Search Results

Search found 5425 results on 217 pages for 'coherence book'.

Page 61/217 | < Previous Page | 57 58 59 60 61 62 63 64 65 66 67 68  | Next Page >

  • How to cache queries in Rails across multiple requests

    - by m.u.sheikh
    I want to cache query results so that the same results are fetched "for more than one request" till i invalidate the cache. For instance, I want to render a sidebar which has all the pages of a book, much like the index of a book. As i want to show it on every page of the book, I have to load it on every request. I can cache the rendered sidebar index using action caching, but i also want to actually cache the the query results which are used to generate the html for the sidebar. Does Rails provide a way to do it? How can i do it?

    Read the article

  • C++ Primer (Stanley Lipmann) or The C++ programming language (special edition)

    - by Kim
    I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special Edition) but find it extremely difficult esp. some section which i don't have exposure such as Recursive Descent Parser (chapter 6). In terms of the language i don't foresee i have problem but i have problem as mentioned cos' those topic are usually covered in a Master Degree program such as construction of compiler. I just bought a book called C++ primer (Stanley Lipmann) which i heard it is a very good book for C++. Only setback is it's of course no match with the amount of information from the original C++ creator. Please advice. Thanks.

    Read the article

  • Books recommendation to learn about java networking

    - by elec
    In order to cover for my (glaring) lack of knowledge in the basics of networking, I'm looking for a book which would ideally cover: - 1 or 2 chapters on the transport layer: tcp, udp... - 1 or 2 chapters on the application layer: http, dns... - rest of the book would be devoted to pratical way of sending data across the wire using Java-related technologies. This would involve discussions about existing products (eg. hessian, protobuf, thrift, tibco...) , performances comparisons, case studies...etc.. Does such a book exist ?

    Read the article

  • Initialization of std::vector<unsigned int> with a list of consecutive unsigned integers

    - by Thomas
    I want to use a special method to initialize a std::vector<unsigned int> which is described in a C++ book I use as a reference (the German book 'Der C++ Programmer' by Ulrich Breymann, in case that matters). In that book is a section on sequence types of the STL, referring in particular to list, vector and deque. In this section he writes that there are two special constructors of such sequence types, namely, if Xrefers to such a type, X(n, t) // creates a sequence with n copies of t X(i, j) // creates a sequence from the elements of the interval [i, j) I want to use the second one for an interval of unsigned int, that is std::vector<unsigned int> l(1U, 10U); to get a list initialized with {1,2,...,9}. What I get, however, is a vector with one unsigned int with value 10 :-| Does the second variant exist, and if yes, how do I force that it is called?

    Read the article

  • How to query a date in HQL (Hibernate) with Joda Time?

    - by fabien7474
    I am sure that someone familiar with HQL (I am myself a newbie) can easily answer this question. In my Grails application, I have the following domain class. class Book { org.joda.time.DateTime releaseDate //I use the PersistentDateTime for persisting via Hibernate (that use a DATETIME type for MySQL DB) } In my HQL query, I want to retrieve books whose release date is included in range date1..date2 For instance I tried: DateTime date1, date2 ... def queryStr = "select * from Book as b where b.releaseDate > $date1 and b.releaseDate < $date2" def res = Book.executeQuery(queryStr) But I got the exception ...caused by: org.springframework.orm.hibernate3.HibernateQueryException: unexpected token: The error token points to date format (for instance 2009-11-27T21:57:18.010+01:00 or Fri Nov 27 22:01:20 CET 2009) I have also tried to convert date1 into a Date class without success So what is the correct HQL code ? Should I convert to a specific format (which one?) using the patternForStyle method or is there another -cleaner- way to do it? Thanks, Fabien.

    Read the article

  • Apache Axis2 tried books

    - by josh
    I am looking to get my hands wet in Java Web Services. Apache CXF and Axis2 seem to be in demand a lot. I googled a bit for finding a good Axis2 book that has lot of working examples. some books like Quick Start Apache Axis 2 seem to have bad reviews on Amazon and titles like Web Services with Apache CXF and Axis2 seem to lack working examples. I want to get opinion from people who currently work with Axis2 and have read a book or two on the subject. Which is a good book for an Axis2 n00b.

    Read the article

  • Help with these warnings. [inheritance].

    - by sil3nt
    Hello there. I have a set of code, which mimics a basic library cataloging system. There is a base class named items, in which the the general id,title and year variables are defined and 3 other derived classes (DVD,Book and CD). Base [Items] Derived [DVD,Book,CD]. The programs runs, however I get the following warnings, I'm not sure how to fix these. "C:\Program Files\gcc\bin/g++" -Os -mconsole -g -Wall -Wshadow -fno-common mainA4.cpp -o mainA4.exe In file included from mainA4.cpp:5: a4.h: In constructor `DVD::DVD(int, std::string, int, std::string)': a4.h:28: warning: `DVD::director' will be initialized after a4.h:32: warning: base `Items' a4.h:32: warning: when initialized here a4.h: In constructor `Book::Book(int, std::string, int, std::string, int)': a4.h:48: warning: `Book::numPages' will be initialized after a4.h:52: warning: base `Items' a4.h:52: warning: when initialized here a4.h: In constructor `CD::CD(int, std::string, int, std::string, int)': a4.h:66: warning: `CD::numSongs' will be initialized after a4.h:70: warning: base `Items' a4.h:70: warning: when initialized here Exit code: 0

    Read the article

  • How to study programming with C language

    - by gurugio
    I am using only C for 5 years. So I am sure that I know C grammer, but I have no idea how to advance programming skills. There are many books for modern languages (such as C++, Java) to study programming skills like the refactoring or pattern, software architecture. But no book is written with C language. The book author say that his/her book is not language-dependent, but I don't think so. How can I advance my programming skills? I have to study modern language and read the books? Are there books about software design or programming skill written with C?

    Read the article

  • Setting marker title in Google Maps API 3 using jQuery

    - by bateman_ap
    Hi, I am having a couple of problems with Google Maps and jQuery. Wondered if anyone can help with the smaller of the two problems and hopefully it will help me to fixing the bigger one. I am using the below code to populate a google map, basically it uses generated HTML to populate the maps in the form: <div class="item mapSearch" id="map52.48228_-1.9026:800"> <div class="box-prise"><p>(0.62km away)</p><div class="btn-book-now"> <a href="/venue/800.htm">BOOK NOW</a> </div> </div><img src="http://media.toptable.com/images/thumb/13152.jpg" alt="Metro Bar and Grill" width="60" height="60" /> <div class="info"> <h2><a href="/venue/800.htm">Metro Bar and Grill</a></h2> <p class="address">73 Cornwall Street, Birmingham, B3 2DF</p><strong class="proposal">2 courses £14.50</strong> <dl> <dt>Diner Rating: </dt> <dd>7.8</dd> </dl></div></div> <div class="item mapSearch" id="map52.4754_-1.8999:3195"> <div class="box-prise"><p>(0.97km away)</p><div class="btn-book-now"> <a href="/venue/3195.htm">BOOK NOW</a> </div> </div><img src="http://media.toptable.com/images/thumb/34998.jpg" alt="Filini Restaurant - Birmingham" width="60" height="60" /> <div class="info"> <h2><a href="/venue/3195.htm">Filini Restaurant - Birmingham</a></h2> <p class="address">Radisson Blu Hotel, 12 Holloway Circus, Queensway, Birmingham, B1 1BT</p><strong class="proposal">2 for 1: main courses </strong> <dl> <dt>Diner Rating: </dt> <dd>7.8</dd> </dl></div></div> <div class="item mapSearch" id="map52.47775_-1.90619:10657"> <div class="box-prise"><p>(1.05km away)</p><div class="btn-book-now"> <a href="/venue/10657.htm">BOOK NOW</a> </div> </div><img src="http://media.toptable.com/images/thumb/34963.jpg" alt="B1 " width="60" height="60" /> <div class="info"> <h2><a href="/venue/10657.htm">B1 </a></h2> <p class="address">Central Square , Birmingham, B1 1HH</p><strong class="proposal">25% off food</strong> <dl> <dt>Diner Rating: </dt> <dd>7.9</dd> </dl></div></div> The JavaScript loops though all the divs with class mapSearch and uses this to plot markers using the div ID to get the lat/lon and ID of the venue: var locations = $(".mapSearch"); for (var i=0;i<locations.length;i++) { var id = locations[i].id; if (id) { var jsLonLat = id.substring(3).split(":")[0]; var jsId = id.substring(3).split(":")[1]; var jsLat = jsLonLat.split("_")[0]; var jsLon = jsLonLat.split("_")[1]; var jsName = $("h2").text(); var jsAddress = $("p.address").text(); var latlng = new google.maps.LatLng(jsLat,jsLon); var marker = new google.maps.Marker({ position: latlng, map:map, icon: greenRestaurantImage, title: jsName }); google.maps.event.addListener(marker, 'click', function() { //Check to see if info window already exists if (!infowindow) { //if doesn't exist then create a empty InfoWindow object infowindow = new google.maps.InfoWindow(); } //Set the content of InfoWindow infowindow.setContent(jsAddress); //Tie the InfoWindow to the market infowindow.open(map,marker); }); bounds.extend(latlng); map.fitBounds(bounds); } } The markers all plot OK on the map, however I am having probs with the infoWindow bit. I want to display info about each venue when clicked, however using my code above it just puts all info in one box when clicked, not individually. Hoping it is a simple fix! Hoping once I fix this I can work out a way to get the info window displaying if I hover over the div in the html.

    Read the article

  • Error messages for model validation using data annotations

    - by oneBelizean
    Given the follow classes: using System.ComponentModel.DataAnnotations; public class Book{ public Contact PrimaryContact{get; set;} public Contact SecondaryContact{get; set;} [Required(ErrorMessage="Book name is required")] public string Name{get; set;} } public class Contact{ [Required(ErrorMessage="Name is required")] public string Name{get; set;} } Is there a clean way I can give a distinct error message for each instance of Contact in Book using DataAnnotations? For example, if the name was missing from the PrimaryContact instance the error would read "primary contact name is required". My current solution is to create a validation service that checks the model state for field errors then remove said errors and add them back using the specific language I'd like.

    Read the article

  • Where I can find an engine like OFPS Open Feedback Publishing

    - by microspino
    I'd like to write a little book on personal topics together with two friends of mine, remotely located. Do you know of any FOSS content publishing system like the one from O'Reilly (OPFS)? I saw the one that powers the django book but It seems that the code It's not released yet. I accept any kind of backend technology for this project. I'd like to: edit the book on the web and let my friend do the same after authentication. anyone of us could comment other's entries.

    Read the article

  • Need help with a conditional SELECT statement

    - by Ethan
    I've got a stored procedure with a select statement, like this: `SELECT author_ID, author_name, author_bio FROM Authors WHERE author_ID in (SELECT author_ID from Books) ` This limits results to authors who have book records. This is the Books table: Books book_ID INT author_ID INT book_title NVARCHAR featured_book BIT What I want to do is conditionally select the ID of the featured book by each author as part of the select statement above, and if none of the books for a given author are featured, select the ID of the first (top 1) book by the author from the books table. How do I approach this?

    Read the article

  • alternative to strdup

    - by Alexander
    I am using strdup here to copy the value of the parameter name into nm in the constructor... is there an alternative of achieving the same result without using strdup and without using the C++ STL library and using the keyword new instead? Book::Book(const char *name, int thickness, int weight):nm(NULL), thck(thickness), wght(weight){ if(name) nm = strdup(name); } class Book { private: char* nm; .......... ............ .......... ........... };

    Read the article

  • MySQL calling in Username to show instead of ID!

    - by Jess
    I have a users table, books table and authors table. An author can have many books, while a user can also have many books. (This is how my DB is currently setup). As I'm pretty new to So far my setup is like bookview.php?book_id=23 from accessing authors page, then seeing all books for the author. The single book's details are all displayed on this new page...I can get the output to display the user ID associated with the book, but not the user name, and this also applies for the author's name, I can the author ID to display, but not the name, so somewhere in the query below I am not calling in the correct values: SELECT users.user_id, authors.author_id, books.book_id, books.bookname, books.bookprice, books.bookplot FROM books INNER JOIN authors on books.book_id = authors.book_id INNER JOIN users ON books.book_id = users.user_id WHERE books.book_id=" . $book_id; Could someone help me correct this so I can display the author name and user name both associated with the book! Thanks for the help :)

    Read the article

  • How can I use Amazon's API in PHP to search for books?

    - by TerranRich
    I'm working on a Facebook app for book sharing, reviewing, and recommendations. I've scoured the web, searched Google using every search phrase I could think of, but I could not find any tutorials on how to access the Amazon.com API for book information. I signed up for an AWS account, but even the tutorials on their website didn't help me one bit. They're all geared toward using cloud computing for file storage and processing, but that's not what I want. I just want to access their API to search info on books. Kind of like how http://openlibrary.org/ does it, where it's a simple URL call to get information on a book (but their databases aren't nearly as populated as Amazon's). Why is it so damned hard to find the information I need on Amazon's AWS site? If anybody could help, I would greatly appreciate it.

    Read the article

  • Captcha Alternative, how secure?

    - by aslum
    I do the web page for my local library, and I was thinking it might be kind of appealing to have a "custom" captcha based on book covers. So serve up one of several dozen book covers, and have the patron filling out the form type the book title to prove they're human. Assuming I stripped the title/author info from the image and filename, would that be enough? Would the fact that it was a unique system on a fairly small website be enough to make it effective? Just how tricky are the spam bots these days? Would having the image name be the ISBN # be too obvious?

    Read the article

  • Oauth : Get user's permissions without any redirection to a server.

    - by Anthony
    Hello, in my website, I want to add a "invite friend of my contacts book" functionnality. I would like that the user fills the loggin form in my website. Then the website contacts Google Mail, Yahoo Mail, Live Mail and retrieves the contact list. In the Oauth protocole supported by Google and Yahoo, the user is redirected to a Google or Yahoo page (like Facebook) in order to permit the user to give permissions. But I saw two websites which didn't any redirections to get the contacts book (LinkedIn for a Google mail account and Theauteurs with a live mail.) Do you know how I can get a contacts book without redirect the user to Google, Microsoft or Yahoo website.

    Read the article

  • Stop debug stalling in eclipse

    - by Lumpy
    I recently installed eclipse on my Mac pro. I had previously been using eclipse on my mac book. When I run an app engine project on the mac book, it works fine. When I run it on my mac pro it brings me into the debugger where I have to click resume a few times but then everything works well again. I went looking into the debug settings and many other settings pages but everything looks the same. I don't remember making any changes to my mac book settings. The code is an exact copy on both machines. What am I missing here? What settings do I need to change.

    Read the article

  • What's the Difference Between These Two Ruby Class Initialaztion Definitions?

    - by michaelmichael
    I'm working through a book on Ruby, and the author used a slightly different form for writing a class initialization definition than he has in previous sections of the book. It looks like this: class Ticket attr_accessor :venue, :date def initialize(venue, date) self.venue = venue self.date = date end end In previous sections of the book, it would've been defined like this: class Ticket attr_accessor :venue, :date def initialize(venue, date) @venue = venue @date = date end end Is there any functional difference between using the setter method, as in the first example vs. using the instance variable in the second? They both seem to work. Even mixing them up seems to work: class Ticket attr_accessor :venue, :date def initialize(venue, date) @venue = venue self.date = date end end

    Read the article

  • What's the Difference Between These Two Ruby Class Initialization Definitions?

    - by michaelmichael
    I'm working through a book on Ruby, and the author used a slightly different form for writing a class initialization definition than he has in previous sections of the book. It looks like this: class Ticket attr_accessor :venue, :date def initialize(venue, date) self.venue = venue self.date = date end end In previous sections of the book, it would've been defined like this: class Ticket attr_accessor :venue, :date def initialize(venue, date) @venue = venue @date = date end end Is there any functional difference between using the setter method, as in the first example, vs. using the instance variable as in the second? They both seem to work. Even mixing them up works: class Ticket attr_accessor :venue, :date def initialize(venue, date) @venue = venue self.date = date end end

    Read the article

  • is there some lightweight tecnique for adding type safety to identifier properties?

    - by shoren
    After using C++ I got used to the concept of Identifier which can be used with a class for the type, provides type safety and has no runtime overhead (the actual size is the size of the primitive). I want to do something like that, so I will not make mistakes like: personDao.find(book.getId());//I want compilation to fail personDao.find(book.getOwnerId());//I want compilation to succeed Possible solutuions that I don't like: For every entity have an entity id class wrapping the id primitive. I don't like the code bloat. Create a generic Identifier class. Code like this will not compile: void foo(Identifier book); void foo(Identifier person); Does anyone know of a better way? Is there a library with a utility such as this? Is implementing this an overkill? And the best of all, can this be done in Java without the object overhead like in C++?

    Read the article

  • WPF Books in 2010

    - by notJim
    I'm looking to learn WPF, and I'd like to get a book to help in the process. Most of the popular questions on SO regarding actual books are from 2008, and I wanted to see if recommendations for books had changed at all. WPF Unleashed, which seems to be the most popular recommendation, was published in 2006, which is quite a while ago, with the lightening-quick pace that Microsoft has been following with .NET. Does this book still work? For some background, I'm a web developer (using MVC, so MVVM makes sense to me conceptually), looking to make the jump to desktop development. I did C# a while ago, but I'll be picking up a separate C# book to get up to speed on that. I am not interested in Silverlight. I am not necessarily interested in flashy UIs right now, as I'm working on business software but what I am interested in is good, clean, intuitive user interfaces.

    Read the article

  • Saving Excel Spreadsheet using Interop C#

    - by Wesley
    static void Main() { Application excelapp = new Application(); Workbook book = excelapp.Workbooks.Open(@"C:\HWYFAB.xlsx", 0, false, 5, "", "", false, XlPlatform.xlWindows , "", true, false, 0, true, false, false); Worksheet sheet = (Worksheet)book.Sheets[1]; Range cell = (Range)sheet.Cells[3, 2]; Console.WriteLine(cell.Text); cell.ClearContents(); book.Close(true, "HWYFAB.xlsx", false); excelapp.Quit(); } This program runs and exits as expected. It does print the correct value that's in cell B3 to the console. When closing it asks if I want to replace the existing file. I click yes. When I open the spreadsheet in Excel, the value is still in cell B3 despite the cell.ClearContents(). Any thoughts?

    Read the article

  • mysql_fetch_object on complex objects

    - by Arsenal
    Say for example I have the follwoing DB structure Table book id title ... Table Author id name ... Table BookAuthor id bookid authorid And in PHP I have the following object class Book { var $id; var $title; var $authors = array(); function Book() {} } class Author { var $id; var $name; function Author(){} } Now, would it be possible using mysql_fetch_object to retrieve the bookobject including the authors as an array of author objects? If it's possible I'm pretty sure you'll need the basic inner join query SELECT * FROM tblbook INNER JOIN tblbookauthor on ... (wel you get the point) Is it possible? thanks!

    Read the article

  • The Eclipse Executable Launcher Was Unable To Locate Its Companion Shared Library

    - by Caden Ratcliff
    I am a java beginner and am going through the book "Java In 24 Hours Sixth Edition" by Rogers Cadenhead. I am on chapter 24 "Creating an Android app". The book has told me to download Eclipse and Android SDK on my computer and to unzip the zip files they come in. I have put them both in the same parent file (C:\Documents and Settings\Administrator\My Documents\Downloads). Then the book tells me I can run Eclipse now and I get a message instead saying "The Eclipse Executable Launcher Was Unable To Locate Its Companion Shared Library". Is there a way to fix this? Do I just have to re-install SDK and Eclipse? I have downloaded SDK for windows 64-bit and I have windows 64-bit. Any info on how to fix this would be most appreciated.

    Read the article

< Previous Page | 57 58 59 60 61 62 63 64 65 66 67 68  | Next Page >