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edweb-api.xql
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edweb-api.xql
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xquery version "3.1";
(:~
: The generalized functions for generating the content of ediarum.web.
:)
module namespace edwebapi="http://www.bbaw.de/telota/software/ediarum/web/api";
import module namespace edwebcontroller="http://www.bbaw.de/telota/software/ediarum/web/controller";
import module namespace kwic="http://exist-db.org/xquery/kwic";
declare namespace appconf="http://www.bbaw.de/telota/software/ediarum/web/appconf";
declare namespace expath="http://expath.org/ns/pkg";
declare namespace functx = "http://www.functx.com";
declare namespace http="http://expath.org/ns/http-client";
declare namespace output="http://www.w3.org/2010/xslt-xquery-serialization";
declare namespace tei="http://www.tei-c.org/ns/1.0";
declare namespace test="http://exist-db.org/xquery/xqsuite";
declare namespace repo="http://exist-db.org/xquery/repo";
declare variable $edwebapi:controller := "/ediarum.web";
declare variable $edwebapi:cache-collection := "/db/apps/ediarum.web/cache";
declare variable $edwebapi:projects-collection := "/db/projects";
(: See also $edweb:param-separator. :)
declare variable $edwebapi:param-separator := ";";
declare variable $edwebapi:object-limit := 10000;
declare function functx:change-element-ns-deep($element as element(), $newns as xs:string) as element() {let $newName := QName($newns, name($element)) return (element {$newName} {$element/@*, for $child in $element/node() return if ($child instance of element()) then functx:change-element-ns-deep($child, $newns) else $child})};
declare function functx:escape-for-regex($arg as xs:string?) as xs:string {replace($arg, '(\.|\[|\]|\\|\||\-|\^|\$|\?|\*|\+|\{|\}|\(|\))','\\$1')};
declare function functx:get-matches-and-non-matches($string as xs:string?, $regex as xs:string) as element()* {let $iomf := functx:index-of-match-first($string, $regex)return if (empty($iomf))then <non-match>{$string}</non-match>else if ($iomf > 1)then (<non-match>{substring($string,1,$iomf - 1)}</non-match>,functx:get-matches-and-non-matches(substring($string,$iomf),$regex))else let $length :=string-length($string)-string-length(functx:replace-first($string, $regex,''))return (<match>{substring($string,1,$length)}</match>,if (string-length($string) > $length)then functx:get-matches-and-non-matches(substring($string,$length + 1),$regex)else ())};
declare function functx:index-of-match-first($arg as xs:string?, $pattern as xs:string) as xs:integer? {if (matches($arg,$pattern))then string-length(tokenize($arg, $pattern)[1]) + 1 else ()};
declare function functx:is-node-in-sequence-deep-equal($node as node()?, $seq as node()*) as xs:boolean {some $nodeInSeq in $seq satisfies deep-equal($nodeInSeq,$node)};
declare function functx:pad-integer-to-length($integerToPad as xs:anyAtomicType?, $length as xs:integer) as xs:string {if ($length < string-length(string($integerToPad)))then error(xs:QName('functx:Integer_Longer_Than_Length'))else concat(functx:repeat-string('0',$length - string-length(string($integerToPad))),string($integerToPad))};
declare function functx:replace-first($arg as xs:string?, $pattern as xs:string, $replacement as xs:string) as xs:string {replace($arg, concat('(^.*?)', $pattern),concat('$1',$replacement))};
declare function functx:repeat-string($stringToRepeat as xs:string?, $count as xs:integer) as xs:string {string-join((for $i in 1 to $count return $stringToRepeat), '')};
declare function functx:substring-after-last($arg as xs:string?, $delim as xs:string) as xs:string {replace ($arg,concat('^.*',functx:escape-for-regex($delim)),'')};
declare function functx:substring-before-last($arg as xs:string?, $delim as xs:string) as xs:string {if (matches($arg, functx:escape-for-regex($delim))) then replace($arg, concat('^(.*)', functx:escape-for-regex($delim),'.*'), '$1') else ''};
(:~
:
:)
declare function edwebapi:filter-list(
$list as map(*)*,
$filters as map(*),
$params as map(*)
) as map(*)*
{
if (count(map:keys($filters)) > 0) then
let $filter := $filters?*[1]
let $filter-id := $filter?id
let $filter-values := tokenize($params?($filter-id), $edwebapi:param-separator)
let $filter-expression :=
if (empty($filter-values))
then function($list as map(*)*) { $list}
else
switch($filter?type)
case "id"
return function($list as map(*)*) { $list[?filter?($filter-id) = $filter-values] }
case "single"
return function($list as map(*)*) { $list[?filter?($filter-id) = $filter-values] }
case "union"
return function($list as map(*)*) { $list[?filter?($filter-id) = $filter-values] }
case "intersect"
return
function($list as map(*)*) {
for $item in $list
let $item-filter-values := $item?filter?($filter-id)
let $filters-are-true :=
for $fv in $filter-values
return ($fv = $item-filter-values)
return
if (not( false() = ($filters-are-true) ))
then $item
else ()
}
case "greater-than"
return function($list as map(*)*) { $list[?filter?($filter-id) >= $filter-values] }
case "lower-than"
return function($list as map(*)*) { $list[?filter?($filter-id) <= $filter-values] }
default
return function($list as map(*)*) { () }
let $filtered-list := $filter-expression($list)
let $other-filter := map:remove($filters, $filter-id)
return
if (count(map:keys($other-filter)) > 0)
then edwebapi:filter-list($filtered-list, $other-filter, $params)
else $filtered-list
else $list
};
(:~
:
:)
declare function edwebapi:get-all(
$app-target as xs:string,
$limit as xs:string?,
$cache as xs:string,
$with-filter as xs:boolean
)
{
let $object-types := edwebapi:get-config($app-target)//appconf:object/@xml:id
let $found-objects :=
for $object-type in $object-types
let $map :=
if ($with-filter)
then
edwebapi:load-map-from-cache(
"edwebapi:get-object-list",
[$app-target, $object-type, $limit],
edwebapi:data-collection($app-target),
$cache = "no",
$cache = "reset"
)
else
edwebapi:load-map-from-cache(
"edwebapi:get-object-list-without-filter",
[$app-target, $object-type, $limit],
edwebapi:data-collection($app-target),
$cache = "no",
$cache = "reset"
)
return $map?list
return
map:merge((map:entry("date-time", current-dateTime()), $found-objects))
};
(:~
: Retrieves the appconf.xml from the project app.
:
: @param $app-target the collection name where the app is installed, e.g. project.WEB
: @return the appconf.xml as node
:)
declare function edwebapi:get-config(
$app-target as xs:string
) as node()*
{
doc($app-target||"/appconf.xml")
};
(:~
:
:)
declare function edwebapi:list-parts(
$xml,
$parts,
$part-name,
$object-type,
$object-id
)
{
let $part := $parts?($part-name)
let $root := $part?root
let $id-path := $part?id
let $xpath := ".//" || $root || "/" || $id-path
let $depends := $part?depends
(: Wenn es depend gibt, .. :)
return
if ($depends != "")
then
(: .. gib den 'path' mit, suche die dortigen IDs und liefere subxml, sowie den
ersetzten 'path' zurück. :)
let $depend-maps :=
local:list-part-ids(
$xml,
$parts?($depends),
$part?path,
$object-type,
$object-id
)
(: Dann suche nach Teilen im 'subxml' .. :)
for $d-map in $depend-maps
let $ids := util:eval-inline($d-map?xml, $xpath)
(: .. und ersetze im 'path' die aktuelle IDs. :)
for $id in $ids
return replace($d-map?path, "<" || $part?xmlid || ">", $id)
else
(: Sonst suche im XML und ersetze im 'path' die aktuelle ID. :)
let $ids := util:eval-inline($xml, $xpath)
for $id in $ids
return replace($part?path, "<" || $part?xmlid || ">", $id)
};
(:~
:
:)
declare function local:list-part-ids(
$xml,
$part,
$path,
$object-type,
$object-id
)
{
let $root := $part?root
let $id-path := $part?id
let $xpath := ".//" || $root || "[" || $id-path || "]"
let $nodes := util:eval-inline($xml, $xpath)
for $node in $nodes
let $id := util:eval-inline($node, $id-path)
let $sub-path := replace($path, "<" || $part?xmlid || ">", $id)
let $this-path := replace($part?path, "<" || $part?xmlid || ">", $id)
let $sub-xml := edwebcontroller:api-get("/api/"||$object-type||"/"||$object-id||"/"||$this-path)
return
map:merge((
map:entry("id", $id),
map:entry("path", $sub-path),
map:entry("xml", $sub-xml)
))
};
(:~
: Retrieves and stores the result of a function in cache. Only executes the function if no cache
: exists or if the cache is out of date because data updates.
:
: @param $function-name the name of the function to apply
: @param $params an array of the function params
: $node-set the node set the cache date is compared to
: @reload if true the cache is always rebuild
: @return the result of the function as a map.
:)
declare function edwebapi:load-map-from-cache(
$function-name as xs:string,
$params as array(*),
$data-collection as xs:string?,
$soft-reload as xs:boolean?,
$hard-reload as xs:boolean?
) as map(*)
{
let $node-set as node()* :=
if ($data-collection||"" = "")
then
()
else if (xmldb:collection-available($data-collection))
then
collection($data-collection)/*
else if (doc-available($data-collection))
then
doc($data-collection)/*
else
error(xs:QName("edwebapi:load-map-from-cache"), "Can't find collection or resource. data-collection: "
||$data-collection)
let $arity := array:size($params)
let $function := function-lookup(xs:QName($function-name), $arity)
let $cache-collection := $edwebapi:cache-collection
let $cache-file-name := substring-after($function-name, ":")||"-"
||translate(string-join($params?*[.!='cache'], "-"),'/','__')||".json"
let $load-cache := util:binary-doc($cache-collection||"/"||$cache-file-name)
let $cache-exists := exists($load-cache)
let $load-map :=
if($cache-exists)
then parse-json(util:binary-to-string($load-cache))
else false()
let $current-date-time := current-dateTime()
let $cache-is-new :=
if ($cache-exists)
then ($current-date-time < xs:dateTime($load-map?date-time) + xs:dayTimeDuration("PT1M"))
else false()
let $cache-is-up-to-date :=
if ($cache-exists and count($node-set)=0)
then true()
else if ($cache-exists and $soft-reload)
then
let $since := $load-map?date-time
let $last-modified := xmldb:find-last-modified-since($node-set, $since)
return count($last-modified)=0
else if ($cache-exists)
then true()
else false()
let $load-from-cache := $cache-is-new or (not($hard-reload) and $cache-is-up-to-date)
let $apply-and-store :=
if ($load-from-cache)
then ()
else
let $map := apply($function, $params)
return xmldb:store($cache-collection, $cache-file-name, serialize($map,
<output:serialization-parameters><output:method>json</output:method>
</output:serialization-parameters>))
let $load-map :=
if ($load-from-cache)
then $load-map
else
let $load-cache := util:binary-doc($cache-collection||"/"||$cache-file-name)
return parse-json(util:binary-to-string($load-cache))
return $load-map
};
(:~
:
:)
declare function edwebapi:get-object(
$app-target as xs:string,
$object-type as xs:string,
$object-id as xs:string
) as map(*)
{
let $object-def := edwebapi:get-config($app-target)//appconf:object[@xml:id=$object-type]
let $namespaces :=
for $ns in $object-def/appconf:item/appconf:namespace
let $prefix := $ns/@id/string()
let $namespace-uri := $ns/string()
return util:declare-namespace($prefix, $namespace-uri)
let $data-collection := edwebapi:data-collection($app-target)
let $collection := $object-def/appconf:collection
let $root := $object-def/appconf:item/appconf:root
let $list := edwebapi:get-objects($data-collection, $collection, $root)
let $id-xpath := $object-def/appconf:item/appconf:id
let $find-expression := $id-xpath||"='"||$object-id||"'"
let $item := util:eval("$list["||$find-expression||"][1]")
let $inner-nav :=
for $n in $object-def/appconf:inner-navigation/appconf:navigation
let $key := $n/@xml:id/string()
let $xpath := $n/appconf:xpath/string()
let $id-path := $n/appconf:id/string()
let $label-func := $n/appconf:label-function/normalize-space()
let $order-by := $n/appconf:order-by/string()
let $list :=
array {
for $i at $pos in util:eval-inline($item, $xpath)
let $id := util:eval-inline($i, $id-path)||""
let $label := util:eval($label-func)($i)
let $order :=
if ($order-by = "label")
then $label[1]
else $pos
order by $order
return
map:merge((
map:entry("id", $id),
map:entry("label", $label)
))
}
return
map:entry(
$key,
map:merge((
map:entry("name", $n/appconf:name/string()),
map:entry("xpath", $xpath),
map:entry("id", $id-path),
map:entry("order-by", $order-by),
map:entry("label-function", $label-func),
map:entry("list", $list)
))
)
let $parts :=
let $separator := $object-def/appconf:parts/@separator/string()
let $prefix := $object-def/appconf:parts/@prefix/string()
let $prepath := ""
for $part in $object-def/appconf:parts/appconf:part
return local:get-part-map($part, $prefix, $prepath, $separator, "")
let $xml :=
if ($item[1])
then $item[1]
else error(xs:QName("edwebapi:get-object-001"), "Can't find "||$root||"["||$find-expression
||"] in collection "||$collection||" in "||$data-collection)
let $views :=
for $view at $pos in $object-def//appconf:views/appconf:view
let $id := $view/@id/string()
let $xslt := $view/appconf:xslt/string()
let $label := $view/appconf:label/string()
let $params := $view/appconf:xslt/@params/string()||""
return
map:entry (
$id,
map:merge((
map:entry("id", $id),
map:entry("xslt", $xslt),
map:entry("label", $label),
map:entry("params", $params),
map:entry("n", $pos)
))
)
let $object-map := edwebapi:eval-base-data-for-object($object-def, $item)
let $filter-map := edwebapi:eval-filters-for-object($app-target, $object-def, $object-map, $item)
return
map:merge((
$object-map,
$filter-map,
map:entry("xml", $xml),
map:entry("inner-nav", map:merge(( $inner-nav )) ),
map:entry("parts", map:merge(( $parts )) ),
map:entry("views", map:merge(( $views )) )
))
};
(:~
: Performs an XSLT transformation of the object.
:
: @param $app-target
: @param $object-type
: @param $object-id
: @param $view the id of the view
: @param $params a map with parameters which is transferred to the xslt
: @return the transformed object.
:)
declare function edwebapi:get-object-as(
$app-target as xs:string,
$object-type as xs:string,
$object-id as xs:string,
$view as xs:string,
$params as map(*)
) as node()*
{
let $object := edwebapi:get-object($app-target, $object-type, $object-id)
let $xsl-path := $object?views?($view)?xslt
let $path := $app-target||"/"||$xsl-path
let $stylesheet :=
if (doc($path))
then doc($path)
else error(xs:QName("edwebapi:get-object-as-001"), $path||" not found.")
let $xml := $object?xml
let $parameters :=
<parameters>
<param name="exist:stop-on-error" value="yes"/>
{
for $param in map:keys($params)
return element param {
attribute name { $param },
attribute value { $params?($param) }
}
} </parameters>
let $result :=
try {
transform:transform($xml, $stylesheet, $parameters)
}
catch * {
error(xs:QName("edwebapi:get-object-as-002"), "Can't transform "
||util:collection-name($xml)||"/"||util:document-name($xml)||" with "
||$path)
}
return $result
};
declare function edwebapi:eval-base-data-for-object(
$object-def as node(),
$object as node()
) as map(*)
{
let $object-id := $object-def/appconf:item/appconf:id/string()
let $id := string(util:eval-inline($object,$object-id))
let $object-type := $object-def/@xml:id/string()
let $label-function := $object-def/appconf:item/appconf:label[@type=('xquery','xpath')]
let $error :=
if (count($id) != 1)
then (error(xs:QName("edwebapi:get-object-list-001"), "There should be exact one ID for each object."
||" Count: "||count($id)||", ID function: "||$label-function||", Object: "
||serialize($object) ))
else ()
let $labels :=
if ($label-function/@type = 'xpath')
then array { util:eval-inline($object, $label-function) }
else if ($label-function/@type = 'xquery')
then array { util:eval($label-function)($object) }
else ()
let $label :=
try {
$labels?1
}
catch * {
$id
}
let $label :=
if (normalize-space($label) = "")
then ("<empty-title>")
else $label
let $search-score as xs:float := xs:float(0.0)
return
map:merge ((
map:entry("id", $id),
map:entry("absolute-resource-id", util:absolute-resource-id($object)),
map:entry("object-type", $object-type),
map:entry("labels", $labels),
map:entry("label", $label),
map:entry("score", $search-score)
))
};
declare function edwebapi:eval-filters-for-object(
$app-target as xs:string,
$object-def as node(),
$object as map(*),
$object-xml as node()
) as map(*)
{
let $cache := ""
let $filters := $object-def/appconf:filters/appconf:filter
let $data-collection := edwebapi:data-collection($app-target)
let $filter-values :=
for $f in $filters
let $filter-id := $f/@xml:id/string()
let $filter-objects :=
if ($f/@type = "relation")
then
let $rel-type-name := $f/appconf:relation/@id/string()
let $rel-perspective := $f/appconf:relation/@as/string()
let $rel-target :=
switch($rel-perspective)
case "subject" return "object"
case "object" return "subject"
default return
error(xs:QName("edwebapi:get-object-list-002"),
"Invalid configuration parameter value, only 'subject' or 'object' allowed."
)
let $relations :=
edwebapi:load-map-from-cache(
"edwebapi:get-relation-list",
[$app-target, $rel-type-name, ()],
$data-collection,
$cache = "no",
$cache = "reset"
)
let $items := $relations?list?*[?($rel-perspective) = $object?id]
for $i in $items return
switch($f/appconf:label/string())
case "predicate" return $i?predicate
case "id" return $i?($rel-target)
case "id+predicate"
return $i?($rel-target)||"+"||$i?predicate
default return
error(xs:QName("edwebapi:get-object-list-003"),
"Invalid configuration parameter value, only 'id', 'predicate', and 'id+predicate' allowed."
)
else if (exists($f/appconf:root[@type = 'label']))
then $object?labels?*
else
if (ends-with($f/appconf:xpath/string(),')'))
then
util:eval-inline($object-xml, $f/appconf:xpath/string())
else if (ends-with($f/appconf:xpath/string(),']'))
then
util:eval-inline($object-xml, $f/appconf:xpath/string())
else
try {
util:eval-inline($object-xml, $f/appconf:xpath/string()||"/normalize-space()")
}
catch * {
util:eval-inline($object-xml, $f/appconf:xpath/string())
}
let $filter-label-function := util:eval($f/appconf:label-function[@type='xquery'])
return
map:entry(
$filter-id,
for $fo in $filter-objects
return $filter-label-function($fo)
)
let $filter-values :=
(
$filter-values,
map:entry("id", $object?id)
)
let $label-filter-values :=
for $f in $filters[./appconf:root[@type = 'label']]
let $filter-id := $f/@xml:id/string()
let $filter-objects := $object?labels?*
let $filter-label-function := util:eval($f/appconf:label-function[@type='xquery'])
return
map:entry(
$filter-id,
for $fo in $filter-objects
return array { $filter-label-function($fo) }
)
return
map:merge ((
map:entry("filter", map:merge(( $filter-values )) ),
map:entry("label-filter", map:merge(( $label-filter-values )) )
))
};
(:~
: The function retrieves objects from the data.
:
: @param $app-target the collection name where the app is installed, e.g. /db/apps/project.WEB
: @param $object-type the xml:id of the object-type
: @return a map which contains "date-time", "type"="objects", "list" with an array of object
: maps containing "id", "absolute-resource-id" "object-type", "label", "filter", "label-filter".
:)
declare function edwebapi:get-object-list(
$app-target as xs:string,
$object-type as xs:string,
$limit as xs:string?
) as map(*)
{
let $object-type := string($object-type)
let $data-collection := edwebapi:data-collection($app-target)
let $config := edwebapi:get-config($app-target)
let $object-def := $config//appconf:object[@xml:id=$object-type]
let $collection := $object-def/appconf:collection
let $root := $object-def/appconf:item/appconf:root
let $namespaces :=
for $ns in $object-def/appconf:item/appconf:namespace
let $prefix := $ns/@id/string()
let $namespace-uri := $ns/string()
return util:declare-namespace($prefix, $namespace-uri)
let $objects-xml := edwebapi:get-objects($data-collection, $collection, $root)
let $count := count($objects-xml)
let $limit :=
if ($limit||"" != "")
then number($limit)
else $edwebapi:object-limit
let $objects :=
for $object in $objects-xml[position() <= $limit]
let $object-map := edwebapi:eval-base-data-for-object($object-def, $object)
let $filter-map := edwebapi:eval-filters-for-object($app-target, $object-def, $object-map, $object)
return
map:entry(
$object-map?id,
map:merge((
$object-map,
$filter-map
))
)
let $filters := $object-def/appconf:filters/appconf:filter
let $filter :=
map:merge((
for $f at $pos in $filters
let $key := $f/@xml:id/string()
return
map:entry(
$key,
map:merge((
map:entry("id", $key),
map:entry("name", $f/appconf:name/string()),
map:entry("n", $pos),
map:entry("type", $f/appconf:type/string()),
map:entry("depends", $f/@depends/string()),
map:entry("xpath", $f/appconf:xpath/string()),
map:entry(
"label-function",
$f/appconf:label-function[@type='xquery']/normalize-space()
)
))
)
))
return
map:merge((
map:entry("date-time", current-dateTime()),
map:entry("type", "objects"),
map:entry("filter", $filter),
map:entry("results-found", $count),
map:entry("results-shown", if ($count < $limit) then $count else $limit),
map:entry("list", map:merge(( $objects )) )
))
};
declare function edwebapi:get-object-list-with-search(
$object-list as map(*),
$app-target as xs:string,
$object-type as xs:string,
$search-xpath as xs:string?,
$kwic-width as xs:string?,
$search-query as xs:string?,
$search-type as xs:string?,
$slop as xs:string?
) as map(*)
{
let $data-collection := edwebapi:data-collection($app-target)
let $config := edwebapi:get-config($app-target)
let $object-type := string($object-type)
let $object-def := $config//appconf:object[@xml:id=$object-type]
let $collection := $object-def/appconf:collection
let $namespaces :=
for $ns in $object-def/appconf:item/appconf:namespace
let $prefix := $ns/@id/string()
let $namespace-uri := $ns/string()
return util:declare-namespace($prefix, $namespace-uri)
let $root := $object-def/appconf:item/appconf:root
let $objects-xml := edwebapi:get-objects($data-collection, $collection, $root)
let $kwic-width :=
if ($kwic-width||"" = "")
then "30"
else $kwic-width
let $search-xpath :=
if ($search-xpath eq ".")
then "("||string-join($object-def/appconf:lucene/appconf:text/@qname/string(), "|")||")"
else $search-xpath
let $query :=
switch ($search-type)
case "regex" return
<bool>
{
for $word in tokenize($search-query, ' ' )
return
<regex occur="must">{$word}</regex>
}
</bool>
case "phrase" return <phrase slop="{$slop}">{$search-query}</phrase>
case "lucene" return $search-query
default return
<bool>
{
for $word in tokenize($search-query, ' ' )
return
<term occur="must">{$word}</term>
}
</bool>
let $query :=
if ($search-type = "lucene")
then $query
else
<query>{$query}</query>
let $objects-xml :=
if ($search-xpath||$search-query||"" != "")
then
let $init-indices := local:init-search-indices($app-target)
return
util:eval("$objects-xml[ft:query(.//"||$search-xpath||", $query)]")
else $objects-xml
let $object-id := $object-def/appconf:item/appconf:id/string()
let $list := $object-list?list
let $query-function := ".//"||$search-xpath||"[ft:query(., $query)]"
let $list :=
for $object in $objects-xml
let $id := string(util:eval-inline($object,$object-id))
let $object-map := $list?($id)
let $search-score as xs:float :=
if ($search-xpath||$search-query||"" != "")
then xs:float(ft:score($object))
else xs:float(0.0)
let $search-hits :=
if ($search-xpath||$search-query||"" != "")
(: then util:eval-inline($object, ".//" || $search-xpath)[ft:query(., $search-query)] :)
then util:eval-inline($object, $query-function)
else ()
return
map:entry(
$id,
map:merge ((
$object-map,
map:entry(
"search-results",
for $hit in $search-hits
let $kwic := kwic:summarize($hit, <config width="{$kwic-width}"/>)
(: TODO delete following line? :)
for $item at $pos in $kwic
return
map:merge ((
map:entry("context-previous", $kwic[$pos]/span[@class='previous']/string()),
map:entry("keyword", $kwic[$pos]/span[@class='hi']/string()),
map:entry("context-following", $kwic[$pos]/span[@class='following']/string()),
map:entry("score", ft:score($hit))
))
),
map:entry("score", $search-score)
))
)
let $list := map:merge($list)
let $object-list :=
map:put($object-list, "list", $list)
return $object-list
};
(:~
: This function retrieves all requested objects without analyzing the filter values. This avoids
: an endless loading loop because of relation filters and relations itself.
:
:)
declare function edwebapi:get-object-list-without-filter(
$app-target as xs:string,
$object-type as xs:string,
$limit as xs:string?
) as map(*)
{
let $config := edwebapi:get-config($app-target)
let $object-type := string($object-type)
let $object-def := $config//appconf:object[@xml:id=$object-type]
let $collection := $object-def/appconf:collection
let $namespaces :=
for $ns in $object-def/appconf:item/appconf:namespace
let $prefix := $ns/@id/string()
let $namespace-uri := $ns/string()
return util:declare-namespace($prefix, $namespace-uri)
let $root := $object-def/appconf:item/appconf:root
let $data-collection := edwebapi:data-collection($app-target)
let $objects-xml := edwebapi:get-objects($data-collection, $collection, $root)
let $count := count($objects-xml)
let $limit :=
if ($limit||"" != "")
then number($limit)
else $edwebapi:object-limit
let $objects :=
for $object in $objects-xml[position() <= $limit]
let $object-map := edwebapi:eval-base-data-for-object($object-def, $object)
return
map:entry(
$object-map?id,
map:merge((
$object-map
))
)
return
map:merge((
map:entry("date-time", current-dateTime()),
map:entry("type", "objects"),
map:entry("filter", map:merge(( )) ),
map:entry("results-found", $count),
map:entry("results-shown", if ($count < $limit) then $count else $limit),
map:entry("list", map:merge(( $objects )) )
))
};
(:~
: Retrieves a list of objects.
:
: @param $data-collection the path to the project data collection
: @param $collection the path to the collection relative to the project data collection
: @param $root a xpath expression to the object root.
: @return a list of nodes.
:)
declare function edwebapi:get-objects(
$data-collection as xs:string,
$collection as xs:string,
$root as xs:string
) as node()*
{
try {
if (xmldb:collection-available($data-collection||$collection))
then
util:eval("collection($data-collection||$collection)//"||$root)
else if (doc-available($data-collection||$collection))
then
util:eval("doc($data-collection||$collection)//"||$root)
else
error(xs:QName("edwebapi:get-objects-002"), "Can't find collection or resource. data-collection: "
||$data-collection||", collection/resource: "||$collection)
}
catch * { error(xs:QName("edwebapi:get-objects-001"), "Can't load objects. data-collection: "
||$data-collection||", collection: "||$collection||", root: "||$root)
}
(: TODO: Hack for exist-db 4.6.1 This can probably be solved more elegantly :)
(:~ util:eval("collection('" || $collection || "')//" || $xpath) ~:)
};
(:~
: Make fulltext index search
:
: @return map with search results
:)
declare function edwebapi:get-search-results(
$app-target as xs:string,
$search-id as xs:string,
$kwic-width as xs:string?,
$search-query as xs:string,
$search-type as xs:string?,
$slop as xs:string?,
$limit as xs:string?,
$cache as xs:string?
) as map(*)
{
let $init-indices := local:init-search-indices($app-target)
let $config := edwebapi:get-config($app-target)
let $data-collection := edwebapi:data-collection($app-target)
let $search-config := $config//appconf:search[@xml:id=$search-id]
let $search-config :=
if (empty($search-config))
then error(xs:QName("edwebapi:get-search-results-001"), "There is no search object configured with the ID '" || $search-id || "'.")
else $search-config
let $objects :=
for $target in $search-config//appconf:target
let $object-type := $target/@object/string()
let $search-xpath := $target/@xpath/string()
(: Get object list with search :)
let $object-list :=
edwebapi:load-map-from-cache(
"edwebapi:get-object-list",
[$app-target, $object-type, $limit],
edwebapi:data-collection($app-target),
$cache = "no",
$cache = "reset"
)
return
edwebapi:get-object-list-with-search(
$object-list,
$app-target,
$object-type,
$search-xpath,
$kwic-width,
$search-query,
$search-type,
$slop
)?list?*
let $objects :=
for $object in $objects
let $score as xs:float := $object?score
order by $score descending
return $object
return
map:merge ((
map:entry("date-time", current-dateTime()),
map:entry("type", "search"),
map:entry("id", $search-id),
map:entry("query", $search-query),
map:entry("kwic-width", $kwic-width),
map:entry("list", $objects)
))
};
(:~
:
:)
declare function edwebapi:order-items(
$list as map(*)*,
$order as xs:string?
) as map(*)*
{
if (not($order eq 'label'))
then $list
else
let $long-list :=
for $item in $list
return
for $label at $pos in $item?labels?*
return
map:merge((
$item,
map:entry(
"filter",
map:merge((
$item?filter,
map:merge((
for $fk in map:keys($item?label-filter) return
map:entry($fk, $item?label-filter?($fk)?*[$pos])
))
))
),
map:entry("label-pos",$pos),
map:entry("label", $label)
))
for $item in $long-list
order by $item?label
return $item
};
(:~
:
:)
declare function local:get-part-map(
$part as node(),
$prefix as xs:string,
$prepath as xs:string,
$separator as xs:string,
$depends as xs:string
)
{
let $xmlid := $part/@xml:id/string()
let $part-prefix :=
concat(
if ($prepath != "")
then $prepath||$separator
else "",
if ($part/@starts-with)
then $part/@starts-with||$prefix
else ""
)
let $root := $part/appconf:root/string()
let $id := $part/appconf:id/string()
let $parts := $part/appconf:part
let $path := $part-prefix||"<"||$xmlid||">"
return
(
map:entry(
$xmlid,
map:merge((
map:entry("xmlid", $xmlid),
map:entry("path", $path),
map:entry("root", $root),
map:entry("id", $id),
map:entry("depends", $depends)
))
),
if (count($parts) > 0)
then
for $p in $parts
return local:get-part-map($p, $prefix, $path, $separator, $xmlid)
else ()
)
};
(:~
: Retrieves relation triples from the data.
:
: @param $app-target the collection name where the app is installed, e.g. /db/apps/project.WEB
: @param $relation-type-name the xml:id of the relation-type
: @return a map which contains "date-time", "type"="relations", "subject-type", "object-type",
: "name", "list" with an array of relation maps containing "subject", "object" "predicate".
:)
declare function edwebapi:get-relation-list(
$app-target as xs:string,
$relation-type-name as xs:string,
$limit as xs:string?
) as map(*)
{