Thank you for your reply again :)
Okay, i just did a google search on the term "foobar", and haha i have been
wondering why does it appear anywhere!
anyway, hmm, it seems clearer with your examples. so if i were to use args,
like you said, to turn on bulb 1, i will put it as something like:
<a href = "{{=URL('test', args =['bulb', '1', 'on'])}}"><img src
="/Comfort2/static/images/on.jpg" width ="75" height="75"></a> ?
in default.py, i put this?
if request.args(0)=='1':
serialport.write("\x03O!0101\x0D") # serial command to turn the
light on.
and if using vars:
<a href = "{{=URL('test', vars = dict(bulb='1', state='on' ))}}"><img src
="/Comfort2/static/images/on.jpg" width ="75" height="75"></a> ?
if request.vars ={'bulb':1, 'state' :on}
serialport.write("\x03O!0101\x0D") # serial command to turn the
light on.
what about the following URL? what will it do?
<a href = "{{=URL('test', args =['bulb', '1'], vars =
dict(state='on'))}}"><img src ="/Comfort2/static/images/on.jpg" width ="75"
height="75"></a>
And all the above are in the same function 'test', so can i omit 'test' in
the URL?
thanks again!
On Tuesday, April 2, 2013 4:28:50 PM UTC+8, Niphlod wrote:
>
> /app/default/test
> points to executing your test() inside the controller named default.py
> args and vars are, in respect
> - args : /app/default/test/*1/2/3*
> - vars : /app/default/test?*foo=bar&foo=bar2&hello=world*
>
> To sum up, args are fine if you want cleaner urls, but you can't put
> whatever you want on them (imagine something like /app/default/test/*รนร +:\
> */
> , not a "smart" way to pass garbles on the url, but, e.g., something like
> /app/default/test/*1/on* where *1 *is the "bulb" number and *on* is the
> "action" you want to do seems fine).
> "Vars" on the other hand allow more flexibility, "garbled" parameters are
> allowed...maybe the nicest "feature" is that if you need a single variable
> holding multiple values "vars" parses them automatically (e.g. "turn on
> bulb 1 and bulb 2" can be done with /app/default/test?*
> bulb=1&bulb=2&action=on*) . Urls are not "clean" as with "args" but the
> functionality is the same.
>
> Bottomline, use what you feel appropriate, either one would do just fine.
>
> On Tuesday, April 2, 2013 9:56:25 AM UTC+2, [email protected] wrote:
>>
>> Hi guys! Sorry but I still do not quite understand after reading the
>> chapters about "Dispatching" and "URL". i guess my programming foundation
>> isn't that strong... and i have problem understanding without referring to
>> examples.
>>
>> Here is my situation and i would like to get a general idea on how to
>> solve the problem. May be my idea was wrong so please correct me :)
>>
>> I have just successfully connect a device to my Raspberry Pi, with web2py
>> as the webserver on Raspberry pi. Currently, i have created a home page
>> using the template, and there is a "Login" button on it. When i click on
>> the image (button), it directs me to default/test.html. the device gets the
>> login information and turns on and off the testlight.
>>
>> in default/index.html:
>>
>> <a href = "{{=URL <https://10.0.0.132/examples/global/vars/URL>(c='default',
>> f='test')}}"><img src ="/Comfort2/static/images/login.jpg" width ="128"
>> height="69"></a>
>>
>>
>> in default.py:
>>
>> def test():
>> import serial
>> import time
>> response <https://10.0.0.132/examples/global/vars/response>.flash=T
>> <https://10.0.0.132/examples/global/vars/T>("welcome home!")
>> time.sleep(1)
>>
>> serialport= serial.Serial("/dev/ttyAMA0", 9600, timeout=0.5) #opening
>> the port
>>
>>
>> serialport.write("\x03LI1234\x0D") #write a serial command to log into
>> the device
>> reply=serialport.readlines(1)
>> print reply
>> time.sleep(1)
>> serialport.write("\x03O!0101\x0D") #turn on a testlight
>> time.sleep(2)
>> serialport.write("\x03O!0100\x0D") #turn off a testlight
>> return dict()
>>
>>
>> However, i would like to separate it into a few tasks. So, after pressing
>> the "login" button, it will only login and direct me to test.html with 2
>> buttons (Turn on light and turn off light). if i press on the turn on light
>> button, the testlight will turn on and same for the other one. I would like
>> all these to be under one function because the commands can only be sent
>> when it is logged into the device. (if it is under another function, i will
>> need to login again.) So do i need to use args and vars at this point?
>>
>> I do not really understand what is args and vars and how are they used.
>> the information in the chapters taught me that
>> request.args = ['x', 'y', 'z']
>> request.vars={'p':1, 'q':2}
>>
>> but what are x,y,z,p, q, 1 and 2? under what conditions are they declared
>> and where do they appear?
>>
>> Another question: can i display a jQuery keypad using web2py?
>>
>> My progress using cherrypy is slightly more ahead than web2py. i am sure
>> i can transfer my work in cherrypy over to web2py... but i must get the
>> whole concept clear... please help me.
>> sorry that i sound very noob.... but much thanks to everyone for your
>> patience and guidance! :)
>>
>
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