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  • If url exists Objective-c

    - by HiGuy Smith
    Hey, I have a program that needs to tell if an online image exists, but the only way that I've gotten this to work is by loading the image in a NSData pointer and checking if the pointer exists. - (BOOL)exists { NSString *filePath = @"http://couleeapps.hostei.com/BottomBox.png"; NSURL *url = [NSURL URLWithString:filePath]; NSData *imageData = [NSData dataWithContentsOfURL:url]; if (imageData) { return YES; } return NO; } This has worked for me, but my problem is that I have a very slow connection, and it takes forever to download the image. So my question is: is there a way to check if a image (say "http://couleeapps.hostei.com/BottomBox.png") is available without having to download it? Help is much appreciated HiGuy

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  • Design Patters in Rails

    - by Winston
    I remember, I have a GoF book back in college about design patterns which helped me a lot with my C and C++ programming, since my jump ship to Rails I was trying to use those design patterns I learned previously, Rails is a relatively new paradigm to me, plurals, verbs, REST, DRY.. Can you give me a recommended book for Rails that I can easily understand what I previously learned back in College. P.S. I suspect Matz knew about the GoF book, and applied it on Ruby... :-)

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  • read url in binary mode in java

    - by Andrew Zawok
    In java I need to read a binary file from a site and write it to a disk file. This example http://java.sun.com/docs/books/tutorial/networking/urls/readingURL.html could read webpages succesfully, but when I try to read a binary file from my localhost server and write it to a disk file the contents change, corrupting the binary file. Using fc I see that 0x90 is changed to 0x3F and other changes. How do I acess the binary files (read url and write to file) without java or anything else changing ANY characters, like doing any newline conversions or character conversions or anything else, simply reading input url and writing it out as a file.

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  • How to design shape class

    - by Tomek Tarczynski
    I want to design shape class. I need to distinguish several different shapes: -Point -Line -Triangle -Circle -Polygons The main purpose of this class is to calculate distance between two shapes. I've all methods for calculating those distances, but I want to have a single method that can be used, it should looks like this: float Distance(Shape a, Shape b) Simplest way to do it is to put a lot of if statements and then invoke proper method but this is deffinitely not OOP. How to design such class in OOP style?

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  • Add / remove a port number to/from a URL with REGEX in PHP

    - by SuperDuck
    Hello guys, I've searched but was unable to find an existing regex function. Has anybody done this before? I wish to add a port number, or remove a potantially existing one from a url in php. To use in some functions which translate a given url to the secure one, unsecure one, etc. Now I need a second SSL secured site on the server so I need to dynamically add a port number while converting http to https, and remove any port number while converting from https to http. Thanks, Duck

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  • Building URL or link in REST ASP.NET MVC

    - by AWC
    I want to build a URL at runtime when a resource is render to either XML or JSON. I can do this easily when the view is HTML and is rendering only parts of the resource, but when I render a resource that contains a links to another resource I want to dynamically generate the correct URL according the host (site) and resource specific URI part. <components> <component id = "1234" name = "component A" version = "1.0"> <link rel = "/component" uri="http://localhost:8080/component/1234" /> </component> <components> How do I make sure the 'uri' value is correct?

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  • Correct way to get absolute url in django

    - by dreamiurg
    A problem that I stumbled upon recently, and, even though I solved it, I would like to hear your opinion of what correct/simple/adopted solution would be. I'm developing website using Django + python. When I run it on local machine with "python manage.py runserver", local address is http://127.0.0.1:8000/ by default. However, on production server my app has other url, with path - like "http://server.name/myproj/" I need to generate and use permanent urls. If I'm using {% url view params %}, I'm getting paths that are relative to / , since my urls.py contains this urlpatterns = patterns('', (r'^(\d+)?$', 'myproj.myapp.views.index'), (r'^img/(.*)$', 'django.views.static.serve', {'document_root': settings.MEDIA_ROOT + '/img' }), (r'^css/(.*)$', 'django.views.static.serve', {'document_root': settings.MEDIA_ROOT + '/css' }), ) So far, I see 2 solutions: modify urls.py, include '/myproj/' in case of production run use request.build_absolute_uri() for creating link in views.py or pass some variable with 'hostname:port/path' in templates Are there prettier ways to deal with this problem? Thank you.

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  • How to generate complex url like stackoverflow?

    - by Freewind
    I'm using playframework, and I hope to generate complex urls like stackoverflow. For example, I want to generate a question's url: http://aaa.com/questions/123456/How-to-generator-a-complex-url Note the last part, it's the title of the question. But I don't know how to do it. UPDATED In the playframework, we can define routes in conf/routes file, and what I do is: GET /questions/{<\d+>id} Questions.show In this way, when we call @{Questions.show(id)} in views, it will generate: http://aaa.com/questions/123456 But how to let the generated has a title part, is difficult.

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  • C# - Name the Design Pattern

    - by nettguy
    Using Fluent Interface design here if i call something like dog.Train("Running").Train("Eating").Do("Running").Do("Eating"); what is the name of this pattern ? is it chain-of-responsibility or there any specific design pattern name associated with it?

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  • How do I alter the URL?

    - by CitadelCSCadet
    I'm currently working on a big web application for a company and we are about 4 months in, but we have a harmless(but annoying) problem that we have just left because we didn't time to change it. The way we setup our MVC is leaving us with the Servlet being stacked one after the other endless amounts of times on the URL so if we had a Servlet named "ControllerServlet" and I did something on the website I would get a result such as this the first time. WebsiteXXXXXXX.com/XXX/ControllerServletXXXX And the next time I were to do something everything will work fine, but the URL will stack the ControllerServlet Path like this.. WebsiteXXXXXXX.com/XXX/ControllerServlet/ControllerServlet/XXXX WebsiteXXXXXXX.com/XXX/ControllerServlet/ControllerServlet/ControllerServlet/XXXX and so on.... Although it is working perfectly fine, something is obviously not right. I imagine this is an easy fix, but could really use somebodies help. Thanks alot

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  • change url or query string wihout reloading using jquery plugin

    - by Pradyut Bhattacharya
    Hi I want to change the url or query string without reloading the page... I have used the QUERY STRING OBJECT plugin for jquery I have this example page in which on click of a album it should change the query string... Now i can change the url using the code window.location.href = $.query.set('aid', a_id); but it goes for reloading the page... and this code does not have any effect var newUrl = $.query.set('aid', a_id); How can do without reloading the page... how can i do without reloading the page... Thanks Pradyut India

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  • Appending empty query string param to the URL in Rails

    - by Termopetteri
    Is there a way to append something to the query string with no value set? I would like to see this kind of URL being generated: http://local/things?magic. What I'm looking for is when the user goes to http://local/other?magic then every URL in the generated page would contain magic in the end. Following code is almost a solution but it gives me http://local/things?magic=. There is an extra = that I don't want there. def default_url_options(options) if params.has_key?("magic") { :magic => "" } end end Setting { :magic => nil } will remove the magic entirely from the generated URLs.

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  • Java design flaws that are unlikely to change due to backward compatibility

    - by koppernickus
    What are the Java language and standard library design flaws you are aware of? I ask only for flaws that: cannot be changed or are unlikely to change due to backward compatibility, are NOT controversial, i.e. most of programmers would agree that "this is a bug not a feature" (for example checked exceptions seem to be controversial language feature, so I wouldn't classify them as "design flaw").

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  • Parsing a URL - Php Question

    - by Adi Mathur
    I am using the Following code <?php $url = 'http://www.ewwsdf.org/012Q/rhod-05.php?arg=value#anchor'; $parse = parse_url($url); $lnk= "http://".$parse['host'].$parse['path']; echo $lnk; ?> This is giving me the output as http://www.ewwsdf.org/012Q/rhod-05.php How can i modify the code so that i get the output as http://www.ewwsdf.org/012Q/ Just need the Directory name without the file name ( I actually need the link so that i can link up the images which are on the pages, By appending the link behind the image Eg http://www.ewwsdf.org/012Q/hi.jpg )

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  • Simple database design and LINQ

    - by Anders Svensson
    I have very little experience designing databases, and now I want to create a very simple database that does the same thing I have previously had in xml. Here's the xml: <services> <service type="writing"> <small>125</small> <medium>100</medium> <large>60</large> <xlarge>30</xlarge> </service> <service type="analysis"> <small>56</small> <medium>104</medium> <large>200</large> <xlarge>250</xlarge> </service> </services> Now, I wanted to create the same thing in a SQL database, and started doing this ( hope this formats ok, but you'll get the gist, four columns and two rows): > ServiceType Small Medium Large > > Writing 125 100 60 > > Analysis 56 104 200 This didn't work too well, since I then wanted to use LINQ to select, say, the Large value for Writing (60). But I couldn't use LINQ for this (as far as I know) and use a variable for the size (see parameters in the method below). I could only do that if I had a column like "Size" where Small, Medium, and Large would be the values. But that doesn't feel right either, because then I would get several rows with ServiceType = Writing (3 in this case, one for each size), and the same for Analysis. And if I were to add more servicetypes I would have to do the same. Simply repetitive... Is there any smart way to do this using relationships or something? Using the second design above (although not good), I could use the following LINQ to select a value with parameters sent to the method: protected int GetHourRateDB(string serviceType, Size size) { CalculatorLinqDataContext context = new CalculatorLinqDataContext(); var data = (from calculatorData in context.CalculatorDatas where calculatorData.Service == serviceType && calculatorData.Size == size.ToString() select calculatorData).Single(); return data.Hours; } But if there is another better design, could you please also describe how to do the same selection using LINQ with that design? Please keep in mind that I am a rookie at database design, so please be as explicit and pedagogical as possible :-) Thanks! Anders

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  • Resources on technical GUI design

    - by Thomas Lötzer
    Hi, I am looking for recommendations on resources (both books and websites) on designing GUI applications. By designing I mean the technical design (when and how to use data binding, when should MVC/MVP be used, what functionality should go into the model, the view, the controller/presenter, how can different parts of the UI best be kept in sync ...), not the screen design of which button goes where or how the interaction with the user should take place. Thanks, Thomas

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  • Find any type of url, and replace "click here" text with regexp jquery

    - by Takács Zsolt
    Hi! I need a little script in jQ because I have to change the long urls to a shorten "click here" text. I want to change only the url text not the value of href's attrib like this: <a href="http://verylongurl.ext/ohshitwhatlongisit/yaythatstoolongforme">http://verylongurl.ext/ohshitwhatlongisit/yaythatstoolongforme</a> to.. <a href="http://verylongurl.ext/ohshitwhatlongisit/yaythatstoolongforme">click here</a> The script must work on any possible type of url for example: http: https: ftp: and so on... tyvm girls and guys! Regs!

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  • after .htaccess url rewrite, css lost, and cannot perform logoff in some of the url rewrited page

    - by Patrick
    Here is my working .htaccess Options +FollowSymlinks RewriteEngine on #rep.php RewriteRule ^all,all.html$ rep.php?repID=all&repName=all RewriteRule ^([A-Z]+),([A-Za-z\sA-Za-z]+)\.html$ rep.php?repID=$1&repName=$2 #rep.php with page numbers RewriteRule ^([A-Za-z]+),([A-Za-z\sA-Za-z]+),([0-9]+)\.html$ rep.php?repID=$1repName=$2&page=$3 #quotedetails.php RewriteRule ^(Q[0-9]+)\.html$ quotedetails.php?quoteID=$1 RewriteRule ^index.html$ index.php RewriteRule ^addquote.html$ addquote.php RewriteRule ^search.html$ search.php RewriteRule ^viewall.html$ viewall.php RewriteRule ^howto.html$ howto.php above code works, but if i change the rewrite url style to repID/repName/page.html, all the CSS will be lost, how to fix this issue? another issue is, i have a login panel (modified from Cool login system), in some of the rewrited url like all, all.html or repID, repName.html or quoteID.html, when I click log out button, its not working and not redirect me to the index.html. in other pages(addquote.html, viewall.html, howto.html, search.html..), it works fine and redirect me to the index.htm after i click the logout button.

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  • Gruber URL Regex tweak to capture "domain.com"

    - by mootymoots
    I found an updated version of John Gruber's regex for url matching in this post by user GianPac, which states it's been adapted to recognize url without protocol or the www part: (?i)\b((?:[a-z][\w-]+:(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.-]+[.][a-z]{2,4}/?)(?:[^\s()<]+|(([^\s()<]+|(([^\s()<]+)))))(?:(([^\s()<]+|(([^\s()<]+))))|[^\s`!()[]{};:'\".,<?«»“”‘’])) Whilst this works in most cases, I found it does not match "google.com". It does match "google.comm" and "google.co.uk", so this must be a small oversight. The trouble is, I literally hate regex. It's the bane of my life. I just want to try and tweak this one more time to allow for "google.com" - can anyone throw me a pointer? I (think) it's something to do with this part of the code: +[.][a-z]{2,4}/?) ?

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