Conflicts:
	db/schema.rb
This commit is contained in:
sw 2014-12-29 17:00:35 +08:00
commit 05b9b26314
12 changed files with 309 additions and 171 deletions

View File

@ -759,6 +759,18 @@ class ApplicationController < ActionController::Base
end
end
def paginateHelper_for_members obj, pre_size=10
@obj_count = StudentsForCourse.find_by_sql("select count(id) as mem_count from students_for_courses where course_id = #{@course.id}")[0][:mem_count].to_s.to_i
@obj_pages = Paginator.new @obj_count, pre_size, params['page']
if obj.kind_of? ActiveRecord::Base or obj.kind_of? ActiveRecord::Relation
obj.limit(@obj_pages.per_page).offset(0)
elsif obj.kind_of? Array
obj[0, @obj_pages.per_page]
else
logger.error "[ApplicationController] Error : application_controller#paginateHelper ===> unknow category: #{obj.class}"
raise RuntimeError, 'unknow type, Please input you type into this helper.'
end
end
#查找首页相关信息
def find_first_page

View File

@ -23,7 +23,7 @@ class CoursesController < ApplicationController
before_filter :require_login, :only => [:join, :unjoin]
#before_filter :allow_join, :only => [:join]
@@result = nil
def join
if User.current.logged?
course = Course.find_by_id params[:object_id]
@ -213,12 +213,13 @@ class CoursesController < ApplicationController
q = "#{params[:name].strip}"
#(redirect_to stores_url, :notice => l(:label_sumbit_empty);return) if params[:name].blank?
if params[:incourse]
@results = searchmember_by_name(student_homework_score, q)
@results = searchmember_by_name(student_homework_score(0,0,0), q)
elsif params[:ingroup]
@group = CourseGroup.find(params[:search_group_id])
@results =searchgroupmember_by_name(student_homework_score, @group, q)
@results = searchmember_by_name(student_homework_score(@group.id,0,0), q)
end
@is_remote = true
@result_count = @results.count
@results = paginateHelper @results
@ -287,7 +288,7 @@ class CoursesController < ApplicationController
@group = group
@course_groups = @course.course_groups
@membercount = @members.count
search_group_members group
end
def unjoin_group
@ -299,7 +300,6 @@ class CoursesController < ApplicationController
@group = group
@course_groups = @course.course_groups
@membercount = @members.count
search_group_members group
end
def searchgroupmembers
@ -309,15 +309,19 @@ class CoursesController < ApplicationController
@is_remote = true
if params[:group_id] && params[:group_id] != "0"
@group = CourseGroup.find(params[:group_id])
@results = student_homework_score.find_all {|mem| mem.course_group_id == group.id}
else
@results = student_homework_score
end
@@result = @results
@members = searchStudent(@course)
@membercount = @members.count
@results = paginateHelper @results
@results = student_homework_score(@group.id,0, 0)
@results = paginateHelper @results, 10
else
page_from = params[:page].nil? ? 0 : (params[:page].to_i - 1)
@results = student_homework_score(0,page_from, 10)
@results = paginateHelper_for_members @results, 10
end
end
@ -325,30 +329,36 @@ class CoursesController < ApplicationController
## 有角色参数的才是课程,没有的就是项目
if (User.current.admin? || @course.is_public == 1 || (@course.is_public == 0 && User.current.member_of_course?(@course)))
@render_file = 'member_list'
@teachers= searchTeacherAndAssistant(@course)
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@role = params[:role]
@role = params[:role].nil? ? '2':params[:role]
@is_remote = true
@course_groups = @course.course_groups if @course.course_groups
@show_serch = params[:role] == '2'
case params[:role]
case @role
when '1'
@subPage_title = l :label_teacher_list
@members = @teachers
@members = searchTeacherAndAssistant(@course)
@members = paginateHelper @members, 10
when '2'
@subPage_title = l :label_student_list
@members = student_homework_score
page = params[:page].nil? ? 0 : (params['page'].to_i - 1)
@members = student_homework_score(0,page, 10)
@members = paginateHelper_for_members @members, 10
# @member_scores = @@member_scores
# @members = searchStudent_sort(@course, 'desc', @@member_scores)
@membercount = @members.count
else
@subPage_title = ''
@members = @course.member_principals.includes(:roles, :principal).all.sort
end
@@result = @members
@members = paginateHelper @members
render :layout => 'base_courses'
respond_to do |format|
if params[:page]
format.js
else
format.html {render :layout => 'base_courses'}
end
end
# render :layout => 'base_courses'
else
render_403
end
@ -356,19 +366,19 @@ class CoursesController < ApplicationController
end
def member_score_sort
@teachers= searchTeacherAndAssistant(@course)
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@role = params[:role]
@course_groups = @course.course_groups if @course.course_groups
@show_serch = params[:role] == '2'
@subPage_title = l :label_student_list
@render_file = 'member_list'
unless @@result.nil?
@results = @@result.reverse
@@result = @results
end
@results = paginateHelper @results
# @teachers= searchTeacherAndAssistant(@course)
# @canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
# @role = params[:role]
# @course_groups = @course.course_groups if @course.course_groups
# @show_serch = params[:role] == '2'
# @subPage_title = l :label_student_list
# @render_file = 'member_list'
# @results = params[:result] if params[:result]
# unless @result.nil?
# @results = @result.reverse
#
# end
# @results = paginateHelper @results
end
# 显示每个学生的作业评分详情
def show_member_score
@ -377,19 +387,11 @@ class CoursesController < ApplicationController
respond_to do |format|
format.html {render :layout => 'course_base'}
format.js
end
end
#判断指定用户是否为课程教师
def isCourseTeacher(id)
result = false
if @teachers.find_by_user_id(id) != nil
result = true
end
result
end
def handle_course courses, activities
course_activity_count_array=activities.values()
@ -880,11 +882,13 @@ class CoursesController < ApplicationController
end
end
def student_homework_score
def student_homework_score(groupid,start_from, nums)
#teachers = find_course_teachers(@course)
start_from = start_from * nums
sql = ActiveRecord::Base.connection()
homework_scores = Member.find_by_sql("call member_score(#{@course.id},#{groupid},#{start_from},#{nums})")
homework_scores = Member.find_by_sql("call member_score(#{@course.id})")
sql.close()
homework_scores
end
@ -900,10 +904,10 @@ class CoursesController < ApplicationController
@canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
@is_remote = true
@members = searchStudent(@course)
@membercount = @members.count
@results = student_homework_score.find_all {|mem| mem.course_group_id == group.id}
@@result = @results
@results = paginateHelper @results
page_from = params[:page].nil? ? 0 : (params[:page].to_i - 1)
@results = student_homework_score(group.id,0,0)
@results = paginateHelper @results, 10
end
end

View File

@ -129,7 +129,7 @@ class MembersController < ApplicationController
member = Member.new(:role_ids => params[:membership][:role_ids], :user_id => user_id)
role = Role.find_by_id(params[:membership][:role_ids])
# 这里的判断只能通过角色名,可以弄成常量
if role.name == "学生"
if role.name == "学生" || role.name == "Student"
StudentsForCourse.create(:student_id => user_id, :course_id =>@course.id)
end
members << member
@ -210,7 +210,7 @@ class MembersController < ApplicationController
if (params[:membership][:role_ids])
role = Role.find(params[:membership][:role_ids][0])
# 这里的判断只能通过角色名,可以弄成常量
if role.name == "学生"
if role.name == "学生" || role.name == "Student"
StudentsForCourse.create(:student_id => @member.user_id, :course_id =>@course.id)
else
joined = StudentsForCourse.where('student_id = ? and course_id = ?', @member.user_id,@course.id)

View File

@ -173,6 +173,7 @@ class Query < ActiveRecord::Base
:string => [ "=", "~", "!", "!~", "!*", "*" ],
:text => [ "~", "!~", "!*", "*" ],
:integer => [ "=", ">=", "<=", "><", "!*", "*" ],
:integer_done => [ "=", ">=", "<=", "><", "!*", "*" ],
:float => [ "=", ">=", "<=", "><", "!*", "*" ],
:relation => ["=", "=p", "=!p", "!p", "!*", "*"]
}
@ -217,6 +218,8 @@ class Query < ActiveRecord::Base
case type_for(field)
when :integer
add_filter_error(field, :invalid) if values_for(field).detect {|v| v.present? && !v.match(/^[+-]?\d+$/) }
when :integer_done
add_filter_error(field, :invalid) if values_for(field).detect {|v| v.present? && !v.match(/^[+-]?\d+$/) || (v.match(/^[+-]?\d+$/) && (v.to_i<0 || v.to_i> 100)) }
when :float
add_filter_error(field, :invalid) if values_for(field).detect {|v| v.present? && !v.match(/^[+-]?\d+(\.\d*)?$/) }
when :date, :date_past
@ -602,6 +605,12 @@ class Query < ActiveRecord::Base
else
sql = "#{db_table}.#{db_field} = #{value.first.to_i}"
end
when :integer_done
if is_custom_filter
sql = "(#{db_table}.#{db_field} <> '' AND CAST(CASE #{db_table}.#{db_field} WHEN '' THEN '0' ELSE #{db_table}.#{db_field} END AS decimal(30,3)) = #{value.first.to_i})"
else
sql = "#{db_table}.#{db_field} = #{value.first.to_i}"
end
when :float
if is_custom_filter
sql = "(#{db_table}.#{db_field} <> '' AND CAST(CASE #{db_table}.#{db_field} WHEN '' THEN '0' ELSE #{db_table}.#{db_field} END AS decimal(30,3)) BETWEEN #{value.first.to_f - 1e-5} AND #{value.first.to_f + 1e-5})"

View File

@ -62,6 +62,11 @@
:is_student_batch_homework => @is_student_batch_homework}%>
</div>
</div>
<% if @is_teacher %>
<!--<div>
导出 <a>csv</a>
</div>-->
<% end %>
</div>
<div id="show_homework_attach_model"></div>
</body>

View File

@ -3,9 +3,11 @@
var classname = document.getElementById(id).className
if(classname == 'st_up') {
document.getElementById(id).className = 'st_down'
}
else
document.getElementById(id).className = 'st_up'
}
</script>
<div style="margin-left: 15px" xmlns="http://www.w3.org/1999/html" xmlns="http://www.w3.org/1999/html">
@ -34,7 +36,7 @@
<div class="st_box">
<ul class="st_box_top" style="margin-left: 17px;">
<% if @subPage_title == l(:label_student_list) %>
<li class="ml358"><%= link_to '作业积分', member_score_sort_course_path ,method: 'get', remote: true, :onclick => "change_pic('pic')"%>
<li class="ml358"><%= link_to '作业积分', member_score_sort_course_path ,:result => members,method: 'get', remote: true, :onclick => "change_pic('pic')"%>
<a id="pic" href="#" class="st_down"></a>
</li>
<li class="ml50">
@ -101,7 +103,7 @@
</div>
</div>
<div class="pagination">
<%= pagination_links_full @obj_pages, @obj_count, :remote =>true, :per_page_links => false %>
<%= pagination_links_full @obj_pages, @obj_count,:per_page_links => false, :remote =>@is_remote %>
</div>
<% else %>
<p class="nodata">

View File

@ -0,0 +1,11 @@
<% if @subPage_title && @subPage_title == l(:label_student_list)%>
<%= form_tag( searchmembers_course_path(@course), method: 'get',:class => "f_l",:style => "margin-left: 5px; ",:remote=>true) do %>
<%= text_field_tag 'name', params[:name], name: "name", :class => 'f_1', :style => "height:15px; float: left;"%>
<% if @group %>
<%= hidden_field "search_group_id", params[:search_group_id],:value => "#{@group.id}", name: 'search_group_id' %>
<%= submit_tag l(:label_search_member), :name => "ingroup",:class => "f_2", :style => "float: left "%>
<% else %>
<%= submit_tag l(:label_search_member),:style => "float: left", :name => 'incourse',:onclick => "checkclass('group_name_0')",:class => "f_2"%>
<% end %>
<% end %>
<% end %>

View File

@ -57,20 +57,10 @@
<%= stylesheet_link_tag 'course_group', :media => 'all' %>
<script type="text/javascript" src="javascripts/jquery-1.8.3-ui-1.9.2-ujs-2.0.3.js"></script>
<div class="st_list">
<div class="st_search" style="margin-left: 14px">
<div class="st_search" style="margin-left: 14px" >
<span class="f_l"><%= @subPage_title %></span>
<span>
<% if @subPage_title && @subPage_title == l(:label_student_list)%>
<%= form_tag( searchmembers_course_path(@course), method: 'get',:class => "f_l",:style => "margin-left: 5px; ",:remote=>true) do %>
<%= text_field_tag 'name', params[:name], name: "name", :class => 'f_1', :style => "height:15px; float: left;"%>
<% if @group %>
<%= hidden_field "search_group_id", params[:search_group_id],:value => "#{@group.id}", name: 'search_group_id' %>
<%= submit_tag l(:label_search_member), :name => "ingroup",:class => "f_2", :style => "float: left "%>
<% else %>
<%= submit_tag l(:label_search_member),:style => "float: left", :name => 'incourse',:onclick => "checkclass('group_name_0')",:class => "f_2"%>
<% end %>
<% end %>
<% end %>
<span id = "search_members">
<%= render :partial => 'searchmembers' %>
</span>
</div>
<div class="cl"></div>

View File

@ -0,0 +1 @@
$("#member_content").html("<%= escape_javascript( render :partial => @render_file, :locals => {:members => @members})%>");

View File

@ -1,4 +1,5 @@
/**
* Created by Administrator on 2014/12/3.
*/
$("#search_members").html("<%= escape_javascript( render :partial => 'searchmembers')%>");
$("#member_content").html("<%= escape_javascript( render :partial => @render_file, :locals => {:members => @results})%>");

View File

@ -1,97 +1,100 @@
DELIMITER $$
CREATE
/*[DEFINER = { user | CURRENT_USER }]*/
PROCEDURE `member_score`(IN courseid INT)
/*LANGUAGE SQL
| [NOT] DETERMINISTIC
| { CONTAINS SQL | NO SQL | READS SQL DATA | MODIFIES SQL DATA }
| SQL SECURITY { DEFINER | INVOKER }
| COMMENT 'string'*/
BEGIN
CREATE TEMPORARY TABLE IF NOT EXISTS course_teachers (
id INT
);
TRUNCATE TABLE course_teachers;
CREATE TEMPORARY TABLE IF NOT EXISTS mems (
id INT ,
user_id INT,
course_id INT,
created_on DATETIME,
course_group_id INT,
score FLOAT DEFAULT 0
);
TRUNCATE TABLE mems;
CREATE TEMPORARY TABLE IF NOT EXISTS mem_home (
id INT,
user_id INT,
course_id INT,
created_on DATETIME,
course_group_id INT,
home_id INT,
score FLOAT DEFAULT 0
);
TRUNCATE TABLE mem_home;
CREATE TEMPORARY TABLE IF NOT EXISTS t_scores (
home_id INT,
score FLOAT
);
TRUNCATE TABLE t_scores;
CREATE TEMPORARY TABLE IF NOT EXISTS s_scores (
home_id INT,
score FLOAT
);
TRUNCATE TABLE s_scores;
CREATE TEMPORARY TABLE IF NOT EXISTS scores (
user_id INT,
score FLOAT
);
TRUNCATE TABLE scores;
INSERT INTO course_teachers (SELECT members.user_id FROM members WHERE members.user_id NOT IN (SELECT student_id FROM students_for_courses WHERE course_id = courseid));
#查出所有的学生
INSERT INTO mems (id, user_id, course_id, created_on, course_group_id)
(SELECT members.id, members.user_id, members.course_id, members.created_on, members.course_group_id
FROM members WHERE course_id = courseid AND members.user_id NOT IN (SELECT id FROM course_teachers));
# 查出所有的学生列表及其作业
INSERT INTO mem_home (id, user_id, course_id, created_on, course_group_id,home_id)
(SELECT members.id, members.user_id, members.course_id, members.created_on, members.course_group_id, homework_attaches.id
FROM members, homework_attaches WHERE course_id = courseid
AND members.user_id = homework_attaches.user_id AND members.user_id NOT IN (SELECT id FROM course_teachers)
AND homework_attaches.bid_id IN (SELECT bid_id FROM homework_for_courses WHERE course_id = courseid ));
INSERT INTO t_scores (home_id, score) (SELECT rateable_id,AVG(seems_rateable_rates.stars)
FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id IN (SELECT mem_home.home_id FROM mem_home)
AND rater_id IN (SELECT id FROM course_teachers)
GROUP BY rateable_id);
INSERT INTO s_scores (home_id, score) (SELECT rateable_id,AVG(seems_rateable_rates.stars)
FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id IN (SELECT mem_home.home_id FROM mem_home)
AND rater_id NOT IN (SELECT id FROM course_teachers)
GROUP BY rateable_id) ;
UPDATE mem_home, t_scores SET mem_home.score = t_scores.score WHERE mem_home.home_id = t_scores.home_id ;
UPDATE mem_home, s_scores SET mem_home.score = s_scores.score WHERE mem_home.home_id = s_scores.home_id AND mem_home.score = 0;
INSERT INTO scores (user_id, score) (SELECT user_id, SUM(score) FROM mem_home GROUP BY user_id);
UPDATE mems, scores SET mems.score = scores.score WHERE mems.user_id = scores.user_id;
SELECT * FROM mems ORDER BY score DESC;
END$$
DELIMITER ;
#encoding=UTF-8
class SelectMemberScore < ActiveRecord::Migration
def up
sql = ("
CREATE
PROCEDURE `member_score`(IN courseid INT)
BEGIN
CREATE TEMPORARY TABLE IF NOT EXISTS course_teachers (
id INT
);
TRUNCATE TABLE course_teachers;
CREATE TEMPORARY TABLE IF NOT EXISTS mems (
id INT ,
user_id INT,
course_id INT,
created_on DATETIME,
course_group_id INT,
score FLOAT DEFAULT 0
);
TRUNCATE TABLE mems;
CREATE TEMPORARY TABLE IF NOT EXISTS mem_home (
id INT,
user_id INT,
course_id INT,
created_on DATETIME,
course_group_id INT,
home_id INT,
score FLOAT DEFAULT 0
);
TRUNCATE TABLE mem_home;
CREATE TEMPORARY TABLE IF NOT EXISTS t_scores (
home_id INT,
score FLOAT
);
TRUNCATE TABLE t_scores;
CREATE TEMPORARY TABLE IF NOT EXISTS s_scores (
home_id INT,
score FLOAT
);
TRUNCATE TABLE s_scores;
CREATE TEMPORARY TABLE IF NOT EXISTS scores (
user_id INT,
score FLOAT
);
TRUNCATE TABLE scores;
INSERT INTO course_teachers (SELECT members.user_id FROM members WHERE members.user_id NOT IN (SELECT student_id FROM students_for_courses WHERE course_id = courseid));
INSERT INTO mems (id, user_id, course_id, created_on, course_group_id)
(SELECT members.id, members.user_id, members.course_id, members.created_on, members.course_group_id
FROM members WHERE course_id = courseid AND members.user_id NOT IN (SELECT id FROM course_teachers));
INSERT INTO mem_home (id, user_id, course_id, created_on, course_group_id,home_id)
(SELECT members.id, members.user_id, members.course_id, members.created_on, members.course_group_id, homework_attaches.id
FROM members, homework_attaches WHERE course_id = courseid
AND members.user_id = homework_attaches.user_id AND members.user_id NOT IN (SELECT id FROM course_teachers)
AND homework_attaches.bid_id IN (SELECT bid_id FROM homework_for_courses WHERE course_id = courseid ));
INSERT INTO t_scores (home_id, score) (SELECT rateable_id,AVG(seems_rateable_rates.stars)
FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id IN (SELECT mem_home.home_id FROM mem_home)
AND rater_id IN (SELECT id FROM course_teachers)
GROUP BY rateable_id);
INSERT INTO s_scores (home_id, score) (SELECT rateable_id,AVG(seems_rateable_rates.stars)
FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id IN (SELECT mem_home.home_id FROM mem_home)
AND rater_id NOT IN (SELECT id FROM course_teachers)
GROUP BY rateable_id) ;
UPDATE mem_home, t_scores SET mem_home.score = t_scores.score WHERE mem_home.home_id = t_scores.home_id ;
UPDATE mem_home, s_scores SET mem_home.score = s_scores.score WHERE mem_home.home_id = s_scores.home_id AND mem_home.score = 0;
INSERT INTO scores (user_id, score) (SELECT user_id, SUM(score) FROM mem_home GROUP BY user_id);
UPDATE mems, scores SET mems.score = scores.score WHERE mems.user_id = scores.user_id;
SELECT * FROM mems ORDER BY score DESC;
END;
")
execute(sql)
end
def down
end
end

View File

@ -0,0 +1,100 @@
class ProMemberScore < ActiveRecord::Migration
def up
sql_delete = ("DROP PROCEDURE IF EXISTS `member_score`;")
sql = ("
CREATE PROCEDURE `member_score`(IN courseid INT, IN groupid INT,IN start_from INT, IN nums INT)
BEGIN
CREATE TEMPORARY TABLE IF NOT EXISTS course_teachers (
id INT
);
TRUNCATE TABLE course_teachers;
CREATE TEMPORARY TABLE IF NOT EXISTS mems (
id INT ,
user_id INT,
course_id INT,
created_on DATETIME,
course_group_id INT,
score FLOAT DEFAULT 0
);
TRUNCATE TABLE mems;
CREATE TEMPORARY TABLE IF NOT EXISTS mem_home (
id INT,
user_id INT,
course_id INT,
created_on DATETIME,
course_group_id INT,
home_id INT,
score FLOAT DEFAULT 0
);
TRUNCATE TABLE mem_home;
CREATE TEMPORARY TABLE IF NOT EXISTS t_scores (
home_id INT,
score FLOAT
);
TRUNCATE TABLE t_scores;
CREATE TEMPORARY TABLE IF NOT EXISTS s_scores (
home_id INT,
score FLOAT
);
TRUNCATE TABLE s_scores;
CREATE TEMPORARY TABLE IF NOT EXISTS scores (
user_id INT,
score FLOAT
);
TRUNCATE TABLE scores;
INSERT INTO course_teachers (SELECT members.user_id FROM members WHERE members.user_id NOT IN (SELECT student_id FROM students_for_courses WHERE course_id = courseid));
INSERT INTO mems (id, user_id, course_id, created_on, course_group_id)
(SELECT members.id, members.user_id, members.course_id, members.created_on, members.course_group_id
FROM members WHERE course_id = courseid AND members.user_id NOT IN (SELECT id FROM course_teachers));
INSERT INTO mem_home (id, user_id, course_id, created_on, course_group_id,home_id)
(SELECT members.id, members.user_id, members.course_id, members.created_on, members.course_group_id, homework_attaches.id
FROM members, homework_attaches WHERE course_id = courseid
AND members.user_id = homework_attaches.user_id AND members.user_id NOT IN (SELECT id FROM course_teachers)
AND homework_attaches.bid_id IN (SELECT bid_id FROM homework_for_courses WHERE course_id = courseid ));
INSERT INTO t_scores (home_id, score) (SELECT rateable_id,AVG(seems_rateable_rates.stars)
FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id IN (SELECT mem_home.home_id FROM mem_home)
AND rater_id IN (SELECT id FROM course_teachers)
GROUP BY rateable_id);
INSERT INTO s_scores (home_id, score) (SELECT rateable_id,AVG(seems_rateable_rates.stars)
FROM seems_rateable_rates WHERE rateable_type = 'HomeworkAttach' AND rateable_id IN (SELECT mem_home.home_id FROM mem_home)
AND rater_id NOT IN (SELECT id FROM course_teachers)
GROUP BY rateable_id) ;
UPDATE mem_home, t_scores SET mem_home.score = t_scores.score WHERE mem_home.home_id = t_scores.home_id ;
UPDATE mem_home, s_scores SET mem_home.score = s_scores.score WHERE mem_home.home_id = s_scores.home_id AND mem_home.score = 0;
INSERT INTO scores (user_id, score) (SELECT user_id, SUM(score) FROM mem_home GROUP BY user_id);
UPDATE mems, scores SET mems.score = scores.score WHERE mems.user_id = scores.user_id;
IF nums <> 0 THEN
SELECT * FROM mems ORDER BY score DESC LIMIT start_from, nums;
ELSE
SELECT * FROM mems WHERE course_group_id = groupid ORDER BY score DESC;
END IF;
END;
")
execute(sql_delete)
execute(sql)
end
def down
end
end