Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>A slight modification of the suggestion of @Krizz, so that it works properly if the constants header file is to be included in the PCH, which is rather normal. Since the original is imported into the PCH, it won't reload it into the <code>.m</code> file and thus you get no symbols and the linker is unhappy.</p> <p>However, the following modification allows it to work. It's a bit convoluted, but it works.</p> <p>You'll need <strong>3</strong> files, <code>.h</code> file which has the constant definitions, the <code>.h</code> file and the <code>.m</code> file, I'll use <code>ConstantList.h</code>, <code>Constants.h</code> and <code>Constants.m</code>, respectively. the contents of <code>Constants.h</code> are simply:</p> <pre><code>// Constants.h #define STR_CONST(name, value) extern NSString* const name #include "ConstantList.h" </code></pre> <p>and the <code>Constants.m</code> file looks like:</p> <pre><code>// Constants.m #ifdef STR_CONST #undef STR_CONST #endif #define STR_CONST(name, value) NSString* const name = @ value #include "ConstantList.h" </code></pre> <p>Finally, the <code>ConstantList.h</code> file has the actual declarations in it and that is all:</p> <pre><code>// ConstantList.h STR_CONST(kMyConstant, "Value"); … </code></pre> <p><strong>A couple of things to note:</strong></p> <ol> <li><p>I had to redefine the macro in the <code>.m</code> file <strong>after</strong> <code>#undef</code>ing it for the macro to be used.</p></li> <li><p>I also had to use <strong><code>#include</code></strong> instead of <code>#import</code> for this to work properly and avoid the compiler seeing the previously precompiled values.</p></li> <li><p>This will require a recompile of your PCH (and probably the entire project) whenever any values are changed, which is not the case if they are separated (and duplicated) as normal.</p></li> </ol> <p>Hope that is helpful for someone.</p>
    singulars
    1. This table or related slice is empty.
    1. POConstants in Objective-C
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USScott Little
    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. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COUsing #include fixed this headache for me.
      singulars
      1. PO
      1. USRamsel
 

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