The context is an array of key-value that includes the content of the current view.
If it's an open view from a parent view, "_parent" key will retrieve the context of the parent object.
For Human fields (One2Many and many2many), the "_selected" key will be "true" for the selected lines.
Example of context:
Context: {
__me__=com.axelor.meta.ActionHandler@1574409e,
_model=com.axelor.vente.db.AccountV,
__user__=User{id=2, code=admin, name=Administrator, password=admin},
__self__=AccountV{id=null, code=null, name=null},
__this__=AccountV{id=null, code=null, name=null}
}
Key details:
__me__: Action taken
_model: Package name
__user__: User who performed the action
__self__: Object underway, with the values of the current view
__this__: Object underway, with the values base