Hi, I was trying to use parameters in the regular expression like this:
regexp(Alias, /^$alias.*$/i)
But it seems returns nothing. However, if I just do a simple search like:
regexp(Alias, /$alias/i)
it works.
SO I’m wondering how should I inject the parameter in the first query.
MichelDiz
(Michel Diz)
2
Hi Freddie,
Why are you using the dollar sign in the beginning?
Test on https://play.dgraph.io/ any example and define the reasons for the expression. Explain what you want to do.
e.g (that you can use on play Dgraph):
{
directors(func: regexp(name@en, /^steven.*$/i)) {
name@en
}
}
OneLine // treat ^ and $ as only matching at beginning and end of text
WasDollar // regexp OpEndText was $, not \z
syntax package - regexp/syntax - Go Packages
Hi Michel,
Thanks for the reply.
Because $alias is the valuable that I pass into the query.
query test($dir: string = "steven"){
directors(func: regexp(name@en, /^$dir.*$/i)) {
name@en
}
}
How can I get it working?
regards
MichelDiz
(Michel Diz)
4
Like this:
query test($name: string = "/^Steven.*$/i") {
directors(func: regexp(name@en, $name)) {
name@en
}
}
You can also run this query in https://play.dgraph.io/ as it is.
Oh, you’re right. I haven’t thought about it this way.
Thanks a lot.
1 Like
system
(system)
Closed
6
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