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db: Fix limit (#154)

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This commit is contained in:
Janos Dobronszki
2021-06-10 16:38:43 +01:00
committed by GitHub
parent e6f0d44a1a
commit 5962023e6f
1 changed files with 18 additions and 4 deletions
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20
db/handler/db.go
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@@ -21,7 +21,7 @@ import (
)
const idKey = "id"
const stmt = "create table %v(id text not null, data jsonb, primary key(id));"
const stmt = "create table if not exists %v(id text not null, data jsonb, primary key(id)); alter table %v add created_at timestamptz; alter table %v add updated_at timestamptz"
var re = regexp.MustCompile("^[a-zA-Z0-9_]*$")
var c = cache.New(5*time.Minute, 10*time.Minute)
@@ -31,6 +31,8 @@ type Record struct {
Data datatypes.JSON `json:"data"`
// private field, ignored from gorm
table string `gorm:"-"`
CreatedAt time.Time
UpdatedAt time.Time
}
type Db struct {
@@ -63,7 +65,7 @@ func (e *Db) Create(ctx context.Context, req *db.CreateRequest, rsp *db.CreateRe
_, ok = c.Get(tableName)
if !ok {
logger.Infof("Creating table '%v'", tableName)
db.Exec(fmt.Sprintf(stmt, tableName))
db.Exec(fmt.Sprintf(stmt, tableName, tableName, tableName))
c.Set(tableName, true, 0)
}
@@ -169,6 +171,13 @@ func (e *Db) Read(ctx context.Context, req *db.ReadRequest, rsp *db.ReadResponse
if err != nil {
return err
}
_, ok = c.Get(tableName)
if !ok {
logger.Infof("Creating table '%v'", tableName)
db.Exec(fmt.Sprintf(stmt, tableName, tableName, tableName))
c.Set(tableName, true, 0)
}
if req.Limit > 1000 {
return errors.BadRequest("db.read", fmt.Sprintf("limit over 1000 is invalid, you specified %v", req.Limit))
}
@@ -199,8 +208,13 @@ func (e *Db) Read(ctx context.Context, req *db.ReadRequest, rsp *db.ReadResponse
case itemNotEquals:
op = "!="
}
db = db.Where(fmt.Sprintf("(data ->> '%v')::%v %v ?", query.Field, typ, op), query.Value).Offset(int(req.Offset)).Limit(int(req.Limit))
db = db.Where(fmt.Sprintf("(data ->> '%v')::%v %v ?", query.Field, typ, op), query.Value)
}
orderField := "created_at DESC"
if req.OrderBy != "" {
orderField = req.OrderBy + " " + req.Order
}
db = db.Order(orderField).Offset(int(req.Offset)).Limit(int(req.Limit))
err = db.Find(&recs).Error
if err != nil {
return err