Adding render_and_extract function to mdrender service

taiga/mdrender/extensions/mentions.py

@@ -63,4 +63,7 @@ class MentionsPattern(Pattern):
         a.set('alt', user.get_full_name())
         a.set('title', user.get_full_name())
         a.set('class', "mention")
+
+        self.md.extracted_data['mentions'].append(user)
+
         return a

taiga/mdrender/extensions/references.py

@@ -87,4 +87,7 @@ class TaigaReferencesPattern(Pattern):
         a.set('alt', subject)
         a.set('title', subject)
         a.set('class', html_classes)
+
+        self.md.extracted_data['references'].append(instance.content_object)
+
         return a

taiga/mdrender/service.py

@@ -4,8 +4,7 @@ import functools
 from django.core.cache import cache
 from django.utils.encoding import force_bytes
 
-from markdown import markdown
-from fn import F
+from markdown import Markdown
 
 from .extensions.autolink import AutolinkExtension
 from .extensions.automail import AutomailExtension
@@ -53,12 +52,26 @@ def cache_by_sha(func):
     return _decorator
 
 
-#@cache_by_sha
-def render(project, text):
+def _get_markdown(project):
     wikilinks_config = {"base_url": "#/project/{}/wiki/".format(project.slug),
                         "end_url": ""}
-    extensions = _make_extensions_list(wikilinks_config=wikilinks_config, project=project)
-    return markdown(text, extensions=extensions)
+    extensions = _make_extensions_list(wikilinks_config=wikilinks_config,
+                                       project=project)
+    md = Markdown(extensions=extensions)
+    md.extracted_data = {"mentions": [], "references": []}
+    return md
+
+
+@cache_by_sha
+def render(project, text):
+    md = _get_markdown(project)
+    return md.convert(text)
+
+
+def render_and_extract(project, text):
+    md = _get_markdown(project)
+    result = md.convert(text)
+    return (result, md.extracted_data)
 
 
 class DiffMatchPatch(diff_match_patch.diff_match_patch):
@@ -75,9 +88,10 @@ class DiffMatchPatch(diff_match_patch.diff_match_patch):
                 html.append("<span>%s</span>" % text)
         return "".join(html)
 
+
 def get_diff_of_htmls(html1, html2):
     diffutil = DiffMatchPatch()
     diff = diffutil.diff_main(html1, html2)
     return diffutil.diff_pretty_html(diff)
 
-__all__ = ['render', 'get_diff_of_htmls']
+__all__ = ["render", "get_diff_of_htmls", "render_and_extract"]

tests/unit/test_mdrender.py

@@ -5,7 +5,7 @@ import pytest
 import taiga.base
 from taiga.mdrender.extensions import mentions
 from taiga.mdrender.extensions import emojify
-from taiga.mdrender.service import render, cache_by_sha, get_diff_of_htmls
+from taiga.mdrender.service import render, cache_by_sha, get_diff_of_htmls, render_and_extract
 
 from taiga.projects.references import services
 
@@ -162,3 +162,18 @@ def test_get_diff_of_htmls_deletions():
 def test_get_diff_of_htmls_modifications():
     result = get_diff_of_htmls("<p>test1</p>", "<p>1test</p>")
     assert result == "<span>&lt;p&gt;</span><ins style=\"background:#e6ffe6;\">1</ins><span>test</span><del style=\"background:#ffe6e6;\">1</del><span>&lt;/p&gt;</span>"
+
+def test_render_and_extract_references():
+    with patch("taiga.mdrender.extensions.references.get_instance_by_ref") as mock:
+        instance = mock.return_value
+        instance.content_type.model = "issue"
+        instance.content_object.subject = "test"
+        (_, extracted) = render_and_extract(dummy_project, "**#1**")
+        assert extracted['references'] == [instance.content_object]
+
+def test_render_and_extract_mentions():
+    with patch("taiga.mdrender.extensions.mentions.User") as mock:
+        instance = mock.objects.get.return_value
+        instance.get_full_name.return_value = "test name"
+        (_, extracted) = render_and_extract(dummy_project, "**@user1**")
+        assert extracted['mentions'] == [instance]