Merge pull request 'feat: import fruit DB from XML (story #03)' (#3) from feature/03-import-fruit-db into feature/02-manage-fruits

Reviewed-on: #3
This commit was merged in pull request #3.
This commit is contained in:
2026-06-17 12:46:04 +00:00
5 changed files with 449 additions and 1 deletions
+4
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@@ -12,6 +12,10 @@ frontend/.vite/
.env
backend/.env
# Import data — large binary files, not committed
03-data/
obstsorten.zip
# macOS
.DS_Store
+2 -1
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@@ -30,10 +30,11 @@ run-backend:
run-frontend:
cd frontend && npm run dev
## test: run all backend and frontend tests
## test: run all backend, frontend, and script tests
test:
cd backend && go test ./...
cd frontend && npm run test -- --run
cd scripts && python3 -m unittest import_fruits_test -v
## fmt: format all code
fmt:
+1
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@@ -6,6 +6,7 @@ A full-stack fruit-variety database (Go + Vue 3).
- Users can view a "Hello, OSDB!" landing page that confirms the backend is reachable via the Vite proxy.
- Users can create, view, edit, and delete fruit varieties, including managing synonyms and uploading images.
- Administrators can bulk-import the legacy fruit database from XML using `scripts/import_fruits.py`.
## Quick Start
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@@ -0,0 +1,249 @@
#!/usr/bin/env python3
"""
Import fruits from 03-data/obstsorten.xml into the OSDB database.
Usage:
DATABASE_URL=postgres://... python3 scripts/import_fruits.py
Idempotent: deletes synonyms and images for each fruit before re-inserting.
Upserts the fruit row by osdb_number.
"""
import glob
import os
import sys
import xml.etree.ElementTree as ET
from datetime import date, datetime
import psycopg2
DATA_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "03-data")
# typ values that are aggregate categories — coerced with a logged warning
AGGREGATE_TYPS = {"x", "bq", "aprpfi", "mirren", "pflzwe", "bo", "k"}
TYP_MAP = {
"a": "Apfelsorten",
"x": "Apfelsorten",
"b": "Birnensorten",
"bq": "Birnensorten",
"q": "Quittensorten",
"apr": "Aprikosen",
"aprpfi": "Aprikosen",
"pfi": "Pfirsiche",
"p": "Pfirsiche",
"mir": "Mirabellen",
"mirren": "Mirabellen",
"ren": "Renekloden",
"pfl": "Pflaumen",
"pflzwe": "Pflaumen",
"zwe": "Zwetschen",
"k": "Sauerkirschen",
"bo": "Brombeeren",
"bob": "Brombeeren",
"boe": "Erdbeeren",
"boh": "Himbeeren",
"boj": "Johannisbeeren",
"bos": "Stachelbeeren",
"wei": "Wein",
"w": "Wein",
}
IMAGE_DIRS = [
("einzelfruechte", "fruit"),
("blueten", "flower"),
("baume", "tree"),
]
def map_typ(typ: str):
"""Map XML typ code to fruit_type enum value. Returns None for unknowns."""
return TYP_MAP.get(typ)
def parse_synonyms(text) -> list:
"""Split comma-separated synonym text into a clean list."""
if not text:
return []
return [s.strip() for s in text.split(",") if s.strip()]
def parse_date(text) -> date | None:
"""Parse YYYYMMDD string to date. Returns None on failure or empty input."""
if not text:
return None
try:
return datetime.strptime(text.strip(), "%Y%m%d").date()
except ValueError:
return None
def find_images(fruit_id: str, data_dir: str) -> list:
"""
Find all _s0 images for a fruit across the three image directories.
Returns list of dicts with keys: filename, data, image_type.
"""
results = []
for subdir, image_type in IMAGE_DIRS:
pattern = os.path.join(data_dir, subdir, f"{glob.escape(fruit_id)}_*_s0.*")
for path in sorted(glob.glob(pattern)):
basename = os.path.basename(path)
# Verify the fruit_id is the exact prefix, not just a string prefix of
# another fruit's id (e.g. "mitschurins" must not steal
# "mitschurins_fruchtbare_nda_s0.jpg").
# Convention: basename = {id}_{type_code}_s0.{ext}
# So stripping the last _-segment before _s0 gives the exact id.
stem = basename.split("_s0.")[0]
actual_id = "_".join(stem.split("_")[:-1])
if actual_id != fruit_id:
continue
with open(path, "rb") as f:
data = f.read()
results.append(
{
"filename": basename,
"data": data,
"image_type": image_type,
}
)
return results
def import_fruits(conn, data_dir: str = None) -> dict:
"""
Import all fruits from obstsorten.xml.
Returns counts dict: fruits, synonyms, images, warnings, skipped.
"""
if data_dir is None:
data_dir = DATA_DIR
xml_path = os.path.join(data_dir, "obstsorten.xml")
tree = ET.parse(xml_path)
root = tree.getroot()
counts = {"fruits": 0, "synonyms": 0, "images": {img_type: 0 for _, img_type in IMAGE_DIRS}, "warnings": 0, "skipped": 0}
warnings = []
with conn.cursor() as cur:
for sorte in root.findall("sorte"):
osdb_number = (sorte.findtext("id") or "").strip()
name = (sorte.findtext("name") or "").strip()
typ = (sorte.findtext("typ") or "").strip()
synonym_text = sorte.findtext("synonym")
added_text = (sorte.findtext("added") or "").strip()
if not osdb_number or not name:
counts["skipped"] += 1
counts["warnings"] += 1
warnings.append(f"SKIP: missing id or name (id={osdb_number!r})")
continue
fruit_type = map_typ(typ)
if fruit_type is None:
counts["skipped"] += 1
warnings.append(f"SKIP: unknown typ={typ!r} for id={osdb_number!r}")
counts["warnings"] += 1
continue
if typ in AGGREGATE_TYPS:
warnings.append(f"COERCE: typ={typ!r}{fruit_type!r} for id={osdb_number!r}")
counts["warnings"] += 1
created_at = parse_date(added_text)
synonyms = parse_synonyms(synonym_text)
# Upsert fruit — get id back for child inserts
if created_at:
cur.execute(
"""
INSERT INTO fruits (name, osdb_number, fruit_type, created_at, updated_at)
VALUES (%s, %s, %s, %s, NOW())
ON CONFLICT (osdb_number) DO UPDATE
SET name = EXCLUDED.name,
fruit_type = EXCLUDED.fruit_type,
comment = fruits.comment,
updated_at = NOW()
RETURNING id
""",
(name, osdb_number, fruit_type, created_at),
)
else:
cur.execute(
"""
INSERT INTO fruits (name, osdb_number, fruit_type, updated_at)
VALUES (%s, %s, %s, NOW())
ON CONFLICT (osdb_number) DO UPDATE
SET name = EXCLUDED.name,
fruit_type = EXCLUDED.fruit_type,
comment = fruits.comment,
updated_at = NOW()
RETURNING id
""",
(name, osdb_number, fruit_type),
)
fruit_id = cur.fetchone()[0]
counts["fruits"] += 1
# Idempotent: delete existing synonyms and images
cur.execute("DELETE FROM fruit_synonyms WHERE fruit_id = %s", (fruit_id,))
cur.execute("DELETE FROM fruit_images WHERE fruit_id = %s", (fruit_id,))
# Insert synonyms
for syn in synonyms:
cur.execute(
"INSERT INTO fruit_synonyms (fruit_id, synonym) VALUES (%s, %s)",
(fruit_id, syn),
)
counts["synonyms"] += 1
# Insert images
for img in find_images(osdb_number, data_dir):
cur.execute(
"""
INSERT INTO fruit_images (fruit_id, filename, data, image_type, created_at)
VALUES (%s, %s, %s, %s, NOW())
""",
(fruit_id, img["filename"], psycopg2.Binary(img["data"]), img["image_type"]),
)
counts["images"][img["image_type"]] += 1
conn.commit()
for w in warnings[:20]:
print(f" WARNING: {w}", file=sys.stderr)
if len(warnings) > 20:
print(f" ... and {len(warnings) - 20} more warnings", file=sys.stderr)
return counts
def main():
database_url = os.environ.get("DATABASE_URL")
if not database_url:
print("Error: DATABASE_URL environment variable not set", file=sys.stderr)
sys.exit(1)
print("Connecting to database...")
conn = psycopg2.connect(database_url)
try:
print("Importing fruits...")
counts = import_fruits(conn)
total_images = sum(counts["images"].values())
print(f"\nDone.")
print(f" Fruits upserted: {counts['fruits']}")
print(f" Synonyms inserted: {counts['synonyms']}")
print(f" Images inserted: {total_images}")
for img_type, n in counts["images"].items():
print(f" {img_type}: {n}")
print(f" Warnings: {counts['warnings']}")
print(f" Skipped: {counts['skipped']}")
except Exception as e:
print(f"Error: {e}", file=sys.stderr)
conn.rollback()
sys.exit(1)
finally:
conn.close()
if __name__ == "__main__":
main()
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@@ -0,0 +1,193 @@
import os
import shutil
import tempfile
import unittest
from datetime import date
from import_fruits import map_typ, parse_synonyms, parse_date, find_images
class TestMapTyp(unittest.TestCase):
def test_maps_a_to_apfelsorten(self):
self.assertEqual(map_typ("a"), "Apfelsorten")
def test_maps_b_to_birnensorten(self):
self.assertEqual(map_typ("b"), "Birnensorten")
def test_maps_bq_aggregate_to_birnensorten(self):
self.assertEqual(map_typ("bq"), "Birnensorten")
def test_maps_q_to_quittensorten(self):
self.assertEqual(map_typ("q"), "Quittensorten")
def test_maps_apr_to_aprikosen(self):
self.assertEqual(map_typ("apr"), "Aprikosen")
def test_maps_aprpfi_aggregate_to_aprikosen(self):
self.assertEqual(map_typ("aprpfi"), "Aprikosen")
def test_maps_pfi_to_pfirsiche(self):
self.assertEqual(map_typ("pfi"), "Pfirsiche")
def test_maps_p_to_pfirsiche(self):
self.assertEqual(map_typ("p"), "Pfirsiche")
def test_maps_mir_to_mirabellen(self):
self.assertEqual(map_typ("mir"), "Mirabellen")
def test_maps_mirren_aggregate_to_mirabellen(self):
self.assertEqual(map_typ("mirren"), "Mirabellen")
def test_maps_ren_to_renekloden(self):
self.assertEqual(map_typ("ren"), "Renekloden")
def test_maps_pfl_to_pflaumen(self):
self.assertEqual(map_typ("pfl"), "Pflaumen")
def test_maps_pflzwe_aggregate_to_pflaumen(self):
self.assertEqual(map_typ("pflzwe"), "Pflaumen")
def test_maps_zwe_to_zwetschen(self):
self.assertEqual(map_typ("zwe"), "Zwetschen")
def test_maps_k_aggregate_to_sauerkirschen(self):
self.assertEqual(map_typ("k"), "Sauerkirschen")
def test_maps_bo_aggregate_to_brombeeren(self):
self.assertEqual(map_typ("bo"), "Brombeeren")
def test_maps_bob_to_brombeeren(self):
self.assertEqual(map_typ("bob"), "Brombeeren")
def test_maps_boe_to_erdbeeren(self):
self.assertEqual(map_typ("boe"), "Erdbeeren")
def test_maps_boh_to_himbeeren(self):
self.assertEqual(map_typ("boh"), "Himbeeren")
def test_maps_boj_to_johannisbeeren(self):
self.assertEqual(map_typ("boj"), "Johannisbeeren")
def test_maps_bos_to_stachelbeeren(self):
self.assertEqual(map_typ("bos"), "Stachelbeeren")
def test_maps_wei_to_wein(self):
self.assertEqual(map_typ("wei"), "Wein")
def test_maps_w_to_wein(self):
self.assertEqual(map_typ("w"), "Wein")
def test_maps_x_aggregate_to_apfelsorten(self):
self.assertEqual(map_typ("x"), "Apfelsorten")
def test_returns_none_for_unknown_typ(self):
self.assertIsNone(map_typ("zzz"))
class TestParseSynonyms(unittest.TestCase):
def test_splits_by_comma(self):
self.assertEqual(parse_synonyms("Boskop, Boskoop"), ["Boskop", "Boskoop"])
def test_strips_whitespace_and_newlines(self):
result = parse_synonyms("\nBoskop Renette [IH.1],\nBoskoop\n")
self.assertEqual(result, ["Boskop Renette [IH.1]", "Boskoop"])
def test_filters_empty_parts(self):
self.assertEqual(parse_synonyms(" , , Boskop ,"), ["Boskop"])
def test_empty_string_returns_empty_list(self):
self.assertEqual(parse_synonyms(""), [])
def test_single_synonym_no_comma(self):
self.assertEqual(parse_synonyms("White Paradise"), ["White Paradise"])
def test_none_returns_empty_list(self):
self.assertEqual(parse_synonyms(None), [])
class TestParseDate(unittest.TestCase):
def test_parses_yyyymmdd(self):
self.assertEqual(parse_date("20070806"), date(2007, 8, 6))
def test_empty_string_returns_none(self):
self.assertIsNone(parse_date(""))
def test_none_returns_none(self):
self.assertIsNone(parse_date(None))
def test_invalid_format_returns_none(self):
self.assertIsNone(parse_date("not-a-date"))
class TestFindImages(unittest.TestCase):
def setUp(self):
self.tmpdir = tempfile.mkdtemp()
self.ef_dir = os.path.join(self.tmpdir, "einzelfruechte")
self.bl_dir = os.path.join(self.tmpdir, "blueten")
self.bau_dir = os.path.join(self.tmpdir, "baume")
for d in (self.ef_dir, self.bl_dir, self.bau_dir):
os.makedirs(d)
def tearDown(self):
shutil.rmtree(self.tmpdir, ignore_errors=True)
def _touch(self, path, content=b"img"):
with open(path, "wb") as f:
f.write(content)
def test_finds_fruit_image(self):
self._touch(os.path.join(self.ef_dir, "adams_apfel_ef_s0.jpg"))
imgs = find_images("adams_apfel", self.tmpdir)
types = [i["image_type"] for i in imgs]
self.assertIn("fruit", types)
def test_finds_flower_image(self):
self._touch(os.path.join(self.bl_dir, "adams_apfel_frucht_s0.jpg"))
imgs = find_images("adams_apfel", self.tmpdir)
types = [i["image_type"] for i in imgs]
self.assertIn("flower", types)
def test_finds_tree_image(self):
self._touch(os.path.join(self.bau_dir, "adams_apfel_bau_s0.jpg"))
imgs = find_images("adams_apfel", self.tmpdir)
types = [i["image_type"] for i in imgs]
self.assertIn("tree", types)
def test_skips_tn_files_but_finds_s0(self):
# _tn file must be excluded; _s0 file must be included (positive control)
self._touch(os.path.join(self.ef_dir, "adams_apfel_ef_tn.jpg"))
self._touch(os.path.join(self.ef_dir, "adams_apfel_ef_s0.jpg"))
imgs = find_images("adams_apfel", self.tmpdir)
self.assertEqual(len(imgs), 1)
self.assertEqual(imgs[0]["filename"], "adams_apfel_ef_s0.jpg")
def test_returns_empty_when_no_match(self):
imgs = find_images("unknown_fruit", self.tmpdir)
self.assertEqual(imgs, [])
def test_image_contains_bytes_and_filename(self):
content = b"\x89PNG\r\n"
self._touch(os.path.join(self.ef_dir, "adams_apfel_ef_s0.jpg"), content)
imgs = find_images("adams_apfel", self.tmpdir)
self.assertEqual(len(imgs), 1)
self.assertEqual(imgs[0]["data"], content)
self.assertEqual(imgs[0]["filename"], "adams_apfel_ef_s0.jpg")
def test_finds_all_three_types(self):
self._touch(os.path.join(self.ef_dir, "abbe_fetel_ef_s0.jpg"))
self._touch(os.path.join(self.bl_dir, "abbe_fetel_frucht_s0.jpg"))
self._touch(os.path.join(self.bau_dir, "abbe_fetel_bau_s0.jpg"))
imgs = find_images("abbe_fetel", self.tmpdir)
self.assertEqual(len(imgs), 3)
def test_does_not_steal_images_from_fruit_with_longer_id(self):
# "mitschurins" must not match "mitschurins_fruchtbare_nda_s0.jpg"
self._touch(os.path.join(self.ef_dir, "mitschurins_ef_s0.jpg"))
self._touch(os.path.join(self.ef_dir, "mitschurins_fruchtbare_ef_s0.jpg"))
imgs = find_images("mitschurins", self.tmpdir)
self.assertEqual(len(imgs), 1)
self.assertEqual(imgs[0]["filename"], "mitschurins_ef_s0.jpg")
if __name__ == "__main__":
unittest.main()