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fix(export): render PDF in A4 landscape for 7-column readability

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Add @page { size: A4 landscape } to _CSS, reduce font-size to 11px,
and set table-layout: fixed + word-break: break-word so 7 columns
fit without overflow. Unit test asserts the landscape rule is present
in the rendered HTML.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Knacky
2026-06-09 18:13:46 +02:00
parent 2d1c113f0c
commit e41679b331
3 changed files with 16 additions and 5 deletions
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11
backend/app/services/export.py
View File

@@ -198,11 +198,12 @@ def render_engagement_csv(
# ---------------------------------------------------------------------------
_CSS = """
body { font-family: sans-serif; font-size: 13px; color: #1a1a1a; margin: 40px; }
h1 { font-size: 22px; border-bottom: 2px solid #333; padding-bottom: 6px; }
h2 { font-size: 17px; margin-top: 32px; color: #333; }
table { border-collapse: collapse; width: 100%; margin-bottom: 12px; }
th, td { border: 1px solid #ccc; padding: 4px 8px; text-align: left; vertical-align: top; white-space: pre-wrap; }
@page { size: A4 landscape; margin: 20mm; }
body { font-family: sans-serif; font-size: 11px; color: #1a1a1a; margin: 0; }
h1 { font-size: 20px; border-bottom: 2px solid #333; padding-bottom: 6px; }
h2 { font-size: 15px; margin-top: 32px; color: #333; }
table { border-collapse: collapse; width: 100%; margin-bottom: 12px; table-layout: fixed; }
th, td { border: 1px solid #ccc; padding: 3px 6px; text-align: left; vertical-align: top; white-space: pre-wrap; word-break: break-word; }
th { background: #e0e0e0; }
.meta { color: #555; margin-bottom: 16px; }
"""

9
backend/tests/test_export_render.py
View File

@@ -291,6 +291,15 @@ def test_render_engagement_pdf_contains_simulation_table(app) -> None:
assert header in html, f"Expected French header '{header}' in HTML"
def test_render_engagement_html_has_landscape_page_rule(app) -> None:
from backend.app.services.export import _render_engagement_html
with app.app_context():
eng = _make_engagement()
html = _render_engagement_html(eng, [])
assert "landscape" in html, "HTML must include A4 landscape @page rule for PDF output"
# ---------------------------------------------------------------------------
# Defense-in-depth: filename header injection
# ---------------------------------------------------------------------------