Add SFX integration into base TT OPAC, with config.tt2 entries

If openurl.enabled is true, then resolve ISBNs and ISSNs and display the
corresponding electronic resources that we have available. Note that if
there is a subfield 9 with SFX in either the ISBN or ISSN, then that is
the preferred ISSN to use; otherwise we fall back to resolving all of
the ISSNs in the record.

Signed-off-by: Dan Scott <dscott@laurentian.ca>

diff --git a/Open-ILS/web/templates/default/opac/parts/config.tt2 b/Open-ILS/web/templates/default/opac/parts/config.tt2
index fd1c3e9..74fa111 100644 (file)
--- a/Open-ILS/web/templates/default/opac/parts/config.tt2
+++ b/Open-ILS/web/templates/default/opac/parts/config.tt2
@@ -16,4 +16,15 @@ ctx.refworks.url = 'http://www.refworks.com';
 # in addition, you might want to proxy access to RefWorks - for example:
 # ctx.refworks.url = 'http://librweb.laurentian.ca/login?url=http://refworks.scholarsportal.info';
 
+##############################################################################
+# OpenURL resolution
+##############################################################################
+# Evergreen provides the ability to point at an OpenURL resolver to find
+# electronic resources for a given ISSN or ISBN. Currently, only the SFX
+# resolver is supported.
+##############################################################################
+
+openurl.enabled = 'false';
+openurl.baseurl = 'http://sfx.example.com/instance';
+
 %]

diff --git a/Open-ILS/web/templates/default/opac/parts/misc_util.tt2 b/Open-ILS/web/templates/default/opac/parts/misc_util.tt2
index 5d4249e..752ce57 100644 (file)
--- a/Open-ILS/web/templates/default/opac/parts/misc_util.tt2
+++ b/Open-ILS/web/templates/default/opac/parts/misc_util.tt2
@@ -28,6 +28,38 @@
 
         args.holdings = [];
         args.uris = [];
+        args.issns = [];
+
+        # we use $9 of ISBN and ISSN as a flag for e-version
+        sfx_isbn = xml.findnodes('//*[@tag="020"]/*[@code="9"]');
+        IF sfx_isbn;
+            IF sfx_isbn.textContent == "SFX";
+                my_parent = sfx_isbn.parentNode();
+                sfx_isbn = my_parent.findnodes('./*[@code="a"]');
+                sfx_isbn.replace('-', '');
+                args.resolver_isbn = sfx_isbn.replace('\ .*', '');
+            END;
+        END;
+
+        sfx_issn = xml.findnodes('//*[@tag="022"]/*[@code="9"]');
+        IF sfx_issn;
+            IF sfx_issn.textContent == "SFX";
+                my_parent = sfx_issn.parentNode();
+                sfx_issn = my_parent.findnodes('./*[@code="a"]');
+                args.issns.push(
+                    sfx_issn.textContent.replace('[^\d\-X]', '')
+                );
+            END;
+        END;
+
+        # we snag all issns if no SFX available
+        IF args.issns.size == 0;
+            FOR rawissn IN xml.findnodes('//*[@tag="022"]/*[@code="a"]');
+                args.issns.push(
+                    rawissn.textContent.replace('[^\d\-X]', '')
+                );
+            END;
+        END;
 
         # URI info is in volumes/volume/uris/volume, instead of uri element
         FOR volume IN xml.findnodes('//*[local-name()="volumes"]/*[local-name()="volume"]');

diff --git a/Open-ILS/web/templates/default/opac/parts/record/summary.tt2 b/Open-ILS/web/templates/default/opac/parts/record/summary.tt2
index 63db6ed..74569c5 100644 (file)
--- a/Open-ILS/web/templates/default/opac/parts/record/summary.tt2
+++ b/Open-ILS/web/templates/default/opac/parts/record/summary.tt2
@@ -1,4 +1,7 @@
-[% ctx.page_title = attrs.title | html_entity %]
+[%  PROCESS "default/opac/parts/misc_util.tt2";
+    USE ResolverResolver;
+    ctx.page_title = attrs.title | html_entity
+%]
 <!-- ****************** rdetail_summary.xml ***************************** -->
 <abbr class="unapi-id" title='tag:[% ctx.hostname %],[% date.format(date.now, '%Y') %]:biblio-record_entry/[% ctx.bre_id %]'></abbr>
 
@@ -80,6 +83,18 @@
                             </td>
                             <td valign="top" id='rdetail_physical_desc'>[% attrs.phys_desc %]</td>
                         </tr>
+                        [% IF openurl.enabled == 'true'; FOR issn IN args.issns %]
+                            [% sfx = ResolverResolver.resolve_issn(issn, openurl.baseurl)%]
+                            [% FOR res IN sfx %]
+                            <tr name="results_issn_tr">
+                                <td valign="top">
+                                    <strong><a href="[% res.target_url %]">
+                                        [% res.public_name %]</a></strong>
+                                </td>
+                                <td>[% res.target_coverage %]</td>
+                            </tr>
+                            [% END %]
+                        [% END %]
                         <tr>
                             <td nowrap='nowrap' valign="top">
                                 <strong id="rdetail_ed_lbl">[% IF attrs.edition; l("Edition"); END %]</strong>

diff --git a/Open-ILS/web/templates/default/opac/parts/result/table.tt2 b/Open-ILS/web/templates/default/opac/parts/result/table.tt2
index 964312a..6b5db2f 100644 (file)
--- a/Open-ILS/web/templates/default/opac/parts/result/table.tt2
+++ b/Open-ILS/web/templates/default/opac/parts/result/table.tt2
@@ -1,5 +1,9 @@
 [%  PROCESS "default/opac/parts/misc_util.tt2";
 
+    IF openurl.enabled == 'true';
+        USE ResolverResolver;
+    END;
+
     ctx.result_start = 1 + ctx.page_size * page;
     ctx.result_stop = ctx.page_size * (page + 1);
     IF ctx.result_stop > ctx.hit_count; ctx.result_stop = ctx.hit_count; END;
@@ -116,6 +120,19 @@
                                                             </td>
                                                             <td>[% attrs.isbn %]</td>
                                                         </tr>
+                                                        [% IF openurl.enabled == 'true'; FOR issn IN args.issns %]
+                                                            [% sfx = ResolverResolver.resolve_issn(issn, openurl.baseurl)%]
+                                                            [% FOR res IN sfx %]
+                                                        <tr name="results_issn_tr">
+                                                            <td valign="top">
+                                                                <strong><a href="[% res.target_url %]">
+                                                                [% res.public_name %]</a></strong>
+                                                            </td>
+                                                            <td>[% res.target_coverage %]</td>
+                                                        </tr>
+                                                            [% END %]
+                                                        [% END %]
+
                                                         <tr name="results_edition_tr" class="[% attrs.edition ? '' : 'hide_me' %]">
                                                             <td valign="top">
                                                                 <strong>[% l('Edition:') %]</strong>