29 lines
828 B
Ruby
29 lines
828 B
Ruby
## This helper be included in applicationHelper
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module CoursesHelper
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# 返回学生数量，即roles表中定义的Reporter， 返回结果 -1 为查询失败
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def studentCount project
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searchCountByRoles project, 5
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end
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# 返回教师数量，即roles表中定义的Manager， 返回结果 -1 为查询失败
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def teacherCount project
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searchCountByRoles project, 3
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end
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# 返回TA数量，即roles表中定义的TA， 返回结果 -1 为查询失败
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def teacherAssistantCount project
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searchCountByRoles project, 7
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end
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# 根据角色查询
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def searchCountByRoles project, roles_id
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count = -1
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begin
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count = project.members.joins(:member_roles).where("member_roles.role_id = :role_id", {:role_id => roles_id }).count
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rescue Exception => e
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logger.error "[CoursesHelper] ===> #{e}"
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end
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count
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end
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end
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