Proper display of save errors.

app.py

@@ -2,7 +2,8 @@
 
 from flask import Flask, render_template, url_for, redirect, request, g, jsonify, session
 from depicts import (utils, wdqs, commons, mediawiki, artwork, database,
-                     wd_catalog, human, wikibase, wikidata_oauth, wikidata_edit, mail)
+                     wd_catalog, human, wikibase, wikidata_oauth, wikidata_edit, mail,
+                     fixtures)
 from depicts.pager import Pagination, init_pager
 from depicts.model import (DepictsItem, DepictsItemAltLabel, Edit, Item,
                            Language, WikidataQuery, Triple)
@@ -181,8 +182,11 @@ def save(item_id):
             mail.send_mail('depicts save error', r.text)
             raise
 
-        if 'error' in reply:
+        save_error = reply.get('error')
-            return 'error:' + r.text
+        if save_error:
+            mail.send_mail('depicts save error', r.text)
+            return render_template('save_error.html', error=save_error)
+
         saved = r.json()
         lastrevid = saved['pageinfo']['lastrevid']
         assert saved['success'] == 1
@@ -1090,6 +1094,11 @@ def server_block_report():
     check_for_blocks()
     return render_template('block_report.html')
 
+@app.route('/fixture/save_error')
+def save_error_fixture():
+    error = fixtures.save_error()['error']
+    return render_template('save_error.html', error=error)
+
 
 if __name__ == "__main__":
     app.debug = True

depicts/fixtures.py

@@ -0,0 +1,3 @@
+def save_error():
+    return {"error":{"code":"failed-save","info":"The save has failed.","messages":[{"name":"wikibase-api-failed-save","parameters":[],"html":"The save has failed."},{"name":"wikimedia-globalblocking-ipblocked-range","parameters":["[//meta.wikimedia.org/wiki/User:Jon_Kolbert Jon Kolbert]","meta.wikimedia.org","[[m:NOP|Open Proxy]]: Colocation webhost, Contact [[m:Special:Contact/stewards|stewards]] if you are affected","04:21, 8 April 2020","04:21, 8 April 2023","78.129.222.14","78.129.128.0/17"],"html":"<p><b>Your IP address is in a range that has been <a href=\"https://meta.wikimedia.org/wiki/Special:MyLanguage/Global_blocks\" class=\"extiw\" title=\"m:Special:MyLanguage/Global blocks\">blocked on all Wikimedia Foundation wikis</a>.</b>\n</p><p>The block was made by <a class=\"external text\" href=\"https://meta.wikimedia.org/wiki/User:Jon_Kolbert\">Jon Kolbert</a> (meta.wikimedia.org).\nThe reason given is <i><a href=\"https://meta.wikimedia.org/wiki/NOP\" class=\"extiw\" title=\"m:NOP\">Open Proxy</a>: Colocation webhost, Contact <a href=\"https://meta.wikimedia.org/wiki/Special:Contact/stewards\" class=\"extiw\" title=\"m:Special:Contact/stewards\">stewards</a> if you are affected</i>.\n</p>\n<ul><li>Start of block: 04:21, 8 April 2020</li>\n<li>Expiry of block: 04:21, 8 April 2023</li></ul>\n<p>Your current IP address is 78.129.222.14 and the blocked range is 78.129.128.0/17.\nPlease include all above details in any queries you make.\n</p><p>If you believe you were blocked by mistake, you can find additional information and instructions in the <a href=\"https://meta.wikimedia.org/wiki/Special:MyLanguage/No_open_proxies\" class=\"extiw\" title=\"m:Special:MyLanguage/No open proxies\">No open proxies</a> global policy.\nOtherwise, to discuss the block please <a href=\"https://meta.wikimedia.org/wiki/Steward_requests/Global\" class=\"extiw\" title=\"m:Steward requests/Global\">post a request for review on Meta-Wiki</a> or send an email to the <a href=\"https://meta.wikimedia.org/wiki/Special:MyLanguage/Stewards\" class=\"extiw\" title=\"m:Special:MyLanguage/Stewards\">stewards</a> <a href=\"https://meta.wikimedia.org/wiki/Special:MyLanguage/OTRS\" class=\"extiw\" title=\"m:Special:MyLanguage/OTRS\">OTRS</a> queue at <kbd>stewards@wikimedia.org</kbd> including all above details.\n</p>"},{"name":"permissionserrors","parameters":[],"html":"Permission error"}],"docref":"See https://www.wikidata.org/w/api.php for API usage. Subscribe to the mediawiki-api-announce mailing list at &lt;https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce&gt; for notice of API deprecations and breaking changes."},"servedby":"mw1315"}
+

templates/save_error.html

@@ -0,0 +1,18 @@
+{% extends "base.html" %}
+
+{% block content %}
+<div class="p-2">
+  <h1>Error saving depicts statements to Wikidata</h1>
+
+  <p>It was not possible to save your edit to Wikidata. The details of the error returned by the Wikidata API are below.</p>
+
+{% for message in error.messages %}
+  <h4>{{ message.name }}</h4>
+  <div class="mb-3">
+    {{ message.html | safe }}
+  </div>
+{% endfor %}
+
+</div>
+
+{% endblock %}