Adding support of number and select field types
reoranize the entity link between field and value of instances.
Merge branch 'field-factory' into entity-rework
in the goal of merge the form field and the values of each entity field
fixing a bug for the display of hidden elements.
Adding a __toString() method for form element, which display the html code. Adding parsing function and conditions for the FieldFactory
Clean a little the Entity class, ready to start to implement the [smart orm field detection]. Go ? -> #v0.0.3