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Diffstat (limited to 'demos/quickstart/protected/pages/Database/ActiveRecord.page')
| -rw-r--r-- | demos/quickstart/protected/pages/Database/ActiveRecord.page | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/demos/quickstart/protected/pages/Database/ActiveRecord.page b/demos/quickstart/protected/pages/Database/ActiveRecord.page index 967aae89..99c7acf8 100644 --- a/demos/quickstart/protected/pages/Database/ActiveRecord.page +++ b/demos/quickstart/protected/pages/Database/ActiveRecord.page @@ -424,6 +424,19 @@ that supports foreign key contraints. For ActiveRecord relationships to function underlying database must support foreign key constraints (e.g. MySQL with InnoDB). </p> +<p> +In the following sections we shall consider the following entity relationship between +<tt>Teams</tt>, <tt>Players</tt>, <tt>Skills</tt> and <tt>Profiles</tt>. +</p> +<img src="<%~ ar_relations.png %>" class="figure" /> + + +<p>The goal is to obtain object models that represents to some degree the entity +relationships in the above figure. +</p> + +<img src="<%~ ar_objects.png %>" class="figure"> + <h2>Foreign Key Mapping</h2> |