An entity is defined as follow
[Entity]
- #attr1 (*)
+ +attr1 (*)
attr2 (*)
-with (\*) = optional SQL indications, and # denoting a (part of) a key.
+with (\*) = optional SQL indications, and + denoting a (part of) an identifier.
A relationship is defined in this way
Animal Cat Fish
Planet Mars Venus
-Finally, blocks must be separated by new lines. For a usage example, see example.html (it should render as seen in example\_\*.svg)
+Finally, blocks must be separated by new lines. For a usage example, see example.html (it should render as seen in example\_\*.svg);
+or example2.html for a bigger, more realistic illustration (small social network).
Note that the "drawMcd" method can take a second argument, which indicates the type of graph.
- * "bubble" draws the standard graph, as seen [here](https://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model#/media/File:ER_Diagram_MMORPG.png) for example
+ * "bubble" draws the standard graph, as seen [here](https://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model#/media/File:ER_Diagram_MMORPG.png)
* "compact" (default) use the same box for an entity and its attributes
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**TODO** list:
- functional integrity constraints (CIF)
- - inter-relations constraints (or, and, xor...)
+ - inter-relations constraints (or, and, xor, inclusion)
- inheritance with the right symbol (triangle)
- - put online somewhere (user enter graph description and get SVG + SQL)
-*Implementation note:* temporary dependency to [underscore](http://underscorejs.org/); good library but used so far only for its shuffle() method.
+*Implementation note:* temporary dependency to [underscore](http://underscorejs.org/); used only for its shuffle() method.