operation on each of the member variable and create a new structure with different order, something like: const BYTE Some_Idx_Mod_mul_2[] = { 8,14,20, ... ... 484,494,498}; Is there any Perl library already available for this? If not Perl, something else like Python is also OK. Can somebody please help!!!

  Read the article

• WinUSB application or User-Mode Driver as a filter driver for USB Analysis/Sniffer/Trending

  - by Robert

  A question to maybe some who have worked extensively with WinUSB APIs or use mode USB drivers - Does anyone know if the WinUSB API or a user mode driver can be used as a passive observer of USB connections, capturing notification of interrupts, control requests, data transfers...etc without interfering with other applications (such as iTunes) which would obviously require concurrent access to the device at the same time my application is monitoring the connection and displaying data on it? Or do you pretty much have to write a kernel-mode filter driver and inject yourself in the USB stack in order to make that happen? In the past, there have been a few credible options (libusb-win32 and usbsnoop to be specific) though both are built around the old DDK, not the Windows Driver Foundation, and are not really supported on a regular basis any more. I'm hesitant to build something significant around them, as a result.

  Read the article

• Issue in exec method

  - by mukul sharma

  Hi all, I am a having two python files file1.py and file2.py. I am using exec() to get the method/Variables defined in the file2.py. file1.py have a class as given below class one: def init(self): self.HOOK = None exec(file2.py) self.HOOK = Generate ### call the hook method #### self.HOOK() file2.py looks like as (There is no class define in file2.py) def Generate() do 1 do 2 Hello() def hello() print "hello" Now the problem is as When i run script it is giving a error global name Hello not found. If i remove Hello() from Generate method in file2.py then its work fine. I cant use import file2.py in file1.py,because in file2.py the only one method name (Generate) is fix (its taken as requirement). So apart from Genarate method user can define any method and can call this in generate method, because this approach is not working so i have to write whole code into generate method only and code is also repetitive. Any help is really appreciable...

  Read the article

• How to detect internet connectivity using java program

  - by Sunil Kumar Sahoo

  How to write a java program which will tell me whether I have internet access or not. I donot want to ping or create connection with some external url because if that server will be down then my program will not work. I want reliable way to detect which will tell me 100% guarantee that whether I have internet connection or not irrespective of my Operating System. I want the program for the computers who are directly connected to internet. I have tried with the below program URL url = new URL("http://www.xyz.com/"); URLConnection conn = url.openConnection(); conn.connect(); I want something more appropriate than this program Thanks Sunil Kumar Sahoo

  Read the article

• Custom Attributes on Class Members

  - by ccook

  I am using a Custom Attribute to define how a class's members are mapped to properties for posting as a form post (Payment Gateway). I have the custom attribute working just fine, and am able to get the attribute by "name", but would like to get the attribute by the member itself. For example: getFieldName("name"); vs getFieldName(obj.Name); The plan is to write a method to serialize the class with members into a postable string. Here's the test code I have at this point, where ret is a string and PropertyMapping is the custom attribute: foreach (MemberInfo i in (typeof(CustomClass)).GetMember("Name")) { foreach (object at in i.GetCustomAttributes(true)) { PropertyMapping map = at as PropertyMapping; if (map != null) { ret += map.FieldName; } } } Thanks in advance!

  Read the article

• Excel Question: I need a date and time formula to convert between time zones

  - by Harold Nottingham

  Hello, I am trying to find a way to calculate a duration in days between my, time zone (Central), and (Pacific; Mountain; Eastern). Just do not know where to start. My criteria would be as follows: Cell C5:C100 would be the timestamps in this format:3/18/2010 23:45 but for different dates and times. Cell D5:D100 would be the corresponding timezone in text form: Pacific; Mountain; Eastern; Central. Cell F5 would be where the duration in days would need to be. Just not sure how to write the formula to give me what I am looking for. I appreciate any assistance in advance. Thanks

  Read the article

• Perl unit test - start a tcp server & continue

  - by John

  I am trying to write a unit test for a client server application. To test the client, in my unit test, I want to first start my tcp server (which itself is another perl file). I tried to start the tcp server by forking: if (! fork()) { system ("$^X server.pl") == 0 or die "couldn't start server" } So when I call "make test" after "perl Makefile.PL", this test starts & I can see the server starting but after that the unit test just hangs there. So I guess I need to start this server in background and I tried the "&" at the end to force it to start in background & then test to continue. But, I still couldn't succeed. What am I doing wrong? Thanks.

  Read the article

• .NET Library to Identify Pitches

  - by Antoni

  I'd like to write a simple program(preferably in C#) to which I sing a pitch using a mic and the program identifies to which musical note that pitch corresponds. Thank you very much for your prompt responses. I clarify: I'd like a (preferably .NET) library that would identify the notes I sing. I'd like that such a library: Identifies a note when I sing(a note from the chromatic scale). Tells me how much I'm off from the closest note. I intend to use such a library to sing one note a time.

  Read the article

• How to find out who's causing an access violation error?

  - by Fernando

  I'm getting reports that my app is causing a GPF on some Vista machines. The error message is something like this: access violation at 0x75784062 ( tried to write to 0x00000006) In order to fix this, I first need to know exactly who is causing this GPF: my main exe, some third party component, one of my own activex components, a dll, etc... How can I find this out? What tools can pinpoint the exact module that caused this mess? Any help would be greatly appreciated. PS My app is coded in VB6 and my activex controls are written in Delphi 2007.

  Read the article

• Get python tarfile to skip files without read permission

  - by chris

  I'm trying to write a function that backs up a directory with files of different permission to an archive on Windows XP. I'm using the tarfile module to tar the directory. Currently as soon as the program encounters a file that does not have read permissions, it stops giving the error: IOError: [Errno 13] Permission denied: 'path to file'. I would like it to instead just skip over the files it cannot read rather than end the tar operation. This is the code I am using now: def compressTar(): """Build and gzip the tar archive.""" folder = 'C:\\Documents and Settings' tar = tarfile.open ("C:\\WINDOWS\\Program\\archive.tar.gz", "w:gz") try: print "Attempting to build a backup archive" tar.add(folder) except: print "Permission denied attempting to create a backup archive" print "Building a limited archive conatining files with read permissions." for root, dirs, files in os.walk(folder): for f in files: tar.add(os.path.join(root, f)) for d in dirs: tar.add(os.path.join(root, d))

  Read the article

• I like to learn computer science and programming, but i have no understanding.

  - by Josiah

  Hi all, I like to learn computer science and programming, but i don't know where and how to start. For the past two months, i have been researching on types of programming, i found my interest in desktop programming, and also found this subjects (discrete maths, logic, algorithms, data structures, artificial intelligence, simulation) said to be a most known (subjects). Well as a beginner, i have no understanding on what type of language or books that can cover all these subjects, or even how to write any code. Secondly, am as young as you can guess and i need a language to start with that will be easy for me to understand, and books to read. Thank you.

  Read the article

< Previous Page | 588 589 590 591 592 593 594 595 596 597 598 599  | Next Page >