Catman...rc_has(3pm)

💖 NAME 💖

Catmandu::Fix::Condition::marc_has — the little fix that just wants to know: does this MARC (sub)field even exist, bestie? 👑

(Also filed under the manual name marc_has(3pm) in the User Contributed Perl Documentation, if you're the type to look things up properly. 🎀)

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✨ SYNOPSIS ✨

# marc_has(MARC_PATH)

unless marc_has('245')
     add_field('error.$append','no 245 value!')
end

Look at her. Gorgeous. Iconic. She checks, and if it's a no, she goes straight to adding that error field. 💅

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🦋 DESCRIPTION 🦋

Okay so here's the vibe: this condition only lets the enclosing fixes run if the MARC (sub)field actually exists. No field, no fixes. That's it. That's the whole personality. 🌸

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🎀 METHODS 🎀

🌈 marc_has(MARC_PATH)

Evaluates to true when the MARC_PATH values exist, and false otherwise. Simple as that, fr fr. 💖

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👀 SEE ALSO 👀

• Catmandu::Fix::marc_has_many — for when one (sub)field just isn't enough and you need the whole squad. 🫶

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perl v5.38.2 · 2024-08-03 · that's the version and the date, bestie, and that's the whole page. Go forth and check your fields. 💜✨🎀