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how to use lazy rule to output various value [message #1850253]

Wed, 23 February 2022 02:16

Yanhong Dong

Messages: 25
Registered: September 2021

Junior Member

When I generate emftvm file, it tell me don't use distinct foreach. so I hope you can teach me how to change?I want to know which way I should iterate over the elements in the array
For this code, how to use the lazy rule to modify? thank you.
using {
coll : Sequence(String) = Sequence{'Score1', 'Score2', 'Total'};
}
to
tab : Table!Table (
lines <- t_lines
),
t_lines : distinct Table!Line foreach(e in coll)(
id <- coll->indexOf(e),
caption <- line_captions
),
line_captions : distinct Table!Caption foreach(e in coll)(
content <- e
)

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Re: how to use lazy rule to output various value [message #1850283 is a reply to message #1850253]

Wed, 23 February 2022 18:09

Dennis Wagelaar

Messages: 581
Registered: September 2012
Location: Belgium

Senior Member

...
using {
coll : Sequence(String) = Sequence{'Score1', 'Score2', 'Total'};
}
to
tab : Table!Table (
lines <- coll->collect(e | thisModule.CreateLine(e, coll->indexOf(e))
)
...

lazy rule CreateLine {
  from
    s : String,
    index : Integer
  to
    t : Table!Line (
      id <- index,
      caption <- thisModule.CreateCaption(s)
    )
}

lazy rule CreateCaption {
  from
    s : String
  to
    t : Table!Caption (
      content <- s
    )
}

Cheers,
Dennis

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