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• How to iterate & retrieve values from NSArray of NSArrays of NSDictionaries

  - by chinjazz

  I'm stumpped on how iterate and get values for an Array of Arrays of NSDictionaries (different classes/entities). Here's what I'm currently doing: 1) Constructing two separate arrays of NSDictionaries (different entities) 2) Combining both arrays with: NSMutableArray *combinedArrayofDicts = [[NSMutableArray alloc] initWithObjects: sizesArrayOfDicts, wishListArrayOfDicts , nil]; 3) Then archive combinedArrayofDicts : NSData *dataToSend = [NSKeyedArchiver archivedDataWithRootObject:combinedArrayofDicts]; 4) Transmit over GameKit [self.session sendDataToAllPiers:dataToSend withDataMode: GKSendDataReliable error:nil]; 5) How would I manage traversing thru this array on the receiving end? I want to fetch values by for each class which is key'ed by classname: Here's how it looks via NSLog (2 Sizes Dicts, and 1 Wishlist Dict) Printing description of receivedArray: <__NSArrayM 0xbc65eb0>( <__NSArrayM 0xbc651f0>( { classname = Sizes; displayOrder = 0; share = 1; sizeType = Neck; value = "13\" or 33 (cm)"; }, { classname = Sizes; displayOrder = 0; share = 1; sizeType = Sleeve; value = "34\" or 86 (cm)"; } ) , <__NSArrayM 0xbc65e80>( { classname = Wishlist; detail = ""; displayOrder = 0; imageString = ""; latitude = "30.33216666666667"; link = "http://maps.google.com/maps?q=loc:30.332,-81.41"; longitude = "-81.40949999999999"; name = bass; share = 1; store = ""; } ) ) (lldb) In my for loop I'm issuing this: NSString *value = [dict objectForKey:@"classname"]; and get an exception: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM objectForKey:]: unrecognized selector sent to instance 0xbc651f0' Is this frowned upon as far as mixing object types in arrays of arrays?

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• Create an index only on certain rows in mysql

  - by dhruvbird

  So, I have this funny requirement of creating an index on a table only on a certain set of rows. This is what my table looks like: USER: userid, friendid, created, blah0, blah1, ..., blahN Now, I'd like to create an index on: (userid, friendid, created) but only on those rows where userid = friendid. The reason being that this index is only going to be used to satisfy queries where the WHERE clause contains "userid = friendid". There will be many rows where this is NOT the case, and I really don't want to waste all that extra space on the index. Another option would be to create a table (query table) which is populated on insert/update of this table and create a trigger to do so, but again I am guessing an index on that table would mean that the data would be stored twice. How does mysql store Primary Keys? I mean is the table ordered on the Primary Key or is it ordered by insert order and the PK is like a normal unique index? I checked up on clustered indexes (http://dev.mysql.com/doc/refman/5.0/en/innodb-index-types.html), but it seems only InnoDB supports them. I am using MyISAM (I mention this because then I could have created a clustered index on these 3 fields in the query table). I am basically looking for something like this: ALTER TABLE USERS ADD INDEX (userid, friendid, created) WHERE userid=friendid

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• float** allocation limit + serialized struct problem. Need advice!

  - by jmgunn

  basically im getting an allocation limit error/warning when i create a float** array. the function i am calling to fill the float** retrieves data from a struct loaded from a file. The function works fine when i use one object but when i load 2 objects into memory i get the limit error. I am pretty sure this is to do with byte alignment or a similar thing because my struct is saved with a float** member which i am sure you are not susposed to do !?! Please confirm this! The next question i have now is how to save/serialize the float** member of this struct? I cant really afford to put an upper bound on the array ie "float [10000][3]" because i need/want to use this structure as a base for many other types of objects that may have well under the upper bound. Stroking my chin here! Any help/advice will recieve my highest gratitude. BTW these said struct objects will be used in a game/graphics package, the float** is a float[3] array for storing vertices in a model. Much thanks in advance

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• Difference between the address space of parent process and its child process in Linux?

  - by abbas1707

  Hi, I am confused about it. I have read that when a child is created by a parent process, child gets a copy of its parent's address space. What it means here by copy? If i use code below, then it prints same addresses of variable 'a' which is on heap in all cases. i.e in case of child and parent. So what is happening here? #include <sys/types.h> #include <stdio.h> #include <unistd.h> #include <stdlib.h> int main () { pid_t pid; int *a = (int *)malloc(4); printf ("heap pointer %p\n", a); pid = fork(); if (pid < 0) { fprintf (stderr, "Fork Failed"); exit(-1); } else if (pid == 0) { printf ("Child\n"); printf ("in child heap pointer %p\n", a); } else { wait (NULL); printf ("Child Complete\n"); printf ("in parent heap pointer %p\n", a); exit(0); } }

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• How to give "Share with" option while opening documents in iphone mail

  - by rishabh

  So I've been going through the "Document Interaction Programming Topics for iOS". I've been able to achieve the "Open with myapp" option through Mail, was wondering how can I change the option to "Share with myapp" depending upon the file types specified? This is what I've tried: <key>CFBundleDocumentTypes</key> <array> <dict> <key>CFBundleTypeName</key> <string>Document</string> <key>LSHandlerRank</key> <string>Alternate</string> <key>CFBundleTypeRole</key> <string>Owner</string> <key>LSItemContentTypes</key> <array> <string>public.data</string> </array> </dict> </array>

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• What's a good way to integrate FB and Twitter into my commenting system (PHP)

  - by Jason

  Hi Guys, There are so many options out there for integration. At the moment I have comments that are posted on my articles, where a user types in their name and the comment. This is then sent to a moderation queue and displayed when approved. I want to acheive this: Comment with facebook login (ie facebook account listed as the name w/ avatar) Comment with twitter login (ie twitter account name listed as the name w/ avatar) Push comment from my website to twitter and to facebook I could go down a few paths as far as I know: Integrate with XFBML, which I don't like because I find it annoying to setup and messy. Integrate facebook comments system, although this can't push to twitter, or allow me to moderate comments from my backend (as far as I can tell i'd have to login under the facebook login for the dev account to moderate the comment) Find a php class that does open auth and integrate with both face book and twitter at once find a pre-created php class Anyone have a solution that will bias: a. easy to integrate b. lightweight c. is free Thanks for your suggestions in advance.

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• What goes into the "Controller" in "MVC"?

  - by P72endragon

  I think I understand the basic concepts of MVC - the Model contains the data and behaviour of the application, the View is responsible for displaying it to the user and the Controller deals with user input. What I'm uncertain about is exactly what goes in the Controller. Lets say for example I have a fairly simple application (I'm specifically thinking Java, but I suppose the same principles apply elsewhere). I organise my code into 3 packages called app.model, app.view and app.controller. Within the app.model package, I have a few classes that reflect the actual behaviour of the application. These extends Observable and use setChanged() and notifyObservers() to trigger the views to update when appropriate. The app.view package has a class (or several classes for different types of display) that uses javax.swing components to handle the display. Some of these components need to feed back into the Model. If I understand correctly, the View shouldn't have anything to do with the feedback - that should be dealt with by the Controller. So what do I actually put in the Controller? Do I put the public void actionPerformed(ActionEvent e) in the View with just a call to a method in the Controller? If so, should any validation etc be done in the Controller? If so, how do I feedback error messages back to the View - should that go through the Model again, or should the Controller just send it straight back to View? If the validation is done in the View, what do I put in the Controller? Sorry for the long question, I just wanted to document my understanding of the process and hopefully someone can clarify this issue for me!

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• Is there command-line tool to extract typedef, structure, enumeration, variable, function from a C or C++ file?

  - by FooF

  I am desiring a command-line tool to extract a definition or declaration (typedef, structure, enumeration, variable, or function) from a C or C++ source file. Also a way to replace an existing definition/declaration would be handy (after transforming the extracted definition by a user-submitted script). Is there such generic tool available, or is some resonably close approximation of such a tool? Scriptability and ability to hook-up with user created scripts or programs is of importance here, although I am academically curious of GUI programs too. Open source solutions for Unix/Linux camp are preferred (although I am curious of Windows and OS X tools too). Primary language interests are C and C++ but more generic solution would be even better (I think we do not need super accurate parsing capabilities for finding, extracting and replacing a definition in a program source file). Sample Use Cases (extra - for the curious mind): Given deeply nested structs and variable (array) initializations of these types, suppose there is a need to change a struct definition by adding or reordering fields or rewriting the variable/array definitions in more readable format without introducing errors resulting from manual labor. This would work by extracting the old initializations, then using a script/program to write the new initializations to replace the old ones. For implementing a code browsing tool - extract a definition. Decorative code generation (e.g. logging function entries / returns). Scripted code structuring (e.g. extract this and that thing and put in different place without change - version control commit comment could document the command to perform this operation to make it evident and verifiable that nothing changed). Note about tags: More accurate tag than code-generation would be code-transformation but it does not exist.

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• Python server open all ports

  - by user1670178

  I am trying to open all ports using this code, why can I not create a loop to perform this function? http://www.kellbot.com/2010/02/tutorial-writing-a-tcp-server-in-python/ #!/usr/bin/python # This is server.py file ##server.py from socket import * #import the socket library n=1025 while n<1050: ##let's set up some constants HOST = '' #we are the host PORT = n #arbitrary port not currently in use ADDR = (HOST,PORT) #we need a tuple for the address BUFSIZE = 4096 #reasonably sized buffer for data ## now we create a new socket object (serv) ## see the python docs for more information on the socket types/flags serv = socket( AF_INET,SOCK_STREAM) ##bind our socket to the address serv.bind((ADDR)) #the double parens are to create a tuple with one element serv.listen(5) #5 is the maximum number of queued connections we'll allow serv = socket( AF_INET,SOCK_STREAM) ##bind our socket to the address serv.bind((ADDR)) #the double parens are to create a tuple with one element serv.listen(5) #5 is the maximum number of queued connections we'll allow print 'listening...' n=n+1 conn,addr = serv.accept() #accept the connection print '...connected!' conn.send('TEST') conn.close() How do I make this work so that I can specify input range and have the server open all ports up to 65535? #!/usr/bin/python # This is server.py file from socket import * #import the socket library startingPort=input("\nPlease enter starting port: ") startingPort=int(startingPort) #print startingPort def connection(): ## let's set up some constants HOST = '' #we are the host PORT = startingPort #arbitrary port not currently in use ADDR = (HOST,PORT) #we need a tuple for the address BUFSIZE = 4096 #reasonably sized buffer for data def socketObject(): ## now we create a new socket object (serv) serv = socket( AF_INET,SOCK_STREAM) def bind(): ## bind our socket to the address serv = socket( AF_INET,SOCK_STREAM) serv.bind((ADDR)) #the double parens are to create a tuple with one element serv.listen(5) #5 is the maximum number of queued connections we'll allow serv = socket( AF_INET,SOCK_STREAM) print 'listening...' def accept(): conn,addr = serv.accept() #accept the connection print '...connected!' conn.send('TEST') def close(): conn.close() ## Main while startingPort<65535: connection() socketObject() bind() accept() startingPort=startingPort+1

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• Rails Functional test assert_select javascript respond_to

  - by Macint

  Hello, I am currently trying to write functional tests for a charging form which gets loaded on to the page via AJAX(jQuery). It loads the form from the charge_form action which returns the consult_form.js.erb view. This all works, but I am having trouble with my testing. In the functional I can go to the action but I cannot use assert_select to find a an element and verify that the form is in fact there. Error: 1) Failure: test_should_create_new_consult(ConsultsControllerTest) [/test/functional/consults_controller_test.rb:8]: Expected at least 1 element matching "h4", found 0. <false> is not true. This is the view. consult_form.js.erb: <div id="charging_form"> <h4>Charging form</h4> <div class="left" id="charge_selection"> <%= select_tag("select_category", options_from_collection_for_select(@categories, :id, :name)) %><br/> ... consults_controller_test.rb: require 'test_helper' class ConsultsControllerTest < ActionController::TestCase def test_should_create_new_consult get_with_user :charge_form, :animal_id => animals(:one), :id => consults(:one), :format => 'js' assert_response :success assert_select 'h4', "Charging form" #can't find h4 end end Is there a problem with using assert_select with types other than html? Thank you for any help!

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• interface abstract in php real world scenario

  - by jason

  The goal is to learn whether to use abstract or interface or both... I'm designing a program which allows a user to de-duplicate all images but in the process rather then I just build classes I'd like to build a set of libraries that will allow me to re-use the code for other possible future purposes. In doing so I would like to learn interface vs abstract and was hoping someone could give me input into using either. Here is what the current program will do: recursive scan directory for all files determine file type is image type compare md5 checksum against all other files found and only keep the ones which are not duplicates Store total duplicates found at the end and display size taken up Copy files that are not duplicates into folder by date example Year, Month folder with filename is file creation date. While I could just create a bunch of classes I'd like to start learning more on interfaces and abstraction in php. So if I take the scan directory class as the first example I have several methods... ScanForFiles($path) FindMD5Checksum() FindAllImageTypes() getFileList() The scanForFiles could be public to allow anyone to access it and it stores in an object the entire directory list of files found and many details about them. example extension, size, filename, path, etc... The FindMD5Checksum runs against the fileList object created from scanForFiles and adds the md5 if needed. The FindAllImageTypes runs against the fileList object as well and adds if they are image types. The findmd5checksum and findallimagetypes are optionally run methods because the user might not intend to run these all the time or at all. The getFileList returns the fileList object itself. While I have a working copy I've revamped it a few times trying to figure out whether I need to go with an interface or abstract or both. I'd like to know how an expert OO developer would design it and why?

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• (Java) Is there a type of object that can handle anything from primitives to arrays?

  - by Michael

  I'm pretty new to Java, so I'm hoping one of you guys knows how to do this. I'm having the user specify both the type and value of arguments, in any XML-like way, to be passed to methods that are external to my application. Example: javac myAppsName externalJavaClass methodofExternalClass [parameters] Of course, to find the proper method, we have to have the proper parameter types as the method may be overloaded and that's the only way to tell the difference between the different versions. Parameters are currently formatted in this manner: (type)value(/type), e.g. (int)71(/int) (string)This is my string that I'm passing as a parameter!(/string) I parse them, getting the constructor for whatever type is indicated, then execute that constructor by running its method, newInstance(<String value>), loading the new instance into an Object. This works fine and dandy, but as we all know, some methods take arrays, or even multi-dimensional arrays. I could handle the argument formatting like so: (array)(array)(int)0(/int)(int)1(/int)(/array)(array)(int)2(/int)(int)3(/int)(/array)(/array)... or perhaps even better... {{(int)0(/int)(int)1(/int)}{(int)2(/int)(int)3(/int)}}. The question is, how can this be implemented? Do I have to start wrapping everything in an Object[] array so I can handle primitives, etc. as argObj[0], but load an array as I normally would? (Unfortunately, I would have to make it an Object[][] array if I wanted to support two-dimensional arrays. This implementation wouldn't be very pretty.)

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• SQL Server: Why use shorter VARCHAR(n) fields?

  - by chryss

  It is frequently advised to choose database field sizes to be as narrow as possible. I am wondering to what degree this applies to SQL Server 2005 VARCHAR columns: Storing 10-letter English words in a VARCHAR(255) field will not take up more storage than in a VARCHAR(10) field. Are there other reasons to restrict the size of VARCHAR fields to stick as closely as possible to the size of the data? I'm thinking of Performance: Is there an advantage to using a smaller n when selecting, filtering and sorting on the data? Memory, including on the application side (C++)? Style/validation: How important do you consider restricting colunm size to force non-sensical data imports to fail (such as 200-character surnames)? Anything else? Background: I help data integrators with the design of data flows into a database-backed system. They have to use an API that restricts their choice of data types. For character data, only VARCHAR(n) with n <= 255 is available; CHAR, NCHAR, NVARCHAR and TEXT are not. We're trying to lay down some "good practices" rules, and the question has come up if there is a real detriment to using VARCHAR(255) even for data where real maximum sizes will never exceed 30 bytes or so. Typical data volumes for one table are 1-10 Mio records with up to 150 attributes. Query performance (SELECT, with frequently extensive WHERE clauses) and application-side retrieval performance are paramount.

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• method works fine, until it is called in a function, then UnboundLocalError

  - by user1776100

  I define a method called dist, to calculate the distance between two points which I does it correctly when directly using the method. However, when I get a function to call it to calculate the distance between two points, I get UnboundLocalError: local variable 'minkowski_distance' referenced before assignment edit sorry, I just realised, this function does work. However I have another method calling it that doesn't. I put the last method at the bottom This is the method: class MinkowskiDistance(Distance): def __init__(self, dist_funct_name_str = 'Minkowski distance', p=2): self.p = p def dist(self, obj_a, obj_b): distance_to_power_p=0 p=self.p for i in range(len(obj_a)): distance_to_power_p += abs((obj_a[i]-obj_b[i]))**(p) minkowski_distance = (distance_to_power_p)**(1/p) return minkowski_distance and this is the function: (it basically splits the tuples x and y into their number and string components and calculates the distance between the numeric part of x and y and then the distance between the string parts, then adds them. def total_dist(x, y, p=2, q=2): jacard = QGramDistance(q=q) minkowski = MinkowskiDistance(p=p) x_num = [] x_str = [] y_num = [] y_str = [] #I am spliting each vector into its numerical parts and its string parts so that the distances #of each part can be found, then summed together. for i in range(len(x)): if type(x[i]) == float or type(x[i]) == int: x_num.append(x[i]) y_num.append(y[i]) else: x_str.append(x[i]) y_str.append(y[i]) num_dist = minkowski.dist(x_num,y_num) str_dist = I find using some more steps #I am simply adding the two types of distance to get the total distance: return num_dist + str_dist class NearestNeighbourClustering(Clustering): def __init__(self, data_file, clust_algo_name_str='', strip_header = "no", remove = -1): self.data_file= data_file self.header_strip = strip_header self.remove_column = remove def run_clustering(self, max_dist, p=2, q=2): K = {} #dictionary of clusters data_points = self.read_data_file() K[0]=[data_points[0]] k=0 #I added the first point in the data to the 0th cluster #k = number of clusters minus 1 n = len(data_points) for i in range(1,n): data_point_in_a_cluster = "no" for c in range(k+1): distances_from_i = [total_dist(data_points[i],K[c][j], p=p, q=q) for j in range(len(K[c]))] d = min(distances_from_i) if d <= max_dist: K[c].append(data_points[i]) data_point_in_a_cluster = "yes" if data_point_in_a_cluster == "no": k += 1 K[k]=[data_points[i]] return K

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• Overload the behavior of count() when called on certain objects

  - by Tom

  In PHP 5, you can use magic methods, overload some classes, etc. In C++, you can implement functions that exist is STL as long as the argument types are different. Is there a way to do this in PHP? An example of what I'd like to do is this: class a { function a() { $this->list = array("1", "2"); } } $blah = new a(); count($blah); I would like blah to return 2. IE count the values of a specific array in the class. So in C++, the way I would do this might look like this: int count(a varName) { return count(varName->list); } Basically, I am trying to simplify data calls for a large application so I can call do this: count($object); rather than count($object->list); The list is going to be potentially a list of objects so depending on how it's used, it could be really nasty statement if someone has to do it the current way: count($object->list[0]->list[0]->list); So, can I make something similar to this: function count(a $object) { count($object->list); } I know PHP's count accepts a mixed var, so I don't know if I can override an individual type.

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• int foo(type& bar); is a bad practice?

  - by Earlz

  Well, here we are. Yet another proposed practice that my C++ book has an opinion on. It says "a returning-value(non-void) function should not take reference types as a parameter." So basically if you were to implement a function like this: int read_file(int& into){ ... } and used the integer return value as some sort of error indicator (ignoring the fact that we have exceptions) then that function would be poorly written and it should actually be like void read_file(int& into, int& error){ } Now to me, the first one is much clearer and nice to use. If you want to ignore the error value, you do so with ease. But this book suggests the later. Note that this book does not say returning value functions are bad. It rather says that you should either only return a value or you should only use references. What are your thoughts on this? Is my book full of crap? (again)

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• Assigning a 2D array (of pointers) to a variable in an object for access in C++?

  - by MrMormon

  I'm sorry if I didn't pick a descriptive or concise name. A lot of questions sound similar, but I haven't been able to find what I'm looking for. What I want to do is store a 2D array of pointers somewhere and assign a variable in some object to that array to be able to access it. Here's some example code that has the same compile error I'm getting with a bigger project. #include <iostream> using namespace std; struct X{ float * b[8][8]; X(){ *(b[1][5]) = 1; cout << *(b[1][5]) << endl; } void Set(float * c[8][8]){ b = c; cout << *(b[1][5]) << endl; } }; main(){ float * a[8][8]; *(a[1][5]) = 2; X obj; obj.Set(a); } What I want to happen in this code is that an X object starts with its own 2D array, whose value pointed to by b[1][5] should be printed as "1". Then the main method's 2D array, a, is passed to the object's Set() method and assigned to its array variable. The value pointed to by b[1][5] should then be printed as "2". However, I can't figure out what type the Set() parameter, c, should be. I get error: incompatible types in assignment of ‘float* (*)[8]’ to ‘float* [8][8]’ when I try to compile. As for why I want to do this, I'm trying to use an array of pointers to objects, not floats, but it's the same error.

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• jquery find element next to another

  - by Thiganofx

  Hi I have the following html: <p> <input type="text" name="field2" /> <input type="hidden" name="fieldh2"/> <button type="button" class="sendInfo">Send</button> </p> What I want is that when user clicks the button, I need to send using ajax the contents of the field field. This is what i'm trying to do with no success. $(function() { $('button.sendInfo').live('click', function() { var id = $(this).parent().next('[type=text]').val(); alert(id); }); }); I plan to set what the user types in textbox to the hidden field, and the value received from the ajax call to normal textbox. But the problem is that i can´t even get the value of the textbox that is in the same line as the button the user clicks. Can anyone help me? Thanks a lot.

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• Is there any way to output the actual array in c++

  - by user2511129

  So, I'm beginning C++, with a semi-adequate background of python. In python, you make a list/array like this: x = [1, 2, 3, 4, 5, 6, 7, 8, 9] Then, to print the list, with the square brackets included, all you do is: print x That would display this: [1, 2, 3, 4, 5, 6, 7, 8, 9] How would I do the exact same thing in c++, print the brackets and the elements, in an elegant/clean fashion? NOTE I don't want just the elements of the array, I want the whole array, like this: {1, 2, 3, 4, 5, 6, 7, 8, 9} When I use this code to try to print the array, this happens: input: #include <iostream> using namespace std; int main() { int anArray[9] = {1, 2, 3, 4, 5, 6, 7, 8, 9}; cout << anArray << endl; } The output is where in memory the array is stored in (I think this is so, correct me if I'm wrong): 0x28fedc As a sidenote, I don't know how to create an array with many different data types, such as integers, strings, and so on, so if someone can enlighten me, that'd be great! Thanks for answering my painstakingly obvious/noobish questions!

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• Java getMethod with subclass parameter

  - by SelectricSimian

  I'm writing a library that uses reflection to find and call methods dynamically. Given just an object, a method name, and a parameter list, I need to call the given method as though the method call were explicitly written in the code. I've been using the following approach, which works in most cases: static void callMethod(Object receiver, String methodName, Object[] params) { Class<?>[] paramTypes = new Class<?>[params.length]; for (int i = 0; i < param.length; i++) { paramTypes[i] = params[i].getClass(); } receiver.getClass().getMethod(methodName, paramTypes).invoke(receiver, params); } However, when one of the parameters is a subclass of one of the supported types for the method, the reflection API throws a NoSuchMethodException. For example, if the receiver's class has testMethod(Foo) defined, the following fails: receiver.getClass().getMethod("testMethod", FooSubclass.class).invoke(receiver, new FooSubclass()); even though this works: receiver.testMethod(new FooSubclass()); How do I resolve this? If the method call is hard-coded there's no issue - the compiler just uses the overloading algorithm to pick the best applicable method to use. It doesn't work with reflection, though, which is what I need. Thanks in advance!

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• Aborting $.post() / responsive search results

  - by Emphram Stavanger

  I have the following kludgey code; HTML <input type="search" id="search_box" /> <div id="search_results"></div> JS var search_timeout, search_xhr; $("#search_box").bind("textchange", function(){ clearTimeout(search_timeout); search_xhr.abort(); search_term = $(this).val(); search_results = $("#search_results"); if(search_term == "") { if(search_results.is(":visible")) search_results.stop().hide("blind", 200); } else { if(search_results.is(":hidden")) search_results.stop().show("blind", 200); } search_timeout = setTimeout(function () { search_xhr = $.post("search.php", { q: search_term }, function(data){ search_results.html(data); }); }, 100); }); (uses the textchange plugin by Zurb) The problem I had with my original more simple code was that it was horribly unresponsive. Results would appear seconds later, especially when typed slower, or when Backspace was used, etc. I made all this, and the situation isn't much better. Requests pile up. My original intention is to use .abort() to cancel out whatever previous request is still running as the textchange event is fired again (as per 446594). This doesn't work, as I get repeated errors like this in console; Uncaught TypeError: Cannot call method 'abort' of undefined How can I make .abort() work in my case? Furthermore, is this approach the best way to fetch 'realtime' search results? Much like Facebook's search bar, which gives results as the user types, and seems to be very quick on its feet.

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• 'table' undeclared (first use this in a function)

  - by user2318083

  So I'm not sure why this isn't working, I'm creating a new table and setting it to the variable 'table' Is there something I'm doing wrong? This is the error I get when trying to run it: src/simpleshell.c:19:3: error: ‘table’ undeclared (first use in this function) src/simpleshell.c:19:3: note: each undeclared identifier is reported only once for each function it appears in My code is as follows: #include "parser.h" #include "hash_table.h" #include "variables.h" #include "shell.h" #include <stdio.h> int main(void) { char input[MAXINPUTLINE]; table = Table_create(); signal_c_init(); printf("\nhlsh$ "); while(fgets(input, sizeof(input), stdin)){ stripcrlf(input); parse(input); printf("\nhlsh$ "); } Table_free(table); return 0; } Then this is my create a table in the hash_table file: struct Table *Table_create(void){ struct Table *t; t = (struct Table*)calloc(1, sizeof(struct Table)); return t; } From the hash_table.c: #include "hash_table.h" #include "parser.h" #include "shell.h" #include "variables.h" #include <stdio.h> #include <sys/resource.h> #include <sys/wait.h> #include <sys/types.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <pwd.h> #include <fcntl.h> #include <limits.h> #include <signal.h> struct Table *table; unsigned int hash(const char *x){ int i; unsigned int h = 0U; for (i=0; x[i]!='\0'; i++){ h = h * 65599 + (unsigned char)x[i]; } return h % 1024; }

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• Add Your Gmail Account to Outlook 2010 Using IMAP

  - by Mysticgeek

  If you’re upgrading from Outlook 2003 to 2010, you might want to use IMAP with your Gmail account to synchronize mail across multiple machines. Using our guide, you will be able to start using it in no time. Enable IMAP in Gmail First log into your Gmail account and open the Settings panel. Click on the Forwarding and POP/IMAP tab and verify IMAP is enabled and save changes. Next open Outlook 2010, click on the File tab to access the Backstage view. Click on Account Settings and Add and remove accounts or change existing connection settings. In the Account Settings window click on the New button. Enter in your name, email address, and password twice then click Next. Outlook will configure the email server settings, the amount of time it takes will vary. Provided everything goes correctly, the configuration will be successful and you can begin using your account. Manually Configure IMAP Settings If the above instructions don’t work, then we’ll need to manually configure the settings. Again, go into Auto Account Setup and select Manually configure server settings or additional server types and click Next.   Select Internet E-mail – Connect to POP or IMAP server to send and receive e-mail messages. Now we need to manually enter in our settings similar to the following. Under the Server Information section verify the following. Account Type: IMAP Incoming mail server: imap.gmail.com Outgoing mail server (SMTP): smtp.gmail.com Note: If you have a Google Apps account make sure to put the full email address ([email protected]) in the Your Name and User Name fields. Note: If you live outside of the US you might need to use imap.googlemail.com and smtp.googlemail.com Next, we need to click on the More Settings button… In the Internet E-mail Settings screen that pops up, click on the Outgoing Server tab, and check the box next to My outgoing server (SMTP) requires authentication. Also select the radio button next to Use same settings as my incoming mail server. In the same window click on the Advanced tab and verify the following. Incoming server: 993 Incoming server encrypted connection: SSL Outgoing server encrypted connection TLS Outgoing server: 587 Note: You will need to change the Outgoing server encrypted connection first, otherwise it will default back to port 25. Also, if TLS doesn’t work, we were able to successfully use Auto. Click OK when finished. Now we want to test the settings, before continuing on…it’s just easier that way incase something was entered incorrectly. To make sure the settings are tested, check the box Test Account Settings by clicking the Next button. If you’ve entered everything in correctly, both tasks will be completed successfully and you can close out of the window. and begin using your account via Outlook 2010. You’ll get a final congratulations message you can close out of… And begin using your account via Outlook 2010. Conclusion Using IMAP allows you to synchronize email across multiple machines and devices. The IMAP feature in Gmail is free to use, and this should get you started using it with Outlook 2010. If you’re still using 2007 or just upgraded to it, check out our guide on how to use Gmail IMAP in Outlook 2007. Similar Articles Productive Geek Tips Add Your Gmail To Windows Live MailForce Outlook 2007 to Download Complete IMAP ItemsUse Gmail IMAP in Microsoft Outlook 2007Prevent Outlook with Gmail IMAP from Showing Duplicate Tasks in the To-Do BarSetting up Gmail IMAP Support for Windows Vista Mail TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips VMware Workstation 7 Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Cool Looking Skins for Windows Media Player 12 Move the Mouse Pointer With Your Face Movement Using eViacam Boot Windows Faster With Boot Performance Diagnostics Create Ringtones For Your Android Phone With RingDroid Enhance Your Laptop’s Battery Life With These Tips Easily Search Food Recipes With Recipe Chimp

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• Configuring UCM cache to check for external Content Server changes

  - by Martin Deh

  Recently, I was involved in a customer scenario where they were modifying the Content Server's contributor data files directly through Content Server.  This operation of course is completely supported.  However, since the contributor data file was modified through the "backdoor", a running WebCenter Spaces page, which also used the same data file, would not get the updates immediately.  This was due to two reasons.  The first reason is that the Spaces page was using Content Presenter to display the contents of the data file. The second reason is that the Spaces application was using the "cached" version of the data file.  Fortunately, there is a way to configure cache so backdoor changes can be picked up more quickly and automatically. First a brief overview of Content Presenter.  The Content Presenter task flow enables WebCenter Spaces users with Page-Edit permissions to precisely customize the selection and presentation of content in a WebCenter Spaces application.  With Content Presenter, you can select a single item of content, contents under a folder, a list of items, or query for content, and then select a Content Presenter based template to render the content on a page in a Spaces application.  In addition to displaying the folders and the files in a Content Server, Content Presenter integrates with Oracle Site Studio to allow you to create, access, edit, and display Site Studio contributor data files (Content Server Document) in either a Site Studio region template or in a custom Content Presenter display template.  More information about creating Content Presenter Display Template can be found in the OFM Developers Guide for WebCenter Portal. The easiest way to configure the cache is to modify the WebCenter Spaces Content Server service connection setting through Enterprise Manager.  From here, under the Cache Details, there is a section to set the Cache Invalidation Interval.  Basically, this enables the cache to be monitored by the cache "sweeper" utility.  The cache sweeper queries for changes in the Content Server, and then "marks" the object in cache as "dirty".  This causes the application in turn to get a new copy of the document from the Content Server that replaces the cached version.  By default the initial value for the Cache Invalidation Interval is set to 0 (minutes).  This basically means that the sweeper is OFF.  To turn the sweeper ON, just set a value (in minutes).  The mininal value that can be set is 2 (minutes): Just a note.  In some instances, once the value of the Cache Invalidation Interval has been set (and saved) in the Enterprise Manager UI, it becomes "sticky" and the interval value cannot be set back to 0.  The good news is that this value can also be updated throught a WLST command.   The WLST command to run is as follows: setJCRContentServerConnection(appName, name, [socketType, url, serverHost, serverPort, keystoreLocation, keystorePassword, privateKeyAlias, privateKeyPassword, webContextRoot, clientSecurityPolicy, cacheInvalidationInterval, binaryCacheMaxEntrySize, adminUsername, adminPassword, extAppId, timeout, isPrimary, server, applicationVersion]) One way to get the required information for executing the command is to use the listJCRContentServerConnections('webcenter',verbose=true) command.  For example, this is the sample output from the execution: ------------------ UCM ------------------ Connection Name: UCM Connection Type: JCR External Appliction ID: Timeout: (not set) CIS Socket Type: socket CIS Server Hostname: webcenter.oracle.local CIS Server Port: 4444 CIS Keystore Location: CIS Private Key Alias: CIS Web URL: Web Server Context Root: /cs Client Security Policy: Admin User Name: sysadmin Cache Invalidation Interval: 2 Binary Cache Maximum Entry Size: 1024 The Documents primary connection is "UCM" From this information, the completed  setJCRContentServerConnection would be: setJCRContentServerConnection(appName='webcenter',name='UCM', socketType='socket', serverHost='webcenter.oracle.local', serverPort='4444', webContextRoot='/cs', cacheInvalidationInterval='0', binaryCacheMaxEntrySize='1024',adminUsername='sysadmin',isPrimary=1) Note: The Spaces managed server must be restarted for the change to take effect. More information about using WLST for WebCenter can be found here. Once the sweeper is turned ON, only cache objects that have been changed will be invalidated.  To test this out, I will go through a simple scenario.  The first thing to do is configure the Content Server so it can monitor and report on events.  Log into the Content Server console application, and under the Administration menu item, select System Audit Information.  Note: If your console is using the left menu display option, the Administration link will be located there. Under the Tracing Sections Information, add in only "system" and "requestaudit" in the Active Sections.  Check Full Verbose Tracing, check Save, then click the Update button.  Once this is done, select the View Server Output menu option.  This will change the browser view to display the log.  This is all that is needed to configure the Content Server. For example, the following is the View Server Output with the cache invalidation interval set to 2(minutes) Note the time stamp: requestaudit/6 08.30 09:52:26.001  IdcServer-68    GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.016933999955654144(secs) requestaudit/6 08.30 09:52:26.010  IdcServer-69    GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.006134999915957451(secs) requestaudit/6 08.30 09:52:26.014  IdcServer-70    GET_DOCUMENT_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.004271999932825565(secs) ... other trace info ... requestaudit/6 08.30 09:54:26.002  IdcServer-71    GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.020323999226093292(secs) requestaudit/6 08.30 09:54:26.011  IdcServer-72    GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.017928000539541245(secs) requestaudit/6 08.30 09:54:26.017  IdcServer-73    GET_DOCUMENT_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.010185999795794487(secs) Now that the tracing logs are reporting correctly, the next step is set up the Spaces app to test the sweeper. I will use 2 different pages that will use Content Presenter task flows.  Each task flow will use a different custom Content Presenter display template, and will be assign 2 different contributor data files (document that will be in the cache).  The pages at run time appear as follows: Initially, when the Space pages containing the content is loaded in the browser for the first time, you can see the tracing information in the Content Server output viewer. requestaudit/6 08.30 11:51:12.030 IdcServer-129 CLEAR_SERVER_OUTPUT [dUser=weblogic] 0.029171999543905258(secs) requestaudit/6 08.30 11:51:12.101 IdcServer-130 GET_SERVER_OUTPUT [dUser=weblogic] 0.025721000507473946(secs) requestaudit/6 08.30 11:51:26.592 IdcServer-131 VCR_GET_DOCUMENT_BY_NAME [dID=919][dDocName=DF_UCMCACHETESTER][dDocTitle=DF_UCMCacheTester][dUser=weblogic][RevisionSelectionMethod=LatestReleased][IsJava=1] 0.21525299549102783(secs) requestaudit/6 08.30 11:51:27.117 IdcServer-132 VCR_GET_CONTENT_TYPES [dUser=sysadmin][IsJava=1] 0.5059549808502197(secs) requestaudit/6 08.30 11:51:27.146 IdcServer-133 VCR_GET_CONTENT_TYPE [dUser=sysadmin][IsJava=1] 0.03360399976372719(secs) requestaudit/6 08.30 11:51:27.169 IdcServer-134 VCR_GET_CONTENT_TYPE [dUser=sysadmin][IsJava=1] 0.008806000463664532(secs) requestaudit/6 08.30 11:51:27.204 IdcServer-135 VCR_GET_CONTENT_TYPE [dUser=sysadmin][IsJava=1] 0.013265999965369701(secs) requestaudit/6 08.30 11:51:27.384 IdcServer-136 VCR_GET_CONTENT_TYPE [dUser=sysadmin][IsJava=1] 0.18119299411773682(secs) requestaudit/6 08.30 11:51:27.533 IdcServer-137 VCR_GET_CONTENT_TYPE [dUser=sysadmin][IsJava=1] 0.1519480049610138(secs) requestaudit/6 08.30 11:51:27.634 IdcServer-138 VCR_GET_CONTENT_TYPE [dUser=sysadmin][IsJava=1] 0.10827399790287018(secs) requestaudit/6 08.30 11:51:27.687 IdcServer-139 VCR_GET_CONTENT_TYPE [dUser=sysadmin][IsJava=1] 0.059702999889850616(secs) requestaudit/6 08.30 11:51:28.271 IdcServer-140 GET_USER_PERMISSIONS [dUser=weblogic][IsJava=1] 0.006703000050038099(secs) requestaudit/6 08.30 11:51:28.285 IdcServer-141 GET_ENVIRONMENT [dUser=sysadmin][IsJava=1] 0.010893999598920345(secs) requestaudit/6 08.30 11:51:30.433 IdcServer-142 GET_SERVER_OUTPUT [dUser=weblogic] 0.017318999394774437(secs) requestaudit/6 08.30 11:51:41.837 IdcServer-143 VCR_GET_DOCUMENT_BY_NAME [dID=508][dDocName=113_ES][dDocTitle=Landing Home][dUser=weblogic][RevisionSelectionMethod=LatestReleased][IsJava=1] 0.15937699377536774(secs) requestaudit/6 08.30 11:51:42.781 IdcServer-144 GET_FILE [dID=326][dDocName=WEBCENTERORACL000315][dDocTitle=Duke][dUser=anonymous][RevisionSelectionMethod=LatestReleased][dSecurityGroup=Public][xCollectionID=0] 0.16288499534130096(secs) The highlighted sections show where the 2 data files DF_UCMCACHETESTER (P1 page) and 113_ES (P2 page) were called by the (Spaces) VCR connection to the Content Server. The most important line to notice is the VCR_GET_DOCUMENT_BY_NAME invocation.  On subsequent refreshes of these 2 pages, you will notice (after you refresh the Content Server's View Server Output) that there are no further traces of the same VCR_GET_DOCUMENT_BY_NAME invocations.  This is because the pages are getting the documents from the cache. The next step is to go through the "backdoor" and change one of the documents through the Content Server console.  This operation can be done by first locating the data file document, and from the Content Information page, select Edit Data File menu option.   This invokes the Site Studio Contributor, where the modifications can be made. Refreshing the Content Server View Server Output, the tracing displays the operations perform on the document.  requestaudit/6 08.30 11:56:59.972 IdcServer-255 SS_CHECKOUT_BY_NAME [dID=922][dDocName=DF_UCMCACHETESTER][dUser=weblogic][dSecurityGroup=Public] 0.05558200180530548(secs) requestaudit/6 08.30 11:57:00.065 IdcServer-256 SS_GET_CONTRIBUTOR_CONFIG [dID=922][dDocName=DF_UCMCACHETESTER][dDocTitle=DF_UCMCacheTester][dUser=weblogic][dSecurityGroup=Public][xCollectionID=0] 0.08632399886846542(secs) requestaudit/6 08.30 11:57:00.470 IdcServer-259 DOC_INFO_BY_NAME [dID=922][dDocName=DF_UCMCACHETESTER][dDocTitle=DF_UCMCacheTester][dUser=weblogic][dSecurityGroup=Public][xCollectionID=0] 0.02268899977207184(secs) requestaudit/6 08.30 11:57:10.177 IdcServer-264 GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.007652000058442354(secs) requestaudit/6 08.30 11:57:10.181 IdcServer-263 GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.01868399977684021(secs) requestaudit/6 08.30 11:57:10.187 IdcServer-265 GET_DOCUMENT_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.009367000311613083(secs) (internal)/6 08.30 11:57:26.118 IdcServer-266 File to be removed: /oracle/app/admin/domains/webcenter/ucm/cs/vault/~temp/703253295.xml (internal)/6 08.30 11:57:26.121 IdcServer-266 File to be removed: /oracle/app/admin/domains/webcenter/ucm/cs/vault/~temp/703253295.xml requestaudit/6 08.30 11:57:26.122 IdcServer-266 SS_SET_ELEMENT_DATA [dID=923][dDocName=DF_UCMCACHETESTER][dDocTitle=DF_UCMCacheTester][dUser=weblogic][dSecurityGroup=Public][xCollectionID=0][StatusCode=0][StatusMessage=Successfully checked in content item 'DF_UCMCACHETESTER'.] 0.3765290081501007(secs) requestaudit/6 08.30 11:57:30.710 IdcServer-267 DOC_INFO_BY_NAME [dID=923][dDocName=DF_UCMCACHETESTER][dDocTitle=DF_UCMCacheTester][dUser=weblogic][dSecurityGroup=Public][xCollectionID=0] 0.07942699640989304(secs) requestaudit/6 08.30 11:57:30.733 IdcServer-268 SS_GET_CONTRIBUTOR_STRINGS [dUser=weblogic] 0.0044570001773536205(secs) After a few moments and refreshing the P1 page, the updates has been applied. Note: The refresh time may very, since the Cache Invalidation Interval (set to 2 minutes) is not determined by when changes happened.  The sweeper just runs every 2 minutes. Refreshing the Content Server View Server Output, the tracing displays the important information. requestaudit/6 08.30 11:59:10.171 IdcServer-270 GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.00952600035816431(secs) requestaudit/6 08.30 11:59:10.179 IdcServer-271 GET_FOLDER_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.011118999682366848(secs) requestaudit/6 08.30 11:59:10.182 IdcServer-272 GET_DOCUMENT_HISTORY_REPORT [dUser=sysadmin][IsJava=1] 0.007447000127285719(secs) requestaudit/6 08.30 11:59:16.885 IdcServer-273 VCR_GET_DOCUMENT_BY_NAME [dID=923][dDocName=DF_UCMCACHETESTER][dDocTitle=DF_UCMCacheTester][dUser=weblogic][RevisionSelectionMethod=LatestReleased][IsJava=1] 0.0786449983716011(secs) After the specifed interval time the sweeper is invoked, which is noted by the GET_ ... calls.  Since the history has noted the change, the next call is to the VCR_GET_DOCUMENT_BY_NAME to retrieve the new version of the (modifed) data file.  Navigating back to the P2 page, and viewing the server output, there are no further VCR_GET_DOCUMENT_BY_NAME to retrieve the data file.  This simply means that this data file was just retrieved from the cache.   Upon further review of the server output, we can see that there was only 1 request for the VCR_GET_DOCUMENT_BY_NAME: requestaudit/6 08.30 12:08:00.021 Audit Request Monitor Request Audit Report over the last 120 Seconds for server webcenteroraclelocal16200****  requestaudit/6 08.30 12:08:00.021 Audit Request Monitor -Num Requests 8 Errors 0 Reqs/sec. 0.06666944175958633 Avg. Latency (secs) 0.02762500010430813 Max Thread Count 2  requestaudit/6 08.30 12:08:00.021 Audit Request Monitor 1 Service VCR_GET_DOCUMENT_BY_NAME Total Elapsed Time (secs) 0.09200000017881393 Num requests 1 Num errors 0 Avg. Latency (secs) 0.09200000017881393  requestaudit/6 08.30 12:08:00.021 Audit Request Monitor 2 Service GET_PERSONALIZED_JAVASCRIPT Total Elapsed Time (secs) 0.054999999701976776 Num requests 1 Num errors 0 Avg. Latency (secs) 0.054999999701976776  requestaudit/6 08.30 12:08:00.021 Audit Request Monitor 3 Service GET_FOLDER_HISTORY_REPORT Total Elapsed Time (secs) 0.028999999165534973 Num requests 2 Num errors 0 Avg. Latency (secs) 0.014499999582767487  requestaudit/6 08.30 12:08:00.021 Audit Request Monitor 4 Service GET_SERVER_OUTPUT Total Elapsed Time (secs) 0.017999999225139618 Num requests 1 Num errors 0 Avg. Latency (secs) 0.017999999225139618  requestaudit/6 08.30 12:08:00.021 Audit Request Monitor 5 Service GET_FILE Total Elapsed Time (secs) 0.013000000268220901 Num requests 1 Num errors 0 Avg. Latency (secs) 0.013000000268220901  requestaudit/6 08.30 12:08:00.021 Audit Request Monitor ****End Audit Report*****  

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• SQLAuthority News – Speaking Sessions at TechEd India – 3 Sessions – 1 Panel Discussion

  - by pinaldave

  Microsoft Tech-Ed India 2010 is considered as the major Technology event of the year for various IT professionals and developers. This event will feature a comprehensive forum in order   to learn, connect, explore, and evolve the current technologies we have today. I would recommend this event to you since here you will learn about today’s cutting-edge trends, thereby enhancing your work profile and getting ahead of the rest. But, the most important benefit of all might be the networking opportunity that that you can attain by attending the forum. You can build personal connections with various Microsoft experts and peers that will last even far beyond this event! It also feels good to let you know that I will be speaking at this year’s event! So, here are the sessions that await you in this mega-forum. Session 1: True Lies of SQL Server – SQL Myth Buster Date: April 12, 2010  Time: 11:15pm – 11:45pm In this 30-minute demo session, I am going to briefly demonstrate few SQL Server Myth and their resolution backing up with some demo. This demo session is a must-attend for all developers and administrators who would come to the event. This is going to be a very quick yet  fun session. Session 2: Master Data Services in Microsoft SQL Server 2008 R2 Date: April 12, 2010  Time: 2:30pm-3:30pm SQL Server Master Data Services will ship with SQL Server 2008 R2 and will improve Microsoft’s platform appeal. This session provides an in depth demonstration of MDS features and highlights important usage scenarios. Master Data Services enables consistent decision making by allowing you to create, manage and propagate changes from single master view of your business entities. Also with MDS – Master Data-hub which is the vital component helps ensure reporting consistency across systems and deliver faster more accurate results across the enterprise. We will talk about establishing the basis for a centralized approach to defining, deploying, and managing master data in the enterprise. Session 3: Developing with SQL Server Spatial and Deep Dive into Spatial Indexing Date: April 14, 2010 Time: 5:00pm-6:00pm Microsoft SQL Server 2008 delivers new spatial data types that enable you to consume, use, and extend location-based data through spatial-enabled applications. Attend this session to learn how to use spatial functionality in next version of SQL Server to build and optimize spatial queries. This session outlines the new geography data type to store geodetic spatial data and perform operations on it, use the new geometry data type to store planar spatial data and perform operations on it, take advantage of new spatial indexes for high performance queries, use the new spatial results tab to quickly and easily view spatial query results directly from within Management Studio, extend spatial data capabilities by building or integrating location-enabled applications through support for spatial standards and specifications and much more. Panel Discussion: Harness the power of Web – SEO and Technical Blogging Date: April 12, 2010 Time: 5:00pm-6:00pm Here you will learn lots of tricks and tips about SEO and Technical Blogging from various Industry Technical Blogging Experts. This event will surely be one of the most important Tech conventions of 2010. TechEd is going to be a very busy time for Tech developers and enthusiasts, since every evening there will be a fun session to attend. If you are interested in any of the above topics for every session, I suggest that you visit each of them as you will learn so many things about the topic to be discussed. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: MVP, Pinal Dave, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority Author Visit, SQLAuthority News, T SQL, Technology Tagged: TechEd, TechEdIn

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