diff --git a/example/rel-join-condition/README.md b/example/rel-join-condition/README.md new file mode 100644 index 000000000..e793d5763 --- /dev/null +++ b/example/rel-join-condition/README.md @@ -0,0 +1,9 @@ +# Join condition + +To run this example: + +```shell +go run main.go +``` + +See [docs](https://bun.uptrace.dev/guide/relations.html#has-many-relation) for details. diff --git a/example/rel-join-condition/go.mod b/example/rel-join-condition/go.mod new file mode 100644 index 000000000..fd37a41c3 --- /dev/null +++ b/example/rel-join-condition/go.mod @@ -0,0 +1,46 @@ +module github.com/uptrace/bun/example/rel-join-condition + +go 1.17 + +replace github.com/uptrace/bun => ../.. + +replace github.com/uptrace/bun/extra/bundebug => ../../extra/bundebug + +replace github.com/uptrace/bun/dialect/sqlitedialect => ../../dialect/sqlitedialect + +replace github.com/uptrace/bun/driver/sqliteshim => ../../driver/sqliteshim + +require ( + github.com/uptrace/bun v1.1.5 + github.com/uptrace/bun/dialect/sqlitedialect v1.1.5 + github.com/uptrace/bun/driver/sqliteshim v1.1.5 + github.com/uptrace/bun/extra/bundebug v1.1.5 +) + +require ( + github.com/fatih/color v1.13.0 // indirect + github.com/google/uuid v1.3.0 // indirect + github.com/jinzhu/inflection v1.0.0 // indirect + github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect + github.com/mattn/go-colorable v0.1.12 // indirect + github.com/mattn/go-isatty v0.0.14 // indirect + github.com/mattn/go-sqlite3 v1.14.12 // indirect + github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect + github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc // indirect + github.com/vmihailenco/msgpack/v5 v5.3.5 // indirect + github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect + golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 // indirect + golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6 // indirect + golang.org/x/tools v0.1.10 // indirect + golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f // indirect + lukechampine.com/uint128 v1.2.0 // indirect + modernc.org/cc/v3 v3.36.0 // indirect + modernc.org/ccgo/v3 v3.16.6 // indirect + modernc.org/libc v1.16.8 // indirect + modernc.org/mathutil v1.4.1 // indirect + modernc.org/memory v1.1.1 // indirect + modernc.org/opt v0.1.3 // indirect + modernc.org/sqlite v1.17.2 // indirect + modernc.org/strutil v1.1.1 // indirect + modernc.org/token v1.0.0 // indirect +) diff --git a/example/rel-join-condition/go.sum b/example/rel-join-condition/go.sum new file mode 100644 index 000000000..160e128dd --- /dev/null +++ b/example/rel-join-condition/go.sum @@ -0,0 +1,125 @@ +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/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo= +github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk= +github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w= +github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk= +github.com/google/go-cmp v0.5.3 h1:x95R7cp+rSeeqAMI2knLtQ0DKlaBhv2NrtrOvafPHRo= +github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I= +github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E= +github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc= +github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs= +github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8= +github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc= +github.com/mattn/go-colorable v0.1.12 h1:jF+Du6AlPIjs2BiUiQlKOX0rt3SujHxPnksPKZbaA40= +github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4= +github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU= +github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y= +github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94= +github.com/mattn/go-sqlite3 v1.14.12 h1:TJ1bhYJPV44phC+IMu1u2K/i5RriLTPe+yc68XDJ1Z0= +github.com/mattn/go-sqlite3 v1.14.12/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU= +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/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk= +github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY= +github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc h1:9lRDQMhESg+zvGYmW5DyG0UqvY96Bu5QYsTLvCHdrgo= +github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc/go.mod h1:bciPuU6GHm1iF1pBvUfxfsH0Wmnc2VbpgvbI9ZWuIRs= +github.com/vmihailenco/msgpack/v5 v5.3.5 h1:5gO0H1iULLWGhs2H5tbAHIZTV8/cYafcFOr9znI5mJU= +github.com/vmihailenco/msgpack/v5 v5.3.5/go.mod h1:7xyJ9e+0+9SaZT0Wt1RGleJXzli6Q/V5KbhBonMG9jc= +github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g= +github.com/vmihailenco/tagparser/v2 v2.0.0/go.mod h1:Wri+At7QHww0WTrCBeu4J6bNtoV6mEfg5OIWRZA9qds= +github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= +github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= +golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 h1:kQgndtyPBW/JIYERgdxfwMYh3AVStj88WQTlNDi2a+o= +golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3/go.mod h1:3p9vT2HGsQu2K1YbXdKPJLVgG5VJdoTa1poYQBtP1AY= +golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= +golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= +golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= +golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= +golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/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 v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/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 v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6 h1:nonptSpoQ4vQjyraW20DXPAglgQfVnM9ZC6MmNLMR60= +golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= +golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/text v0.3.3/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/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= +golang.org/x/tools v0.0.0-20201124115921-2c860bdd6e78/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= +golang.org/x/tools v0.1.10 h1:QjFRCZxdOhBJ/UNgnBZLbNV13DlbnK0quyivTnXJM20= +golang.org/x/tools v0.1.10/go.mod h1:Uh6Zz+xoGYZom868N8YTex3t7RhtHDBrE8Gzo9bV56E= +golang.org/x/xerrors 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v1.5.1 h1:RTNHdsrOpeoSeOF4FbzTo8gBYByaJ5xT7NgZ9ZqRiJM= +modernc.org/z v1.5.1/go.mod h1:eWFB510QWW5Th9YGZT81s+LwvaAs3Q2yr4sP0rmLkv8= diff --git a/example/rel-join-condition/main.go b/example/rel-join-condition/main.go new file mode 100644 index 000000000..a132cf46b --- /dev/null +++ b/example/rel-join-condition/main.go @@ -0,0 +1,97 @@ +package main + +import ( + "context" + "database/sql" + "fmt" + "github.com/uptrace/bun" + "github.com/uptrace/bun/dialect/sqlitedialect" + "github.com/uptrace/bun/driver/sqliteshim" + "github.com/uptrace/bun/extra/bundebug" +) + +type Profile struct { + ID int64 `bun:",pk,autoincrement"` + Lang string + Active bool + UserID int64 +} + +// User has many profiles. +type User struct { + ID int64 `bun:",pk,autoincrement"` + Name string + Profiles []*Profile `bun:"rel:has-many,join:id=user_id,join_on: active IS TRUE"` +} + +func main() { + ctx := context.Background() + + sqldb, err := sql.Open(sqliteshim.ShimName, "file::memory:?cache=shared") + if err != nil { + panic(err) + } + + db := bun.NewDB(sqldb, sqlitedialect.New()) + defer db.Close() + + db.AddQueryHook(bundebug.NewQueryHook(bundebug.WithVerbose(true))) + + if err := createSchema(ctx, db); err != nil { + panic(err) + } + + user := new(User) + if err := db.NewSelect(). + Model(user). + Column("user.*"). + Relation("Profiles", func(q *bun.SelectQuery) *bun.SelectQuery { + return q.Where("lang = 'ru'") + }). + OrderExpr("user.id ASC"). + Limit(1). + Scan(ctx); err != nil { + panic(err) + } + + fmt.Printf("user.ID: %d, user.Name: %q\n", user.ID, user.Name) + fmt.Printf("user.Profiles: ") + for _, p := range user.Profiles { + fmt.Printf("%v, ", p) + } + fmt.Println() + // Output: user.ID: 1, user.Name: "user 1" + // user.Profiles: &{2 ru true 1}, +} + +func createSchema(ctx context.Context, db *bun.DB) error { + models := []interface{}{ + (*User)(nil), + (*Profile)(nil), + } + for _, model := range models { + if _, err := db.NewCreateTable().Model(model).Exec(ctx); err != nil { + return err + } + } + + users := []*User{ + {ID: 1, Name: "user 1"}, + {ID: 2, Name: "user 2"}, + } + if _, err := db.NewInsert().Model(&users).Exec(ctx); err != nil { + return err + } + + profiles := []*Profile{ + {ID: 1, Lang: "en", Active: true, UserID: 1}, + {ID: 2, Lang: "ru", Active: true, UserID: 1}, + {ID: 3, Lang: "ru", Active: false, UserID: 1}, + {ID: 4, Lang: "md", Active: false, UserID: 1}, + } + if _, err := db.NewInsert().Model(&profiles).Exec(ctx); err != nil { + return err + } + + return nil +} diff --git a/query_select.go b/query_select.go index c8f20d5ce..e993280d8 100644 --- a/query_select.go +++ b/query_select.go @@ -305,8 +305,32 @@ func (q *SelectQuery) Relation(name string, apply ...func(*SelectQuery) *SelectQ return q } + var apply1, apply2 func(*SelectQuery) *SelectQuery + + if len(join.Relation.Condition) > 0 { + apply1 = func(q *SelectQuery) *SelectQuery { + + for _, opt := range join.Relation.Condition { + q.addWhere(schema.SafeQueryWithSep(opt, nil, " AND ")) + } + + return q + } + } + if len(apply) == 1 { - join.apply = apply[0] + apply2 = apply[0] + } + + join.apply = func(q *SelectQuery) *SelectQuery { + if apply1 != nil { + q = apply1(q) + } + if apply2 != nil { + q = apply2(q) + } + + return q } return q diff --git a/schema/relation.go b/schema/relation.go index 06ef8c05c..6636e26a6 100644 --- a/schema/relation.go +++ b/schema/relation.go @@ -20,6 +20,7 @@ type Relation struct { JoinFields []*Field OnUpdate string OnDelete string + Condition []string PolymorphicField *Field PolymorphicValue string diff --git a/schema/table.go b/schema/table.go index 3abb354be..9493d5085 100644 --- a/schema/table.go +++ b/schema/table.go @@ -479,6 +479,10 @@ func (t *Table) belongsToRelation(field *Field) *Relation { JoinTable: joinTable, } + if field.Tag.HasOption("join_on") { + rel.Condition = field.Tag.Options["join_on"] + } + rel.OnUpdate = "ON UPDATE NO ACTION" if onUpdate, ok := field.Tag.Options["on_update"]; ok { if len(onUpdate) > 1 { @@ -569,6 +573,10 @@ func (t *Table) hasOneRelation(field *Field) *Relation { JoinTable: joinTable, } + if field.Tag.HasOption("join_on") { + rel.Condition = field.Tag.Options["join_on"] + } + if join, ok := field.Tag.Options["join"]; ok { baseColumns, joinColumns := parseRelationJoin(join) for i, baseColumn := range baseColumns { @@ -635,6 +643,11 @@ func (t *Table) hasManyRelation(field *Field) *Relation { Field: field, JoinTable: joinTable, } + + if field.Tag.HasOption("join_on") { + rel.Condition = field.Tag.Options["join_on"] + } + var polymorphicColumn string if join, ok := field.Tag.Options["join"]; ok { @@ -745,6 +758,11 @@ func (t *Table) m2mRelation(field *Field) *Relation { JoinTable: joinTable, M2MTable: m2mTable, } + + if field.Tag.HasOption("join_on") { + rel.Condition = field.Tag.Options["join_on"] + } + var leftColumn, rightColumn string if join, ok := field.Tag.Options["join"]; ok { @@ -888,6 +906,7 @@ func isKnownFieldOption(name string) bool { "autoincrement", "rel", "join", + "join_on", "on_update", "on_delete", "m2m",