Databases
StackOverflow2013
Postsdbo
PO
 

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    1. POWhat Belongs in a Repository and What Doesn't?
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    1. USLazarus
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      1. VTUpMod
    1. COwhat if they decided to store images using Amazon S3, now you have database calls, and Rest calls in the same class. There should be a service with a method that wraps both calls. One to remove the record from the database, and then if that succeeds, a call to delete the file can be made, and that class can handle the details about if the image is on the file system, in the cloud, or in the database. I see those as two different responsibilities and two different concerns. They should be separated in implementation.
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      1. USNerdFury
    2. COSo, if my images are in the database then that's fine, it's a single concern but if the images are stored elsewhere then you plan to make the location of the images a separate concern to the location of the rest of the Product data and pass responsibility for knowing that to the application?
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      1. USLazarus
    3. CONo, the application can still be ignorant to where the images are stored. I would use an IImageManager interface with a 'DeleteImage' method. The app would need to use a concrete implementation of that interface that I would give to the calling application using Dependency Injection. I see your point, that they are related actions, and I'm not saying your approach is 'wrong', I'm saying that I think there are more fault tolerant ways of accomplishing this. You could make database calls, and file operations in your controller methods too, but you aren't for a reason. Separation of concerns.
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      1. USNerdFury
 

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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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