Added multi search for functional names and added enc props to search.

gui/src/components/search/SearchBar.js

@@ -28,6 +28,30 @@ const quantitiesWithAlternativeOptions = {
   }
 }
 
+// We need to treat dft. and encyclopedia. special. Usually all dft domain pieces
+// are prefixed dft., but the encycloepdia is top-level and also a dft. specific
+// quantity. These to functions remove and add the dft./encyclopedia. prefixes accordingly.
+function getDomainOfQuantity(quantity) {
+  if (!quantity.includes('.')) {
+    return null
+  }
+  const firstSegment = quantity.split('.')[0]
+  if (firstSegment === 'encyclopedia') {
+    return 'dft'
+  }
+  return firstSegment
+}
+
+function addDomainToQuantity(shortenedQuantityName, domainKey) {
+  if (!searchQuantities[shortenedQuantityName]) {
+    shortenedQuantityName = domainKey + '.' + shortenedQuantityName
+    if (!searchQuantities[shortenedQuantityName]) {
+      shortenedQuantityName = 'encyclopedia.' + shortenedQuantityName.slice(4)
+    }
+  }
+  return shortenedQuantityName
+}
+
 /**
  * This searchbar component shows a searchbar with autocomplete functionality. The
  * searchbar also includes a status line about the current results. It uses the
@@ -45,7 +69,7 @@ export default function SearchBar() {
     return Object.keys(searchQuantities)
       .map(quantity => ({
         quantity: quantity,
-        domain: quantity.includes('.') ? quantity.split('.')[0] : null
+        domain: getDomainOfQuantity(quantity)
       }))
       .filter(option => !option.domain || option.domain === domain.key)
   }, [domain.key])
@@ -158,11 +182,8 @@ export default function SearchBar() {
   const parseOption = useCallback(input => {
     const [inputQuantity, inputValue] = input.split('=')
 
-    let quantity = inputQuantity
+    const quantity = addDomainToQuantity(inputQuantity, domain.key)
     let value = inputValue
-    if (!searchQuantities[quantity]) {
-      quantity = domain.key + '.' + quantity
-    }
     if (value && searchQuantities[quantity] && searchQuantities[quantity].many) {
       value = value.split(',').map(item => item.trim())
     }

nomad/datamodel/dft.py

@@ -150,7 +150,7 @@ class DFTMetadata(MSection):
     xc_functional_names = Quantity(
         type=str, default=[], shape=['*'],
         description='The list of libXC functional names that where used in this entry.',
-        a_search=Search())
+        a_search=Search(many_and='append'))
 
     system = Quantity(
         type=str, default='not processed',