This commit is contained in:
Mike Schwörer 2023-06-06 21:18:40 +02:00
parent 1fbae343a4
commit c338d23070
Signed by: Mikescher
GPG Key ID: D3C7172E0A70F8CF
14 changed files with 1076 additions and 9 deletions

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@ -6,3 +6,35 @@ A collection of general & useful library methods
This should not have any heavy dependencies (gin, mongo, etc) and add missing basic language features... This should not have any heavy dependencies (gin, mongo, etc) and add missing basic language features...
Potentially needs `export GOPRIVATE="gogs.mikescher.com"` Potentially needs `export GOPRIVATE="gogs.mikescher.com"`
### Packages:
| Name | Maintainer | Description |
|-------------|------------|---------------------------------------------------------------------------------------------------------------|
| langext | Mike | General uttility/helper functions, (everything thats missing from go standard library) |
| mathext | Mike | Utility/Helper functions for math |
| cryptext | Mike | Utility/Helper functions for encryption |
| syncext | Mike | Utility/Helper funtions for multi-threading / mutex / channels |
| dataext | Mike | Various useful data structures |
| zipext | Mike | Utility for zip/gzip/tar etc |
| | | |
| mongoext | Mike | Utility/Helper functions for mongodb |
| cursortoken | Mike | MongoDB cursortoken implementation |
| | | |
| totpext | Mike | Implementation of TOTP (2-Factor-Auth) |
| termext | Mike | Utilities for terminals (mostly color output) |
| confext | Mike | Parses environment configuration into structs |
| cmdext | Mike | Runner for external commands/processes |
| | | |
| sq | Mike | Utility functions for sql based databases |
| tst | Mike | Utility functions for unit tests |
| | | |
| rfctime | Mike | Classes for time seriallization, with different marshallign method for mongo and json |
| gojson | Mike | Same interface for marshalling/unmarshalling as go/json, except with proper serialization of null arrays/maps |
| | | |
| bfcodegen | Mike | Various codegen tools (run via go generate) |
| | | |
| rext | Mike | Regex Wrapper, wraps regexp with a better interface |
| wmo | Mike | Mongo Wrapper, wraps mongodb with a better interface |
| | | |

13
TODO.md Normal file
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@ -0,0 +1,13 @@
- cronext
- cursortoken
- typed/geenric mongo wrapper
- error package
- rfctime.DateOnly
- rfctime.HMSTimeOnly
- rfctime.NanoTimeOnly

8
cursortoken/direction.go Normal file
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@ -0,0 +1,8 @@
package cursortoken
type SortDirection string //@enum:type
const (
SortASC SortDirection = "ASC"
SortDESC SortDirection = "DESC"
)

10
cursortoken/filter.go Normal file
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@ -0,0 +1,10 @@
package cursortoken
import (
"go.mongodb.org/mongo-driver/mongo"
)
type Filter interface {
FilterQuery() mongo.Pipeline
Pagination() (string, SortDirection, *string, *SortDirection)
}

184
cursortoken/token.go Normal file
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@ -0,0 +1,184 @@
package cursortoken
import (
"encoding/base32"
"encoding/json"
"errors"
"go.mongodb.org/mongo-driver/bson/primitive"
"strings"
"time"
)
type Mode string
const (
CTMStart Mode = "START"
CTMNormal Mode = "NORMAL"
CTMEnd Mode = "END"
)
type Extra struct {
Timestamp *time.Time
Id *string
Page *int
PageSize *int
}
type CursorToken struct {
Mode Mode
ValuePrimary string
ValueSecondary string
Direction SortDirection
DirectionSecondary SortDirection
PageSize int
Extra Extra
}
type cursorTokenSerialize struct {
ValuePrimary *string `json:"v1,omitempty"`
ValueSecondary *string `json:"v2,omitempty"`
Direction *SortDirection `json:"dir,omitempty"`
DirectionSecondary *SortDirection `json:"dir2,omitempty"`
PageSize *int `json:"size,omitempty"`
ExtraTimestamp *time.Time `json:"ts,omitempty"`
ExtraId *string `json:"id,omitempty"`
ExtraPage *int `json:"pg,omitempty"`
ExtraPageSize *int `json:"sz,omitempty"`
}
func Start() CursorToken {
return CursorToken{
Mode: CTMStart,
ValuePrimary: "",
ValueSecondary: "",
Direction: "",
DirectionSecondary: "",
PageSize: 0,
Extra: Extra{},
}
}
func End() CursorToken {
return CursorToken{
Mode: CTMEnd,
ValuePrimary: "",
ValueSecondary: "",
Direction: "",
DirectionSecondary: "",
PageSize: 0,
Extra: Extra{},
}
}
func (c *CursorToken) Token() string {
if c.Mode == CTMStart {
return "@start"
}
if c.Mode == CTMEnd {
return "@end"
}
// We kinda manually implement omitempty for the CursorToken here
// because omitempty does not work for time.Time and otherwise we would always
// get weird time values when decoding a token that initially didn't have an Timestamp set
// For this usecase we treat Unix=0 as an empty timestamp
sertok := cursorTokenSerialize{}
if c.ValuePrimary != "" {
sertok.ValuePrimary = &c.ValuePrimary
}
if c.ValueSecondary != "" {
sertok.ValueSecondary = &c.ValueSecondary
}
if c.Direction != "" {
sertok.Direction = &c.Direction
}
if c.DirectionSecondary != "" {
sertok.DirectionSecondary = &c.DirectionSecondary
}
if c.PageSize != 0 {
sertok.PageSize = &c.PageSize
}
sertok.ExtraTimestamp = c.Extra.Timestamp
sertok.ExtraId = c.Extra.Id
sertok.ExtraPage = c.Extra.Page
sertok.ExtraPageSize = c.Extra.PageSize
body, err := json.Marshal(sertok)
if err != nil {
panic(err)
}
return "tok_" + base32.StdEncoding.EncodeToString(body)
}
func Decode(tok string) (CursorToken, error) {
if tok == "" {
return Start(), nil
}
if strings.ToLower(tok) == "@start" {
return Start(), nil
}
if strings.ToLower(tok) == "@end" {
return End(), nil
}
if !strings.HasPrefix(tok, "tok_") {
return CursorToken{}, errors.New("could not decode token, missing prefix")
}
body, err := base32.StdEncoding.DecodeString(tok[len("tok_"):])
if err != nil {
return CursorToken{}, err
}
var tokenDeserialize cursorTokenSerialize
err = json.Unmarshal(body, &tokenDeserialize)
if err != nil {
return CursorToken{}, err
}
token := CursorToken{Mode: CTMNormal}
if tokenDeserialize.ValuePrimary != nil {
token.ValuePrimary = *tokenDeserialize.ValuePrimary
}
if tokenDeserialize.ValueSecondary != nil {
token.ValueSecondary = *tokenDeserialize.ValueSecondary
}
if tokenDeserialize.Direction != nil {
token.Direction = *tokenDeserialize.Direction
}
if tokenDeserialize.DirectionSecondary != nil {
token.DirectionSecondary = *tokenDeserialize.DirectionSecondary
}
if tokenDeserialize.PageSize != nil {
token.PageSize = *tokenDeserialize.PageSize
}
token.Extra.Timestamp = tokenDeserialize.ExtraTimestamp
token.Extra.Id = tokenDeserialize.ExtraId
token.Extra.Page = tokenDeserialize.ExtraPage
token.Extra.PageSize = tokenDeserialize.ExtraPageSize
return token, nil
}
func (c *CursorToken) ValuePrimaryObjectId() (primitive.ObjectID, bool) {
if oid, err := primitive.ObjectIDFromHex(c.ValuePrimary); err == nil {
return oid, true
} else {
return primitive.ObjectID{}, false
}
}
func (c *CursorToken) ValueSecondaryObjectId() (primitive.ObjectID, bool) {
if oid, err := primitive.ObjectIDFromHex(c.ValueSecondary); err == nil {
return oid, true
} else {
return primitive.ObjectID{}, false
}
}

16
go.mod
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@ -3,12 +3,22 @@ module gogs.mikescher.com/BlackForestBytes/goext
go 1.19 go 1.19
require ( require (
github.com/jmoiron/sqlx v1.3.5
go.mongodb.org/mongo-driver v1.11.1
golang.org/x/crypto v0.4.0
golang.org/x/sys v0.3.0 golang.org/x/sys v0.3.0
golang.org/x/term v0.3.0 golang.org/x/term v0.3.0
) )
require ( require (
github.com/jmoiron/sqlx v1.3.5 // indirect github.com/golang/snappy v0.0.1 // indirect
go.mongodb.org/mongo-driver v1.11.1 // indirect github.com/klauspost/compress v1.13.6 // indirect
golang.org/x/crypto v0.4.0 // indirect github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/xdg-go/pbkdf2 v1.0.0 // indirect
github.com/xdg-go/scram v1.1.1 // indirect
github.com/xdg-go/stringprep v1.0.3 // indirect
github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
golang.org/x/text v0.5.0 // indirect
) )

27
go.sum
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@ -1,25 +1,43 @@
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg= github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q= github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=
github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/jmoiron/sqlx v1.3.5 h1:vFFPA71p1o5gAeqtEAwLU4dnX2napprKtHr7PYIcN3g= github.com/jmoiron/sqlx v1.3.5 h1:vFFPA71p1o5gAeqtEAwLU4dnX2napprKtHr7PYIcN3g=
github.com/jmoiron/sqlx v1.3.5/go.mod h1:nRVWtLre0KfCLJvgxzCsLVMogSvQ1zNJtpYr2Ccp0mQ= github.com/jmoiron/sqlx v1.3.5/go.mod h1:nRVWtLre0KfCLJvgxzCsLVMogSvQ1zNJtpYr2Ccp0mQ=
github.com/klauspost/compress v1.13.6 h1:P76CopJELS0TiO2mebmnzgWaajssP/EszplttgQxcgc=
github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk= github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/lib/pq v1.2.0 h1:LXpIM/LZ5xGFhOpXAQUIMM1HdyqzVYM13zNdjCEEcA0=
github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo= github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/mattn/go-sqlite3 v1.14.6 h1:dNPt6NO46WmLVt2DLNpwczCmdV5boIZ6g/tlDrlRUbg=
github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU= github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe h1:iruDEfMl2E6fbMZ9s0scYfZQ84/6SPL6zC8ACM2oIL0=
github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc= github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/tidwall/pretty v1.0.0 h1:HsD+QiTn7sK6flMKIvNmpqz1qrpP3Ps6jOKIKMooyg4=
github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk= github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=
github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI= github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI=
github.com/xdg-go/scram v1.1.1 h1:VOMT+81stJgXW3CpHyqHN3AXDYIMsx56mEFrB37Mb/E=
github.com/xdg-go/scram v1.1.1/go.mod h1:RaEWvsqvNKKvBPvcKeFjrG2cJqOkHTiyTpzz23ni57g= github.com/xdg-go/scram v1.1.1/go.mod h1:RaEWvsqvNKKvBPvcKeFjrG2cJqOkHTiyTpzz23ni57g=
github.com/xdg-go/stringprep v1.0.3 h1:kdwGpVNwPFtjs98xCGkHjQtGKh86rDcRZN17QEMCOIs=
github.com/xdg-go/stringprep v1.0.3/go.mod h1:W3f5j4i+9rC0kuIEJL0ky1VpHXQU3ocBgklLGvcBnW8= github.com/xdg-go/stringprep v1.0.3/go.mod h1:W3f5j4i+9rC0kuIEJL0ky1VpHXQU3ocBgklLGvcBnW8=
github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d h1:splanxYIlg+5LfHAM6xpdFEAYOk8iySO56hMFq6uLyA=
github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d/go.mod h1:rHwXgn7JulP+udvsHwJoVG1YGAP6VLg4y9I5dyZdqmA= github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d/go.mod h1:rHwXgn7JulP+udvsHwJoVG1YGAP6VLg4y9I5dyZdqmA=
go.mongodb.org/mongo-driver v1.11.1 h1:QP0znIRTuL0jf1oBQoAoM0C6ZJfBK4kx0Uumtv1A7w8= go.mongodb.org/mongo-driver v1.11.1 h1:QP0znIRTuL0jf1oBQoAoM0C6ZJfBK4kx0Uumtv1A7w8=
go.mongodb.org/mongo-driver v1.11.1/go.mod h1:s7p5vEtfbeR1gYi6pnj3c3/urpbLv2T5Sfd6Rp2HBB8= go.mongodb.org/mongo-driver v1.11.1/go.mod h1:s7p5vEtfbeR1gYi6pnj3c3/urpbLv2T5Sfd6Rp2HBB8=
@ -27,24 +45,25 @@ golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0
golang.org/x/crypto v0.4.0 h1:UVQgzMY87xqpKNgb+kDsll2Igd33HszWHFLmpaRMq/8= golang.org/x/crypto v0.4.0 h1:UVQgzMY87xqpKNgb+kDsll2Igd33HszWHFLmpaRMq/8=
golang.org/x/crypto v0.4.0/go.mod h1:3quD/ATkf6oY+rnes5c3ExXTbLc8mueNue5/DoinL80= golang.org/x/crypto v0.4.0/go.mod h1:3quD/ATkf6oY+rnes5c3ExXTbLc8mueNue5/DoinL80=
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ= golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.1.0 h1:g6Z6vPFA9dYBAF7DWcH6sCcOntplXsDKcliusYijMlw=
golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.3.0 h1:qoo4akIqOcDME5bhc/NgxUdovd6BSS2uMsVjB56q1xI= golang.org/x/term v0.3.0 h1:qoo4akIqOcDME5bhc/NgxUdovd6BSS2uMsVjB56q1xI=
golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA= golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.5.0 h1:OLmvp0KP+FVG99Ct/qFiL/Fhk4zp4QQnZ7b2U+5piUM=
golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

View File

@ -4,7 +4,7 @@ import (
"reflect" "reflect"
) )
var reflectBasicTypes = []reflect.Type{ var reflectBasicTypes = map[reflect.Kind]reflect.Type{
reflect.Bool: reflect.TypeOf(false), reflect.Bool: reflect.TypeOf(false),
reflect.Int: reflect.TypeOf(int(0)), reflect.Int: reflect.TypeOf(int(0)),
reflect.Int8: reflect.TypeOf(int8(0)), reflect.Int8: reflect.TypeOf(int8(0)),
@ -109,3 +109,28 @@ func TryCast[T any](v any) (T, bool) {
return r4, true return r4, true
} }
func TryCastType(v any, dest reflect.Type) (any, bool) {
underlying := Underlying(reflect.TypeOf(v))
if underlying != Underlying(dest) {
return nil, false
}
r1 := reflect.ValueOf(v)
if !r1.CanConvert(underlying) {
return nil, false
}
r2 := r1.Convert(underlying)
if !r2.CanConvert(dest) {
return nil, false
}
r4 := r2.Convert(dest)
return r4.Interface(), true
}

View File

@ -1,6 +1,7 @@
package rfctime package rfctime
import ( import (
"gogs.mikescher.com/BlackForestBytes/goext/tst"
"testing" "testing"
"time" "time"
) )

11
wmo/mongo.go Normal file
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@ -0,0 +1,11 @@
package wmo
import "go.mongodb.org/mongo-driver/mongo"
func W[TData any](collection *mongo.Collection) *Coll[TData] {
c := Coll[TData]{coll: collection}
c.init()
return &c
}

69
wmo/pagination.go Normal file
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@ -0,0 +1,69 @@
package wmo
import (
"go.mongodb.org/mongo-driver/bson"
ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
)
func CreatePagination[TData any](coll *Coll[TData], token ct.CursorToken, fieldPrimary string, sortPrimary ct.SortDirection, fieldSecondary *string, sortSecondary *ct.SortDirection, pageSize *int) ([]bson.D, error) {
cond := bson.A{}
sort := bson.D{}
valuePrimary, err := coll.getTokenValueAsMongoType(token.ValuePrimary, fieldPrimary)
if err != nil {
return nil, err
}
if sortPrimary == ct.SortASC {
// We sort ASC on <field> - so we want all entries newer ($gt) than the $primary
cond = append(cond, bson.M{fieldPrimary: bson.M{"$gt": valuePrimary}})
sort = append(sort, bson.E{Key: fieldPrimary, Value: +1})
} else if sortPrimary == ct.SortDESC {
// We sort DESC on <field> - so we want all entries older ($lt) than the $primary
cond = append(cond, bson.M{fieldPrimary: bson.M{"$lt": valuePrimary}})
sort = append(sort, bson.E{Key: fieldPrimary, Value: -1})
}
if fieldSecondary != nil && sortSecondary != nil && *fieldSecondary != fieldPrimary {
valueSecondary, err := coll.getTokenValueAsMongoType(token.ValueSecondary, *fieldSecondary)
if err != nil {
return nil, err
}
if *sortSecondary == ct.SortASC {
// the conflict-resolution condition, for entries with the _same_ <field> as the $primary we take the ones with a greater $secondary (= newer)
cond = append(cond, bson.M{"$and": bson.A{
bson.M{fieldPrimary: valuePrimary},
bson.M{*fieldSecondary: bson.M{"$gt": valueSecondary}},
}})
sort = append(sort, bson.E{Key: fieldPrimary, Value: +1})
} else if *sortSecondary == ct.SortDESC {
// the conflict-resolution condition, for entries with the _same_ <field> as the $primary we take the ones with a smaller $secondary (= older)
cond = append(cond, bson.M{"$and": bson.A{
bson.M{fieldPrimary: valuePrimary},
bson.M{*fieldSecondary: bson.M{"$lt": valueSecondary}},
}})
sort = append(sort, bson.E{Key: fieldPrimary, Value: -1})
}
}
pipeline := make([]bson.D, 0, 3)
pipeline = append(pipeline, bson.D{{Key: "$match", Value: bson.M{"$or": cond}}})
pipeline = append(pipeline, bson.D{{Key: "$sort", Value: sort}})
if pageSize != nil {
pipeline = append(pipeline, bson.D{{Key: "$limit", Value: int64(*pageSize + 1)}})
}
return pipeline, nil
}

294
wmo/reflection.go Normal file
View File

@ -0,0 +1,294 @@
package wmo
import (
"errors"
"fmt"
"gogs.mikescher.com/BlackForestBytes/goext/langext"
"reflect"
"strconv"
"time"
)
func (c *Coll[TData]) init() {
c.dataTypeMap = make(map[string]fullTypeRef[TData])
example := *new(TData)
v := reflect.ValueOf(example)
c.initFields("", v, make([]int, 0))
}
func (c *Coll[TData]) initFields(prefix string, rval reflect.Value, idxarr []int) {
rtyp := rval.Type()
for i := 0; i < rtyp.NumField(); i++ {
rsfield := rtyp.Field(i)
rvfield := rval.Field(i)
if !rsfield.IsExported() {
continue
}
bsonkey, found := rsfield.Tag.Lookup("bson")
if !found || bsonkey == "-" {
continue
}
fullKey := prefix + bsonkey
newIdxArr := langext.ArrCopy(idxarr)
newIdxArr = append(newIdxArr, i)
if rvfield.Type().Kind() == reflect.Pointer {
c.dataTypeMap[fullKey] = fullTypeRef[TData]{
IsPointer: true,
Kind: rvfield.Type().Elem().Kind(),
Type: rvfield.Type().Elem(),
UnderlyingType: langext.Underlying(rvfield.Type().Elem()),
Name: rsfield.Name,
Index: newIdxArr,
}
} else {
c.dataTypeMap[fullKey] = fullTypeRef[TData]{
IsPointer: false,
Kind: rvfield.Type().Kind(),
Type: rvfield.Type(),
UnderlyingType: langext.Underlying(rvfield.Type()),
Name: rsfield.Name,
Index: newIdxArr,
}
}
if rvfield.Kind() == reflect.Struct {
c.initFields(fullKey+".", rvfield, newIdxArr)
}
}
}
func (c *Coll[TData]) getTokenValueAsMongoType(value string, fieldName string) (any, error) {
fref := c.dataTypeMap[fieldName]
if fref.IsPointer && value == "" {
pointertype := reflect.New(fref.Type).Type()
nilvalue := reflect.Zero(pointertype)
outvalue := nilvalue.Interface()
return outvalue, nil
}
pointerize := func(v any) any {
if !fref.IsPointer {
return v
}
rval1 := reflect.ValueOf(v)
rval2 := rval1.Convert(fref.Type)
rval3 := reflect.New(fref.Type)
rval3.Elem().Set(rval2)
return rval3.Interface()
}
if fref.UnderlyingType == reflect.TypeOf("") {
rt, ok := langext.TryCastType(value, fref.Type)
if !ok {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from string to %s", fieldName, fref.Type.String()))
}
return pointerize(rt), nil
}
if fref.UnderlyingType == reflect.TypeOf(time.Time{}) {
t, err := time.Parse(time.RFC3339Nano, value)
if err != nil {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as time.Time ('%s')", fieldName, value))
}
rt, ok := langext.TryCastType(t, fref.Type)
if !ok {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from time.Time to %s", fieldName, fref.Type.String()))
}
return pointerize(rt), nil
}
if fref.UnderlyingType == reflect.TypeOf(int(0)) {
t, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as int64 ('%s')", fieldName, value))
}
rt, ok := langext.TryCastType(int(t), fref.Type)
if !ok {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from int to %s", fieldName, fref.Type.String()))
}
return pointerize(rt), nil
}
if fref.UnderlyingType == reflect.TypeOf(int32(0)) {
t, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as int32 ('%s')", fieldName, value))
}
rt, ok := langext.TryCastType(int32(t), fref.Type)
if !ok {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from int32 to %s", fieldName, fref.Type.String()))
}
return pointerize(rt), nil
}
if fref.UnderlyingType == reflect.TypeOf(int64(0)) {
t, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as int64 ('%s')", fieldName, value))
}
rt, ok := langext.TryCastType(int64(t), fref.Type)
if !ok {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from int64 to %s", fieldName, fref.Type.String()))
}
return pointerize(rt), nil
}
if fref.UnderlyingType == reflect.TypeOf(float32(0)) {
t, err := strconv.ParseFloat(value, 64)
if err != nil {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as float32 ('%s')", fieldName, value))
}
rt, ok := langext.TryCastType(float32(t), fref.Type)
if !ok {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from float32 to %s", fieldName, fref.Type.String()))
}
return pointerize(rt), nil
}
if fref.UnderlyingType == reflect.TypeOf(float64(0)) {
t, err := strconv.ParseFloat(value, 64)
if err != nil {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' as float64 ('%s')", fieldName, value))
}
rt, ok := langext.TryCastType(float64(t), fref.Type)
if !ok {
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' from float64 to %s", fieldName, fref.Type.String()))
}
return pointerize(rt), nil
}
return nil, errors.New(fmt.Sprintf("failed to parse field '%s' of type %s (%s)", fieldName, fref.Type.String(), fref.UnderlyingType.String()))
}
func (c *Coll[TData]) getFieldValueAsTokenString(entity TData, fieldName string) (string, error) {
fref := c.dataTypeMap[fieldName]
realValue := c.getFieldValue(entity, fieldName)
if langext.IsNil(realValue) {
return "", nil
}
reflValue := reflect.ValueOf(realValue)
if reflValue.Kind() == reflect.Pointer {
reflValue = reflValue.Elem()
realValue = reflValue.Interface()
}
if fref.UnderlyingType == reflect.TypeOf("") {
rt, ok := langext.TryCastType(realValue, reflect.TypeOf(""))
if !ok {
return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to string", fieldName, fref.Type.String()))
}
return rt.(string), nil
}
if fref.UnderlyingType == reflect.TypeOf(time.Time{}) {
rt, ok := langext.TryCastType(realValue, reflect.TypeOf(time.Time{}))
if !ok {
return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to time.Time", fieldName, fref.Type.String()))
}
return rt.(time.Time).Format(time.RFC3339Nano), nil
}
if fref.UnderlyingType == reflect.TypeOf(int(0)) {
rt, ok := langext.TryCastType(realValue, reflect.TypeOf(int(0)))
if !ok {
return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to int", fieldName, fref.Type.String()))
}
return strconv.Itoa(rt.(int)), nil
}
if fref.UnderlyingType == reflect.TypeOf(int32(0)) {
rt, ok := langext.TryCastType(realValue, reflect.TypeOf(int32(0)))
if !ok {
return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to int32", fieldName, fref.Type.String()))
}
return strconv.FormatInt(int64(rt.(int32)), 10), nil
}
if fref.UnderlyingType == reflect.TypeOf(int64(0)) {
rt, ok := langext.TryCastType(realValue, reflect.TypeOf(int64(0)))
if !ok {
return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to int64", fieldName, fref.Type.String()))
}
return strconv.FormatInt(rt.(int64), 10), nil
}
if fref.UnderlyingType == reflect.TypeOf(float32(0)) {
rt, ok := langext.TryCastType(realValue, reflect.TypeOf(float32(0)))
if !ok {
return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to float32", fieldName, fref.Type.String()))
}
return strconv.FormatFloat(float64(rt.(float32)), 'f', -1, 32), nil
}
if fref.UnderlyingType == reflect.TypeOf(float64(0)) {
rt, ok := langext.TryCastType(realValue, reflect.TypeOf(float64(0)))
if !ok {
return "", errors.New(fmt.Sprintf("failed to cast field '%s' from %s to float64", fieldName, fref.Type.String()))
}
return strconv.FormatFloat(rt.(float64), 'f', -1, 64), nil
}
return "", errors.New(fmt.Sprintf("failed to parse field '%s' of type %s (%s)", fieldName, fref.Type.String(), fref.UnderlyingType.String()))
}
func (c *Coll[TData]) getFieldType(fieldName string) fullTypeRef[TData] {
return c.dataTypeMap[fieldName]
}
func (c *Coll[TData]) getFieldValue(data TData, fieldName string) any {
fref := c.dataTypeMap[fieldName]
rval := reflect.ValueOf(data)
return rval.FieldByIndex(fref.Index).Interface()
}

160
wmo/reflection_test.go Normal file
View File

@ -0,0 +1,160 @@
package wmo
import (
"go.mongodb.org/mongo-driver/mongo"
"gogs.mikescher.com/BlackForestBytes/goext/langext"
"gogs.mikescher.com/BlackForestBytes/goext/tst"
"testing"
"time"
)
func TestReflectionGetFieldType(t *testing.T) {
type IDType string
type TestData struct {
ID IDType `bson:"_id"`
CDate time.Time `bson:"cdate"`
Sub struct {
A string `bson:"a"`
} `bson:"sub"`
Str string `bson:"str"`
Ptr *int `bson:"ptr"`
}
coll := W[TestData](&mongo.Collection{})
coll.init()
t0 := time.Now()
d := TestData{
ID: "1",
CDate: t0,
Sub: struct {
A string `bson:"a"`
}{
A: "2",
},
Str: "3",
Ptr: langext.Ptr(4),
}
tst.AssertEqual(t, coll.getFieldType("_id").Kind.String(), "string")
tst.AssertEqual(t, coll.getFieldType("_id").Type.String(), "wmo.IDType")
tst.AssertEqual(t, coll.getFieldType("_id").Name, "ID")
tst.AssertEqual(t, coll.getFieldType("_id").IsPointer, false)
tst.AssertEqual(t, coll.getFieldValue(d, "_id").(IDType), "1")
tst.AssertEqual(t, coll.getFieldType("cdate").Kind.String(), "struct")
tst.AssertEqual(t, coll.getFieldType("cdate").Type.String(), "time.Time")
tst.AssertEqual(t, coll.getFieldType("cdate").Name, "CDate")
tst.AssertEqual(t, coll.getFieldType("cdate").IsPointer, false)
tst.AssertEqual(t, coll.getFieldValue(d, "cdate").(time.Time), t0)
tst.AssertEqual(t, coll.getFieldType("sub.a").Kind.String(), "string")
tst.AssertEqual(t, coll.getFieldType("sub.a").Type.String(), "string")
tst.AssertEqual(t, coll.getFieldType("sub.a").Name, "A")
tst.AssertEqual(t, coll.getFieldType("sub.a").IsPointer, false)
tst.AssertEqual(t, coll.getFieldValue(d, "sub.a").(string), "2")
tst.AssertEqual(t, coll.getFieldType("str").Kind.String(), "string")
tst.AssertEqual(t, coll.getFieldType("str").Type.String(), "string")
tst.AssertEqual(t, coll.getFieldType("str").Name, "Str")
tst.AssertEqual(t, coll.getFieldType("str").IsPointer, false)
tst.AssertEqual(t, coll.getFieldValue(d, "str").(string), "3")
tst.AssertEqual(t, coll.getFieldType("ptr").Kind.String(), "int")
tst.AssertEqual(t, coll.getFieldType("ptr").Type.String(), "int")
tst.AssertEqual(t, coll.getFieldType("ptr").Name, "Ptr")
tst.AssertEqual(t, coll.getFieldType("ptr").IsPointer, true)
tst.AssertEqual(t, *coll.getFieldValue(d, "ptr").(*int), 4)
}
func TestReflectionGetTokenValueAsMongoType(t *testing.T) {
type IDType string
type TestData struct {
ID IDType `bson:"_id"`
CDate time.Time `bson:"cdate"`
Sub struct {
A string `bson:"a"`
} `bson:"sub"`
Str string `bson:"str"`
Ptr *int `bson:"ptr"`
Num int `bson:"num"`
}
coll := W[TestData](&mongo.Collection{})
coll.init()
gtvasmt := func(value string, fieldName string) any {
v, err := coll.getTokenValueAsMongoType(value, fieldName)
if err != nil {
t.Errorf("%s", "failed to getTokenValueAsMongoType")
}
return v
}
tst.AssertEqual(t, gtvasmt("hello", "str").(string), "hello")
tst.AssertEqual(t, gtvasmt("4", "num").(int), 4)
tst.AssertEqual(t, gtvasmt("asdf", "_id").(IDType), "asdf")
tst.AssertEqual(t, gtvasmt("", "ptr").(*int), nil)
tst.AssertEqual(t, *(gtvasmt("123", "ptr").(*int)), 123)
}
func TestReflectionGetFieldValueAsTokenString(t *testing.T) {
type IDType string
type TestData struct {
ID IDType `bson:"_id"`
CDate time.Time `bson:"cdate"`
Sub struct {
A string `bson:"a"`
} `bson:"sub"`
Str string `bson:"str"`
Ptr *int `bson:"ptr"`
Num int `bson:"num"`
Ptr2 *int `bson:"ptr2"`
FFF float64 `bson:"fff"`
}
coll := W[TestData](&mongo.Collection{})
coll.init()
t0 := time.Now()
d := TestData{
ID: "1",
CDate: t0,
Sub: struct {
A string `bson:"a"`
}{
A: "2",
},
Str: "3",
Ptr: langext.Ptr(4),
Num: 22,
FFF: 22.5,
Ptr2: nil,
}
gfvats := func(value TestData, fieldName string) string {
v, err := coll.getFieldValueAsTokenString(value, fieldName)
if err != nil {
t.Errorf("%s", "failed to getTokenValueAsMongoType")
}
return v
}
tst.AssertEqual(t, gfvats(d, "str"), "3")
tst.AssertEqual(t, gfvats(d, "num"), "22")
tst.AssertEqual(t, gfvats(d, "_id"), "1")
tst.AssertEqual(t, gfvats(d, "ptr"), "4")
tst.AssertEqual(t, gfvats(d, "ptr2"), "")
tst.AssertEqual(t, gfvats(d, "fff"), "22.5")
}

231
wmo/wrapper.go Normal file
View File

@ -0,0 +1,231 @@
package wmo
import (
"context"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
ct "gogs.mikescher.com/BlackForestBytes/goext/cursortoken"
"gogs.mikescher.com/BlackForestBytes/goext/langext"
"reflect"
)
type fullTypeRef[TData any] struct {
IsPointer bool
Kind reflect.Kind
Type reflect.Type
UnderlyingType reflect.Type
Name string
Index []int
}
type Coll[TData any] struct {
coll *mongo.Collection
dataTypeMap map[string]fullTypeRef[TData]
}
func (c *Coll[TData]) Collection() *mongo.Collection {
return c.coll
}
func (c *Coll[TData]) Name() string {
return c.coll.Name()
}
func (c *Coll[TData]) Indexes() mongo.IndexView {
return c.coll.Indexes()
}
func (c *Coll[TData]) Drop(ctx context.Context) error {
return c.coll.Drop(ctx)
}
func (c *Coll[TData]) FindOne(ctx context.Context, filter any) (TData, error) {
var res TData
err := c.coll.FindOne(ctx, filter).Decode(&res)
if err != nil {
return *new(TData), err
}
return res, nil
}
func (c *Coll[TData]) FindOneOpt(ctx context.Context, filter any) (*TData, error) {
var res TData
err := c.coll.FindOne(ctx, filter).Decode(&res)
if err == mongo.ErrNoDocuments {
return nil, nil
}
if err != nil {
return nil, err
}
return &res, nil
}
func (c *Coll[TData]) FindOneByID(ctx context.Context, id any) (TData, error) {
var res TData
err := c.coll.FindOne(ctx, bson.M{"_id": id}).Decode(&res)
if err != nil {
return *new(TData), err
}
return res, nil
}
func (c *Coll[TData]) FindOneOptByID(ctx context.Context, id any) (*TData, error) {
var res TData
err := c.coll.FindOne(ctx, bson.M{"_id": id}).Decode(&res)
if err == mongo.ErrNoDocuments {
return nil, nil
}
if err != nil {
return nil, err
}
return &res, nil
}
func (c *Coll[TData]) Find(ctx context.Context, filter any, opts ...*options.FindOptions) ([]TData, error) {
cursor, err := c.coll.Find(ctx, filter, opts...)
if err != nil {
return nil, err
}
res := make([]TData, 0, cursor.RemainingBatchLength())
err = cursor.All(ctx, &res)
if err != nil {
return nil, err
}
return res, nil
}
func (c *Coll[TData]) Aggregate(ctx context.Context, pipeline mongo.Pipeline, opts ...*options.AggregateOptions) ([]TData, error) {
cursor, err := c.coll.Aggregate(ctx, pipeline, opts...)
if err != nil {
return nil, err
}
res := make([]TData, 0, cursor.RemainingBatchLength())
err = cursor.All(ctx, &res)
if err != nil {
return nil, err
}
return res, nil
}
func (c *Coll[TData]) ReplaceOne(ctx context.Context, id any, value TData) error {
_, err := c.coll.UpdateOne(ctx, bson.M{"_id": id}, value)
if err != nil {
return err
}
return nil
}
func (c *Coll[TData]) UpdateOne(ctx context.Context, id any, updateQuery any) error {
_, err := c.coll.UpdateOne(ctx, bson.M{"_id": id}, updateQuery)
if err != nil {
return err
}
return nil
}
func (c *Coll[TData]) UpdateOneAndReturn(ctx context.Context, id any, updateQuery any) (TData, error) {
_, err := c.coll.UpdateOne(ctx, bson.M{"_id": id}, updateQuery)
if err != nil {
return *new(TData), err
}
var res TData
err = c.coll.FindOne(ctx, bson.M{"_id": id}).Decode(&res)
if err != nil {
return *new(TData), err
}
return res, nil
}
func (c *Coll[TData]) DeleteOne(ctx context.Context, id any) error {
_, err := c.coll.DeleteOne(ctx, bson.M{"_id": id})
if err != nil {
return err
}
return nil
}
func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int, inTok ct.CursorToken) ([]TData, ct.CursorToken, error) {
if inTok.Mode == ct.CTMEnd {
return make([]TData, 0), ct.End(), nil
}
pipeline := filter.FilterQuery()
sortPrimary, sortDirPrimary, sortSecondary, sortDirSecondary := filter.Pagination()
paginationPipeline, err := CreatePagination(c, inTok, sortPrimary, sortDirPrimary, sortSecondary, sortDirSecondary, pageSize)
if err != nil {
return nil, ct.CursorToken{}, err
}
pipeline = append(pipeline, paginationPipeline...)
cursor, err := c.coll.Aggregate(ctx, pipeline)
if err != nil {
return nil, ct.CursorToken{}, err
}
entities := make([]TData, 0, cursor.RemainingBatchLength()+1)
for (pageSize == nil || len(entities) != *pageSize) && cursor.Next(ctx) {
var entry TData
err = cursor.Decode(&entry)
if err != nil {
return nil, ct.CursorToken{}, err
}
entities = append(entities, entry)
}
if pageSize == nil || len(entities) <= *pageSize || !cursor.TryNext(ctx) {
return entities, ct.End(), nil
}
last := entities[len(entities)-1]
nextToken, _ := c.createToken(sortPrimary, sortDirPrimary, sortSecondary, sortDirSecondary, last, pageSize)
return entities, nextToken, nil
}
func (c *Coll[TData]) createToken(fieldPrimary string, dirPrimary ct.SortDirection, fieldSecondary *string, dirSecondary *ct.SortDirection, lastEntity TData, pageSize *int) (ct.CursorToken, error) {
valuePrimary, err := c.getFieldValueAsTokenString(lastEntity, fieldPrimary)
if err != nil {
return ct.CursorToken{}, err
}
valueSeconary := ""
if fieldSecondary != nil && dirSecondary != nil {
valueSeconary, err = c.getFieldValueAsTokenString(lastEntity, *fieldSecondary)
if err != nil {
return ct.CursorToken{}, err
}
}
return ct.CursorToken{
Mode: ct.CTMNormal,
ValuePrimary: valuePrimary,
ValueSecondary: valueSeconary,
Direction: dirPrimary,
PageSize: langext.Coalesce(pageSize, 0),
Extra: ct.Extra{},
}, nil
}