Databases
StackOverflow2013
Postsdbo
POLoad variable from class in iOS
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POLoad variable from class in iOS
    primarykey
    data
    text
    <p>I feel stupid, and I am sleepless all because I want to get my app to work the way I want it to.</p> <p>I am trying to load the author variable from one class into a new class, but the new class is returning (null).</p> <p>I'm afraid I'm on the go right now, so I couldn't look at other examples. I'm typing this on my phone, I'll try my best to type the code.</p> <pre><code>NSString *html = [NSString stringWithFormat:@"&lt;html&gt; ... &lt;body&gt;&lt;h1&gt;%@&lt;/h1&gt; &lt;hr /&gt;%@&lt;hr /&gt;%@&lt;hr /&gt; &lt;/body&gt;&lt;html&gt;", self.title, author, userText]; </code></pre> <p>So I made the variable of author in the .h file:</p> <p><code>@property (strong, nonatomic) NSString *author;</code></p> <p>And then I made it load the author string from the master class:</p> <pre><code>BDNMasterViewController *mvc; author = mvc.author; </code></pre> <p>And then I made it log the Author in the master class:</p> <pre><code>NSString *authortext = @"Author: "; authortext = [authortext stringByAppendingString:author]; NSLog(authortext); </code></pre> <p>It logs the author correctly. It doesn't show the author here:</p> <p><img src="https://i.stack.imgur.com/jyd2F.png" alt="enter image description here"></p> <p>the (null) in the picture is what I'm trying to fix.</p> <p>What mistakes did I make? (Since I'm sleep deprived and everything)</p> <p>EDIT: I did import the Master in the Detail</p> <pre><code>#import "BDNMasterViewController.h" </code></pre> <p>To look at the entire MasterViewController and DetailViewController:</p> <p><a href="http://pastebin.com/ykJQs2B2" rel="nofollow noreferrer">http://pastebin.com/ykJQs2B2</a> - BDNMasterViewController.h</p> <p><a href="http://pastebin.com/xFbQc8UJ" rel="nofollow noreferrer">http://pastebin.com/xFbQc8UJ</a> - BDNMasterViewController.m</p> <p><a href="http://pastebin.com/SszmiAAh" rel="nofollow noreferrer">http://pastebin.com/SszmiAAh</a> - BDNDetailViewController.h</p> <p><a href="http://pastebin.com/SRKiQ21G" rel="nofollow noreferrer">http://pastebin.com/SRKiQ21G</a> - BDNDetailViewController.m</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USx86cam
    1. USx86cam
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COWhere is `*mvc` being assigned a value? It appears to be declared, but never set. If it is nil, then `mvc.author` will also be `nil`, since calling a method on `nil`.
      singulars
      1. POLoad variable from class in iOS
      1. USRich Tolley
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload