Jifty

2007/04/01
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 YAPC::Asia 
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3

2007/04/01
⚁
 YAPC::Asia 
⚁
:  !
⚁

3

<@ij1iao> JIT 

4

⚁
?
⚁
:  !
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⚁
⚁
,  !
⚁

9

Jifty

 = 
 = 

18

Jifty = JFDI

19

Jifty = JFDI

Just F*cking Do It

19

Jifty = JFDI

 JFDI

19

Jifty = JFDI

 JFDI
 Doxory!

19

• $ cpan
• cpan> notest install Jifty

20

• $ cpan
• cpan> notest install Jifty
“notest”  .

20

• $ jifty app ‐‐name Doxory

21

• $ jifty app ‐‐name Doxory
• Creating new application Doxory
Creating directory lib
Creating directory lib/Doxory
Creating directory bin
Creating directory etc
Creating directory doc
Creating directory log
Creating directory var
Creating directory var/mason
Creating directory share
Creating directory share/po
Creating directory share/web
Creating directory share/web/templates
Creating directory share/web/static
Creating directory lib/Doxory/Model
Creating directory lib/Doxory/Action
Creating directory t
Creating configuration file Doxory/etc/config.yml

21

bin/jifty
etc/config.yml

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bin/jifty
etc/config.yml
Makefile.PL

22

• $ jifty server

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• INFO ‐ You can connect to your server at
       http://localhost:8888/

23

!

 Doxory.
  (Users)  ?

24

• $ cd Doxory

25

• $ cd Doxory
• $ jifty model ‐‐name User

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• $ cd Doxory
• Writing file t/00‐model‐User.t
Writing file lib/Doxory/Model/User.pm

25

• $ cd Doxory
• Writing file t/00‐model‐User.t
Writing file lib/Doxory/Model/User.pm

• $ vim lib/Doxory/Model/User.pm

25

• package Doxory::Model::User;
• use Jifty::DBI::Schema;
•  
• use Doxory::Record schema {
•  

•  
• };

26

•  
•  
• column name =>
•     label is 'Username',
•     hints is 'Other people see this when you ask questions.',
•     is distinct,
•     is mandatory;
•  
• column email =>
•     label is 'Email',
•     hints is 'We will not sell it to anybody. Honest.',
•     default is '',
•     is immutable;
•  
• };

27

• $ jifty schema ‐‐setup

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• INFO ‐ Generating SQL for application Doxory...
INFO ‐ Using Doxory::Model::User
INFO ‐ Using Jifty::Model::Session
INFO ‐ Using Jifty::Model::Metadata
INFO ‐ Set up version v0.0.1, jifty version 0.701170

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•
$ jifty server &

28

•

28

•

• $ open http://localhost:8888/

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$ jifty model ‐‐name Choice

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Writing file t/00‐model‐Choice.t
Writing file lib/Doxory/Model/Choice.pm

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Writing file t/00‐model‐Choice.t
Writing file lib/Doxory/Model/Choice.pm

$ vim lib/Doxory/Model/Choice.pm

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• package Doxory::Model::Choice;
•  
•     label is 'I need help deciding...',
•     render as 'textarea';
•  
• column a =>
•     label is 'On the one hand',
•     render as 'textarea', is mandatory;

• column b =>
•     label is 'On the other hand',

• column asked_by =>
•     label is 'Asked by',
•     default is defer { Jifty‐>web‐>current_user‐>id },
•     references Doxory::Model::User;
•  
• };
36

• $ jifty schema ‐‐drop‐database ‐‐setup

37

INFO ‐ Using Doxory::Model::Choice

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INFO ‐ Using Doxory::Model::Choice

• $ open http://localhost:8888/

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•$ vim etc/config.yml

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•$ vim etc/config.yml
.

45

•‐‐‐
•framework:
•  Plugins:
•    ‐ SkeletonApp: {}
•    ‐ REST: {}
•    ‐ Halo: {}
•    ‐ ErrorTemplates: {}
•    ‐ CompressedCSSandJS: {}
• 
• 
•
46

•‐‐‐
•framework:
•  Plugins:
•    ‐ REST: {}
•    ‐ Halo: {}
•    ‐ Authentication::Password: {}
•  SkipAccessControl: 1
•
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•‐‐‐
•framework:
•  Plugins:
•    ‐ REST: {}
•    ‐ Halo: {}
•    ‐ Authentication::Password: {}
•  SkipAccessControl: 1
•
 (ACL).

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•$ vim lib/Doxory/Model/User.pm

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•$ vim lib/Doxory/Model/User.pm
 User.pm   mixin.

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•  
•  
•     is immutable; 

• };

•
49

•  
•  
•     is immutable; 

• };

• use Jifty::Plugin::User::Mixin::Model::User;
• use Jifty::Plugin::Authentication::Password::Mixin::Model::User;

50

From: Doxory <>
Date: April 3, 2007 5:43:07 PM JST
To: jesse@bestpractical.com
Subject: Doxory!

( ) Doxory .

, :

http://127.0.0.1:8888/let/jesse%40bestpractical.com/conﬁrm_email/78f28e934cf6c058

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•$ vim lib/Doxory/Dispatcher.pm

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Dispatcher   (View).

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• package Doxory::Dispatcher;
use Jifty::Dispatcher ‐base;

58

•
before '*' => run {
    if (Jifty‐>web‐>current_user‐>id) {

58

•
•         my $top = Jifty‐>web‐>navigation;
        $top‐>child( 'Choices' => url => '/choices' );

58

•
•     }

58

•
•     }
•     elsif ($1 !~ /^login|^signup/) {
        tangent 'login';
    }
};

58

•
•     }
    }
};

• # on '/'        => show '/';

58

•
•     }
    }
};

• # on '/'        => show '/';
• # on '/choices' => show 'choices';

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•$ vim lib/Doxory/View.pm

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•$ vim lib/Doxory/View.pm    
TT2  !
 Mason  !

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• package Doxory::View;
use Jifty::View::Declare ‐base;

61

•
template '/' => page {
    h1 { 'Ask a question!' }

61

•
•     show 'new_choice';

61

•
• };

61

•
• };

• private template new_choice => sub {
    div { form {

61

•
• };

•         my $action = new_action( class => 'CreateChoice' );

61

•
• };

•         render_action( $action => ['name', 'a', 'b'] );

61

•
• };

•         form_submit( label => 'Ask the Crowd!' );

61

•
• };

•     } }

61

•
• };

•     } }
• };

61

column a =>
    label is 'On the one hand',
    render as 'textarea',
    is mandatory;

63

“choices”  .

65


66


67


• template '/' => page { ... };
private template new_choice => sub { ... };

67


• template '/' => page { ... };

• template choices => page {

67


• template '/' => page { ... };

•     h1 { 'My Choices' }
    dl {

67


• template '/' => page { ... };

    dl {
•         my $choices = Doxory::Model::ChoiceCollection‐>new;
        $choices‐>limit(
            column => 'asked_by',
            value  => Jifty‐>web‐>current_user‐>id,
        );

67


• template '/' => page { ... };

    dl {
            column => 'asked_by',
        );
•         while (my $c = $choices‐>next) {
            dt { $c‐>name, ' (', $c‐>asked_by‐>name, ')' }
            dd { b { $c‐>a } em { 'vs' } b { $c‐>b } }
        }
    }
};

67

• $ jifty model ‐‐name Vote

70

• Writing file t/00‐model‐Vote.t
Writing file lib/Doxory/Model/Vote.pm

70

• Writing file t/00‐model‐Vote.t
Writing file lib/Doxory/Model/Vote.pm

• $ vim lib/Doxory/Model/Vote.pm

70

• package Doxory::Model::Vote;

•  
• column choice =>
•     references Doxory::Model::Choice;
•  
• column voter =>

• column suggestion =>
•     valid are qw( a b skip );

• column comments =>
•     label is 'Comments?',
•     render as 'textarea’;
•  
• };

71


74

 /pick  .

74

•

•         $top‐>child( 'Pick!' => url => '/pick' );

•         $top‐>child( 'Choices' => url => '/choices' );
•     }
•         tangent 'login';
    }
• };
•
on '/' => show 'new_choice';

75

• ...
• on pick => run {
•     my $choices = Doxory::Model::ChoiceCollection‐>new;
•     my $votes   = $choices‐>join(
•         type    => 'left',
•         alias1  => 'main',  column1 => 'id',
•         table2  => 'votes', column2 => 'choice',
•     );  
•     $choices‐>limit(
•         leftjoin => $votes, column  => 'voter',
•         value    => Jifty‐>web‐>current_user‐>id,
•     );  
•         alias    => $votes, column  => 'voter',
•         operator => 'IS',   value   => 'NULL',
•     );
•     if (my $c = $choices‐>first) {
•         set choice => $c;
•     }   
•     else {
•         show 'nothing_to_pick';
•     }   
• };
76

• ...
• on pick => run {
•     my $choices = Doxory::Model::ChoiceCollection‐>new;
•     my $votes   = $choices‐>join(
•         type    => 'left',
•         alias1  => 'main',  column1 => 'id',
•         table2  => 'votes', column2 => 'choice',
•     );  
•         leftjoin => $votes, column  => 'voter',
•         value    => Jifty‐>web‐>current_user‐>id,
•     );  
•         alias    => $votes, column  => 'voter',
•         operator => 'IS',   value   => 'NULL',
•     );
•     if (my $c = $choices‐>first) {
•         set choice => $c;
•     }   
“ ”
•     else {
•         show 'nothing_to_pick';
•     }   
• };
76


77


78

• use Jifty::View::Declare ‐base;

template '' => page { ... };
private template choices => sub { ... };

78



• template pick => page {

78



•     my $choice = get('choice');

78



•     my $action = new_action( class => 'CreateVote' );

78



•     my $redir  = new_action(
        class     => "Jifty::Action::Redirect",
        arguments => { url => '/pick' },
    );

78



    );
•     my %args   = (
        choice => $choice‐>id,
        voter  => Jifty‐>web‐>current_user‐>id,
    );

78



    );
•     my %args   = (
    );
•     h1 { $choice‐>asked_by‐>name, ': ', $choice‐>name }

78



    );
•     my %args   = (
    );
•     div { form {

78



    );
•     my %args   = (
    );
•     div { form {
•         my ($x, $y) = map { $action‐>button(
            submit      => [ $action, $redir ],
            label       => $choice‐>$_,
            arguments   => { suggestion => $_, %args },
        ) } ((rand > 0.5) ? ('a', 'b') : ('b', 'a'));

78



    );
•     my %args   = (
    );
•     div { form {
•         my ($x, $y) = map { $action‐>button(
            submit      => [ $action, $redir ],
            label       => $choice‐>$_,
            arguments   => { suggestion => $_, %args },
        ) } ((rand > 0.5) ? ('a', 'b') : ('b', 'a'));

•         span { $x } em { 'or' } span { $y } em { 'or' } span {
            $action‐>button(
                submit      => [ $action, $redir ],
                label       => 'None of the above',
                arguments   => { suggestion => 'skip', %args },
            );
        }

        p { render_param( $action => 'comments' ) }
    } }
};

78


template choices => page { ... };
template pick => page { ... };

79



• template nothing_to_pick => page {
    h1 { "There's nothing for you to pick." }

79



•
    p { "No one you know is angsting about anything.
         Everybody knows where they're going to dinner,
         what to do on their next date and whether to
         drop that class.  You have such lovely and
         well adjusted friends." }

79



•

•     h2 { "Maybe it's time to ask for some advice..." };

79



•

•     h2 { "Maybe it's time to ask for some advice..." };

};

79

•$ vim lib/Doxory/Model/Choice.pm

83

• use Doxory::Record schema { ... }

• sub in_favor_of_a {
•     my $self = shift;
•     $self‐>in_favor_of('a');
• }

• sub in_favor_of_b {
•     my $self = shift;
•     $self‐>in_favor_of('b');
• }

• sub in_favor_of {
•     my ($self, $x) = @_;
•     my $votes = Doxory::Model::VoteCollection‐>new;
•     $votes‐>limit(column => 'choice',     value => $self‐>id);
•     $votes‐>limit(column => 'suggestion', value => $x);
•     return $votes;
• }
•
84


85

...

86

...
    h1 { 'My Choices' }

86

...
•     dl {

86

...
•     dl {
            column => 'asked_by',
        );

86

...
•     dl {
            column => 'asked_by',
        );
            dd {

86

...
•     dl {
            column => 'asked_by',
        );
            dd {

•                 b { $c‐>a, ' (', $c‐>in_favor_of_a‐>count, ')' }

86

...
•     dl {
            column => 'asked_by',
        );
            dd {

•                 em { 'vs' }

86

...
•     dl {
            column => 'asked_by',
        );
            dd {

•                 em { 'vs' }
•                 b { $c‐>b, ' (', $c‐>in_favor_of_b‐>count, ')' }

86

...
•     dl {
            column => 'asked_by',
        );
            dd {

•                 em { 'vs' }
•                 b { $c‐>b, ' (', $c‐>in_favor_of_b‐>count, ')' }

•             }
        }
    }
};
86

!
lib/Doxory/Model/User.pm

88

!
lib/Doxory/Model/Choice.pm

88

!
lib/Doxory/Model/Vote.pm

88

!
lib/Doxory/Dispatcher.pm

88

!
lib/Doxory/Dispatcher.pm
lib/Doxory/View.pm

88

☈ Doxory 
☈

90

☈ Doxory 
☈
☈ ...

90

Doxory 

☈ !

91

Doxory 

☈ !
☈

91

Doxory 

☈ !
☈
☈ vim lib/Doxory/Model/Choice.pm

91


92

• use Regexp::Common 'profanity_us';

92

• sub validate_name {
   my ($self, $name) = @_;

92

   my ($self, $name) = @_;
•
   if ($name =~ /$RE{profanity}/i) {
       return (
           0, 'Would you speak like that '.
              'in front of your mother? *cough*'
       );
   }

92

   my ($self, $name) = @_;
•
   if ($name =~ /$RE{profanity}/i) {
       return (
           0, 'Would you speak like that '.
              'in front of your mother? *cough*'
       );
   }
•
   return 1;
}

92

(Validator)

☈

94

(Validator)

☈
☈

94

(Validator)

☈
☈
☈ !

94

use Regexp::Common 'profanity_us';

• sub canonicalize_name {
•    my ($self, $name) = @_;
•    $name =~ s/$RE{profanity}/**expletives**/gi;
•    return $name;
•}

95

(Canonicalizer)

☈  Model 

97

(Canonicalizer)

☈  Model 
☈  (Autocompleter) 

97

(Canonicalizer)

☈  Model 
☈  (Autocompleter) 
☈ :   Doxory

97


99

.

99

•

•         $top‐>child(   'Pick!'  => url => '/pick' );
•         $top‐>child(   'Choices'  => url => '/choices' );

•     }
    }
• };

• ...

100

•

•         $top‐>child( _('Pick!') => url => '/pick' );
•         $top‐>child( _('Choices') => url => '/choices' );

•     }
    }
• };

• ...

101

•$ vim lib/Doxory/Model/*.pm

102

•$ vim lib/Doxory/Model/*.pm
 label, hints  .

102

•  
•     label is _('I need help deciding...'),
•     render as 'textarea';
•  
• column a =>
•     label is _('On the one hand'),

• column b =>
•     label is _('On the other hand'),

• column asked_by =>
•     label is _('Asked by'),
•     default is defer { Jifty‐>web‐>current_user‐>id },
•  
• };
103

package Doxory::Model::User;
use Jifty::DBI::Schema;
 
use Doxory::Record schema {
 
column name =>
    label is _('Username'),
    hints is _('Other people see this when you ask questions.'),
    is distinct,
    is mandatory;
 
column email =>
    label is _('Email'),
    hints is _('We will not sell it to anybody. Honest.'),
    default is '',
    is distinct,
    is immutable;
 
};

104

• package Doxory::Model::Vote;

•  
• column choice =>
•     references Doxory::Model::Choice;
•  
• column voter =>

• column suggestion =>
•     valid are qw( a b skip );

• column comments =>
•     label is _('Comments?'),
•     render as 'textarea’;
•  
• };

105


106

.

106


    h1 { _('Ask a question!') }
• };

•         form_submit( label => _('Ask the Crowd!') );
•     } }
• };

• ...

107

• $ jifty po ‐‐language zh_tw

108

.

108

.
• INFO ‐ Extracting messages from 'lib/Doxory/Dispatcher.pm'
INFO ‐ Extracting messages from 'lib/Doxory/View.pm'
INFO ‐ Extracting messages from 'lib/Doxory/Model/Choice.pm'
INFO ‐ Extracting messages from 'lib/Doxory/Model/User.pm'
INFO ‐ Extracting messages from 'lib/Doxory/Model/Vote.pm'
INFO ‐ Extracting messages from 'bin/jifty'
INFO ‐ Updating message catalog 'share/po/zh_tw.po'

108

.

• $ vim share/po/zh_tw.po

108

.

• $ vim share/po/zh_tw.po

.

108

msgid ""
msgstr ""
"Content‐Type: text/plain; 
charset=CHARSET
"

• #: lib/Doxory/Model/Choice.pm:9
#: lib/Doxory/View.pm:8
• msgid "I need help deciding..."
msgid "Ask a question!"
• msgstr ""
msgstr ""

• msgid "On the one hand"
msgid "Ask the crowd!"
• msgstr ""
msgstr ""

#: lib/Doxory/Model/Choice.pm:23
• msgid "On the other hand"
msgid "Asked by"
• msgstr ""
msgstr ""

• #: lib/Doxory/Dispatcher.pm:9
#: lib/Doxory/Dispatcher.pm:10
• msgid "Pick!"
msgid "Choices"
• msgstr ""
msgstr ""
•
#: lib/Doxory/Model/Vote.pm:18
msgid "Comments?"
msgstr ""

109

msgid ""
msgstr ""
"Content‐Type: text/plain; 
charset=UTF‐8
"

• msgid "I need help deciding..."
msgid "Ask a question!"
• msgstr " ,  ..."
msgstr " !"

• msgid "On the one hand"
msgid "Ask the crowd!"
• msgstr " ...?"
msgstr " !"

#: lib/Doxory/Model/Choice.pm:23
• msgid "On the other hand"
msgid "Asked by"
• msgstr " ...?"
msgstr " "

• #: lib/Doxory/Dispatcher.pm:9
#: lib/Doxory/Dispatcher.pm:10
• msgid "Pick!"
msgid "Choices"
• msgstr " !"
msgstr " "

•
#: lib/Doxory/Model/Vote.pm:18
msgid "Comments?"
msgstr " ?"

110

• $ b2g.pl ‐p ‐u share/po/zh_tw.po > share/po/zh_cn.po

112

Encode::HanConvert  .


112


• $ vim etc/config.yml

112


.
强设

112

•‐‐‐
•framework:
•  L10N:
•    PoDir: share/po

•
113

•‐‐‐
•framework:
•  L10N:
•    PoDir: share/po
•    Lang: zh‐cn

•
114

HTTP 
Module::Install

117

HTTP 
Module::Install
 PAR 

117

Halo

SQL 
SQL 

119

(DevelMode)

Module::Refresh

120

(DevelMode)

Module::Refresh
Log4Perl 

120

Lighttpd / Apache

121

CSS::Squish 

121

CSS::Squish 
JavaScript::Squish 

121

...

 I18N 

122

...

 I18N 
 Session

122

...

 I18N 
 Session
 (Event) 

122

✈ Wiki UI 

124

✈ Wiki UI 
✈ , 

124

✈ Wiki UI 
✈ , 
✈ ,  , MTV...

124

✈ Wifty
✈ CommitBit

125

✈ Wifty
✈ CommitBit
✈ BabelBee

125

✈ Ping 
✈ Wifty
✈ CommitBit
✈ BabelBee

125

✈ Ping 
✈ Wifty
✈ Chat
✈ CommitBit
✈ BabelBee

125

✈ Ping 
✈ Wifty
✈ Chat
✈ CommitBit
✈ Clock
✈ BabelBee

125

✈ Ping 
✈ Wifty
✈ Chat
✈ CommitBit
✈ Clock
✈ BabelBee
✈ Doxory!
125

Jifty

✈ cpan Jifty

126

Jifty

✈ cpan Jifty
✈ http://svn.jifty.org/svn/jifty.org

126

Jifty

✈ cpan Jifty
✈ http://svn.jifty.org/svn/jifty.org
✈ http://jifty.org/

126

✈ Jifty::Manual::Tutorial

127

✈ irc.freenode.net #jifty

127

✈ irc.freenode.net #jifty
✈ jifty‐devel@lists.jifty.org

127

Anatomy of a Jifty App

131


☺ Model : Columns

131


☺ Action : Parameters

131


☺ Action : Parameters
☺ Template : Fragments

131

More Components

132

More Components

☺ Dispatcher

132

More Components

☺ Dispatcher
☺ ClassLoader

132

More Components

☺ Dispatcher
☺ ClassLoader
☺ Continuations

132

Jifty::DBI

∅ CREATE TABLE

134

Jifty::DBI

∅ CREATE TABLE
∅ ALTER TABLE

134

Jifty::DBI

∅ CREATE TABLE
∅ ALTER TABLE
∅ CREATE FOREIGN KEY

134

Object Relational Mapper

135


∅ SELECT

135


∅ SELECT
∅ INSERT

135


∅ SELECT ∅ UPDATE
∅ INSERT

135


∅ SELECT ∅ UPDATE
∅ INSERT ∅ DELETE

135

Jifty::DBI::Handle

136

Jifty::DBI::Handle

䷗ SQLite

136

Jifty::DBI::Handle

䷗ SQLite
䷗ Postgres

136

Jifty::DBI::Handle

䷗ SQLite ䷗ MySQL
䷗ Postgres

136

Jifty::DBI::Handle

䷗ SQLite ䷗ MySQL
䷗ Postgres ䷗ Oracle

136

Jifty::DBI::Collection

137


䷗ Joins and Limits

137


䷗ Paging = Data::Page

137


䷗ Paging = Data::Page
䷗ Caching = Memcached

137

Jifty::DBI::Schema

138

Jifty::DBI::Schema

䷗ Declarative Columns

138

Jifty::DBI::Schema

䷗ Remember our Doxory?

138

Jifty::DBI::Schema

䷗ Remember our Doxory?
䷗ Time for 0.0.2!

138

• package Doxory::Model::Comment;

since '0.0.2';

139


since '0.0.2';
•
column User  => refers to Doxory::Model:User;
column author => refers to Doxory::Model::User;

139


since '0.0.2';
•
•
column body =>
   label   is 'Content',
   type    is 'Text',
   render  as 'Textarea',
   default is 'First Post!';

139


since '0.0.2';
•
•
column body =>
•
column title =>
   is mandatory,
   label   is 'Title',
   length  is 40,
   hints   is '40 bytes max';

139


since '0.0.2';
•
•
column body =>
•
column title =>
   is mandatory,
   label   is 'Title',
   length  is 40,
   hints   is '40 bytes max';
•
};
139

Database Upgrade

140

Database Upgrade

䷗ Used to be painful

140

Database Upgrade

䷗ Not anymore

140

Database Upgrade

䷗ Not anymore
䷗ Jifty fixed it!

140


141

• (Set version to 0.0.2)

141


141

• Application schema version in database (v0.0.1) 
doesn't match application schema version (0.0.2)
Please run `bin/jifty schema ‐‐setup` to upgrade 
the database.

141

the database.
•
$ jifty schema ‐‐setup

141

the database.
•
• Jifty version 0.605070 up to date.
INFO ‐ Generating SQL to upgrade Doxory
       v0.0.1 database to v0.0.2
INFO ‐ Upgraded to version v0.0.2

141

the database.
•
       v0.0.1 database to v0.0.2
•
$ jifty server

141

the database.
•
       v0.0.1 database to v0.0.2
•
$ jifty server
141

• column tags =>
   since '0.0.3',
   refers to Doxory::Model::TagCollection by 'User';

142

   since '0.0.3',
•
column mood =>
   since '0.0.4',
   default is 'happy',
   valid are
       { display => 'Sad', value => 'sad' },
       { display => 'Happy', value => 'happy' };

142

   since '0.0.3',
•
column mood =>
   since '0.0.4',
   default is 'happy',
   valid are
       { display => 'Sad', value => 'sad' },
       { display => 'Happy', value => 'happy' };
•
column created =>
   since '0.0.5',
   is immutable,
   type is 'timestamp',
   default is literal 'now()',
   filters are 'Jifty::DBI::Filter::DateTime';

142


143

•

143

•
       v0.0.2 database to v0.0.5

143

•
       v0.0.2 database to v0.0.5
•
$ jifty server

143

Action = APIs

145

Action = APIs
⇛ Method Calls

145

Action = APIs
⇛ Method Calls
⇛ Typed named arguments

145

Action = APIs
⇛ Method Calls
⇛ Typed named arguments
⇛ Returns results or errors

145

Action ≠ URLs

146

Action ≠ URLs
⇛ Many actions on one page

146

Action ≠ URLs
⇛ Called with web forms

146

Action ≠ URLs
⇛ Called with web forms
⇛ Sounds like RPC?

146

Action = RPC

147

Action = RPC
⇛ Web form encoding

147

Action = RPC
⇛ XML/YAML encoding

147

Action = RPC
⇛ XML/YAML encoding
⇛ Web services for free!

147

Model ⇛ Action

148

⇛ Doxory::Action::CreateUser

148

⇛ Doxory::Action::SearchUser

148

⇛ Doxory::Action::UpdateUser

148

⇛ Doxory::Action::UpdateUser
⇛ Doxory::Action::DeleteUser

148

Make your own Actions

149

• package Hello::Action::SayHi;
use Jifty::Param::Schema;
use Jifty::Action schema {
 
param name =>
   label is 'Your name?';
 
};

150

• package Hello::Action::SayHi;
use Jifty::Param::Schema;
use Jifty::Action schema {
 
param name =>
   label is 'Your name?';
 
};
•
sub take_action {
   my $self = shift;
   my $name = $self‐>argument_value('name');
   $self‐>result‐>message( "Hello, $name" );
}

150

• <%init>
my $action = Jifty‐>web‐>new_action(
    class => 'SayHi'
);
</%init>

151

• <%init>
my $action = Jifty‐>web‐>new_action(
    class => 'SayHi'
);
</%init>
•
<&|/_elements/wrapper&>
<% Jifty‐>web‐>form‐>start %>
<% $action‐>form_field('name') %>
<% Jifty‐>web‐>form‐>submit %>
<% Jifty‐>web‐>form‐>end %>
</&>

151

• $ curl 
  http://localhost:8888/__jifty/webservices/yaml?
  J:A‐1=SayHi;J:A:F‐name‐1=Jesse

152

• $ curl 
  http://localhost:8888/__jifty/webservices/yaml?
  J:A‐1=SayHi;J:A:F‐name‐1=Jesse
•
1: !!perl/hash:Jifty::Result
  _content: {}
  action_class: Hello::Action::SayHi
  failure: 0
  field_errors:
    name: ~
  field_warnings:
    name: ~
  message: 'Hello, Jesse'

152

Jifty::Dispatcher

154

Dispatcher = Kernel

155

☸ Simple

155

☸ Simple
☸ Declarative

155

☸ Simple
☸ Declarative
☸ Encapsulates view logic

155

Three Stages
☸ Before: Sets up state

156

Three Stages
☸ On: Shows your pages

156

Three Stages
☸ On: Shows your pages
☸ After: Cleans up state

156

Jifty::ClassLoader

157

Scaffolding Bad

158

Scaffolding Bad
☸ Ugly

158

Scaffolding Bad
☸ Ugly
☸ Redundant

158

Scaffolding Bad
☸ Ugly
☸ Redundant
☸ Fragile

158

Scaffolding Bad
☸ Ugly ☸ Annoying
☸ Redundant
☸ Fragile

158

Scaffolding Bad
☸ Redundant ☸ Redundant
☸ Fragile

158

Scaffolding Bad
☸ Redundant ☸ Redundant
☸ Fragile ☸ Redundant

158

Why Empty Classes?

159

☸ Jifty::ClassLoader

159

☸ Auto‐creates classes

159

☸ Auto‐creates classes
☸ Never writes them to disk

159

Auto‐created Classes 

160

☸ Doxory

160

☸ Doxory
☸ Doxory::Record

160

☸ Doxory
☸ Doxory::Record
☸ Doxory::Collection

160

☸ Doxory
☸ Doxory::Record
☸ Doxory::Bootstrap

160

☸ Doxory
☸ Doxory::Record
☸ Doxory::Upgrade

160

☸ Doxory
☸ Doxory::Record
☸ Doxory::Upgrade
☸ Doxory::Dispatcher

160

☸ Doxory
☸ Doxory::Record
☸ Doxory::Upgrade
☸ Doxory::CurrentUser

160

☸ Doxory ☸ Doxory::Model::UserCollecti
on
☸ Doxory::Record
☸ Doxory::Upgrade

160

on
☸ Doxory::Record
☸ Doxory::Action::CreateUser
☸ Doxory::Upgrade

160

on
☸ Doxory::Record
☸ Doxory::Action::CreateUser
☸ Doxory::Action::SearchUser
☸ Doxory::Upgrade

160

Jifty

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Tendances (13)

Jifty