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handle_dataset.go
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/
handle_dataset.go
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package main
import (
"context"
"database/sql"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/paulmach/orb/maptile"
"github.com/paulmach/orb/maptile/tilecover"
"github.com/paulmach/orb"
geom "github.com/go-spatial/geom"
"github.com/go-spatial/geom/encoding/mvt"
slippy "github.com/go-spatial/geom/slippy"
"github.com/go-spatial/tegola/atlas"
"github.com/go-spatial/tegola/mapbox/tilejson"
"github.com/go-spatial/tegola/server"
"github.com/jinzhu/gorm"
"github.com/paulmach/orb/geojson"
log "github.com/sirupsen/logrus"
"github.com/spf13/viper"
"github.com/gin-gonic/gin"
)
func listDatasets(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
set := userSet.service(uid)
if set == nil {
res.Fail(c, 4043)
return
}
var dss []Dataset
tdb := db
pub, y := c.GetQuery("public")
if y && strings.ToLower(pub) == "true" {
if casEnf.Enforce(uid, "list-atlas-datasets", c.Request.Method) {
tdb = tdb.Where("owner = ? and public = ? ", ATLAS, true)
}
} else {
tdb = tdb.Where("owner = ?", uid)
}
kw, y := c.GetQuery("keyword")
if y {
tdb = tdb.Where("name ~ ?", kw)
}
order, y := c.GetQuery("order")
if y {
tdb = tdb.Order(order)
}
total := 0
err := tdb.Model(&Dataset{}).Count(&total).Error
if err != nil {
res.Fail(c, 5001)
return
}
start := 0
rows := 10
if offset, y := c.GetQuery("start"); y {
rs, yr := c.GetQuery("rows") //limit count defaut 10
if yr {
ri, err := strconv.Atoi(rs)
if err == nil {
rows = ri
}
}
start, _ = strconv.Atoi(offset)
tdb = tdb.Offset(start).Limit(rows)
}
err = tdb.Find(&dss).Count(&total).Error
if err != nil {
res.Fail(c, 5001)
return
}
res.DoneData(c, gin.H{
"keyword": kw,
"order": order,
"start": start,
"rows": rows,
"total": total,
"list": dss,
})
// var dts []*Dataset
// set.D.Range(func(_, v interface{}) bool {
// dts = append(dts, v.(*Dataset))
// return true
// })
// if uid != ATLAS && "true" == c.Query("public") {
// set := userSet.service(ATLAS)
// if set != nil {
// set.D.Range(func(_, v interface{}) bool {
// dt, ok := v.(*Dataset)
// if ok {
// if dt.Public {
// dts = append(dts, dt)
// }
// }
// return true
// })
// }
// }
// res.DoneData(c, dts)
}
func getDatasetInfo(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
did := c.Param("id")
ds := userSet.dataset(uid, did)
if ds == nil {
log.Warnf(`getDatasetInfo, %s's dataset (%s) not found ^^`, uid, did)
res.Fail(c, 4046)
return
}
res.DoneData(c, ds)
}
func updateDatasetInfo(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
did := c.Param("id")
ds := userSet.dataset(uid, did)
if ds == nil {
log.Warnf(`getDatasetInfo, %s's dataset (%s) not found ^^`, uid, did)
res.Fail(c, 4046)
return
}
err := c.Bind(ds)
if err != nil {
res.Fail(c, 4001)
return
}
err = ds.Update()
if err != nil {
log.Errorf("updateStyleInfo, update %s's style (%s) info error, details: %s", uid, did, err)
res.FailErr(c, err)
return
}
res.Done(c, "")
}
func oneClickImport(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
set := userSet.service(uid)
if set == nil {
res.Fail(c, 4043)
return
}
ds, err := saveSource(c)
if err != nil {
log.Warn(err)
res.FailErr(c, err)
return
}
dss, _ := loadZipSources(ds)
loadFromSources(dss)
var tasks []*Task
for _, ds := range dss {
ds.Owner = uid
go func() {
err := ds.Save()
if err != nil {
log.Error(err)
}
}()
id := ShortID()
task := &Task{
ID: id,
Base: ds.ID,
Owner: ds.Owner,
Name: ds.Name,
Type: DSIMPORT,
Pipe: make(chan struct{}),
}
//任务队列,若队列已满,则阻塞
taskQueue <- task
//任务集
taskSet.Store(task.ID, task)
go func(ds *DataSource, task *Task) {
//通知goroutine任务结束
defer func(task *Task) {
task.Pipe <- struct{}{}
}(task)
st := time.Now()
err = ds.Import(task)
log.Infof("one key import time cost: %v", time.Since(st))
if err != nil {
task.Status = "failed"
task.Error = err.Error()
} else {
task.Progress = 100
task.Status = "finished"
task.Error = ""
}
}(ds, task)
//结束队列，通知完成
go func(ds *DataSource, task *Task) {
<-task.Pipe
<-taskQueue
task.save()
taskSet.Delete(task.ID)
if task.Error == "" {
//todo goroute 导入，以下事务需在task完成后处理
dt := ds.toDataset()
err = dt.UpInsert()
if err != nil {
log.Errorf(`dataImport, upinsert dataset info error, details: %s`, err)
res.FailErr(c, err)
return
}
err = dt.Service()
if err == nil {
set.D.Store(dt.ID, dt)
casEnf.AddPolicy(USER, dt.ID, "GET")
}
} else {
log.Errorf("import task failed, details: %s", err)
}
}(ds, task)
tasks = append(tasks, task)
//todo goroute 导入，以下事务需在task完成后处理
}
res.DoneData(c, tasks)
}
func uploadFile(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
set := userSet.service(uid)
if set == nil {
res.Fail(c, 4043)
return
}
ds, err := saveSource(c)
if err != nil {
log.Warn(err)
res.FailErr(c, err)
return
}
dss, _ := loadZipSources(ds)
loadFromSources(dss)
for _, ds := range dss {
ds.Owner = uid
err = ds.Save()
if err != nil {
log.Errorf(`uploadFiles, upinsert datafile info error, details: %s`, err)
}
}
res.DoneData(c, dss)
}
func previewFile(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
set := userSet.service(uid)
if set == nil {
res.Fail(c, 4043)
return
}
encoding := strings.ToLower(c.Query("encoding"))
switch encoding {
case "utf-8", "gbk", "big5", "gb18030":
default:
}
id := c.Param("id")
ds := &DataSource{}
err := db.Where("id = ?", id).First(ds).Error
if err != nil {
if gorm.IsRecordNotFoundError(err) {
log.Errorf(`dataPreview, can not find datafile, id: %s`, id)
res.FailMsg(c, "datafile not found")
return
}
log.Errorf(`dataPreview, get datafile info error, details: %s`, err)
res.Fail(c, 5001)
return
}
ds.Encoding = encoding
err = ds.LoadFrom()
if err != nil {
log.Error(err)
res.FailErr(c, err)
return
}
res.DoneData(c, ds)
return
}
func importFile(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
set := userSet.service(uid)
if set == nil {
res.Fail(c, 4043)
return
}
ds := &DataSource{}
err := c.Bind(ds)
if err != nil {
log.Error(err)
res.Fail(c, 4001)
return
}
if c.Param("id") != ds.ID {
log.Warnf("id not eq")
}
id := ShortID()
task := &Task{
ID: id,
Base: ds.ID,
Name: ds.Name,
Owner: ds.Owner,
Type: DSIMPORT,
Pipe: make(chan struct{}),
}
//任务队列
taskQueue <- task
// select {
// case taskQueue <- task:
// default:
// log.Warningf("task queue overflow, request refused...")
// res.FailMsg(c, "task queue overflow, request refused")
// return
// }
//任务集
taskSet.Store(task.ID, task)
go func(ds *DataSource, task *Task) {
defer func(task *Task) {
task.Pipe <- struct{}{}
}(task)
err = ds.Import(task)
if err != nil {
task.Status = "failed"
task.Error = err.Error()
} else {
task.Progress = 100
task.Status = "finished"
task.Error = ""
}
}(ds, task)
go func(ds *DataSource, task *Task) {
<-task.Pipe
<-taskQueue
task.save()
taskSet.Delete(task.ID)
if task.Error == "" {
//todo goroute 导入，以下事务需在task完成后处理
dt := ds.toDataset()
err = dt.UpInsert()
if err != nil {
log.Errorf(`dataImport, upinsert dataset info error, details: %s`, err)
res.FailErr(c, err)
return
}
err = dt.Service()
if err == nil {
set.D.Store(dt.ID, dt)
casEnf.AddPolicy(USER, dt.ID, "GET")
}
} else {
log.Errorf("import task failed, details: %s", err)
}
}(ds, task)
res.DoneData(c, task)
}
//downloadDataset 下载数据集
func downloadDataset(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
did := c.Param("id")
dt := userSet.dataset(uid, did)
if dt == nil {
log.Warnf(`downloadDataset, %s's dataset (%s) not found ^^`, uid, did)
res.Fail(c, 4046)
return
}
file, err := os.Open(dt.Path)
if err != nil {
log.Errorf(`downloadDataset, open %s's tileset (%s) error, details: %s ^^`, uid, did, err)
res.FailErr(c, err)
return
}
c.Header("Content-type", "application/octet-stream")
c.Header("Content-Disposition", "attachment; filename= "+dt.ID+MBTILESEXT)
io.Copy(c.Writer, file)
return
}
func getDistinctValues(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
did := c.Param("id")
dt := userSet.dataset(uid, did)
if dt == nil {
log.Warnf(`getDistinctValues, %s's dataset (%s) not found ^^`, uid, did)
res.Fail(c, 4046)
return
}
flds, ok := c.GetQuery("fields")
if !ok {
res.DoneData(c, dt.Fields)
return
}
tbname := strings.ToLower(did)
s := fmt.Sprintf(`SELECT distinct(%s) as val,count(*) as cnt FROM "%s" GROUP BY %s;`, flds, tbname, flds)
fmt.Println(s)
rows, err := db.Raw(s).Rows()
if err != nil {
log.Error(err)
res.Fail(c, 5001)
return
}
defer rows.Close()
type ValCnt struct {
Val string
Cnt int
}
var valCnts []ValCnt
for rows.Next() {
var vc ValCnt
// ScanRows scan a row into user
db.ScanRows(rows, &vc)
valCnts = append(valCnts, vc)
// do something
}
res.DoneData(c, valCnts)
}
func getGeojson(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
did := c.Param("id")
dt := userSet.dataset(uid, did)
if dt == nil {
log.Warnf(`getDistinctValues, %s's dataset (%s) not found ^^`, uid, did)
res.Fail(c, 4046)
return
}
fields := c.Query("fields")
filter := c.Query("filter")
tbname := strings.ToLower(did)
selStr := "st_asgeojson(geom) as geom "
if "" != fields {
selStr = selStr + "," + fields
}
var whr string
if "" != filter {
whr = " WHERE " + filter
}
s := fmt.Sprintf(`SELECT %s FROM "%s" %s;`, selStr, tbname, whr)
rows, err := db.Raw(s).Rows() // (*sql.Rows, error)
if err != nil {
log.Error(err)
res.Fail(c, 5001)
return
}
defer rows.Close()
cols, err := rows.ColumnTypes()
if err != nil {
res.Fail(c, 5001)
return
}
fc := geojson.NewFeatureCollection()
for rows.Next() {
// Scan needs an array of pointers to the values it is setting
// This creates the object and sets the values correctly
vals := make([]interface{}, len(cols))
for i := range cols {
vals[i] = new(sql.RawBytes)
}
err = rows.Scan(vals...)
if err != nil {
log.Error(err)
}
f := geojson.NewFeature(nil)
for i, t := range cols {
// skip nil values.
if vals[i] == nil {
continue
}
rb, ok := vals[i].(*sql.RawBytes)
if !ok {
log.Errorf("Cannot convert index %d column %s to type *sql.RawBytes", i, t.Name())
continue
}
switch t.Name() {
case "geom":
geom, err := geojson.UnmarshalGeometry([]byte(*rb))
if err != nil {
log.Errorf("UnmarshalGeometry from geojson result error, index %d column %s", i, t.Name())
continue
}
f.Geometry = geom.Geometry()
default:
v := string(*rb)
switch cols[i].DatabaseTypeName() {
case "INT", "INT4":
f.Properties[t.Name()], _ = strconv.Atoi(v)
case "NUMERIC", "DECIMAL": //number
f.Properties[t.Name()], _ = strconv.ParseFloat(v, 64)
// case "BOOL":
// case "TIMESTAMPTZ":
// case "_VARCHAR":
// case "TEXT", "VARCHAR", "BIGINT":
default:
f.Properties[t.Name()] = v
}
}
}
fc.Append(f)
}
var extent []byte
stbox := fmt.Sprintf(`SELECT st_asgeojson(st_extent(geom)) as extent FROM %s %s;`, tbname, whr)
db.Raw(stbox).Row().Scan(&extent) // (*sql.Rows, error)
ext, err := geojson.UnmarshalGeometry(extent)
if err == nil {
fc.BBox = geojson.NewBBox(ext.Geometry().Bound())
}
gj, err := fc.MarshalJSON()
if err != nil {
log.Errorf("unable to MarshalJSON of featureclection.")
res.FailMsg(c, "unable to MarshalJSON of featureclection.")
return
}
c.JSON(http.StatusOK, json.RawMessage(gj))
}
func getGeojsonLite(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
did := c.Param("id")
dt := userSet.dataset(uid, did)
if dt == nil {
log.Warnf(`getGeojsonLite %s's dataset (%s) not found ^^`, uid, did)
res.Fail(c, 4046)
return
}
fc, err := dt.Dump2GeoJSON()
if err != nil {
log.Error(err)
res.Fail(c, 5001)
return
}
var minx, maxx, miny, maxy float64
stbox := fmt.Sprintf(`SELECT min(minx),max(maxx),min(miny),max(maxy) FROM "rtree_%s_geom";`, strings.ToLower(dt.ID))
err = db.Raw(stbox).Row().Scan(&minx, &maxx, &miny, &maxy) // (*sql.Rows, error)
if err == nil {
fc.BBox = []float64{minx, miny, maxx, maxy}
}
gj, err := fc.MarshalJSON()
if err != nil {
log.Errorf("unable to MarshalJSON of featureclection.")
res.FailMsg(c, "unable to MarshalJSON of featureclection.")
return
}
c.JSON(http.StatusOK, json.RawMessage(gj))
}
func queryGeojson(c *gin.Context) {
res := NewRes()
did := c.Param("id")
var body struct {
Geom string `form:"geom" json:"geom"`
Fields string `form:"fields" json:"fields"`
Filter string `form:"filter" json:"filter"`
}
err := c.Bind(&body)
if err != nil {
res.Fail(c, 4001)
return
}
selStr := "st_asgeojson(geom) as geom "
if "" != body.Fields {
selStr = selStr + "," + body.Fields
}
var whrStr string
if body.Geom != "" {
whrStr = fmt.Sprintf(` WHERE geom && st_geomfromgeojson('%s')`, body.Geom)
if "" != body.Filter {
whrStr = whrStr + " AND " + body.Filter
}
} else {
if "" != body.Filter {
whrStr = " WHERE " + body.Filter
}
}
s := fmt.Sprintf(`SELECT %s FROM "%s" %s;`, selStr, strings.ToLower(did), whrStr)
rows, err := db.Raw(s).Rows() // (*sql.Rows, error)
if err != nil {
log.Error(err)
res.Fail(c, 5001)
return
}
defer rows.Close()
cols, err := rows.ColumnTypes()
if err != nil {
res.Fail(c, 5001)
return
}
fc := geojson.NewFeatureCollection()
for rows.Next() {
// Scan needs an array of pointers to the values it is setting
// This creates the object and sets the values correctly
vals := make([]interface{}, len(cols))
for i := range cols {
vals[i] = new(sql.RawBytes)
}
err = rows.Scan(vals...)
if err != nil {
log.Error(err)
}
f := geojson.NewFeature(nil)
for i, t := range cols {
// skip nil values.
if vals[i] == nil {
continue
}
rb, ok := vals[i].(*sql.RawBytes)
if !ok {
log.Errorf("Cannot convert index %d column %s to type *sql.RawBytes", i, t.Name())
continue
}
switch t.Name() {
case "geom":
geom, err := geojson.UnmarshalGeometry([]byte(*rb))
if err != nil {
log.Errorf("UnmarshalGeometry from geojson result error, index %d column %s", i, t.Name())
continue
}
f.Geometry = geom.Geometry()
default:
v := string(*rb)
switch cols[i].DatabaseTypeName() {
case "INT", "INT4":
f.Properties[t.Name()], _ = strconv.Atoi(v)
case "NUMERIC", "DECIMAL": //number
f.Properties[t.Name()], _ = strconv.ParseFloat(v, 64)
// case "BOOL":
// case "TIMESTAMPTZ":
// case "_VARCHAR":
// case "TEXT", "VARCHAR", "BIGINT":
default:
f.Properties[t.Name()] = v
}
}
}
fc.Append(f)
}
gj, err := fc.MarshalJSON()
if err != nil {
log.Errorf("unable to MarshalJSON of featureclection.")
res.FailMsg(c, "unable to MarshalJSON of featureclection.")
return
}
res.DoneData(c, json.RawMessage(gj))
}
func cubeQuery(c *gin.Context) {
res := NewRes()
var body struct {
SQL string `form:"sql" json:"sql" binding:"required"`
}
err := c.Bind(&body)
if err != nil {
res.Fail(c, 4001)
return
}
rows, err := db.Raw(body.SQL).Rows() // (*sql.Rows, error)
if err != nil {
log.Error(err)
res.Fail(c, 5001)
return
}
defer rows.Close()
cols, err := rows.ColumnTypes()
if err != nil {
log.Error(err)
res.Fail(c, 5001)
return
}
var t [][]string
for rows.Next() {
// Scan needs an array of pointers to the values it is setting
// This creates the object and sets the values correctly
vals := make([]sql.RawBytes, len(cols))
valsScer := make([]interface{}, len(vals))
for i := range vals {
valsScer[i] = &vals[i]
}
err = rows.Scan(valsScer...)
if err != nil {
log.Error(err)
}
var r []string
for _, v := range vals {
// skip nil values.
if v == nil {
continue
}
r = append(r, string(v))
}
if len(r) == 0 {
continue
}
t = append(t, r)
}
res.DoneData(c, t)
}
func queryExec(c *gin.Context) {
res := NewRes()
uid := c.GetString(userKey)
if uid == "" {
uid = c.GetString(identityKey)
}
did := c.Param("id")
dt := userSet.dataset(uid, did)
if dt == nil {
log.Warnf(`getDistinctValues, %s's dataset (%s) not found ^^`, uid, did)
res.Fail(c, 4046)
return
}
var body struct {
SQL string `form:"sql" json:"sql" binding:"required"`
}
err := c.Bind(&body)
if err != nil {
res.Fail(c, 4001)
return
}
s := strings.Replace(body.SQL, "!TABLENAME!", fmt.Sprintf(` "%s" `, strings.ToLower(did)), -1)
rows, err := db.Raw(s).Rows() // (*sql.Rows, error)
if err != nil {
log.Error(err)
res.Fail(c, 5001)
return
}
defer rows.Close()
cols, _ := rows.ColumnTypes()
var ams [][]interface{}
for rows.Next() {
// Create a slice of interface{}'s to represent each column,
// and a second slice to contain pointers to each item in the columns slice.
columns := make([]sql.RawBytes, len(cols))
columnPointers := make([]interface{}, len(cols))
for i := range columns {
columnPointers[i] = &columns[i]
}
// Scan the result into the column pointers...
if err := rows.Scan(columnPointers...); err != nil {
log.Error(err)
continue
}
// Create our map, and retrieve the value for each column from the pointers slice,
// storing it in the map with the name of the column as the key.
m := make([]interface{}, len(cols))
for i, col := range columns {
// if cols[i].Name() == "geom" || cols[i].Name() == "search" {
// continue
// }
//"NVARCHAR", "DECIMAL", "BOOL", "INT", "BIGINT".
v := string(col)
switch cols[i].DatabaseTypeName() {
case "INT", "INT4":
m[i], _ = strconv.Atoi(v)
case "NUMERIC", "DECIMAL": //number
m[i], _ = strconv.ParseFloat(v, 64)
// case "BOOL":
// case "TIMESTAMPTZ":
// case "_VARCHAR":
// case "TEXT", "VARCHAR", "BIGINT":
default:
m[i] = v
}
}
// fmt.Print(m)
ams = append(ams, m)
}
res.DoneData(c, ams)
}
func queryBusiness(c *gin.Context) {
res := NewRes()
did := c.Param("id")
var linkTables []string
if did != "banks" {
res.DoneData(c, gin.H{
did: linkTables,
})
return
}
linkTables = viper.GetStringSlice("business.banks.linked")
res.DoneData(c, gin.H{
did: linkTables,
})
}
func getBuffers(c *gin.Context) {
}
func searchGeos(c *gin.Context) {
// res := NewRes()
searchType := c.Param("name")
keyword := c.Query("keyword")
var ams []map[string]interface{}
log.Println("***********", keyword, "**************")
if searchType != "search" || keyword == "" {
// res.Fail(c, 4001)
c.JSON(http.StatusOK, ams)
return
}
search := func(s string, keyword string) {
stmt, err := db.DB().Prepare(s)
if err != nil {
log.Error(err)
return
}
defer stmt.Close()
rows, err := stmt.Query(keyword)
if err != nil {
log.Error(err)
return
}
defer rows.Close()
cols, _ := rows.ColumnTypes()
for rows.Next() {
// Create a slice of interface{}'s to represent each column,
// and a second slice to contain pointers to each item in the columns slice.
columns := make([]sql.RawBytes, len(cols))
columnPointers := make([]interface{}, len(cols))
for i := range columns {
columnPointers[i] = &columns[i]
}
// Scan the result into the column pointers...
if err := rows.Scan(columnPointers...); err != nil {
log.Error(err)
continue
}
// Create our map, and retrieve the value for each column from the pointers slice,
// storing it in the map with the name of the column as the key.
m := make(map[string]interface{})
for i, col := range columns {
if col == nil {
continue
}
//"NVARCHAR", "DECIMAL", "BOOL", "INT", "BIGINT".
v := string(col)
switch cols[i].DatabaseTypeName() {
case "INT", "INT4":
m[cols[i].Name()], _ = strconv.Atoi(v)
case "NUMERIC", "DECIMAL": //number
m[cols[i].Name()], _ = strconv.ParseFloat(v, 64)
// case "BOOL":
// case "TIMESTAMPTZ":
// case "_VARCHAR":
// case "TEXT", "VARCHAR", "BIGINT":
default:
m[cols[i].Name()] = v
}
}
// fmt.Print(m)
ams = append(ams, m)
}
}
st := fmt.Sprintf(`SELECT id,名称,st_asgeojson(geom) as geom FROM regions WHERE 名称 ~ $1;`)
fmt.Println(st)
search(st, keyword)
if len(ams) > 10 {
c.JSON(http.StatusOK, ams)
return
}
bbox := c.Query("bbox")
var gfilter string
if bbox != "" {
gfilter = fmt.Sprintf(` geom && st_makeenvelope(%s,4326) AND `, bbox)
}
limit := c.Query("limit")
var limiter string
if limit != "" {
limiter = fmt.Sprintf(` LIMIT %s `, limit)
}
st = fmt.Sprintf(`SELECT id,名称,st_asgeojson(geom) as geom,s 搜索
FROM (SELECT id,名称,geom,unnest(search) s FROM banks) x WHERE %s s ~ $1 GROUP BY id,名称,geom,s %s;`, gfilter, limiter)
fmt.Println(st)
search(st, keyword)
if len(ams) > 10 {
c.JSON(http.StatusOK, ams)
return
}
st = fmt.Sprintf(`SELECT id,名称,st_asgeojson(geom) as geom,s 搜索
FROM (SELECT id,名称,geom,unnest(search) s FROM others) x WHERE %s s ~ $1 GROUP BY id,名称,geom,s %s;`, gfilter, limiter)
fmt.Println(st)
search(st, keyword)
if len(ams) > 10 {
c.JSON(http.StatusOK, ams)
return
}
st = fmt.Sprintf(`SELECT 名称,st_asgeojson(geom) as geom,s 搜索
FROM (SELECT 名称,geom,unnest(search) s FROM pois) x WHERE %s s ~ $1 GROUP BY 名称,geom,s %s;`, gfilter, limiter)
fmt.Println(st)
search(st, keyword)
if len(ams) > 10 {
c.JSON(http.StatusOK, ams)
return
}
c.JSON(http.StatusOK, ams)
}
func search(c *gin.Context) {
// res := NewRes()
id := c.Param("id")
tn := strings.ToLower(id)
var ams []map[string]interface{}
search := func(s string, keyword string) {
stmt, err := db.DB().Prepare(s)
if err != nil {
log.Error(err)
return
}
defer stmt.Close()
rows, err := stmt.Query(keyword)
if err != nil {
log.Error(err)
return
}
defer rows.Close()