Expression Engine | Starck Lin

ExpressionEngine Notes

Coding, Log — Tags: Expression Engine, PHP — Posted by Starck on October 17, 2013

Template

// p.s. embed 無法用 Variable 傳入值.
{embed="path/template"}

// 若要用 Variable 可以改採 Snippet 的方式
// 定義 {layout} -> embed="path/template"
// 使用:
{{layout}}

// p.s. embed 無法用 Variable 傳入值.

{embed="path/template"}

// 若要用 Variable 可以改採 Snippet 的方式

// 定義 {layout} -> embed="path/template"

// 使用:

取得 channel 的文章, 並顯示 channel custom field 值

{exp:channel:entries channel="events" limit="10"}

    {channel_custom_field}

    // 每一次迴圈會使 absolute_count + 1
    {absolute_count}

{/exp:channel:entries}

{exp:channel:entries channel="events" limit="10"}

{channel_custom_field}

// 每一次迴圈會使 absolute_count + 1

{absolute_count}

{/exp:channel:entries}

if tag

{exp:beyond:var_set var='testVar' value='Test123'}

{if '{exp:beyond:var_get var='testVar'}' == 'Test123'}
    if checked!
{/if}

{exp:beyond:var_set var='testVar' value='Test123'}

{if '{exp:beyond:var_get var='testVar'}' == 'Test123'}

if checked!

{/if}

Custom Tags

編寫 Plugin file:

假設我們今天要建立的 Plugin 名稱叫作 Custom

先在 third_party 資料夾底下建立 custom 資料夾命名為 pi.custom.php .

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

// plugin infomation for CP
$plugin_info = array(

    'pi_name'           => 'Custom Plugin',
    'pi_version'        => '1.0',
    'pi_author'         => 'Starck Lin',
    'pi_author_url'     => 'http://beyond.com.tw/',
    'pi_description'    => 'this is a plugin for demo',
    'pi_usage'          =>  Custom::usage()

);

Class Custom {

    function __construct() {
        $this->EE =& get_instance();
    }

    // Single Tag
    // {exp:custom:single_line_tag key='key' value='value'}
    //
    // result: 'key : value'
    function single_line_tag() {
        $key = $this->EE->TMPL->fetch_para('key');
        $value = $this->EE->TMPL->fetch_para('value');
        return $key.' : '.$value;
    }

    // Tag Block
    // {exp:custom:block_tag}
    //   Here is block content: {custom_var}
    // {/exp:custom:block_tag}
    //
    // result: 'Here is block content: This is custom value'
    //
    function block_tag() {
        $vars[] = array(
            'custom_var' => 'This is custom value'
        );
        $block_content = $this->EE->TMPL->tagdata;
        return $this->EE->TMPL->parse_variables($block_content, $vars);
    }
}

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

// plugin infomation for CP

$plugin_info = array(

'pi_name' => 'Custom Plugin',

'pi_version' => '1.0',

'pi_author' => 'Starck Lin',

'pi_author_url' => 'http://beyond.com.tw/',

'pi_description' => 'this is a plugin for demo',

'pi_usage' => Custom::usage()

);

Class Custom {

function __construct() {

$this->EE =& get_instance();

}

// Single Tag

// {exp:custom:single_line_tag key='key' value='value'}

// result: 'key : value'

function single_line_tag() {

$key = $this->EE->TMPL->fetch_para('key');

$value = $this->EE->TMPL->fetch_para('value');

return $key.' : '.$value;

}

// Tag Block

// {exp:custom:block_tag}

// Here is block content: {custom_var}

// {/exp:custom:block_tag}

// result: 'Here is block content: This is custom value'

function block_tag() {

$vars[] = array(

'custom_var' => 'This is custom value'

);

$block_content = $this->EE->TMPL->tagdata;

return $this->EE->TMPL->parse_variables($block_content, $vars);

}

若發現無法使用 $this->EE->TMPL 時

$this->EE->load->library('template',null,'TMPL');

使用 Template::parse_variables_row

$this->EE->TMPL->tagdata = '{path="template/test"}';

$vars['path'] = array('', array('path_variable' => TRUE));
return $this->EE->TMPL->parse_variables_row( $this->EE->TMPL->tagdata, $vars );

$this->EE->TMPL->tagdata = '{path="template/test"}';

$vars['path'] = array('', array('path_variable' => TRUE));

return $this->EE->TMPL->parse_variables_row( $this->EE->TMPL->tagdata, $vars );

使用 Template::parse_variables

$this->EE->TMPL->tagdata = '{path="template/test"}';
$vars[] = array(
    'path' => array('', array('path_variable' => TRUE))
);
return $this->EE->TMPL->parse_variables( $this->EE->TMPL->tagdata, $vars );

$this->EE->TMPL->tagdata = '{path="template/test"}';

$vars[] = array(

'path' => array('', array('path_variable' => TRUE))

);

return $this->EE->TMPL->parse_variables( $this->EE->TMPL->tagdata, $vars );

Module

upd.module_name.php

// 安裝 module 時被呼叫的 method
function __construct() {
    $this->EE =& get_instance();
}

function install() {
    $data = [
        'module_name' => 'Beyond',
        'module_version' => $this->version,
        'has_cp_backend' => 'y',
        'has_publish_fields' => 'y',
        'settings' => ''
    ];
    $this->EE->db->insert('modules', $data);

    // return TRUE or FALSE
    return TRUE:
}
// 解除安裝 module 時被呼叫的 method
function uninstall() {
    $this->EE->db->where('module_name', 'Beyond')->delete('modules');
    // return TRUE or FALSE
    return TRUE;
}

// 安裝 module 時被呼叫的 method

function __construct() {

$this->EE =& get_instance();

}

function install() {

$data = [

'module_name' => 'Beyond',

'module_version' => $this->version,

'has_cp_backend' => 'y',

'has_publish_fields' => 'y',

'settings' => ''

];

$this->EE->db->insert('modules', $data);

// return TRUE or FALSE

return TRUE:

}

// 解除安裝 module 時被呼叫的 method

function uninstall() {

$this->EE->db->where('module_name', 'Beyond')->delete('modules');

// return TRUE or FALSE

return TRUE;

}

mcp.module_name.php

mcp 就是 module 的 controller, 假設一個被請求的 url 如下:

admin.php?D=cp&C=addons_modules&M=show_module_cp&module=beyond&method=

C=addons_modules 代表目前的 Controller 是 expression/controllers/cp/addons_modules.php

M=show_module_cp 代表使用該 controller 的 show_module_cp 這個 method

module=beyond 代表被呼叫的 module id名稱為 beyond (third_party/{module_id})

method= 執行該 module controller 的哪一個 method, 未指定預設會導向 index method


C=addons_modules	代表目前的 Controller 是 expression/controllers/cp/addons_modules.php
M=show_module_cp	代表使用該 controller 的 show_module_cp 這個 method
module=beyond	代表被呼叫的 module id名稱為 beyond (third_party/{module_id})
method=	執行該 module controller 的哪一個 method, 未指定預設會導向 index method

透過指定 method 這個 GET 變數，將改變 module controller 呼叫不同的 method, 另外你也可以外部讀取 template 產生不同的 view, 將這些 templates 放置在 module/views 裡, 透過以下在 module controller 的 method 中回傳:

return $this->EE->load->view('template_name', $vars, TRUE);

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Beyond_mcp {

    function __construct() {
        $this->EE =& get_instance();
        // $this->EE->load('view');
    }

    // admin.php?D=cp&C=addons_modules&M=show_module_cp&module=beyond&method=
    function index() {

        return $this->EE->load->view('index', null, TRUE);

    }

}

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Beyond_mcp {

function __construct() {

$this->EE =& get_instance();

// $this->EE->load('view');

}

// admin.php?D=cp&C=addons_modules&M=show_module_cp&module=beyond&method=

function index() {

return $this->EE->load->view('index', null, TRUE);

}

載入自定義 javascript

// This will load from the current package's javascript director:
// /third_party/my_package/javascript/my_file.js
$this->EE->cp->load_package_js('my_file');

// This will load from the current package's javascript director:

// /third_party/my_package/javascript/my_file.js

$this->EE->cp->load_package_js('my_file');

mod.module_name.php
language/english/module_name_lang.php

Language 檔案定義 $lang 語系變數：

語系中 module_name_module_name 和 module_name_module_description 會出現在 MCP 的安裝 modules 列表上

$lang = array(

    "beyond_module_name"          => 'Beyond Module',
    "beyond_module_description"   => '...', 

);

$lang = array(

"beyond_module_name" => 'Beyond Module',

"beyond_module_description" => '...',

);

How to create or update a Channel Field?

$this->EE->api_channel_fields->update_field((array) $field_data);

returns: (string) The field_id of the updated/created field.

$this->EE->load->library('api'); $this->EE->api->instantiate('channel_fields');

$field_data = array(
        'group_id' => 1,
        'site_id'  => 1,
        // $field_id is optional if you are creating a new field
        // 'field_id'  => 1,
        'field_name' => 'blog_body',
        'field_label' => 'Body',
        'field_type' => 'text',
        'field_order' => 10,
        'field_required' => 'y',
        'field_search' => 'y',
        'field_is_hidden' => 'n',
        'field_instructions' => '',
        'field_maxl' => 128,
        'text_field_fmt' => 'none',
        'text_field_show_fmt' => 'n',
        'text_field_text_direction' => 'ltr',
        'text_field_content_type' => 'all',
        'text_field_show_smileys' => 'n',
        'text_field_show_glossary' => 'n',
        'text_field_show_spellcheck' => 'n',
        'text_field_show_file_selector' => 'n',
        // and other fieldtype-specific settings, see the fieldtype’s display_settings and save_settings methods for more options
);

$this->EE->api_channel_fields->update_field($field_data);

$this->EE->load->library('api'); $this->EE->api->instantiate('channel_fields');

$field_data = array(

'group_id' => 1,

'site_id' => 1,

// $field_id is optional if you are creating a new field

// 'field_id' => 1,

'field_name' => 'blog_body',

'field_label' => 'Body',

'field_type' => 'text',

'field_order' => 10,

'field_required' => 'y',

'field_search' => 'y',

'field_is_hidden' => 'n',

'field_instructions' => '',

'field_maxl' => 128,

'text_field_fmt' => 'none',

'text_field_show_fmt' => 'n',

'text_field_text_direction' => 'ltr',

'text_field_content_type' => 'all',

'text_field_show_smileys' => 'n',

'text_field_show_glossary' => 'n',

'text_field_show_spellcheck' => 'n',

'text_field_show_file_selector' => 'n',

// and other fieldtype-specific settings, see the fieldtype’s display_settings and save_settings methods for more options

);

$this->EE->api_channel_fields->update_field($field_data);

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