1 files changed, 100 insertions, 0 deletions
diff --git a/python/fatcat_tools/transforms.py b/python/fatcat_tools/transforms.py
new file mode 100644
index 00000000..c454536b
--- /dev/null
+++ b/python/fatcat_tools/transforms.py
@@ -0,0 +1,100 @@
+
+import collections
+from fatcat_client.models import ReleaseEntity
+from fatcat_client.api_client import ApiClient
+
+def entity_to_json(entity):
+    ac = ApiClient()
+    return ac.sanitize_for_serialization(entity)
+
+def entity_from_json(json_str, entity_type):
+    """
+    Hack to take advantage of the code-generated deserialization code
+    """
+    ac = ApiClient()
+    thing = collections.namedtuple('Thing', ['data'])
+    thing.data = json_str
+    return ac.deserialize(thing, entity_type)
+
+def release_elastic_dict(release):
+    """
+    Converts from an entity model/schema to elasticsearch oriented schema.
+
+    Returns: dict
+    """
+
+    if release.state != 'active':
+        raise ValueError("Entity is not 'active'")
+
+    # First, the easy ones (direct copy)
+    t = dict(
+        ident = release.ident,
+        revision = release.revision,
+        title = release.title,
+        release_type = release.release_type,
+        release_status = release.release_status,
+        language = release.language,
+        doi = release.doi,
+        pmid = release.pmid,
+        pmcid = release.pmcid,
+        isbn13 = release.isbn13,
+        core_id = release.core_id,
+        wikidata_qid = release.wikidata_qid
+    )
+
+    if release.release_date:
+        # TODO: resolve why this can be either a string or datetime
+        if type(release.release_date) == str:
+            t['release_date'] = release.release_date
+        else:
+            t['release_date'] = release.release_date.strftime('%F')
+
+    container = release.container
+    container_is_kept = False
+    if container:
+        t['publisher'] = container.publisher
+        t['container_name'] = container.name
+        t['container_issnl'] = container.issnl
+        container_extra = container.extra
+        if container_extra:
+            t['container_is_oa'] = container_extra.get('is_oa')
+            container_is_kept = container_extra.get('is_kept', False)
+            t['container_is_longtail_oa'] = container_extra.get('is_longtail_oa')
+    else:
+        t['publisher'] = release.publisher
+
+    files = release.files or []
+    t['file_count'] = len(files)
+    in_wa = False
+    in_ia = False
+    t['file_pdf_url'] = None
+    for f in files:
+        is_pdf = 'pdf' in f.get('mimetype', '')
+        for url in f.get('urls', []):
+            if url.get('rel', '') == 'webarchive':
+                in_wa = True
+            if '//web.archive.org/' in url['url'] or '//archive.org/' in url['url']:
+                in_ia = True
+                if is_pdf:
+                    t['file_pdf_url'] = url['url']
+            if not t['file_pdf_url'] and is_pdf:
+                t['file_pdf_url'] = url['url']
+    t['file_in_webarchive'] = in_wa
+    t['file_in_ia'] = in_ia
+
+    extra = release.extra or dict()
+    if extra:
+        t['in_shadow'] = extra.get('in_shadow')
+        if extra.get('grobid') and extra['grobid'].get('is_longtail_oa'):
+            t['container_is_longtail_oa'] = True
+    t['any_abstract'] = bool(release.abstracts)
+    t['is_kept'] = container_is_kept or extra.get('is_kept', False)
+
+    t['ref_count'] = len(release.refs or [])
+    t['contrib_count'] = len(release.contribs or [])
+    contrib_names = []
+    for c in (release.contribs or []):
+        if c.raw_name:
+            contrib_names.append(c.raw_name)
+    t['contrib_names'] = contrib_names
+    return t