1196de6e88
Flask backend with Vue 3 frontend for shop floor machine management. Includes database schema export for MySQL shopdb_flask database. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
44 lines
1.0 KiB
Python
44 lines
1.0 KiB
Python
"""Pagination utilities."""
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from flask import request, current_app
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from typing import Tuple
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def get_pagination_params(req=None) -> Tuple[int, int]:
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"""
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Extract pagination parameters from request.
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Returns:
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Tuple of (page, per_page)
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"""
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if req is None:
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req = request
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default_size = current_app.config.get('DEFAULT_PAGE_SIZE', 20)
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max_size = current_app.config.get('MAX_PAGE_SIZE', 100)
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try:
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page = max(1, int(req.args.get('page', 1)))
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except (TypeError, ValueError):
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page = 1
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try:
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per_page = int(req.args.get('per_page', default_size))
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per_page = max(1, min(per_page, max_size))
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except (TypeError, ValueError):
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per_page = default_size
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return page, per_page
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def paginate_query(query, page: int, per_page: int):
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"""
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Apply pagination to a SQLAlchemy query.
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Returns:
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Tuple of (items, total)
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"""
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total = query.count()
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items = query.offset((page - 1) * per_page).limit(per_page).all()
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return items, total
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