Save the position of each node when place is changed in the diagram.

In order to use this module the diagram node must have 2 position (integer) attributes to save its position, and the definition on the diagram goes like the following example.

<diagram string="Relation Editor">

<node object="builder.ir.model" position_x="diagram_position_x" position_y="diagram_position_y">

<field name="model"/> <field name="name"/> <field name="osv_memory" invisible="1"/>

</node> <arrow object="builder.ir.model.fields" source="model_id" destination="relation_model_id"> </arrow>

</diagram>