pylons mako 摘录笔记
pylons mako笔记
1.
在pylons中设置为utf-8编码
在pylons工程config/environment.py文件最后，添加
tmpl_options['mako.default_filters'] = ['decode.utf8']
2.
${}中间直接是python代码,显示其返回值
this is x: ${x}
pythagorean theorem: ${pow(x,2) + pow(y,2)}
3.
${"this is some text" | u}
u : url编码this+is+some+text
h : html编码
x : xml编码
trim : whitespace trimming, provided by string.strip()
n : disable all default filtering; only filters specified in the local expression tag will be applied.
自定义filter
<%!
def myescape(text):
return "<TAG>" + text + "</TAG>"
%>
Heres some tagged text: ${"text" | myescape}
Or from any Python module:
<%!
import myfilters
%>
Heres some tagged text: ${"text" | myfilters.tagfilter}
默认过滤器
<%page expression_filter="h"/>
Escaped text: ${"<html>some html</html>"}
可以在配置中定义默认的filter
t = TemplateLookup(directories=['/tmp'],
default_filters=['unicode', 'myfilter'],
imports=['from mypackage import myfilter']
禁用其他,只用trim
${'myexpression' | n, trim}
函数也可以用
<%def name="foo()" filter="h, trim">
<b>this is bold</b>
</%def>
4.
控制语句
% for a in ['one', 'two', 'three', 'four', 'five']:
% if a[0] == 't':
its two or three
% elif a[0] == 'f':
four/five
% else:
one
%endif
% endfor
直接编写python代码
<%
x = db.get_resource('foo')
y = [z.element for z in x if x.frobnizzle==5]
%>
模块级别的代码
<%!
import mylib
import re
def filter(text):
return re.sub(r'^@', '', text)
%>
5.
单行注释
## this is a comment.
多行注释
<%doc>
these are comments
more comments
</%doc>
6.
标签
包含,可以有变量
<%include file="foo.txt"/>
<%include file="/foo/bar/${myfile}.txt"/>
定义类似函数html文本段
${account()}
<%def name="account()">
Account for ${username}:<br/>
% for row in accountdata:
Value: ${row}<br/>
% endfor
</%def>
定义该页模板的参数
<%page cached="True" cache_type="memory"/>
名字空间
<%namespace file="functions.html" import="*"/>
<%namespace name="mystuff" file="mystuff.html"/>
${mystuff.somedef(x=5,y=7)}
The <%namespace> tag also supports some of the other semantics of Python's import statement, including pulling names into the local variable space, or using * to represent all names, using the import attribute:
<%namespace file="mystuff.html" import="foo, bar"/>
继承
## base.html
<html>
<body>
<div class="header">
${self.header()}
</div>
${self.body()}
<div class="footer">
${self.footer()}
</div>
</body>
</html>
<%def name="footer()">
this is the footer
</%def>
this is the body content.
也可以用
${next.body()}
表示下一级继承页面
用
${parent.toolbar()}
访问上一层
----------------------------------
## index.html
<%inherit file="base.html"/>
<%def name="header()">
this is some header content
</%def>
纯文本
<%text filter="h">
heres some fake mako ${syntax}
<%def name="x()">${x}</%def>
</%text>
8.
函数更多用法演示:
缓存
<%def name="somedef()" buffered="true">
somedef's results
</%def>
----------------------------------
${account(accountname='john')}
<%def name="account(accountname, type='regular')">
account name: ${accountname}, type ${type}
</%def>
----------------------------------
嵌套函数
<%def name="mydef()">
<%def name="subdef()">
a sub def
</%def>
im the def, and the subcomopnent is ${subdef()}
</%def>
----------------------------------
调用者
<%def name="buildtable()">
<table>
<tr><td>
${caller.body()}
</td></tr>
</table>
</%def>
<%call expr="buildtable">
I am the table body.
</%call>
输出
<table>
<tr><td>
I am the table body.
</td></tr>
</table>
----------------------------------
<%def name="lister(count)">
% for x in range(1,count):
${caller.body()}
% endfor
</%def>
<%call expr="lister(3)">
hi
</%call>
输出
hi
hi
hi
----------------------------------
<%def name="conditional(expr)">
% if expr:
${caller.body()}
% endif
</%def>
<%call expr="conditional(4==4)">
im the result
</%call>
----------------------------------
<%def name="layoutdata(somedata)">
<table>
% for item in somedata:
<tr>
% for col in item:
<td>${caller.body(col=col)}</td>\
% endfor
</tr>
% endfor
</table>
</%def>
<%call expr="layoutdata([[1,2,3],[4,5,6],[7,8,9]])" args="col">
Body data: ${col}
</%call>
输出:
<table>
<tr>
<td>Body data: 1</td><td>Body data: 2</td><td>Body data: 3</td>
<td>Body data: 4</td><td>Body data: 5</td><td>Body data: 6</td>
<td>Body data: 7</td><td>Body data: 8</td><td>Body data: 9</td>
</tr>
</table>
----------------------------------
<%def name="layout()">
## a layout def
<div class="mainlayout">
<div class="header">
${caller.header()}
</div>
<div class="sidebar">
${caller.sidebar()}
</div>
<div class="content">
${caller.body()}
</div>
</div>
</%def>
## calls the layout def
<%call expr="layout">
<%def name="header()">
I am the header
</%def>
<%def name="sidebar()">
<ul>
<li>sidebar 1</li>
<li>sidebar 2</li>
</ul>
</%def>
this is the body
</%call>
输出
<div class="mainlayout">
<div class="header">
I am the header
</div>
<div class="sidebar">
<ul>
<li>sidebar 1</li>
<li>sidebar 2</li>
</ul>
</div>
<div class="content">
this is the body
</div>
</div>
1.
在pylons中设置为utf-8编码
在pylons工程config/environment.py文件最后，添加
tmpl_options['mako.default_filters'] = ['decode.utf8']
2.
${}中间直接是python代码,显示其返回值
this is x: ${x}
pythagorean theorem: ${pow(x,2) + pow(y,2)}
3.
${"this is some text" | u}
u : url编码this+is+some+text
h : html编码
x : xml编码
trim : whitespace trimming, provided by string.strip()
n : disable all default filtering; only filters specified in the local expression tag will be applied.
自定义filter
<%!
def myescape(text):
return "<TAG>" + text + "</TAG>"
%>
Heres some tagged text: ${"text" | myescape}
Or from any Python module:
<%!
import myfilters
%>
Heres some tagged text: ${"text" | myfilters.tagfilter}
默认过滤器
<%page expression_filter="h"/>
Escaped text: ${"<html>some html</html>"}
可以在配置中定义默认的filter
t = TemplateLookup(directories=['/tmp'],
default_filters=['unicode', 'myfilter'],
imports=['from mypackage import myfilter']
禁用其他,只用trim
${'myexpression' | n, trim}
函数也可以用
<%def name="foo()" filter="h, trim">
<b>this is bold</b>
</%def>
4.
控制语句
% for a in ['one', 'two', 'three', 'four', 'five']:
% if a[0] == 't':
its two or three
% elif a[0] == 'f':
four/five
% else:
one
%endif
% endfor
直接编写python代码
<%
x = db.get_resource('foo')
y = [z.element for z in x if x.frobnizzle==5]
%>
模块级别的代码
<%!
import mylib
import re
def filter(text):
return re.sub(r'^@', '', text)
%>
5.
单行注释
## this is a comment.
多行注释
<%doc>
these are comments
more comments
</%doc>
6.
标签
包含,可以有变量
<%include file="foo.txt"/>
<%include file="/foo/bar/${myfile}.txt"/>
定义类似函数html文本段
${account()}
<%def name="account()">
Account for ${username}:<br/>
% for row in accountdata:
Value: ${row}<br/>
% endfor
</%def>
定义该页模板的参数
<%page cached="True" cache_type="memory"/>
名字空间
<%namespace file="functions.html" import="*"/>
<%namespace name="mystuff" file="mystuff.html"/>
${mystuff.somedef(x=5,y=7)}
The <%namespace> tag also supports some of the other semantics of Python's import statement, including pulling names into the local variable space, or using * to represent all names, using the import attribute:
<%namespace file="mystuff.html" import="foo, bar"/>
继承
## base.html
<html>
<body>
<div class="header">
${self.header()}
</div>
${self.body()}
<div class="footer">
${self.footer()}
</div>
</body>
</html>
<%def name="footer()">
this is the footer
</%def>
this is the body content.
也可以用
${next.body()}
表示下一级继承页面
用
${parent.toolbar()}
访问上一层
----------------------------------
## index.html
<%inherit file="base.html"/>
<%def name="header()">
this is some header content
</%def>
纯文本
<%text filter="h">
heres some fake mako ${syntax}
<%def name="x()">${x}</%def>
</%text>
8.
函数更多用法演示:
缓存
<%def name="somedef()" buffered="true">
somedef's results
</%def>
----------------------------------
${account(accountname='john')}
<%def name="account(accountname, type='regular')">
account name: ${accountname}, type ${type}
</%def>
----------------------------------
嵌套函数
<%def name="mydef()">
<%def name="subdef()">
a sub def
</%def>
im the def, and the subcomopnent is ${subdef()}
</%def>
----------------------------------
调用者
<%def name="buildtable()">
<table>
<tr><td>
${caller.body()}
</td></tr>
</table>
</%def>
<%call expr="buildtable">
I am the table body.
</%call>
输出
<table>
<tr><td>
I am the table body.
</td></tr>
</table>
----------------------------------
<%def name="lister(count)">
% for x in range(1,count):
${caller.body()}
% endfor
</%def>
<%call expr="lister(3)">
hi
</%call>
输出
hi
hi
hi
----------------------------------
<%def name="conditional(expr)">
% if expr:
${caller.body()}
% endif
</%def>
<%call expr="conditional(4==4)">
im the result
</%call>
----------------------------------
<%def name="layoutdata(somedata)">
<table>
% for item in somedata:
<tr>
% for col in item:
<td>${caller.body(col=col)}</td>\
% endfor
</tr>
% endfor
</table>
</%def>
<%call expr="layoutdata([[1,2,3],[4,5,6],[7,8,9]])" args="col">
Body data: ${col}
</%call>
输出:
<table>
<tr>
<td>Body data: 1</td><td>Body data: 2</td><td>Body data: 3</td>
<td>Body data: 4</td><td>Body data: 5</td><td>Body data: 6</td>
<td>Body data: 7</td><td>Body data: 8</td><td>Body data: 9</td>
</tr>
</table>
----------------------------------
<%def name="layout()">
## a layout def
<div class="mainlayout">
<div class="header">
${caller.header()}
</div>
<div class="sidebar">
${caller.sidebar()}
</div>
<div class="content">
${caller.body()}
</div>
</div>
</%def>
## calls the layout def
<%call expr="layout">
<%def name="header()">
I am the header
</%def>
<%def name="sidebar()">
<ul>
<li>sidebar 1</li>
<li>sidebar 2</li>
</ul>
</%def>
this is the body
</%call>
输出
<div class="mainlayout">
<div class="header">
I am the header
</div>
<div class="sidebar">
<ul>
<li>sidebar 1</li>
<li>sidebar 2</li>
</ul>
</div>
<div class="content">
this is the body
</div>
</div>