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DB Update (#138)

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* [WIP] DB service

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* fixup db and return id in create response

* add delete method and some error checking

* Add the update method

* fix panic

* use record for the data field

* update db

Co-authored-by: Janos Dobronszki <dobronszki@gmail.com>
This commit is contained in:
Asim Aslam
2021-06-02 19:02:32 +01:00
committed by GitHub
parent 301ecec814
commit 91e03ba536
3 changed files with 81 additions and 27 deletions
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46
db/handler/db.go
View File

@@ -80,8 +80,50 @@ func (e *Db) Update(ctx context.Context, req *db.UpdateRequest, rsp *db.UpdateRe
return db.Table(req.Table).First(&Record{ID: id}).Updates(Record{Data: data}).Error
}
// apply all the updates
return db.Table(req.Table).Updates(Record{Data: data}).Error
// define the db
db = db.Table(req.Table)
// no ID param so we're expecting a query
if len(req.Query) == 0 {
// apply the updates to all records
return db.Find(&Record{}).Updates(Record{Data: data}).Error
}
// parse the query
queries, err := Parse(req.Query)
if err != nil {
return err
}
// get the filters
for _, query := range queries {
typ := "text"
switch query.Value.(type) {
case int64:
typ = "int"
case bool:
typ = "boolean"
}
op := ""
switch query.Op {
case itemEquals:
op = "="
case itemGreaterThan:
op = ">"
case itemGreaterThanEquals:
op = ">="
case itemLessThan:
op = "<"
case itemLessThanEquals:
op = "<="
case itemNotEquals:
op = "!="
}
db = db.Where(fmt.Sprintf("(data ->> '%v')::%v %v ?", query.Field, typ, op), query.Value)
}
// apply updates to the filtered records
return db.Updates(Record{Data: data}).Error
}
func (e *Db) Read(ctx context.Context, req *db.ReadRequest, rsp *db.ReadResponse) error {

58
db/proto/db.pb.go
View File

@@ -270,8 +270,10 @@ type UpdateRequest struct {
unknownFields protoimpl.UnknownFields
Table string `protobuf:"bytes,1,opt,name=table,proto3" json:"table,omitempty"`
// query filter if applying to multiple records
Query string `protobuf:"bytes,2,opt,name=query,proto3" json:"query,omitempty"`
// JSON encoded record or records (can be array or object)
Record string `protobuf:"bytes,2,opt,name=record,proto3" json:"record,omitempty"`
Record string `protobuf:"bytes,3,opt,name=record,proto3" json:"record,omitempty"`
}
func (x *UpdateRequest) Reset() {
@@ -313,6 +315,13 @@ func (x *UpdateRequest) GetTable() string {
return ""
}
func (x *UpdateRequest) GetQuery() string {
if x != nil {
return x.Query
}
return ""
}
func (x *UpdateRequest) GetRecord() string {
if x != nil {
return x.Record
@@ -474,31 +483,32 @@ var file_proto_db_proto_rawDesc = []byte{
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}
var (

4
db/proto/db.proto
View File

@@ -44,8 +44,10 @@ message CreateResponse {
message UpdateRequest {
string table = 1;
// query filter if applying to multiple records
string query = 2;
// JSON encoded record or records (can be array or object)
string record = 2;
string record = 3;
}
message UpdateResponse {