Cleaning up null values in json

api/measurements_test.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"database/sql"
 	"testing"
 
 	"github.com/thermokarst/bactdb/models"
@@ -8,6 +9,11 @@ import (
 
 func newMeasurement() *models.Measurement {
 	measurement := models.NewMeasurement()
+	measurement.Id = 1
+	measurement.StrainId = 2
+	measurement.ObservationId = 3
+	measurement.TextMeasurementTypeId = models.NullInt64{sql.NullInt64{Int64: 4, Valid: false}}
+	measurement.UnitTypeId = models.NullInt64{sql.NullInt64{Int64: 5, Valid: true}}
 	return measurement
 }
 

datastore/datastore_test.go

@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"github.com/lib/pq"
+	"github.com/thermokarst/bactdb/models"
 )
 
 func normalizeTime(t ...interface{}) {
@@ -15,9 +16,9 @@ func normalizeTime(t ...interface{}) {
 		case *time.Time:
 			x, _ := v.(*time.Time)
 			*x = x.In(time.UTC)
-		case *pq.NullTime:
+		case *models.NullTime:
-			x, _ := v.(*pq.NullTime)
+			x, _ := v.(*models.NullTime)
-			*x = pq.NullTime{Time: x.Time.In(time.UTC), Valid: x.Valid}
+			*x = models.NullTime{pq.NullTime{Time: x.Time.In(time.UTC), Valid: x.Valid}}
 		}
 	}
 }

datastore/measurements_test.go

@@ -30,8 +30,8 @@ func newMeasurement(t *testing.T, tx *modl.Transaction) *models.Measurement {
 	return &models.Measurement{
 		StrainId:      strain.Id,
 		ObservationId: observation.Id,
-		NumValue:      sql.NullFloat64{Float64: 1.23, Valid: true},
+		NumValue:      models.NullFloat64{sql.NullFloat64{Float64: 1.23, Valid: true}},
-		UnitTypeId:    sql.NullInt64{Int64: unit_type.Id, Valid: true},
+		UnitTypeId:    models.NullInt64{sql.NullInt64{Int64: unit_type.Id, Valid: true}},
 	}
 }
 
@@ -108,7 +108,7 @@ func TestMeasurementsStore_Update_db(t *testing.T) {
 	d := NewDatastore(tx)
 
 	// Tweak it
-	measurement.NumValue = sql.NullFloat64{Float64: 4.56, Valid: true}
+	measurement.NumValue = models.NullFloat64{sql.NullFloat64{Float64: 4.56, Valid: true}}
 	updated, err := d.Measurements.Update(measurement.Id, measurement)
 	if err != nil {
 		t.Fatal(err)

models/client_test.go

@@ -99,9 +99,9 @@ func normalizeTime(t ...interface{}) {
 		case *time.Time:
 			x, _ := v.(*time.Time)
 			*x = x.In(time.UTC)
-		case *pq.NullTime:
+		case *NullTime:
-			x, _ := v.(*pq.NullTime)
+			x, _ := v.(*NullTime)
-			*x = pq.NullTime{Time: x.Time.In(time.UTC), Valid: x.Valid}
+			*x = NullTime{pq.NullTime{Time: x.Time.In(time.UTC), Valid: x.Valid}}
 		}
 	}
 }

models/genera.go

@@ -6,7 +6,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/lib/pq"
 	"github.com/thermokarst/bactdb/router"
 )
 
@@ -16,7 +15,7 @@ type Genus struct {
 	GenusName string    `db:"genus_name" json:"genusName"`
 	CreatedAt time.Time `db:"created_at" json:"createdAt"`
 	UpdatedAt time.Time `db:"updated_at" json:"updatedAt"`
-	DeletedAt pq.NullTime `db:"deleted_at" json:"deletedAt"`
+	DeletedAt NullTime  `db:"deleted_at" json:"deletedAt"`
 }
 
 func NewGenus() *Genus {

models/genera_test.go

@@ -54,7 +54,7 @@ func TestGeneraService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateGenus, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"genusName":"Test Genus","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"genusName":"Test Genus","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -124,7 +124,7 @@ func TestGeneraService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateGenus, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"genusName":"Test Genus Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"genusName":"Test Genus Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)

models/measurements.go

@@ -18,20 +18,20 @@ type Measurement struct {
 	Id                    int64       `json:"id,omitempty"`
 	StrainId              int64       `db:"strain_id" json:"strainId"`
 	ObservationId         int64       `db:"observation_id" json:"observationId"`
-	TextMeasurementTypeId sql.NullInt64   `db:"text_measurement_type_id" json:"textMeasurementTypeId"`
+	TextMeasurementTypeId NullInt64   `db:"text_measurement_type_id" json:"textMeasurementTypeId"`
-	TxtValue              sql.NullString  `db:"txt_value" json:"txtValue"`
+	TxtValue              NullString  `db:"txt_value" json:"txtValue"`
-	NumValue              sql.NullFloat64 `db:"num_value" json:"numValue"`
+	NumValue              NullFloat64 `db:"num_value" json:"numValue"`
-	ConfidenceInterval    sql.NullFloat64 `db:"confidence_interval" json:"confidenceInterval"`
+	ConfidenceInterval    NullFloat64 `db:"confidence_interval" json:"confidenceInterval"`
-	UnitTypeId            sql.NullInt64   `db:"unit_type_id" json:"unitTypeId"`
+	UnitTypeId            NullInt64   `db:"unit_type_id" json:"unitTypeId"`
-	Notes                 sql.NullString  `db:"notes" json:"notes"`
+	Notes                 NullString  `db:"notes" json:"notes"`
-	TestMethodId          sql.NullInt64   `db:"test_method_id" json:"testMethodId"`
+	TestMethodId          NullInt64   `db:"test_method_id" json:"testMethodId"`
 	CreatedAt             time.Time   `db:"created_at" json:"createdAt"`
 	UpdatedAt             time.Time   `db:"updated_at" json:"updatedAt"`
 }
 
 func NewMeasurement() *Measurement {
 	return &Measurement{
-		NumValue: sql.NullFloat64{Float64: 1.23, Valid: true},
+		NumValue: NullFloat64{sql.NullFloat64{Float64: 1.23, Valid: true}},
 	}
 }
 

models/measurements_test.go

@@ -14,7 +14,7 @@ func newMeasurement() *Measurement {
 	measurement.Id = 1
 	measurement.StrainId = 1
 	measurement.ObservationId = 1
-	measurement.UnitTypeId = sql.NullInt64{Int64: 1, Valid: true}
+	measurement.UnitTypeId = NullInt64{sql.NullInt64{Int64: 1, Valid: true}}
 	return measurement
 }
 
@@ -58,7 +58,7 @@ func TestMeasurementService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateMeasurement, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"strainId":1,"observationId":1,"textMeasurementTypeId":{"Int64":0,"Valid":false},"txtValue":{"String":"","Valid":false},"numValue":{"Float64":1.23,"Valid":true},"confidenceInterval":{"Float64":0,"Valid":false},"unitTypeId":{"Int64":1,"Valid":true},"notes":{"String":"","Valid":false},"testMethodId":{"Int64":0,"Valid":false},"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z"}`+"\n")
+		testBody(t, r, `{"id":1,"strainId":1,"observationId":1,"textMeasurementTypeId":null,"txtValue":null,"numValue":1.23,"confidenceInterval":null,"unitTypeId":1,"notes":null,"testMethodId":null,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z"}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -127,13 +127,13 @@ func TestMeasurementService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateMeasurement, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"strainId":1,"observationId":1,"textMeasurementTypeId":{"Int64":0,"Valid":false},"txtValue":{"String":"","Valid":false},"numValue":{"Float64":4.56,"Valid":true},"confidenceInterval":{"Float64":0,"Valid":false},"unitTypeId":{"Int64":1,"Valid":true},"notes":{"String":"","Valid":false},"testMethodId":{"Int64":0,"Valid":false},"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z"}`+"\n")
+		testBody(t, r, `{"id":1,"strainId":1,"observationId":1,"textMeasurementTypeId":null,"txtValue":null,"numValue":4.56,"confidenceInterval":null,"unitTypeId":1,"notes":null,"testMethodId":null,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z"}`+"\n")
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)
 	})
 
 	measurement := newMeasurement()
-	measurement.NumValue = sql.NullFloat64{Float64: 4.56, Valid: true}
+	measurement.NumValue = NullFloat64{sql.NullFloat64{Float64: 4.56, Valid: true}}
 	updated, err := client.Measurements.Update(measurement.Id, measurement)
 	if err != nil {
 		t.Errorf("Measurements.Update returned error: %v", err)

models/observation_types.go

@@ -6,7 +6,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/lib/pq"
 	"github.com/thermokarst/bactdb/router"
 )
 
@@ -16,7 +15,7 @@ type ObservationType struct {
 	ObservationTypeName string    `db:"observation_type_name" json:"observationTypeName"`
 	CreatedAt           time.Time `db:"created_at" json:"createdAt"`
 	UpdatedAt           time.Time `db:"updated_at" json:"updatedAt"`
-	DeletedAt           pq.NullTime `db:"deleted_at" json:"deletedAt"`
+	DeletedAt           NullTime  `db:"deleted_at" json:"deletedAt"`
 }
 
 func NewObservationType() *ObservationType {

models/observation_types_test.go

@@ -54,7 +54,7 @@ func TestObservationTypeService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateObservationType, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"observationTypeName":"Test Obs Type","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"observationTypeName":"Test Obs Type","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -123,7 +123,7 @@ func TestObservationTypeService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateObservationType, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"observationTypeName":"Test Obs Type Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"observationTypeName":"Test Obs Type Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)
 	})

models/observations.go

@@ -6,7 +6,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/lib/pq"
 	"github.com/thermokarst/bactdb/router"
 )
 
@@ -17,7 +16,7 @@ type Observation struct {
 	ObservationTypeId int64     `db:"observation_type_id" json:"observationTypeId"`
 	CreatedAt         time.Time `db:"created_at" json:"createdAt"`
 	UpdatedAt         time.Time `db:"updated_at" json:"updatedAt"`
-	DeletedAt         pq.NullTime `db:"deleted_at" json:"deletedAt"`
+	DeletedAt         NullTime  `db:"deleted_at" json:"deletedAt"`
 }
 
 func NewObservation() *Observation {

models/observations_test.go

@@ -54,7 +54,7 @@ func TestObservationService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateObservation, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"observationName":"Test Observation","observationTypeId":0,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"observationName":"Test Observation","observationTypeId":0,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -123,7 +123,7 @@ func TestObservationService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateObservation, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"observationName":"Test Obs Updated","observationTypeId":0,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"observationName":"Test Obs Updated","observationTypeId":0,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)
 	})

models/species.go

@@ -6,7 +6,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/lib/pq"
 	"github.com/thermokarst/bactdb/router"
 )
 
@@ -17,7 +16,7 @@ type Species struct {
 	SpeciesName string    `db:"species_name" json:"speciesName"`
 	CreatedAt   time.Time `db:"created_at" json:"createdAt"`
 	UpdatedAt   time.Time `db:"updated_at" json:"updatedAt"`
-	DeletedAt   pq.NullTime `db:"deleted_at" json:"deletedAt"`
+	DeletedAt   NullTime  `db:"deleted_at" json:"deletedAt"`
 }
 
 func NewSpecies() *Species {

models/species_test.go

@@ -55,7 +55,7 @@ func TestSpeciesService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateSpecies, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"genusId":1,"speciesName":"Test Species","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"genusId":1,"speciesName":"Test Species","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -124,7 +124,7 @@ func TestSpeciesService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateSpecies, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"genusId":1,"speciesName":"Test Species Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"genusId":1,"speciesName":"Test Species Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)

models/strains.go

@@ -1,13 +1,11 @@
 package models
 
 import (
-	"database/sql"
 	"errors"
 	"net/http"
 	"strconv"
 	"time"
 
-	"github.com/lib/pq"
 	"github.com/thermokarst/bactdb/router"
 )
 
@@ -20,10 +18,10 @@ type Strain struct {
 	Etymology      string     `db:"etymology" json:"etymology"`
 	AccessionBanks string     `db:"accession_banks" json:"accessionBanks"`
 	GenbankEmblDdb string     `db:"genbank_embl_ddb" json:"genbankEmblDdb"`
-	IsolatedFrom   sql.NullString `db:"isolated_from" json:"isolatedFrom"`
+	IsolatedFrom   NullString `db:"isolated_from" json:"isolatedFrom"`
 	CreatedAt      time.Time  `db:"created_at" json:"createdAt"`
 	UpdatedAt      time.Time  `db:"updated_at" json:"updatedAt"`
-	DeletedAt      pq.NullTime    `db:"deleted_at" json:"deletedAt"`
+	DeletedAt      NullTime   `db:"deleted_at" json:"deletedAt"`
 }
 
 func NewStrain() *Strain {

models/strains_test.go

@@ -55,7 +55,7 @@ func TestStrainService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateStrain, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"speciesId":1,"strainName":"Test Strain","strainType":"Test Type","etymology":"Test Etymology","accessionBanks":"Test Accession","genbankEmblDdb":"Test Genbank","isolatedFrom":{"String":"","Valid":false},"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"speciesId":1,"strainName":"Test Strain","strainType":"Test Type","etymology":"Test Etymology","accessionBanks":"Test Accession","genbankEmblDdb":"Test Genbank","isolatedFrom":null,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -124,7 +124,7 @@ func TestStrainService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateStrain, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"speciesId":1,"strainName":"Test Strain Updated","strainType":"Test Type Updated","etymology":"Test Etymology Updated","accessionBanks":"Test Accession Updated","genbankEmblDdb":"Test Genbank Updated","isolatedFrom":{"String":"","Valid":false},"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"speciesId":1,"strainName":"Test Strain Updated","strainType":"Test Type Updated","etymology":"Test Etymology Updated","accessionBanks":"Test Accession Updated","genbankEmblDdb":"Test Genbank Updated","isolatedFrom":null,"createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)
 	})

models/text_measurement_types.go

@@ -6,7 +6,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/lib/pq"
 	"github.com/thermokarst/bactdb/router"
 )
 
@@ -16,7 +15,7 @@ type TextMeasurementType struct {
 	TextMeasurementName string    `db:"text_measurement_name" json:"textMeasurementName"`
 	CreatedAt           time.Time `db:"created_at" json:"createdAt"`
 	UpdatedAt           time.Time `db:"updated_at" json:"updatedAt"`
-	DeletedAt           pq.NullTime `db:"deleted_at" json:"deletedAt"`
+	DeletedAt           NullTime  `db:"deleted_at" json:"deletedAt"`
 }
 
 func NewTextMeasurementType() *TextMeasurementType {

models/text_measurement_types_test.go

@@ -54,7 +54,7 @@ func TestTextMeasurementTypeService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateTextMeasurementType, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"textMeasurementName":"Test Text Measurement Type","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"textMeasurementName":"Test Text Measurement Type","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -123,7 +123,7 @@ func TestTextMeasurementTypeService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateTextMeasurementType, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"textMeasurementName":"Test Text Measurement Type Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"textMeasurementName":"Test Text Measurement Type Updated","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)
 	})

models/types.go

@@ -0,0 +1,131 @@
+package models
+
+import (
+	"bytes"
+	"database/sql"
+	"encoding/json"
+	"time"
+
+	"github.com/lib/pq"
+)
+
+type NullString struct {
+	sql.NullString
+}
+
+func (s *NullString) MarshalJSON() ([]byte, error) {
+	if !s.Valid {
+		return []byte("null"), nil
+	}
+	return json.Marshal(s.String)
+}
+
+func (s *NullString) UnmarshalJSON(b []byte) error {
+	if bytes.Equal(b, []byte("null")) {
+		s.String = ""
+		s.Valid = false
+		return nil
+	}
+	var x interface{}
+	var err error
+	json.Unmarshal(b, &x)
+	switch x.(type) {
+	case float64:
+		err = json.Unmarshal(b, &s.String)
+	case map[string]interface{}:
+		err = json.Unmarshal(b, &s.NullString)
+	}
+	s.Valid = true
+	return err
+}
+
+type NullInt64 struct {
+	sql.NullInt64
+}
+
+func (i *NullInt64) MarshalJSON() ([]byte, error) {
+	if !i.Valid {
+		return []byte("null"), nil
+	}
+	return json.Marshal(i.Int64)
+}
+
+func (i *NullInt64) UnmarshalJSON(b []byte) error {
+	if bytes.Equal(b, []byte("null")) {
+		i.Int64 = 0
+		i.Valid = false
+		return nil
+	}
+	var x interface{}
+	var err error
+	json.Unmarshal(b, &x)
+	switch x.(type) {
+	case float64:
+		err = json.Unmarshal(b, &i.Int64)
+	case map[string]interface{}:
+		err = json.Unmarshal(b, &i.NullInt64)
+	}
+	i.Valid = true
+	return err
+}
+
+type NullFloat64 struct {
+	sql.NullFloat64
+}
+
+func (f *NullFloat64) MarshalJSON() ([]byte, error) {
+	if !f.Valid {
+		return []byte("null"), nil
+	}
+	return json.Marshal(f.Float64)
+}
+
+func (f *NullFloat64) UnmarshalJSON(b []byte) error {
+	if bytes.Equal(b, []byte("null")) {
+		f.Float64 = 0
+		f.Valid = false
+		return nil
+	}
+	var x interface{}
+	var err error
+	json.Unmarshal(b, &x)
+	switch x.(type) {
+	case float64:
+		err = json.Unmarshal(b, &f.Float64)
+	case map[string]interface{}:
+		err = json.Unmarshal(b, &f.NullFloat64)
+	}
+	f.Valid = true
+	return err
+}
+
+type NullTime struct {
+	pq.NullTime
+}
+
+func (t *NullTime) MarshalJSON() ([]byte, error) {
+	if !t.Valid {
+		return []byte("null"), nil
+	}
+	return json.Marshal(t.Time)
+}
+
+func (t *NullTime) UnmarshalJSON(b []byte) error {
+	if bytes.Equal(b, []byte("null")) {
+		var nt time.Time
+		t.Time = nt.In(time.UTC)
+		t.Valid = false
+		return nil
+	}
+	var x interface{}
+	var err error
+	json.Unmarshal(b, &x)
+	switch x.(type) {
+	case time.Time:
+		err = json.Unmarshal(b, &t.Time)
+	case map[string]interface{}:
+		err = json.Unmarshal(b, &t.NullTime)
+	}
+	t.Valid = true
+	return err
+}

models/unit_types.go

@@ -6,7 +6,6 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/lib/pq"
 	"github.com/thermokarst/bactdb/router"
 )
 
@@ -17,7 +16,7 @@ type UnitType struct {
 	Symbol    string    `db:"symbol" json:"symbol"`
 	CreatedAt time.Time `db:"created_at" json:"createdAt"`
 	UpdatedAt time.Time `db:"updated_at" json:"updatedAt"`
-	DeletedAt pq.NullTime `db:"deleted_at" json:"deletedAt"`
+	DeletedAt NullTime  `db:"deleted_at" json:"deletedAt"`
 }
 
 func NewUnitType() *UnitType {

models/unit_types_test.go

@@ -54,7 +54,7 @@ func TestUnitTypeService_Create(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.CreateUnitType, nil), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "POST")
-		testBody(t, r, `{"id":1,"name":"Test Unit Type","symbol":"x","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"name":"Test Unit Type","symbol":"x","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 
 		w.WriteHeader(http.StatusCreated)
 		writeJSON(w, want)
@@ -123,7 +123,7 @@ func TestUnitTypeService_Update(t *testing.T) {
 	mux.HandleFunc(urlPath(t, router.UpdateUnitType, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
 		called = true
 		testMethod(t, r, "PUT")
-		testBody(t, r, `{"id":1,"name":"Test Unit Type Updated","symbol":"x","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+		testBody(t, r, `{"id":1,"name":"Test Unit Type Updated","symbol":"x","createdAt":"0001-01-01T00:00:00Z","updatedAt":"0001-01-01T00:00:00Z","deletedAt":null}`+"\n")
 		w.WriteHeader(http.StatusOK)
 		writeJSON(w, want)
 	})