Golang Env.GroupByFilter方法代码示例

// AttendanceExplorer provides a page for exploring the attendance figures
// in more detail, and examine individual students.
func AttendanceExplorer(e env.Env) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		if redir := checkRedirect(e, w, r, 2); redir {
			return
		}

		header(e, w, r, 2)
		defer footer(e, w, r)

		f := getFilter(e, r)
		g, err := e.GroupByFilter(f)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
			return
		}

		week, _ := e.CurrentWeek()

		data := struct {
			Query template.URL
			Week  string
			Group group.Group
		}{
			template.URL(r.URL.RawQuery),
			week,
			g,
		}

		err = e.Templates.ExecuteTemplate(w, "attendance.tmpl", data)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
		}
	}
}

// AttainmentGroups produces a page with a summary of the
// attainment of each subgroup
func AttainmentGroups(e env.Env) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		if redir := checkRedirect(e, w, r, 1); redir {
			return
		}
		header(e, w, r, 1)
		defer footer(e, w, r)

		f := getFilter(e, r)
		g, err := e.GroupByFilter(f)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
			return
		}

		data := struct {
			Query  template.URL
			Groups []subGroup
		}{
			template.URL(r.URL.RawQuery),
			subGroups(g),
		}

		err = e.Templates.ExecuteTemplate(w, "attainmentgroups.tmpl", data)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
		}
	}
}

// EnglishAndMaths produces a summary page with the number/percentage
// of students achieving passes in English and/or Maths.
func EnglishAndMaths(e env.Env) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		if redir := checkRedirect(e, w, r, 2); redir {
			return
		}
		header(e, w, r, 2)
		defer footer(e, w, r)

		f := getFilter(e, r)
		g, err := e.GroupByFilter(f)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
			return
		}

		groups := []group.Group{{}, {}, {}, {}}
		for _, s := range g.Students {
			eng := s.EBaccArea("E").Achieved
			maths := s.EBaccArea("M").Achieved
			switch {
			case eng && maths:
				groups[2].Students = append(groups[2].Students, s)
			case eng:
				groups[0].Students = append(groups[0].Students, s)
			case maths:
				groups[1].Students = append(groups[1].Students, s)
			default:
				groups[3].Students = append(groups[3].Students, s)
			}
		}

		pcts := []float64{}
		for _, grp := range groups {
			pcts = append(pcts, float64(len(grp.Students))/float64(len(g.Students)))
		}

		data := struct {
			Query  template.URL
			Names  []string
			Groups []group.Group
			Pcts   []float64
		}{
			template.URL(r.URL.RawQuery),
			[]string{"English Only", "Mathematics Only", "English & Maths", "Neither"},
			groups,
			pcts,
		}

		err = e.Templates.ExecuteTemplate(w, "em.tmpl", data)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
		}
	}

}

// AttendanceGroups produces a page with attendance summaries for the
// various student groups.
func AttendanceGroups(e env.Env) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		if redir := checkRedirect(e, w, r, 0); redir {
			return
		}
		header(e, w, r, 0)
		defer footer(e, w, r)

		f := getFilter(e, r)
		g, err := e.GroupByFilter(f)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
			return
		}

		type YearGroup struct {
			Name   string
			Query  template.URL
			Groups []subGroup
			Matrix subGroupMatrix
		}

		// Ignore error - will appear as blank string anyway
		week, _ := e.CurrentWeek()

		data := struct {
			Week       string
			Query      template.URL
			YearGroups []YearGroup
		}{
			week,
			template.URL(r.URL.RawQuery),
			[]YearGroup{{"All Years", template.URL(""), subGroups(g), groupMatrix(g)}},
		}

		for year := 7; year < 15; year++ {
			y := g.SubGroup(group.Year(year))
			if len(y.Students) == 0 {
				continue
			}
			yeargroup := YearGroup{fmt.Sprintf("Year %v", year),
				template.URL(fmt.Sprintf("&year=%v", year)),
				subGroups(y),
				groupMatrix(y)}
			data.YearGroups = append(data.YearGroups, yeargroup)

		}

		err = e.Templates.ExecuteTemplate(w, "attendancegroups.tmpl", data)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
		}
	}
}

// KS3Groups produces a group breakdown page for
func KS3Groups(e env.Env) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		if redir := checkRedirect(e, w, r, 1); redir {
			return
		}
		header(e, w, r, 1)
		defer footer(e, w, r)

		f := getFilter(e, r)
		g, err := e.GroupByFilter(f)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
			return
		}

		ks3Subjects := subject.List{}
		for _, s := range e.Subjects {
			if s.Lvl == "KS3" {
				ks3Subjects = append(ks3Subjects, *s)
			}
		}
		sort.Sort(ks3Subjects)

		data := struct {
			Query    template.URL
			Year     string
			Subjects subject.List
			Groups   []subGroup
			Matrix   subGroupMatrix
		}{
			template.URL(r.URL.RawQuery),
			f.Year,
			ks3Subjects,
			subGroups(g),
			groupMatrix(g),
		}

		err = e.Templates.ExecuteTemplate(w, "ks3groups.tmpl", data)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
		}
	}
}

// KS3Summary produces a page with the student
func KS3Summary(e env.Env) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		if redir := checkRedirect(e, w, r, 2); redir {
			return
		}
		header(e, w, r, 2)
		defer footer(e, w, r)

		f := getFilter(e, r)
		g, err := e.GroupByFilter(f)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
			return
		}

		ks3Subjects := subject.List{}
		var lvl subject.Level
		for _, s := range e.Subjects {
			if s.Lvl == "KS3" {
				lvl = s.Level
				ks3Subjects = append(ks3Subjects, *s)
			}
		}
		sort.Sort(ks3Subjects)

		data := struct {
			Query    template.URL
			Subjects subject.List
			KS3      subject.Level
			Group    group.Group
		}{
			template.URL(r.URL.RawQuery),
			ks3Subjects,
			lvl,
			g,
		}

		err = e.Templates.ExecuteTemplate(w, "ks3summary.tmpl", data)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
		}
	}
}

// Progress8 returns a handler to produce the Progress 8 page.
func Progress8(e env.Env) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		if redir := checkRedirect(e, w, r, 2); redir {
			return
		}
		header(e, w, r, 2)
		defer footer(e, w, r)

		f := getFilter(e, r)
		g, err := e.GroupByFilter(f)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
			return
		}

		nat, exists := e.Attainment8[f.NatYear]
		if !exists {
			fmt.Fprintf(w, "Error: %v", err)
		}

		natLine := points{}
		for ks2, att8 := range nat {
			n, err := strconv.ParseFloat(ks2, 64)
			if err != nil {
				fmt.Fprintf(w, "Error: %v", err)
			}
			natLine = append(natLine, point{X: n, Y: att8.Overall})
		}
		sort.Sort(natLine)

		pupilData := [4]points{}
		for _, s := range g.Students {

			p8 := s.Basket().Overall()
			var key int
			switch {
			case s.PP && s.Gender == 1:
				key = 0
			case s.Gender == 1:
				key = 1
			case s.PP && s.Gender == 0:
				key = 2
			case s.Gender == 0:
				key = 3
			}

			pupilData[key] = append(pupilData[key], point{X: s.KS2.APS / 6,
				Y:    p8.Attainment,
				Name: s.Name(),
				P8:   p8})
		}

		data := struct {
			Query     template.URL
			Group     group.Group
			NatLine   points
			PupilData [4]points
		}{
			template.URL(r.URL.RawQuery),
			g,
			natLine,
			pupilData,
		}

		err = e.Templates.ExecuteTemplate(w, "progress8.tmpl", data)
		if err != nil {
			fmt.Fprintf(w, "Error: %v", err)
		}
	}
}