From: moodler Date: Sun, 30 Nov 2003 08:31:08 +0000 (+0000) Subject: Added information about databases X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=e935da6f31b7e72bdd20f54ee60ba288d6afe387;p=moodle.git Added information about databases --- diff --git a/lang/en/docs/coding.html b/lang/en/docs/coding.html index e1679c6fad..dd9df05621 100755 --- a/lang/en/docs/coding.html +++ b/lang/en/docs/coding.html @@ -161,6 +161,16 @@ GOOD: $assignments (for an array of objects)
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Database structures

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  1. Every table must have an auto-incrementing id field (INT(10)) as primary index.
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  2. The main table containing instances of each module must have the same name as the module (eg widget)
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  3. Other tables associated with a module that contain information about 'things' should be named widget_things (note the plural)
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  4. Column names should be simple and short, following the same rules as for variable names.
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  5. Columns that contain a reference to the id field of another table (eg widget) should be called widgetid.
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  6. Boolean fields should be implemented as small integer fields (eg INT(4)) containing 0 or 1, to allow for later expansion of values if necessary.
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  7. Most tables should have a timemodified field (INT(10) which is updated with a current timestamp obtained with the PHP time() function.
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Moodle Documentation

Version: $Id$