80 lines
3.7 KiB
Python
80 lines
3.7 KiB
Python
from odoo import api, fields, models
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from odoo.tools import human_size
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import base64
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import os
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class CourseSyllabus(models.Model):
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_name = 'course.syllabus'
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_description = '教学大纲/教案'
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_rec_name = 'title'
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_order = 'course_id, syllabus_type, version desc'
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_inherit = ['mail.thread']
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title = fields.Char(string='标题', required=True)
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syllabus_type = fields.Selection([
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('syllabus', '教学大纲'),
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('lesson_plan', '教案'),
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], string='类型', required=True)
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course_id = fields.Many2one('learning.course', string='所属课程', required=True, ondelete='cascade')
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course_name = fields.Char(related="course_id.name", string="课程名称", readonly=True)
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course_code = fields.Char(related="course_id.code", string="课程代码", readonly=True)
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course_credit = fields.Float(related="course_id.credit", string="学分", readonly=True)
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course_exam_type = fields.Selection(related="course_id.exam_type", string="考核方式", readonly=True)
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chapter_id = fields.Many2one('course.chapter', string='关联章节')
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chapter_name = fields.Char(related="chapter_id.name", string="章节名称", readonly=True)
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chapter_sequence = fields.Integer(related="chapter_id.sequence", string="章节序号", readonly=True)
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chapter_is_published = fields.Boolean(related="chapter_id.is_published", string="发布状态", readonly=True)
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# 文件核心字段
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file = fields.Binary(string='文件', attachment=True, required=True)
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file_name = fields.Char(string='文件名')
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file_size = fields.Integer(string='文件大小(字节)', readonly=True)
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file_size_str = fields.Char(string='文件大小', readonly=True) # 友好显示：KB/MB
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file_suffix = fields.Char(string='文件格式', readonly=True) # 后缀：docx/pptx/pdf
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version = fields.Char(string='版本号', default='1.0')
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version_note = fields.Char(string='版本说明')
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publish_date = fields.Date(string='发布日期', default=fields.Date.today)
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is_published = fields.Boolean(string='是否发布', default=True)
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download_count = fields.Integer(string='下载次数', default=0)
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teaching_class_id = fields.Many2one(
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'course.teaching_class',
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string='教学班',
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ondelete='cascade',
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domain="[('course_id', '=', course_id)]"
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)
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# 监听文件上传，自动赋值文件名、大小、后缀
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@api.onchange('file', 'file_name')
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def _onchange_file_upload(self):
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for record in self:
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if record.file and record.file_name:
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# 计算文件大小（base64 换算）
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file_data = base64.b64decode(record.file)
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size_bytes = len(file_data)
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record.file_size = size_bytes
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record.file_size_str = human_size(size_bytes)
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# 提取文件后缀
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name, suffix = os.path.splitext(record.file_name)
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record.file_suffix = suffix.lower().strip('.')
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else:
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record.file_size = 0
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record.file_size_str = ''
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record.file_suffix = ''
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# 修复批量下载问题 + 优化下载响应
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def action_download(self):
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for rec in self:
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rec.download_count += 1
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if rec.file_name:
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# 携带真实文件名，浏览器正常识别
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url = f'/web/content/course.syllabus/{rec.id}/file/{rec.file_name}?download=true'
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else:
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url = f'/web/content/course.syllabus/{rec.id}/file?download=true'
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return {
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'type': 'ir.actions.act_url',
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'url': url,
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'target': 'self', # self 强制下载，new 新标签页打开
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} |