improved error helpers, fix for invalid column definitions in models

core/config.go

@@ -96,6 +96,20 @@ func NewConfig(path string) *Config {
 
 // LoadConfig read & load configuration file
 func (c *Config) LoadConfig(path string) *Config {
+	return c.LoadConfigFromData(c.GetConfigData(path))
+}
+
+// LoadConfigFromData loads config from byte sequence
+func (c *Config) LoadConfigFromData(data []byte) *Config {
+	if err := yaml.Unmarshal(data, c); err != nil {
+		panic(err)
+	}
+
+	return c
+}
+
+// GetConfigData returns config file data in form of byte sequence
+func (c *Config) GetConfigData(path string) []byte {
 	var err error
 
 	path, err = filepath.Abs(path)
@@ -108,11 +122,7 @@ func (c *Config) LoadConfig(path string) *Config {
 		panic(err)
 	}
 
-	if err = yaml.Unmarshal(source, c); err != nil {
-		panic(err)
-	}
-
-	return c
+	return source
 }
 
 // GetSentryDSN sentry connection dsn

core/engine.go

@@ -1,6 +1,8 @@
 package core
 
 import (
+	"html/template"
+
 	"github.com/gin-gonic/gin"
 	"github.com/op/go-logging"
 )
@@ -84,9 +86,20 @@ func (e *Engine) Prepare() *Engine {
 	return e
 }
 
+// templateFuncMap combines func map for templates
+func (e *Engine) TemplateFuncMap(functions template.FuncMap) template.FuncMap {
+	funcMap := e.LocalizationFuncMap()
+
+	for name, fn := range functions {
+		funcMap[name] = fn
+	}
+
+	return funcMap
+}
+
 // CreateRenderer with translation function
-func (e *Engine) CreateRenderer(callback func(*Renderer)) Renderer {
-	renderer := NewRenderer(e.LocalizationFuncMap())
+func (e *Engine) CreateRenderer(callback func(*Renderer), funcs template.FuncMap) Renderer {
+	renderer := NewRenderer(e.TemplateFuncMap(funcs))
 	callback(&renderer)
 	return renderer
 }

core/error.go

@@ -7,11 +7,25 @@ type ErrorResponse struct {
 	Error string `json:"error"`
 }
 
+// GetErrorResponse returns ErrorResponse with specified status code
+// Usage (with gin):
+//      context.JSON(GetErrorResponse(http.StatusPaymentRequired, "Not enough money"))
+func GetErrorResponse(statusCode int, error string) (int, interface{}) {
+	return statusCode, ErrorResponse{
+		Error: error,
+	}
+}
+
 // BadRequest returns ErrorResponse with code 400
 // Usage (with gin):
 //      context.JSON(BadRequest("invalid data"))
 func BadRequest(error string) (int, interface{}) {
-	return http.StatusBadRequest, ErrorResponse{
-		Error: error,
+	return GetErrorResponse(http.StatusBadRequest, error)
 }
+
+// InternalServerError returns ErrorResponse with code 500
+// Usage (with gin):
+//      context.JSON(BadRequest("invalid data"))
+func InternalServerError(error string) (int, interface{}) {
+	return GetErrorResponse(http.StatusInternalServerError, error)
 }

core/models.go

@@ -21,9 +21,9 @@ type Account struct {
 	ID                  int    `gorm:"primary_key"`
 	ConnectionID        int    `gorm:"column:connection_id" json:"connectionId,omitempty"`
 	Channel             uint64 `gorm:"column:channel; not null; unique" json:"channel,omitempty"`
-	ChannelSettingsHash string `gorm:"column:channel_settings_hash type:varchar(70)" binding:"max=70"`
-	Name                string `gorm:"column:name type:varchar(40)" json:"name,omitempty" binding:"max=40"`
-	Lang                string `gorm:"column:lang type:varchar(2)" json:"lang,omitempty" binding:"max=2"`
+	ChannelSettingsHash string `gorm:"column:channel_settings_hash; type:varchar(70)" binding:"max=70"`
+	Name                string `gorm:"column:name; type:varchar(40)" json:"name,omitempty" binding:"max=40"`
+	Lang                string `gorm:"column:lang; type:varchar(2)" json:"lang,omitempty" binding:"max=2"`
 	CreatedAt           time.Time
 	UpdatedAt           time.Time
 }
@@ -32,8 +32,8 @@ type Account struct {
 type User struct {
 	ID           int    `gorm:"primary_key"`
 	ExternalID   int    `gorm:"column:external_id; not null; unique"`
-	UserPhotoURL string `gorm:"column:user_photo_url type:varchar(255)" binding:"max=255"`
-	UserPhotoID  string `gorm:"column:user_photo_id type:varchar(100)" binding:"max=100"`
+	UserPhotoURL string `gorm:"column:user_photo_url; type:varchar(255)" binding:"max=255"`
+	UserPhotoID  string `gorm:"column:user_photo_id; type:varchar(100)" binding:"max=100"`
 	CreatedAt    time.Time
 	UpdatedAt    time.Time
 }