add top locations query
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parent
548c086079
commit
fa86c375c5
@ -110,6 +110,47 @@ func (server *Server) getListLocations(ctx *gin.Context) {
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ctx.JSON(http.StatusOK, locations)
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}
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type getTopListLocationsReq struct {
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Page int32 `form:"page" binding:"required,min=1"`
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PageSize int32 `form:"page_size" binding:"required,min=5"`
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OrderBy int16 `form:"order_by" binding:"numeric,min=1,max=3"`
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RegionType int16 `form:"region_type" binding:"numeric,min=0,max=7"`
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}
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func (server *Server) getTopListLocations(ctx *gin.Context) {
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var req getTopListLocationsReq
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var orderby string
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if err := ctx.ShouldBindQuery(&req); err != nil {
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ctx.JSON(http.StatusBadRequest, ValidationErrorResponse(err))
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return
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}
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switch req.OrderBy {
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case 1:
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orderby = "iq2.avg_bayes"
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case 2:
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orderby = "iq2.critic_bayes"
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case 3:
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orderby = "iq2.user_bayes"
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}
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arg := db.GetTopListLocationsParams{
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Limit: req.PageSize,
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Offset: (req.Page - 1) * req.PageSize,
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OrderBy: orderby,
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RegionType: sql.NullInt16{Valid: req.RegionType > 0, Int16: req.RegionType},
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}
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locations, err := server.Store.GetTopListLocations(ctx, arg)
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if err != nil {
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ctx.JSON(http.StatusInternalServerError, ErrorResponse(err, "Something went wrong"))
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return
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}
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ctx.JSON(http.StatusOK, locations)
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}
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type getListRecentLocationsWithRatingsReq struct {
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Page int32 `form:"page_size" binding:"required,min=1"`
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}
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@ -41,7 +41,8 @@ func (server *Server) getRoutes() {
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// LOCATION
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router.POST("/locations", server.createLocation)
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router.GET("/recent-locations/ratings", server.getListRecentLocationsWithRatings)
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router.GET("/locations/recent", server.getListRecentLocationsWithRatings)
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router.GET("/locations/top-ratings", server.getTopListLocations)
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router.GET("/locations", server.getListLocations)
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router.GET("/location/:location_id", server.getLocation)
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@ -109,6 +109,21 @@ func (mr *MockStoreMockRecorder) GetLocation(arg0, arg1 interface{}) *gomock.Cal
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return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetLocation", reflect.TypeOf((*MockStore)(nil).GetLocation), arg0, arg1)
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}
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// GetTopListLocations mocks base method.
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func (m *MockStore) GetTopListLocations(arg0 context.Context, arg1 db.GetTopListLocationsParams) ([]db.GetTopListLocationsRow, error) {
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m.ctrl.T.Helper()
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ret := m.ctrl.Call(m, "GetTopListLocations", arg0, arg1)
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ret0, _ := ret[0].([]db.GetTopListLocationsRow)
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ret1, _ := ret[1].(error)
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return ret0, ret1
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}
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// GetTopListLocations indicates an expected call of GetTopListLocations.
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func (mr *MockStoreMockRecorder) GetTopListLocations(arg0, arg1 interface{}) *gomock.Call {
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mr.mock.ctrl.T.Helper()
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return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetTopListLocations", reflect.TypeOf((*MockStore)(nil).GetTopListLocations), arg0, arg1)
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}
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// UpdatePassword mocks base method.
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func (m *MockStore) UpdatePassword(arg0 context.Context, arg1 db.UpdatePasswordParams) error {
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m.ctrl.T.Helper()
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110
db/sqlc/locations.go
Normal file
110
db/sqlc/locations.go
Normal file
@ -0,0 +1,110 @@
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package db
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import (
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"context"
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"database/sql"
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"fmt"
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)
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type GetTopListLocationsParams struct {
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Limit int32
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Offset int32
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OrderBy string
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RegionType sql.NullInt16
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}
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type GetTopListLocationsRow struct {
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RowNumber int32 `json:"row_number"`
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ID int32 `json:"id"`
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Name string `json:"name"`
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RegionName string `json:"region_name"`
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Thumbnail sql.NullString `json:"thumbnail"`
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Address string `json:"address"`
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GoogleMapsLink string `json:"google_maps_link"`
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RegencyName string `json:"regency_name"`
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CriticScore sql.NullInt32 `json:"critic_score"`
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CriticCount int16 `json:"critic_count"`
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UserScore sql.NullInt32 `json:"user_score"`
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UserCount int16 `json:"user_count"`
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TotalCount int16 `json:"total_count"`
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CriticBayes int16 `json:"critic_bayes"`
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UserBayes int16 `json:"user_bayes"`
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AvgBayes int16 `json:"avg_bayes"`
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}
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func (q *Queries) GetTopListLocations(ctx context.Context, arg GetTopListLocationsParams) ([]GetTopListLocationsRow, error) {
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regionType := ""
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if arg.RegionType.Valid {
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regionType = fmt.Sprintf("AND reg.id = %d", arg.RegionType.Int16)
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}
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getTopListQ := fmt.Sprintf(`SELECT
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row_number() over (ORDER BY %s DESC) as row_number,
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*
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FROM(
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SELECT
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*,
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(SELECT 5 * 4 + coalesce(critic_score, 0) * coalesce(critic_count, 0) / 5 + coalesce(critic_count, 0)) as critic_bayes,
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(SELECT 50 + coalesce(user_score, 0) * coalesce(user_count, 0) / 50 + coalesce(user_count, 0)) as user_bayes,
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((SELECT 50 + coalesce(user_score, 0) * coalesce(user_count, 0) / 50 + coalesce(user_count, 0)) + (SELECT 5 * 4 + coalesce(critic_score, 0) * coalesce(critic_count, 0) / 5 + coalesce(critic_count, 0)) ) / 2 as avg_bayes
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FROM (
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SELECT
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l.id,
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name,
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l.address,
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reg.region_name as region_name,
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l.google_maps_link,
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thumbnail,
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re.regency_name,
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(SELECT SUM(score) from reviews re where re.is_from_critic = true and re.location_id = l.id) as critic_score,
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(SELECT COUNT(id) from reviews re where re.is_from_critic = true and re.location_id = l.id) as critic_count,
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(SELECT SUM(score) from reviews re where re.is_from_critic = false and re.location_id = l.id) as user_score,
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(SELECT COUNT(id) from reviews re where re.is_from_critic = false and re.location_id = l.id) as user_count
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FROM locations l
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JOIN regencies re on re.id = l.regency_id
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JOIN provinces prov on prov.id = re.province_id
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JOIN regions reg on reg.id = prov.region_id
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WHERE approved_by IS NOT NULL %s ) iq1 ) iq2
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LIMIT $1
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OFFSET $2;`, arg.OrderBy, regionType)
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rows, err := q.db.QueryContext(ctx, getTopListQ, arg.Limit, arg.Offset)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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items := []GetTopListLocationsRow{}
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for rows.Next() {
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var i GetTopListLocationsRow
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if err := rows.Scan(
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&i.RowNumber,
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&i.ID,
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&i.Name,
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&i.Address,
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&i.RegionName,
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&i.GoogleMapsLink,
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&i.Thumbnail,
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&i.RegencyName,
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&i.CriticScore,
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&i.CriticCount,
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&i.UserScore,
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&i.UserCount,
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&i.CriticBayes,
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&i.UserBayes,
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&i.AvgBayes,
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); err != nil {
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return nil, err
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}
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i.TotalCount = i.UserCount + i.CriticCount
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items = append(items, i)
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}
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if err := rows.Close(); err != nil {
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return nil, err
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return items, nil
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}
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@ -143,10 +143,38 @@ func (q *Queries) GetListRecentLocationsWithRatings(ctx context.Context, limit i
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}
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const getLocation = `-- name: GetLocation :one
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SELECT id, address, name, google_maps_link, submitted_by, total_visited, thumbnail, regency_id, is_deleted, created_at, updated_at, approved_by, approved_at FROM locations
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WHERE id = $1
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`
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// https://fulmicoton.com/posts/bayesian_rating/
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// SELECT
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//
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// *,
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// (SELECT 5 * 4 + coalesce(critic_score, 0) * coalesce(critic_count, 0) / 5 + coalesce(critic_count, 0)) as critic_bayes,
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// (SELECT 50 + coalesce(user_score, 0) * coalesce(user_count, 0) / 50 + coalesce(user_count, 0)) as user_bayes,
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// ((SELECT 50 + coalesce(user_score, 0) * coalesce(user_count, 0) / 50 + coalesce(user_count, 0)) + (SELECT 5 * 4 + coalesce(critic_score, 0) * coalesce(critic_count, 0) / 5 + coalesce(critic_count, 0)) ) / 2 as avg_bayes
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//
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// FROM (
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//
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// SELECT
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// l.id,
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// name,
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// thumbnail,
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// re.regency_name,
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// (SELECT SUM(score) from reviews re where re.is_from_critic = true and re.location_id = l.id) as critic_score,
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// (SELECT COUNT(id) from reviews re where re.is_from_critic = true and re.location_id = l.id) as critic_count,
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// (SELECT SUM(score) from reviews re where re.is_from_critic = false and re.location_id = l.id) as user_score,
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// (SELECT COUNT(id) from reviews re where re.is_from_critic = false and re.location_id = l.id) as user_count
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// FROM locations l
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// JOIN regencies re on re.id = l.regency_id
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// WHERE approved_by IS NOT NULL) iq1
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//
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// ORDER BY avg_bayes DESC
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// LIMIT $1
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// OFFSET $2;
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func (q *Queries) GetLocation(ctx context.Context, id int32) (Location, error) {
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row := q.db.QueryRowContext(ctx, getLocation, id)
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var i Location
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@ -1,6 +1,7 @@
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package db
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import (
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"context"
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"database/sql"
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"github.com/yiplee/sqlc"
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@ -8,6 +9,7 @@ import (
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type Store interface {
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Querier
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GetTopListLocations(ctx context.Context, arg GetTopListLocationsParams) ([]GetTopListLocationsRow, error)
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}
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type SQLStore struct {
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