{criterion ?}

A conditional criterion (criteria associated with the ? logical operator) will only be taken into account by the loop if the data required by that criterion exist in the execution environment of that loop.

-  <BOUCLE_abc(ARTICLES) {id_rubrique ?}>

  • If there is an id_rubrique (nn) in the execution environment of the loop, then the loop will only select the data the matching the condition id_rubrique = #ENV{id_rubrique}
  • If there is no id_rubrique in the execution environment of the loop, then the criterion will be totally ignored.

-  Note that {id_rubrique ?} is equivalent to {id_rubrique?}.

Author Mark Published : Updated : 26/10/12

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