Get an observation.

models/client.go

@@ -21,6 +21,7 @@ type Client struct {
 	Species          SpeciesService
 	Strains          StrainsService
 	ObservationTypes ObservationTypesService
+	Observations     ObservationsService
 
 	// BaseURL for HTTP requests to bactdb's API.
 	BaseURL *url.URL
@@ -53,6 +54,7 @@ func NewClient(httpClient *http.Client) *Client {
 	c.Species = &speciesService{c}
 	c.Strains = &strainsService{c}
 	c.ObservationTypes = &observationTypesService{c}
+	c.Observations = &observationsService{c}
 	return c
 }
 

models/observations.go

@@ -0,0 +1,74 @@
+package models
+
+import (
+	"errors"
+	"strconv"
+	"time"
+
+	"github.com/lib/pq"
+	"github.com/thermokarst/bactdb/router"
+)
+
+// An Observation is a lookup type
+type Observation struct {
+	Id                int64       `json:"id,omitempty"`
+	ObservationName   string      `db:"observation_name" json:"observation_name"`
+	ObservationTypeId int64       `db:"observation_type_id" json:"observation_type_id"`
+	CreatedAt         time.Time   `db:"created_at" json:"created_at"`
+	UpdatedAt         time.Time   `db:"updated_at" json:"updated_at"`
+	DeletedAt         pq.NullTime `db:"deleted_at" json:"deleted_at"`
+}
+
+func NewObservation() *Observation {
+	return &Observation{
+		ObservationName: "Test Observation",
+	}
+}
+
+type ObservationsService interface {
+	// Get an observation
+	Get(id int64) (*Observation, error)
+}
+
+var (
+	ErrObservationNotFound = errors.New("observation not found")
+)
+
+type observationsService struct {
+	client *Client
+}
+
+func (s *observationsService) Get(id int64) (*Observation, error) {
+	strId := strconv.FormatInt(id, 10)
+
+	url, err := s.client.url(router.Observation, map[string]string{"Id": strId}, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", url.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	var observation *Observation
+	_, err = s.client.Do(req, &observation)
+	if err != nil {
+		return nil, err
+	}
+
+	return observation, nil
+}
+
+type MockObservationsService struct {
+	Get_ func(id int64) (*Observation, error)
+}
+
+var _ObservationsService = &MockObservationsService{}
+
+func (s *MockObservationsService) Get(id int64) (*Observation, error) {
+	if s.Get_ == nil {
+		return nil, nil
+	}
+	return s.Get_(id)
+}

models/observations_test.go

@@ -0,0 +1,45 @@
+package models
+
+import (
+	"net/http"
+	"reflect"
+	"testing"
+
+	"github.com/thermokarst/bactdb/router"
+)
+
+func newObservation() *Observation {
+	observation := NewObservation()
+	observation.Id = 1
+	return observation
+}
+
+func TestObservationService_Get(t *testing.T) {
+	setup()
+	defer teardown()
+
+	want := newObservation()
+
+	var called bool
+	mux.HandleFunc(urlPath(t, router.Observation, map[string]string{"Id": "1"}), func(w http.ResponseWriter, r *http.Request) {
+		called = true
+		testMethod(t, r, "GET")
+
+		writeJSON(w, want)
+	})
+
+	observation, err := client.Observations.Get(want.Id)
+	if err != nil {
+		t.Errorf("Observations.Get returned error: %v", err)
+	}
+
+	if !called {
+		t.Fatal("!called")
+	}
+
+	normalizeTime(&want.CreatedAt, &want.UpdatedAt, &want.DeletedAt)
+
+	if !reflect.DeepEqual(observation, want) {
+		t.Errorf("Observations.Get return %+v, want %+v", observation, want)
+	}
+}