rev

package module
v0.0.0-...-8835d87 Latest Latest
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 Go to latest Published: Sep 11, 2012 License: MIT Imports: 31 Imported by: 0

README

Revel

This is a port of the amazing Play! framework to the Go language.

It is a high productivity web framework.

Check out the web site.

Build Status

Documentation

Index

Constants

View Source 
const (
	DEV  = "dev"
	PROD = "prod"
)
View Source 
const DefaultFileContentType = "application/octet-stream"

Variables

View Source 
var (
	TypeBinders = make(map[reflect.Type]Binder)
	KindBinders = make(map[reflect.Kind]Binder)
)

These are the lookups to find a Binder for any type of data. The most specific binder found will be used (Type before Kind)

View Source 
var (
	// App details
	AppName    string // e.g. "sample"
	BasePath   string // e.g. "/Users/robfig/gocode/src/revel/sample"
	AppPath    string // e.g. "/Users/robfig/gocode/src/revel/sample/app"
	ViewsPath  string // e.g. "/Users/robfig/gocode/src/revel/sample/app/views"
	ImportPath string // e.g. "revel/sample"

	Config  *MergedConfig
	RunMode string // DEV or PROD

	// Revel installation details
	RevelPath         string // e.g. "/Users/robfig/gocode/src/revel"
	RevelTemplatePath string // e.g. "/Users/robfig/gocode/src/revel/templates"

	DEFAULT = log.New(os.Stderr, "", log.Ldate|log.Ltime|log.Lshortfile)
	TRACE   = DEFAULT
	INFO    = DEFAULT
	WARN    = DEFAULT
	ERROR   = DEFAULT

	// Revel runs every function in this array after init.
	InitHooks []func()
)
View Source 
var (
	MainRouter         *Router
	MainTemplateLoader *TemplateLoader
	MainWatcher        *Watcher
)
View Source 
var (
	// The functions available for use in the templates.
	Funcs = map[string]interface{}{
		"url": ReverseUrl,
		"eq":  func(a, b interface{}) bool { return a == b },
		"set": func(key string, value interface{}, renderArgs map[string]interface{}) template.HTML {
			renderArgs[key] = value
			return template.HTML("")
		},
		"append": func(key string, value interface{}, renderArgs map[string]interface{}) template.HTML {
			if renderArgs[key] == nil {
				renderArgs[key] = []interface{}{value}
			} else {
				renderArgs[key] = append(renderArgs[key].([]interface{}), value)
			}
			return template.HTML("")
		},
		"field": func(name string, renderArgs map[string]interface{}) *Field {
			value, _ := renderArgs["flash"].(map[string]string)[name]
			err, _ := renderArgs["errors"].(map[string]*ValidationError)[name]
			return &Field{
				Name:  name,
				Value: value,
				Error: err,
			}
		},
		"option": func(f *Field, val, label string) template.HTML {
			selected := ""
			if f.Value == val {
				selected = " selected"
			}
			return template.HTML(fmt.Sprintf(`<option value="%s"%s>%s</option>`,
				html.EscapeString(val), selected, html.EscapeString(label)))
		},
		"radio": func(f *Field, val string) template.HTML {
			checked := ""
			if f.Value == val {
				checked = " checked"
			}
			return template.HTML(fmt.Sprintf(`<input type="radio" name="%s" value="%s"%s>`,
				html.EscapeString(f.Name), html.EscapeString(val), checked))
		},

		"pad": func(str string, width int) template.HTML {
			if len(str) >= width {
				return template.HTML(html.EscapeString(str))
			}
			return template.HTML(html.EscapeString(str) + strings.Repeat("&nbsp;", width-len(str)))
		},
	}
)
View Source 
var (
	// Applications can add custom time formats to this array, and they will be
	// automatically attempted when binding a time.Time.
	TimeFormats = []string{"2006-01-02", "2006-01-02 15:04"}
)

Functions

func Bind 

func Bind(params *Params, name string, typ reflect.Type) reflect.Value

Parse the value string into a real Go value. Returns 0 values when things can not be parsed.

func BindFile 

func BindFile(fileHeader *multipart.FileHeader, typ reflect.Type) reflect.Value

func BindValue 

func BindValue(val string, typ reflect.Type) reflect.Value

func CheckInit 

func CheckInit()

func ContainsString 

func ContainsString(list []string, target string) bool

func ContentTypeByFilename 

func ContentTypeByFilename(filename string) string

Returns a MIME content type based on the filename's extension. If no appropriate one is found, returns "application/octet-stream" by default. Additionally, specifies the charset as UTF-8 for text/* types.

func ExecuteTemplate 

func ExecuteTemplate(tmpl ExecutableTemplate, data interface{}) string

Execute a template and returns the result as a string.

func FindMethod 

func FindMethod(recvType reflect.Type, funcVal *reflect.Value) *reflect.Method

Return the reflect.Method, given a Receiver type and Func value.

func Init 

func Init(importPath string, mode string)

func InterceptFunc 

func InterceptFunc(intc InterceptorFunc, when InterceptTime, target interface{})

Install a general interceptor. This can be applied to any Controller. It must have the signature of: 

func example(c *rev.Controller) rev.Result

func InterceptMethod 

func InterceptMethod(intc InterceptorMethod, when InterceptTime)

Install an interceptor method that applies to its own Controller. 

func (c AppController) example() rev.Result
func (c *AppController) example() rev.Result

func MustReadLines 

func MustReadLines(filename string) []string

Reads the lines of the given file. Panics in the case of error.

func NotFound 

func NotFound(req *Request, resp *Response, msg string)

This function is useful if there is no relevant Controller available. It writes the 404 response immediately.

func ParseKeyValueCookie 

func ParseKeyValueCookie(val string, cb func(key, val string))

Takes the raw (escaped) cookie value and parses out key values.

func ReadLines 

func ReadLines(filename string) ([]string, error)

Reads the lines of the given file. Panics in the case of error.

func RegisterController 

func RegisterController(c interface{}, methods []*MethodType)

Register a Controller and its Methods with Revel.

func RegisterPlugin 

func RegisterPlugin(p Plugin)

func RenderError 

func RenderError(req *Request, resp *Response, err error)

func ResolveContentType 

func ResolveContentType(req *http.Request) string

Get the content type. e.g. From "multipart/form-data; boundary=--" to "multipart/form-data" If none is specified, returns "text/html" by default.

func ResolveFormat 

func ResolveFormat(req *http.Request) string

func ReverseUrl 

func ReverseUrl(args ...interface{}) string

Return a url capable of invoking a given controller method: "Application.ShowApp 123" => "/app/123"

func Run 

func Run(address string, port int)

Run the server. This is called from the generated main file.

func Sign 

func Sign(message string) string

Sign a given string with the app-configured secret key. Return the signature in base64 (URLEncoding).

Types

type ActionDefinition 

type ActionDefinition struct {
	Host, Method, Url, Action string
	Star                      bool
	Args                      map[string]string
}

func (*ActionDefinition) String 

func (a *ActionDefinition) String() string

type BinaryResult 

type BinaryResult struct {
	Reader   io.Reader
	Name     string
	Length   int64
	Delivery ContentDisposition
}

func (*BinaryResult) Apply 

func (r *BinaryResult) Apply(req *Request, resp *Response)

type Binder 

type Binder func(params *Params, name string, typ reflect.Type) reflect.Value

A Binder translates between string parameters and Go data structures.

Here is an example.

Request: 

url?id=123&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=rob

Action: 

Example.Action(id int, ol []int, ul []string, user User)

Calls: 

Binder(params, "id", int): 123
Binder(params, "ol", []int): {1, 2}
Binder(params, "ul", []string): {"str", "array"}
Binder(params, "user", User): User{Name:"rob"}

Note that only exported struct fields may be bound.

func ValueBinder 

func ValueBinder(f func(value string, typ reflect.Type) reflect.Value) Binder

An adapter for easily making one-key-value binders.

type Check 

type Check interface {
	IsSatisfied(interface{}) bool
	DefaultMessage() string
}

type ContentDisposition 

type ContentDisposition string
var (
	Attachment ContentDisposition = "attachment"
	Inline     ContentDisposition = "inline"
)

type Controller 

type Controller struct {
	Name       string
	Type       *ControllerType
	MethodType *MethodType

	Request  *Request
	Response *Response

	Flash      Flash                  // User cookie, cleared after each request.
	Session    Session                // Session, stored in cookie, signed.
	Params     *Params                // Parameters from URL and form (including multipart).
	Args       map[string]interface{} // Per-request scratch space.
	RenderArgs map[string]interface{} // Args passed to the template.
	Validation *Validation            // Data validation helpers
	Txn        *sql.Tx                // Nil by default, but may be used by the app / plugins
}

func NewAppController 

func NewAppController(req *Request, resp *Response, controllerName, methodName string) (*Controller, reflect.Value)

func NewController 

func NewController(req *Request, resp *Response, ct *ControllerType) *Controller

func (*Controller) FlashParams 

func (c *Controller) FlashParams()

func (*Controller) Invoke 

func (c *Controller) Invoke(appControllerPtr reflect.Value, method reflect.Value, methodArgs []reflect.Value)

Invoke the given method, save headers/cookies to the response, and apply the result. (e.g. render a template to the response)

func (*Controller) NotFound 

func (c *Controller) NotFound(msg string) Result

func (*Controller) Redirect 

func (c *Controller) Redirect(val interface{}, args ...interface{}) Result

Redirect to an action or to a URL. 

c.Redirect(Controller.Action)
c.Redirect("/controller/action")
c.Redirect("/controller/%d/action", id)

func (*Controller) Render 

func (c *Controller) Render(extraRenderArgs ...interface{}) Result

Render a template corresponding to the calling Controller method. Arguments will be added to c.RenderArgs prior to rendering the template. They are keyed on their local identifier.

For example: 

func (c Users) ShowUser(id int) rev.Result {
	 user := loadUser(id)
	 return c.Render(user)
}

This action will render views/Users/ShowUser.html, passing in an extra key-value "user": (User).

func (*Controller) RenderError 

func (c *Controller) RenderError(err error) Result

func (*Controller) RenderFile 

func (c *Controller) RenderFile(file *os.File, delivery ContentDisposition) Result

Return a file, either displayed inline or downloaded as an attachment. The name and size are taken from the file info.

func (*Controller) RenderJson 

func (c *Controller) RenderJson(o interface{}) Result

Uses encoding/json.Marshal to return JSON to the client.

func (*Controller) RenderTemplate 

func (c *Controller) RenderTemplate(templatePath string) Result

A less magical way to render a template. Renders the given template, using the current RenderArgs.

func (*Controller) RenderText 

func (c *Controller) RenderText(text string, objs ...interface{}) Result

Render plaintext in response, printf style.

func (*Controller) RenderXml 

func (c *Controller) RenderXml(o interface{}) Result

Uses encoding/xml.Marshal to return XML to the client.

func (*Controller) SetCookie 

func (c *Controller) SetCookie(cookie *http.Cookie)

func (*Controller) Todo 

func (c *Controller) Todo() Result

Render a "todo" indicating that the action isn't done yet.

type ControllerType 

type ControllerType struct {
	Type    reflect.Type
	Methods []*MethodType
}

func LookupControllerType 

func LookupControllerType(name string) *ControllerType

func (*ControllerType) Method 

func (ct *ControllerType) Method(name string) *MethodType

Searches for a given exported method (case insensitive)

type DiscerningListener 

type DiscerningListener interface {
	Listener
	WatchDir(info os.FileInfo) bool
	WatchFile(basename string) bool
}

DiscerningListener allows the receiver to selectively watch files.

type EmptyPlugin 

type EmptyPlugin struct{}

It provides default (empty) implementations for all the required methods.

func (EmptyPlugin) AfterRequest 

func (p EmptyPlugin) AfterRequest(c *Controller)

func (EmptyPlugin) BeforeRequest 

func (p EmptyPlugin) BeforeRequest(c *Controller)

func (EmptyPlugin) OnAppStart 

func (p EmptyPlugin) OnAppStart()

func (EmptyPlugin) OnException 

func (p EmptyPlugin) OnException(c *Controller, err interface{})

type Error 

type Error struct {
	SourceType               string   // The type of source that failed to build.
	Title, Path, Description string   // Description of the error, as presented to the user.
	Line, Column             int      // Where the error was encountered.
	SourceLines              []string // The entire source file, split into lines.
	MetaError                string   // Error that occurred producing the error page.
}

An error description, used as an argument to the error template.

func (*Error) ContextSource 

func (e *Error) ContextSource() []sourceLine

Returns a snippet of the source around where the error occurred.

func (*Error) Error 

func (e *Error) Error() string

Construct a plaintext version of the error, taking account that fields are optionally set. Returns e.g. Compilation Error (in views/header.html:51): expected right delim in end; got "}"

type ErrorResult 

type ErrorResult struct {
	RenderArgs map[string]interface{}
	// contains filtered or unexported fields
}

This result handles all kinds of error codes (500, 404, ..). It renders the relevant error page (errors/CODE.format, e.g. errors/500.json). If RunMode is "dev", this results in a friendly error page.

func (ErrorResult) Apply 

func (r ErrorResult) Apply(req *Request, resp *Response)

type ExecutableTemplate 

type ExecutableTemplate interface {
	Execute(io.Writer, interface{}) error
}

Add some more methods to the default Template.

type Field 

type Field struct {
	Name, Value string
	Error       *ValidationError
}

func (*Field) Checked 

func (f *Field) Checked(val string) string

Return "checked" if this field.Value matches the provided value

func (*Field) ErrorClass 

func (f *Field) ErrorClass() string

type Flash 

type Flash struct {
	Data, Out map[string]string
}

Flash represents a cookie that gets overwritten on each request. It allows data to be stored across one page at a time. This is commonly used to implement success or error messages. e.g. the Post/Redirect/Get pattern: http://en.wikipedia.org/wiki/Post/Redirect/Get

func (Flash) Error 

func (f Flash) Error(msg string, args ...interface{})

func (Flash) Success 

func (f Flash) Success(msg string, args ...interface{})

type GoTemplate 

type GoTemplate struct {
	*template.Template
	// contains filtered or unexported fields
}

Adapter for Go Templates.

func (GoTemplate) Content 

func (gotmpl GoTemplate) Content() []string

func (GoTemplate) Render 

func (gotmpl GoTemplate) Render(wr io.Writer, arg interface{}) error

return a 'rev.Template' from Go's template.

type InterceptTarget 

type InterceptTarget int
const (
	ALL_CONTROLLERS InterceptTarget = iota
)

type InterceptTime 

type InterceptTime int
const (
	BEFORE InterceptTime = iota
	AFTER
)

type Interception 

type Interception struct {
	When InterceptTime
	// contains filtered or unexported fields
}

func (Interception) Invoke 

func (i Interception) Invoke(val reflect.Value) reflect.Value

Perform the given interception. val is a pointer to the App Controller.

type InterceptorFunc 

type InterceptorFunc func(*Controller) Result

An "interceptor" is a function that is invoked by the framework at a designated time (BEFORE or AFTER) an action invcation.

Since an interceptor may be used across many user Controllers, it is a function that takes the base Controller, rather than a method on a user controller.

An interceptor may optionally return a Result (instead of nil). Depending on when the interceptor was invoked, the response is different: 1. BEFORE: No further interceptors are invoked, and neither is the action. 2. AFTER: Further interceptors are still run. In all cases, any returned Result will take the place of any existing Result. But in the BEFORE case, that returned Result is guaranteed to be final, while in the AFTER case it is possible that a further interceptor could emit its own Result.

Interceptors are called in the order that they are added.

***

Two types of interceptors are provided: Funcs and Methods

Func Interceptors may apply to any / all Controllers. 

func example(*rev.Controller) rev.Result

Method Interceptors are provided so that properties can be set on application controllers. 

func (c AppController) example() rev.Result
func (c *AppController) example() rev.Result

type InterceptorMethod 

type InterceptorMethod interface{}

type Listener 

type Listener interface {
	// Refresh is invoked by the watcher on relevant filesystem events.
	// If the listener returns an error, it is served to the user on the current request.
	Refresh() *Error
}

Listener is an interface for receivers of filesystem events.

type Match 

type Match struct {
	Regexp *regexp.Regexp
}

Requires a string to match a given regex.

func (Match) DefaultMessage 

func (m Match) DefaultMessage() string

func (Match) IsSatisfied 

func (m Match) IsSatisfied(obj interface{}) bool

type Max 

type Max struct {
	Max int
}

func (Max) DefaultMessage 

func (m Max) DefaultMessage() string

func (Max) IsSatisfied 

func (m Max) IsSatisfied(obj interface{}) bool

type MaxSize 

type MaxSize struct {
	Max int
}

Requires an array or string to be at most a given length.

func (MaxSize) DefaultMessage 

func (m MaxSize) DefaultMessage() string

func (MaxSize) IsSatisfied 

func (m MaxSize) IsSatisfied(obj interface{}) bool

type MergedConfig 

type MergedConfig struct {
	*config.Config
	// contains filtered or unexported fields
}

This handles the parsing of application.conf It has a "preferred" section that is checked first for option queries. If the preferred section does not have the option, the DEFAULT section is checked fallback.

func LoadConfig 

func LoadConfig(fname string) (*MergedConfig, error)

func (*MergedConfig) Int 

func (c *MergedConfig) Int(option string) (int, error)

func (*MergedConfig) SetSection 

func (c *MergedConfig) SetSection(section string)

func (*MergedConfig) String 

func (c *MergedConfig) String(option string) (string, error)

type MethodArg 

type MethodArg struct {
	Name string
	Type reflect.Type
}

type MethodType 

type MethodType struct {
	Name           string
	Args           []*MethodArg
	RenderArgNames map[int][]string
	// contains filtered or unexported fields
}

type Min 

type Min struct {
	Min int
}

func (Min) DefaultMessage 

func (m Min) DefaultMessage() string

func (Min) IsSatisfied 

func (m Min) IsSatisfied(obj interface{}) bool

type MinSize 

type MinSize struct {
	Min int
}

Requires an array or string to be at least a given length.

func (MinSize) DefaultMessage 

func (m MinSize) DefaultMessage() string

func (MinSize) IsSatisfied 

func (m MinSize) IsSatisfied(obj interface{}) bool

type Params 

type Params struct {
	url.Values
	Files map[string][]*multipart.FileHeader
	// contains filtered or unexported fields
}

These provide a unified view of the request params. Includes: - URL query string - Form values - File uploads

func ParseParams 

func ParseParams(req *Request) *Params

func (*Params) Bind 

func (p *Params) Bind(name string, typ reflect.Type) reflect.Value

type PlaintextErrorResult 

type PlaintextErrorResult struct {
	// contains filtered or unexported fields
}

func (PlaintextErrorResult) Apply 

func (r PlaintextErrorResult) Apply(req *Request, resp *Response)

This method is used when the template loader or error template is not available.

type Plugin 

type Plugin interface {
	OnAppStart()
	BeforeRequest(c *Controller)
	AfterRequest(c *Controller)
	OnException(c *Controller, err interface{})
}

An plugin that allows the user to inject behavior at various points in the request cycle.

type PluginCollection 

type PluginCollection []Plugin

func (PluginCollection) AfterRequest 

func (plugins PluginCollection) AfterRequest(c *Controller)

func (PluginCollection) BeforeRequest 

func (plugins PluginCollection) BeforeRequest(c *Controller)

func (PluginCollection) OnAppStart 

func (plugins PluginCollection) OnAppStart()

func (PluginCollection) OnException 

func (plugins PluginCollection) OnException(c *Controller, err interface{})

type RedirectToActionResult 

type RedirectToActionResult struct {
	// contains filtered or unexported fields
}

func (*RedirectToActionResult) Apply 

func (r *RedirectToActionResult) Apply(req *Request, resp *Response)

type RedirectToUrlResult 

type RedirectToUrlResult struct {
	// contains filtered or unexported fields
}

func (*RedirectToUrlResult) Apply 

func (r *RedirectToUrlResult) Apply(req *Request, resp *Response)

type RenderJsonResult 

type RenderJsonResult struct {
	// contains filtered or unexported fields
}

func (RenderJsonResult) Apply 

func (r RenderJsonResult) Apply(req *Request, resp *Response)

type RenderTemplateResult 

type RenderTemplateResult struct {
	Template   Template
	RenderArgs map[string]interface{}
}

Action methods return this result to request a template be rendered.

func (*RenderTemplateResult) Apply 

func (r *RenderTemplateResult) Apply(req *Request, resp *Response)

type RenderTextResult 

type RenderTextResult struct {
	// contains filtered or unexported fields
}

func (RenderTextResult) Apply 

func (r RenderTextResult) Apply(req *Request, resp *Response)

type RenderXmlResult 

type RenderXmlResult struct {
	// contains filtered or unexported fields
}

func (RenderXmlResult) Apply 

func (r RenderXmlResult) Apply(req *Request, resp *Response)

type Request 

type Request struct {
	*http.Request
	ContentType string
	Format      string // "html", "xml", "json", or "text"
}

func NewRequest 

func NewRequest(r *http.Request) *Request

type Required 

type Required struct{}

func (Required) DefaultMessage 

func (r Required) DefaultMessage() string

func (Required) IsSatisfied 

func (r Required) IsSatisfied(obj interface{}) bool

type Response 

type Response struct {
	Status      int
	ContentType string

	Out http.ResponseWriter
}

func NewResponse 

func NewResponse(w http.ResponseWriter) *Response

func (*Response) WriteHeader 

func (resp *Response) WriteHeader(defaultStatusCode int, defaultContentType string)

Write the header (for now, just the status code). The status may be set directly by the application (c.Response.Status = 501). if it isn't, then fall back to the provided status code.

type Result 

type Result interface {
	Apply(req *Request, resp *Response)
}

type Route 

type Route struct {
	Method string // e.g. GET
	Path   string // e.g. /app/{id}
	Action string // e.g. Application.ShowApp
	// contains filtered or unexported fields
}

func NewRoute 

func NewRoute(method, path, action string) (r *Route)

Prepares the route to be used in matching.

func (*Route) Match 

func (r *Route) Match(method string, reqPath string) *RouteMatch

Return nil if no match.

type RouteMatch 

type RouteMatch struct {
	Action         string            // e.g. Application.ShowApp
	ControllerName string            // e.g. Application
	MethodName     string            // e.g. ShowApp
	Params         map[string]string // e.g. {id: 123}
	StaticFilename string
}

type Router 

type Router struct {
	Routes []*Route
	// contains filtered or unexported fields
}

func NewRouter 

func NewRouter(routesPath string) *Router

func (*Router) Refresh 

func (router *Router) Refresh() *Error

Refresh re-reads the routes file and re-calculates the routing table. Returns an error if a specified action could not be found.

func (*Router) Reverse 

func (router *Router) Reverse(action string, argValues map[string]string) *ActionDefinition

func (*Router) Route 

func (router *Router) Route(req *http.Request) *RouteMatch

type Session 

type Session map[string]string

A signed cookie (and thus limited to 4kb in size). Restriction: Keys may not have a colon in them.

type Template 

type Template interface {
	Name() string
	Content() []string
	Render(wr io.Writer, arg interface{}) error
}

type TemplateLoader 

type TemplateLoader struct {
	// contains filtered or unexported fields
}

This object handles loading and parsing of templates. Everything below the application's views directory is treated as a template.

func NewTemplateLoader 

func NewTemplateLoader(paths ...string) *TemplateLoader

func (*TemplateLoader) Refresh 

func (loader *TemplateLoader) Refresh() *Error

This scans the views directory and parses all templates as Go Templates. If a template fails to parse, the error is set on the loader. (It's awkward to refresh a single Go Template)

func (*TemplateLoader) Template 

func (loader *TemplateLoader) Template(name string) (Template, error)

Return the Template with the given name. The name is the template's path relative to a template loader root.

An Error is returned if there was any problem with any of the templates. (In this case, if a template is returned, it may still be usable.)

type Validation 

type Validation struct {
	Errors []*ValidationError
	// contains filtered or unexported fields
}

A Validation context manages data validation and error messages.

func (*Validation) Check 

func (v *Validation) Check(obj interface{}, checks ...Check) *ValidationResult

Apply a group of Checks to a field, in order, and return the ValidationResult from the first Check that fails, or the last one that succeeds.

func (*Validation) Clear 

func (v *Validation) Clear()

func (*Validation) ErrorMap 

func (v *Validation) ErrorMap() map[string]*ValidationError

Return the errors mapped by key. If there are multiple validation errors associated with a single key, the first one "wins". (Typically the first validation will be the more basic).

func (*Validation) HasErrors 

func (v *Validation) HasErrors() bool

func (*Validation) Keep 

func (v *Validation) Keep()

func (*Validation) Match 

func (v *Validation) Match(str string, regex *regexp.Regexp) *ValidationResult

func (*Validation) Max 

func (v *Validation) Max(n int, max int) *ValidationResult

func (*Validation) MaxSize 

func (v *Validation) MaxSize(obj interface{}, max int) *ValidationResult

func (*Validation) Min 

func (v *Validation) Min(n int, min int) *ValidationResult

func (*Validation) MinSize 

func (v *Validation) MinSize(obj interface{}, min int) *ValidationResult

func (*Validation) Required 

func (v *Validation) Required(obj interface{}) *ValidationResult

Test that the argument is non-nil and non-empty (if string or list)

type ValidationError 

type ValidationError struct {
	Message, Key string
}

func (*ValidationError) String 

func (e *ValidationError) String() string

Returns the Message.

type ValidationResult 

type ValidationResult struct {
	Error *ValidationError
	Ok    bool
}

A ValidationResult is returned from every validation method. It provides an indication of success, and a pointer to the Error (if any).

func (*ValidationResult) Key 

func (r *ValidationResult) Key(key string) *ValidationResult

func (*ValidationResult) Message 

func (r *ValidationResult) Message(message string) *ValidationResult

type Watcher 

type Watcher struct {
	// contains filtered or unexported fields
}

Watcher allows listeners to register to be notified of changes under a given directory.

func NewWatcher 

func NewWatcher() *Watcher

func (*Watcher) Listen 

func (w *Watcher) Listen(listener Listener, roots ...string)

Listen registers for events within the given root directories (recursively).

func (*Watcher) Notify 

func (w *Watcher) Notify() *Error

Notify causes the watcher to forward any change events to listeners. It returns the first (if any) error returned.

Source Files

View all Source files

Directories

Path Synopsis
The command line tool for running Revel apps.
 The command line tool for running Revel apps.
samples
booking/app/controllers
booking/app/models
chat/app/chatroom
chat/app/controllers
skeleton
app/controllers

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