Hi,
I had almost completed rewriting blendstasktools.py to
use UDD. I was testing it and making some changes and now I have got
really confused. Can you please help me understand things a little
better ?
In tasks.py,
-> 'tasks' object of class Tasks is created.
-> class Tasks first reads the configuration file of the blend.
-> It has a function _InitMetapacakgekeys, which gets all the tasks inside the blend.
The query for this is :
query = "SELECT task FROM blends_tasks WHERE blend = '%s' ORDER BY task" % (self.blendname)
-> GetAllDependencies() gets the description and its translations of
all the metapackages. Also, for each task an object of class
TaskDependencies is created. The __init__() of class
TaskDependencies has:
self.dependencies = {}
for pkgstat in pkgstatus:
self.dependencies[pkgstat] = []
pkgstatus is a global dictionary and has keys like
official_high,official_low..... etc. How can I get the status of the
dependencies from UDD ?
-> SetMetapkgInfo() in class
TaskDependencies, creates an object of class DependantPackage. Class
DependantPackage holds all the possible information of a package.
-> GetTaskDependencies() in class TaskDependencies, used to read the
task files and get all the information. Rewriting it to use UDD,
involves the following queries:
# Get the title and description of each task in a blend
# Title
query = "SELECT title FROM blends_tasks WHERE task='%s' AND blend='%s'" % (self.task, self.blendname)
# Description
query = "SELECT description, long_description FROM blends_tasks WHERE
task='%s' AND blend='%s'" % (self.task, self.blendname)
# Get the package_name, description, homepage, maintainer of the official dependencies of the task
query = "SELECT DISTINCT b.package, p.description, p.homepage, p.maintainer_name, p.maintainer_email \
FROM blends_dependencies b JOIN packages p ON p.package=b.package \
WHERE b.blend='%s' AND b.task='%s'" % (self.blendname, self.task)
_execute_udd_query(query)
if curs.rowcount > 0:
dep_info = curs.fetchall()
for each_dep in dep_info:
self.metadepends = each_dep[0]
dep = DependantPackage(self.blendname, self.task)
dep.why = each_dep[1]
_name = each_dep[3]
_url = each_dep[4]
dep.responsible = '<a href="" % (_url, _name)
dep.pkg = each_dep[0]
dep.properties['homepage'] = each_dep[2]
What is the difference between self.metadepends and dep.pkg ? Due to my
negligency, I had not paid attention to this before and I have made a
major mistake throughout.
#Get the package_name,
description, homepage, maintainer, vcs, wnpp, section, license of the
prospective dependencies of the task
query = "SELECT DISTINCT bp.package, bp.maintainer, bp.homepage, bp.description, bp.long_description, \
bp.vcs_type, bp.vcs_url, bp.vcs_browser, bp.section, bp.license, bp.wnpp, bp.wnpp_type, bp.wnpp_desc \
FROM blends_prospectivepackages bp JOIN blends_dependencies b ON b.blend=bp.blend \
WHERE bp.blend='%s' and b.task='%s'" % (self.blendname, self.task)
_execute_udd_query(query)
if curs.rowcount > 0:
pros_info = curs.fetchall()
for each_pros in pros_info:
dep.pkg = each_pros[0]
dep.properties['homepage'] = each_pros[2]
dep.desc['en']['short'] = each_pros[3]
dep.desc['en']['long'] = each_pros[4]
dep.properties['vcs_type'] = each_pros[5]
dep.properties['vcs_url'] = each_pros[6]
dep.properties['vcs_browser'] = each_pros[7]
dep.properties['section'] = each_pros[8]
dep.properties['license'] = each_pros[9]
dep.properties['wnpp'] = each_pros[10]
The earlier code also had language, registartion, pkg-url remark(short,
long) fields. From where in UDD, can I get the language of a package ? I
am aware that the UDD has to be enhanced to include the registration
field. Where do I get pkg-url, pkg-status, remark from?
Also, there is usage of a field_obsolete list. What exactly is stored in this ?
I'll ask doubts regarding the rest of the code, once I have clealy rewritten the code upto this point.