148 lines
5.5 KiB
Python
148 lines
5.5 KiB
Python
import markupsafe
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from odoo import fields, models, api
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from odoo.exceptions import ValidationError
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class VideoPlayback(models.Model):
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_name = 'yuthon.school.video'
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_description = '教学视频'
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_order = 'category_id, sequence, name'
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name = fields.Char(
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string='视频标题',
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required=True,
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help='如：Odoo 18 模块结构详解、Binary 字段用法等',
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)
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sequence = fields.Integer(
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string='排序',
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default=10,
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help='同一目录下的视频排序序号',
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)
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category_id = fields.Many2one(
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'yuthon.school.category',
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string='学习目录',
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ondelete='restrict',
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help='该视频所属的学习目录分类',
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)
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chapter_id = fields.Many2one(
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'yuthon.school.chapter',
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string='所属章节',
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ondelete='restrict',
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help='该视频所属的教材章节',
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)
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difficulty = fields.Selection(
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[('beginner', '入门'), ('intermediate', '进阶'), ('advanced', '高级')],
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string='难度等级',
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default='beginner',
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help='该视频的学习难度',
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)
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duration = fields.Char(
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string='视频时长',
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help='如：15:30 表示 15 分钟 30 秒',
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)
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video_file = fields.Binary(
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string='视频文件',
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attachment=True,
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required=True,
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help='上传本地教学视频（支持 MP4、WebM、OGG 等格式）',
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)
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video_filename = fields.Char(
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string='文件名',
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help='视频文件的原始文件名',
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)
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file_size_display = fields.Char(
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string='文件大小',
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compute='_compute_file_info',
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help='视频文件的大小',
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)
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description = fields.Text(
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string='视频简介',
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help='该教学视频的内容概要',
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)
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key_points = fields.Text(
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string='知识要点',
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help='该视频涵盖的关键知识点',
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)
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active = fields.Boolean(
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string='启用',
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default=True,
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)
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video_player = fields.Html(
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string='视频播放器',
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compute='_compute_video_player',
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sanitize=False,
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)
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@api.depends('video_file', 'video_filename')
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def _compute_file_info(self):
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"""计算文件大小，显示为可读格式"""
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for record in self:
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if record.video_file:
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encoded = record.video_file
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if isinstance(encoded, bytes):
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padding = 2 if encoded.endswith(b'==') else (1 if encoded.endswith(b'=') else 0)
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else:
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padding = 2 if encoded.endswith('==') else (1 if encoded.endswith('=') else 0)
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size = (len(encoded) * 3) // 4 - padding
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if size < 1024:
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record.file_size_display = f'{size} B'
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elif size < 1024 * 1024:
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record.file_size_display = f'{size / 1024:.1f} KB'
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elif size < 1024 * 1024 * 1024:
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record.file_size_display = f'{size / (1024 * 1024):.1f} MB'
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else:
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record.file_size_display = f'{size / (1024 * 1024 * 1024):.1f} GB'
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else:
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record.file_size_display = '0 B'
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@api.depends('video_file', 'video_filename')
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def _compute_video_player(self):
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"""生成视频播放器HTML"""
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mime_map = {
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'mp4': 'video/mp4',
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'webm': 'video/webm',
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'ogg': 'video/ogg',
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'ogv': 'video/ogg',
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'mov': 'video/quicktime',
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'mkv': 'video/x-matroska',
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'avi': 'video/x-msvideo',
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}
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for record in self:
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if record.video_file and record.id:
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mime_type = 'video/mp4'
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if record.video_filename:
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ext = record.video_filename.rsplit('.', 1)[-1].lower() if '.' in record.video_filename else ''
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mime_type = mime_map.get(ext, 'video/mp4')
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html = (
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'<div style="text-align: center; padding: 15px; '
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'background: #000; border-radius: 8px;">'
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'<video controls preload="metadata" '
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'style="width: 100%; max-width: 900px; border-radius: 4px;">'
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f'<source src="/yuthon_school/video/{record.id}" type="{mime_type}">'
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'<p style="color: #fff; padding: 20px;">'
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'您的浏览器不支持视频播放。</p>'
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'</video></div>'
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)
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record.video_player = markupsafe.Markup(html)
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else:
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record.video_player = markupsafe.Markup(
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'<div style="text-align: center; color: #999; '
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'padding: 30px; background: #f5f5f5; border-radius: 8px;">'
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'<p>请上传视频文件并保存后查看播放。</p></div>'
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)
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@api.constrains('video_filename')
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def _check_video_file(self):
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"""验证上传的文件是否为视频格式"""
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allowed_extensions = ['mp4', 'webm', 'ogg', 'ogv', 'mov', 'mkv', 'avi']
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for record in self:
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if record.video_filename:
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ext = record.video_filename.rsplit('.', 1)[-1].lower() if '.' in record.video_filename else ''
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if ext and ext not in allowed_extensions:
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raise ValidationError(
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f'请上传视频文件（支持格式：MP4、WebM、OGG、MOV、MKV、AVI），当前文件格式为 .{ext}'
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)
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