CODEWITHSUNDEEP
xpath
Abercrombieande
Abercrombieande

Reputation: 699

XPath: match attributes of different nodes

I am trying to write an XPath expression that selects all the nodes only where the title of the movie matches the name of the actor. For example the following should return only B

<main>
    <movies>
        <movie title="A">
        </movie>
        <movie title="B">
        </movie>
        <movie title="C">
        </movie>
    </movies>
    <actors>
        <actor title="Z" name="someone">
        </actor>
        <actor title="D" name="somebody">
        </actor>
        <actor title="B" name="awesome name">
        </actor>
    </actors>
</main>

I have played around with different paths but I can't seem to get it to work. It seems like this should but I am not having any luck. Any suggestions are appreciated. Thanks

main/movies/movie/[@title = main/actors/actor/@title]

Upvotes: 0

Views: 79

Answers (1)

choroba
choroba

Reputation: 241738

In predicates (i.e. square brackets), any relative path starts at the node reached so far. There's no main under movie, you want the root node again, so you have to prepend the /:

/main/movies/movie[@title = /main/actors/actor/@title]
                            ^

Upvotes: 1

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