Temporary store files between reboots.
Hi,
I need to store some data temporary in an pimatic plugin. It needs to be stored between pimatic restarts and the data need to be available on pimatic start.
I was thinking about using os.tmpdir() but then the files will be deleted on OS reboot so that won’t work.
So whats the best way to do it?
@tester22 If it is just about a few values to store the easiest is to store them as part of the pimatic configuration. For example, you can define a device attribute as part of the device schema and change the value from the plugin code. The change will be written to the confige file on the next Pimatic Restart or when you save the configuration via the web frontend. You can also define and manipulate plugin configuration properties. The following is an example for setting an plugin property
class FooPlugin extends env.plugins.Plugin
init: (app, @framework, @config) =>
...
someMethod: () =>
@config.foo = "bar"
See also:
"It always takes longer than you expect, even when you take into account Hofstadter's Law.", Hofstadter's Law
@mwittig The data is around 800 bytes on my setup but can be larger on other systems so I am not sure string them in the config file is that wise.
Would it be possible to store it in the DB?
Why not saving it to a file in the pimatic folder by calling a bash or python script with some parameters.
Upon start of pimatic use use the rule “if pimatic is starting” to read your data from that file.
Currently no values can be stored in the db. For small sets of data the best is to use the config like @mwittig said. If you want to store a large amount of data, why not writing it to a file, you then read at plugin setup?
