| author | sylvain.thenault@logilab.fr |
| Fri, 17 Apr 2009 09:37:29 +0200 | |
| branch | tls-sprint |
| changeset 1389 | ae58c2e7e1f7 |
| parent 1205 | 79d33f7db590 |
| permissions | -rw-r--r-- |
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.. -*- coding: utf-8 -*- |
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Data model definition: the *schema* |
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=================================== |
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The **schema** is the core piece of a `CubicWeb` application as it defines |
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the handled data model. It is based on entity types that are either already |
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defined in the `CubicWeb` standard library; or more specific types, that |
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`CubicWeb` expects to find in one or more Python files under the directory |
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`schema`. |
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At this point, it is important to make clear the difference between |
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*relation type* and *relation definition*: a *relation type* is only a relation |
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name with potentially other additionnal properties (see XXXX), whereas a |
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*relation definition* is a complete triplet |
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"<subject entity type> <relation type> <object entity type>". |
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A relation type could have been implied if none is related to a |
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relation definition of the schema. |
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.. include:: B0011-schema-stdlib.en.txt |
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.. include:: B0012-schema-definition.en.txt |
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