Databases
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    <p>There is a variant of the AF <code>UIImageView</code> category that calls a block when the asynchronous image request is complete. </p> <p>You can resize the returned image in the success block and assign it to the image view. See </p> <pre><code>- (void)setImageWithURLRequest:(NSURLRequest *)urlRequest placeholderImage:(UIImage *)placeholderImage success:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, UIImage *image))success failure:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error))failure </code></pre> <p>Once the image has been resized, make sure you assign the image to the <code>UIImageView</code> on the main queue using GCD as the block will be called in a background thread. </p> <p>Here's an example using a UIIImageView with its content mode set to AspectFill. Resizing using Core Graphics will usually look better than having the UIImageView rescale the image. </p> <pre><code>__weak typeof(self) weakSelf = self; CGSize targetSize = self.targetImageView.bounds.size; [self.targetImageView setImageWithURL:photoURL success:^(UIImage *image) { CGFloat imageHeight = image.size.height; CGFloat imageWidth = image.size.width; CGSize newSize = targetSize; CGFloat scaleFactor = targetSize.width / imageWidth; newSize.height = imageHeight * scaleFactor; UIGraphicsBeginImageContextWithOptions(newSize, NO, 0.0); [image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)]; UIImage *small = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); dispatch_async(dispatch_get_main_queue(),^ { weakSelf.targetImageView.image = small; }); } failure:^(NSError *error) { // Handel the error here }]; </code></pre>
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    1. POResize UIImage in in asynchronous mode, using AFNetworking
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    1. COYou shouldn't capture `self` strongly in blocks.
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    2. COUpdated answer to prevent capturing self.
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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.

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