Dreamboard

wooshman · 9. Mai 2016

Hi, I am new to the world of Enigma2 and python but have a php background.

I have written some basic plugins for Enigma2 which work, but now I am trying to read and write to the settings file: etc/enigma2/settings

The problem I have is that I don't know what the exact name of the value will be so cannot address it using code from other plugins.

I am looking for a way to remove

config.plugins.test.random=false
config.plugins.test.anotherrandom=false
config.plugins.test.something=false
config.plugins.test.different=false

from the settings file, then save a list with similar data back to the settings file.

I understand that I need

config.plugins.test = ConfigSubsection()

but without knowing the actual names of random, another random etc I am very lost of how to do what I am aiming for.

Many thanks n advance
Woosh

dre · 9. Mai 2016

If you don't now the name you can't read it. You must anyway first define the name of the config element to store any information.

wooshman · 9. Mai 2016

HI dre, thanks for the reply

Ok, so if I could re-structure my plugin process and knew the name of each entry, how would I loop to read the entires?

list one to see if in settinga:
icon1
icon2
icon3

in settings:
config.plugins.test.icon1 = pixel

config.plugins.test.icon1 = myicon

config.plugins.test.icon1 = picture

config.plugins.test = ConfigSubsection()

loop code?

Also, what is the contents of config.plugins.test and is it a list?

Thanks again.

Please bear in mind I am a noob

dre · 9. Mai 2016

first you need the ConfigSubsection:

Code

config.plugins.test = ConfigSubsection()

Then you need a ConfigSubList:

Code

config.plugins.test.icon = ConfigSubList()

It's recommendable to have a config entry holding the length of the ConfigSubList:

Code

config.plugins.test.count = ConfigInteger(0)

Now, first you need to initialise the config:

Code

def initProfileConfig():
        s = ConfigSubsection()
        s.pixel =  ConfigText(default = "")
        s.name = ConfigText(default = "")
        s.picture = ConfigText(default = "")
        config.plugins.test.icon.append(s)
        return s


def initConfig():
        count = config.plugins.test.count.value
        if count != 0:
                i = 0
                while i < count:
                        initProfileConfig()
                        i += 1

Alles anzeigen

And here's how you read it finally:

Code

count = config.plugins.test.count.value
                if count != 0:
                        for i in range(0,count):
                                pixel = config.plugins.test.icon[i].pixel.value
                                name = config.plugins.test.icon[i].name.value
                                picture = config.plugins.text.icon[i].picture.value

As there is quite likely more than one entry you should assign the values to a list.

Credit goes to Dr.Best who helped me with that when I had the problem.

wooshman · 9. Mai 2016

Thank you very much indeed.

I am now trying to digest all that and piece it together. I am not saying I will be able to make sense of it or make it work but I will try.

So all of that is required to read those three settings? I dread to think what saving it is going to look like.

Thanks again.

dre · 9. Mai 2016

You can check how to save it in my lancontrol2 plugin.

Lost in Translation · 9. Mai 2016

the values of current settings you get with config.name_of_setting.value and this will work even for settings which still hold the default value, because these are NOT written to the settings file to reduce the number of Flash writes.

Changing the value of a Setting explicitely (if not using Config Entries in a menu) works like this:

config.name_of_setting.value=xxxx

Saving you can do like this, but then the setting is written only when enigma2 restarts:

config.name_of_setting.save()

Of in a save routine for all your config values:

for x in self["config"].list:
x[1].save()
# make sure it is in settings file

This will force the settings file to be written immediately without restarting enigma2:

configfile.save()

Finally for setting names which you don't find in the settings file look at mytest.py (for enigma2 standard ones) or the Plugin's plugin.py which defines them

wooshman · 10. Mai 2016

Thanks both, my head is really pickled but I will plod on and see what I can do with your info.

Thanks again, I am sure this won't be the end.

wooshman · 16. Mai 2016

OK so I am lost and can't get it to work for me, just a lot of crashes.

This is what I am trying to achieve.

My config file is on a web server and gets loaded into a list when a button is pressed. The contents of the file is names of icons:

icon1
icon4
icon5
icon7
icon9

The file can list up to 36 icons

my settings file currently contains:

config.plugins.test.icon1=false
config.plugins.test.icon3=false
config.plugins.test.icon5=false
config.plugins.test.icon9=false

I download this file and save it locally. I save it into a tmp folder so I can delete it when I am finished. This forces a new download the next time the plugin runs.

Code

target = 'http://www.webserver.co.uk/foldername/configfile.txt'configfile = urllib.URLopener()
configfile.retrieve(target + target_url, "/usr/lib/enigma2/python/Plugins/Extensions/test/tmp/configfile.txt") # having a local copy here allows me to delete it aferwards forcing a new file load next time

I now read the file into a list

Code

data = /usr/lib/enigma2/python/Plugins/Extensions/test/tmp/configfile.txt"list = []file = open(data, 'r') for line in file:     list.append(line)     listcount = len(list)

now this is where I get completely stuck and don't know what I I am doing. Even trying with one value not in a list I cannot get it to work.

Python

from Components.config import config, ConfigSubsection, ConfigSelection, ConfigDirectory, ConfigYesNo, ConfigOnOff, Config, ConfigInteger, ConfigSubList, ConfigText, getConfigListEntry, configfile


		config.plugins = ConfigSubsection()config.plugins.test = ConfigSubList()

From here I get lost.

What I need to happen is:

Anything that is in the configfile gets added to the settings file

config.plugins.test.icon1=false
config.plugins.test.icon4=false
config.plugins.test.icon5=false
config.plugins.test.icon7=false
config.plugins.test.icon9=false

Anything that is no longer in the configfile gets removed from settings

config.plugins.test.icon5=false
config.plugins.test.icon9=false
The settings file then gets saved

configfile.save()

To remove them I think I would need to loop from 1 - 36. This would be before adding the new ones.

Code

x = 0while x < 36:     config.plugins.test.icon[x] = false # find every entry and remove     x += 1

I am at a loss. I am sorry if it simple for you, but this really has me beaten.

Thanks in advance again.

PS, the code window is joining my lines together for some reason. I have not coded it like that.

dre · 16. Mai 2016

Please post the crashlog.

Honestly, I don't get why you want to store something in the config when it should be replaced the next time you open the plugin. Why don't you simply download the data to /tmp and display it? It's anyway better to use twisted instead of urllib.

wooshman · 16. Mai 2016

The reason is because the values are already stored in settings by another plugin and I have no control over how the plugin works. Instead of using the other plugin to manually make changes, I want to be able to change the icons using a remote file. There is no way for me to physically run the original plugin on all boxes and this will make the users life easier, I can do it via a remote file, they simply open he new plugin and the work is done.

As for twisted vs urllib, I don't know what this is as I am so new to python and learning as I go.

I don't necessarily need to remove the setting if it already exists and will be put back there, it can just remain there, but I am using simple logic as I am unsure of what you can do with it all.

Lost in Translation · 16. Mai 2016

I'm sorry, but you are still NOT getting the point how enigma2 SETTINGS work. YOU don't have to put them into the settings file, as this is just the cache to remember them when enigma2 is stopped and load thghem from there during startup so that they are persistent over a reboot/restart.

You simply set them how you want and then when enigma2 stops it will be written to the settings file by enigma2 shutdown code.

The enigma2 code NEVER reads the settings from the file during runtime, only during startup it reloads them from there. During run-time it always used the cached values loaded from the file to memory and they are directly changed and read from THERE.

The whole thing does NOT work like a Windows registry or the typical Linux configuration files.

wooshman · 16. Mai 2016

Ok, that is fair comment, I didn't know it worked like that. The third party plugin instantly save to settings so I thought I needed to do the same.

It doesn't change the fact that I still have to read existing values and compare them to new settings though weather in settings or in memory. I still have a list of icons added by a third party plugin and I need to be able to either keep/replace or append depending on what icons are in my list. I do know that the third party plugin saves to settings all the time.

I understand what you are saying, but the end result required is still the same.

Would you mind me sending you a PM please so I can explain better and precisely?

Thanks
Woosh

dre · 16. Mai 2016

The problem is that I still don't have the complete picture. I understand that you want to temporaly overwrite settings written by an other plugin. But I don't know what the other plugin does. And the way you describe everything and making sure we only get a blur picture I'm pretty sure it does something illegal.

Lost in Translation · 16. Mai 2016

The board is for support, NOT our PM box and the boardrules apply also for PMs, so there is no added value either.

Finally you got all the necessary code pieces posted and explained, if you are insisting not to use them it is not our fault

wooshman · 16. Mai 2016

Zitat von dre

The problem is that I still don't have the complete picture. I understand that you want to temporaly overwrite settings written by an other plugin. But I don't know what the other plugin does. And the way you describe everything and making sure we only get a blur picture I'm pretty sure it does something illegal.

No, it is not illegal in the least Dre, I merely want to edit the settings of a third party open source plugin (which are stored in the settings file) via a remote config file instead of the end user having to load the third party plugin and go through all the settings themselves each time it is needed. I am actually trying to make life easier for people by removing the need for them to edit anything. Currently I don't want to spell out what I am working on as it is an idea I have had for a while now which is why it is a blurred picture. Once released the code will be freely available. It is also for the same reason I asked about sending a PM so the idea doesn't get used before my own release. I didn't realise that trying to protect my idea was against board rules.

I appreciate that all the code required is in front of me, but piecing it together is what I am struggling with. Nowhere have I insisted that I will not use it. I came and asked for help, why would I not use the information given in return.

Sorry to have wasted your support time gutemine, asking questions as someone completely new to python, a great way to encourage people.

wooshman · 21. Mai 2016

HI Dre

I do not give up easily. I can write to and remove entries from the settings file providing I include the name of the entry in full using both of your replies.

myval = "something"

config.plugins.test.icon7 = ConfigText(default = "")
config.plugins.test.icon7.value = myval
config.plugins.test.icon7.save()

configfile.save()

Using the above I can create a new settings entry, edit a value or remove from the settings file.

Please can you tell me (and believe me I have tried everything I can think of) do do it this way

lines = []
# code here to populate list with icon names

a = 0
aa = len(lines)
while a < aa:

config.plugins.iptvplayer.lines[a] = ConfigText(default = "")
config.plugins.iptvplayer.lines[a].value = myval
config.plugins.iptvplayer.lines[a].save()
a += 1

configfile.save()

I have tried append, but I think this is screen menu related, I have tried ' + lines[a] + ' I have tried all sorts but haven't figured it out.

Many thanks in advance.

dre · 21. Mai 2016

it's better to use to code tags. This makes it better readable.

try this:

Code

config.plugins.test.icon.save()
config.plugins.test.save()

wooshman · 21. Mai 2016

Thanks Dre, sorry, I forgot about using code tags. I tried setting icon = lines[a] and although never crashed it didn't do anything in the settings file either.

Python

from Components.config import config, ConfigSubsection, ConfigSelection, ConfigDirectory, ConfigYesNo, ConfigOnOff, Config, ConfigInteger, ConfigSubList, ConfigText, getConfigListEntry, configfile
####################################################
config.plugins.test = ConfigSubsection()


myval = "help"


global lines
lines = []


with open('/usr/lib/enigma2/python/Plugins/Extensions/test/list.txt') as f:
lines = f.read().splitlines()


global aa
aa = len(lines)


global a
a = 0


while a < aa:
icon = lines[a]


config.plugins.test.icon = ConfigText(default = "")
config.plugins.testicon.value = myval
config.plugins.test.icon.save()
config.plugins.test.save()


a += 1
configfile.save()
####################################

Alles anzeigen

I have shown a message box to check that lines[a] is the name of the icon and also aa to check the total len(lines) and they both show the expected result

The above is all the code I have for this part of the plugin, which as I said before works if I know the name of icon and add it directly, but am failing to be able to use the name stored in lines[a].

dre · 21. Mai 2016

have you tried to add a print to check the config entry after the assignment?

Code

print config.plugins.test.icon[a].name.value

Isn't config.plugins.text.icon your ConfigSubList? At least in my example above it was.