Class: Katello::Rpm

Inherits:
Model
  • Object
show all
Includes:
Concerns::PulpDatabaseUnit
Defined in:
app/models/katello/rpm.rb

Constant Summary collapse

CONTENT_TYPE = 
'rpm'.freeze

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Concerns::PulpDatabaseUnit

#backend_data, #library_repositories, #remove_from_repository

Methods inherited from Model

#destroy!

Class Method Details

.applicable_to_hosts(hosts) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 213

def self.applicable_to_hosts(hosts)
  self.joins(:content_facets).
    where("#{Katello::Host::ContentFacet.table_name}.host_id" => hosts).distinct
end

.content_facet_association_class ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 31

def self.content_facet_association_class
  ContentFacetApplicableRpm
end

.default_sort ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 27

def self.default_sort
  order(:name).order(:epoch).order(:version_sortable).order(:release_sortable)
end

.latest(relation) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 225

def self.latest(relation)
  # There are several different ways to implement this:

  # 1) Use a LEFT OUTER JOIN to join the query with itself on name=name,
  #    arch=arch, evr<evr, then select unmatched rows.
  #    In PostgreSQL 9.2 populated with real data, EXPLAIN shows
  #    cost=339901.07..381834.02 for the SQL generated by this when a
  #    package search is performed with a content_view_version_id filter.
  #    Unfortunately, this requires writing raw SQL for the JOIN and using
  #    to_sql, which may be somewhat brittle.  For example, be aware of
  #    quirks like https://github.com/rails/rails/issues/18379
  return relation.joins(
    "LEFT OUTER JOIN (#{relation.to_sql}) AS katello_rpms2 ON " \
    'katello_rpms.name = katello_rpms2.name AND katello_rpms.arch = katello_rpms2.arch AND ' \
    '(CAST(katello_rpms.epoch AS INT) < CAST(katello_rpms2.epoch AS INT) OR ' \
    ' (CAST(katello_rpms.epoch AS INT) = CAST(katello_rpms2.epoch AS INT) AND ' \
    '  (katello_rpms.version_sortable COLLATE "C" < katello_rpms2.version_sortable COLLATE "C" OR ' \
    '   (katello_rpms.version_sortable = katello_rpms2.version_sortable AND ' \
    '    katello_rpms.release_sortable COLLATE "C" < katello_rpms2.release_sortable COLLATE "C"))))'
  ).where('katello_rpms2.release_sortable IS NULL')

  # 2) Use GROUP BY with MAX() and several INNER JOINs to identify the
  #    latest evr, then INNER JOIN again to get complete rows.
  #    Like #1, this must also be written using raw SQL and to_sql.
  #    cost=677566.03..704889.89
  #max_epochs = relation.
  #  group(:name, :arch).
  #  select(:name, :arch, 'MAX(CAST(katello_rpms.epoch AS INT)) AS max_epoch')
  #max_versions = relation.
  #  joins(
  #    "INNER JOIN (#{max_epochs.to_sql}) katello_rpms2 ON "    #    'katello_rpms.name = katello_rpms2.name AND katello_rpms.arch = katello_rpms2.arch AND '    #    'CAST(katello_rpms.epoch AS INT) = katello_rpms2.max_epoch'
  #  ).
  #  group(:name, :arch, :epoch).
  #  select(:name, :arch, :epoch, 'MAX(katello_rpms.version_sortable COLLATE "C") AS max_version')
  #max_releases = relation.
  #  joins(
  #    "INNER JOIN (#{max_versions.to_sql}) katello_rpms2 ON "    #    'katello_rpms.name = katello_rpms2.name AND katello_rpms.arch = katello_rpms2.arch AND '    #    'CAST(katello_rpms.epoch AS INT) = CAST(katello_rpms2.epoch AS INT) AND '    #    'katello_rpms.version_sortable = katello_rpms2.max_version'
  #  ).
  #  group(:name, :arch, :epoch, :version_sortable).
  #  select(:name, :arch, :epoch, :version_sortable, 'MAX(katello_rpms.release_sortable COLLATE "C") AS max_release')
  #return relation.
  #  joins(
  #    "INNER JOIN (#{max_releases.to_sql}) katello_rpms2 ON "    #    'katello_rpms.name = katello_rpms2.name AND katello_rpms.arch = katello_rpms2.arch AND '    #    'CAST(katello_rpms.epoch AS INT) = CAST(katello_rpms2.epoch AS INT) AND '    #    'katello_rpms.version_sortable = katello_rpms2.version_sortable AND '    #    'katello_rpms.release_sortable = katello_rpms2.max_release'
  #  )

  # 3) Like #1, but use a Common Table Expression instead of a
  #    LEFT OUTER JOIN to join the query with itself.
  #    This seems to be faster than #1 in some cases and slower in others
  #    depending on optimizer behavior.
  #    For the same test case as used for #1, cost=404240.71..405796.40
  #    However, this is not supported in all versions of all databases
  #    (e.g. it only works in MySQL >=8.0).
  #    This can be written using either raw SQL or Arel.
  #
  # 3a) Raw SQL
  #cte_sql = relation.select('katello_rpms.*, CAST(katello_rpms.epoch AS INT) AS epoch_sortable').to_sql
  #return Rpm.where('katello_rpms.id IN ('    #  "WITH katello_rpms AS (#{cte_sql}) "    #  'SELECT katello_rpms.id from katello_rpms LEFT OUTER JOIN katello_rpms AS katello_rpms2 ON '    #  'katello_rpms.name = katello_rpms2.name AND katello_rpms.arch = katello_rpms2.arch AND '    #  '(katello_rpms.epoch_sortable < katello_rpms2.epoch_sortable OR '    #  ' (katello_rpms.epoch_sortable = katello_rpms2.epoch_sortable AND '    #  '  (katello_rpms.version_sortable COLLATE "C" < katello_rpms2.version_sortable COLLATE "C" OR '    #  '   (katello_rpms.version_sortable = katello_rpms2.version_sortable AND '    #  '    katello_rpms.release_sortable COLLATE "C" < katello_rpms2.release_sortable COLLATE "C")))) '    #  'WHERE katello_rpms2.release_sortable IS NULL'    #')')
  #
  # 3b) Arel
  #     Unlike #1, #2, and #3a, this does not require raw SQL or to_sql.
  #     Unfortunately this doesn't work reliably in Rails 4.2 because
  #     relation.unscoped.where(relation.arel_table[:id].in(relation.arel))
  #     looses the prepared statement parameter values.  See:
  #     https://github.com/rails/rails/issues/13686
  ## Convert current query to Arel for use in a CTE
  #orig_query = relation.arel
  ## Add another column to the original query: CAST(epoch AS INT) AS epoch_sortable
  #orig_table = relation.arel_table
  #orig_query = orig_query.project(Arel::Nodes::NamedFunction.new('CAST', [orig_table[:epoch].as('INT')], 'epoch_sortable'))
  ## Create two names that will both refer to the existing query in the CTE
  #cte1 = Arel::Table.new(:katello_rpms)
  #cte2 = Arel::Table.new(:katello_rpms2)
  ## Create a new Arel query and use a CTE to JOIN the original query with
  ## itself and select the latest evr for each name/arch
  #new_query = cte1.project(cte1[:id]).with(Arel::Nodes::As.new(cte1, orig_query)).
  #  join(Arel::Nodes::As.new(cte1, cte2), Arel::Nodes::OuterJoin).on(
  #    cte1[:name].eq(cte2[:name]).and(cte1[:arch].eq(cte2[:arch])).and(
  #      cte1[:epoch_sortable].lt(cte2[:epoch_sortable]).or(
  #        cte1[:epoch_sortable].eq(cte2[:epoch_sortable]).and(
  #          Arel::Nodes::SqlLiteral.new('katello_rpms.version_sortable COLLATE "C"').lt(Arel::Nodes::SqlLiteral.new('katello_rpms2.version_sortable COLLATE "C"')).or(
  #            cte1[:version_sortable].eq(cte2[:version_sortable]).and(
  #              Arel::Nodes::SqlLiteral.new('katello_rpms.release_sortable COLLATE "C"').lt(Arel::Nodes::SqlLiteral.new('katello_rpms2.release_sortable COLLATE "C"'))
  #            )
  #          )
  #        )
  #      )
  #    )
  #  ).
  #  where(cte2[:release_sortable].eq(nil))
  ## Wrap the new Arel query in a new ActiveRecord::Relation
  #return relation.unscoped.where(orig_table[:id].in(new_query))
end

.scoped_search_evr(_key, operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 69

def self.scoped_search_evr(_key, operator, value)
  if ['=', '<>'].include?(operator)
    return self.scoped_search_evr_equal(operator, value)
  elsif ['IN', 'NOT IN'].include?(operator)
    return self.scoped_search_evr_in(operator, value)
  elsif ['LIKE', 'NOT LIKE'].include?(operator)
    return self.scoped_search_evr_like(operator, value)
  elsif ['>', '>=', '<', '<='].include?(operator)
    return self.scoped_search_evr_compare(operator, value)
  else
    return {}
  end
end

.scoped_search_evr_compare(operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 149

def self.scoped_search_evr_compare(operator, value)
  evr = Util::Package.parse_evr(value)
  (e, v, r) = [evr[:epoch], evr[:version], evr[:release]]
  e = e.to_i # nil or blank becomes 0
  conditions = ''
  if v.nil? || v.blank?
    conditions = "CAST(#{self.table_name}.epoch AS INT) #{operator} ?"
    parameters = [e]
  else
    sv = Util::Package.sortable_version(v)
    if r.nil? || r.blank?
      conditions = "#{self.table_name}.version_sortable COLLATE \"C\" #{operator} ? COLLATE \"C\""
      parameters = [sv]
    else
      conditions =
        "#{self.table_name}.version_sortable COLLATE \"C\" #{operator[0]} ? COLLATE \"C\" OR " \
        "(#{self.table_name}.version_sortable = ? AND " \
         "#{self.table_name}.release_sortable COLLATE \"C\" #{operator} ? COLLATE \"C\")"
      sv = Util::Package.sortable_version(v)
      parameters = [sv, sv, Util::Package.sortable_version(r)]
    end
    conditions = "CAST(#{self.table_name}.epoch AS INT) #{operator[0]} ? OR (CAST(#{self.table_name}.epoch AS INT) = ? AND (#{conditions}))"
    parameters = [e, e] + parameters
  end
  return { :conditions => conditions, :parameter => parameters }
end

.scoped_search_evr_equal(operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 83

def self.scoped_search_evr_equal(operator, value)
  joiner = (operator == '=' ? 'AND' : 'OR')
  evr = Util::Package.parse_evr(value)
  (e, v, r) = [evr[:epoch], evr[:version], evr[:release]]
  e = e.to_i # nil or blank becomes 0
  conditions = "CAST(#{self.table_name}.epoch AS INT) #{operator} ?"
  parameters = [e]
  unless v.nil? || v.blank?
    conditions += " #{joiner} #{self.table_name}.version #{operator} ?"
    parameters += [v]
  end
  unless r.nil? || r.blank?
    conditions += " #{joiner} #{self.table_name}.release #{operator} ?"
    parameters += [r]
  end
  return { :conditions => conditions, :parameter => parameters }
end

.scoped_search_evr_in(operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 101

def self.scoped_search_evr_in(operator, value)
  op = (operator == 'IN' ? '=' : '<>')
  joiner1 = (operator == 'IN' ? 'AND' : 'OR')
  joiner2 = (operator == 'IN' ? 'OR' : 'AND')
  conditions = []
  parameters = []
  value.split(',').collect { |v| v.strip }.each do |val|
    evr = Util::Package.parse_evr(val)
    (e, v, r) = [evr[:epoch], evr[:version], evr[:release]]
    e = e.to_i # nil or blank becomes 0
    condition = "CAST(#{self.table_name}.epoch AS INT) #{op} ?"
    parameters += [e]
    unless v.nil? || v.blank?
      condition += " #{joiner1} #{self.table_name}.version #{op} ?"
      parameters += [v]
    end
    unless r.nil? || r.blank?
      condition += " #{joiner1} #{self.table_name}.release #{op} ?"
      parameters += [r]
    end
    conditions += ["(#{condition})"]
  end
  return { :conditions => conditions.join(" #{joiner2} "), :parameter => parameters }
end

.scoped_search_evr_like(operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 126

def self.scoped_search_evr_like(operator, value)
  val = (value !~ /^\%|\*/ && value !~ /\%|\*$/) ? "%#{value}%" : value.tr_s('%*', '%')
  evr = Util::Package.parse_evr(val)
  (e, v, r) = [evr[:epoch], evr[:version], evr[:release]]
  conditions = []
  parameters = []
  unless e.nil? || e.blank?
    conditions += ["CAST(#{self.table_name}.epoch AS VARCHAR(10)) #{operator} ?"]
    parameters += [e]
  end
  unless v.nil? || v.blank?
    conditions += ["#{self.table_name}.version #{operator} ?"]
    parameters += [v]
  end
  unless r.nil? || r.blank?
    conditions += ["#{self.table_name}.release #{operator} ?"]
    parameters += [r]
  end
  return {} if conditions.empty?
  joiner = (operator == 'LIKE' ? 'AND' : 'OR')
  return { :conditions => conditions.join(" #{joiner} "), :parameter => parameters }
end

.scoped_search_release(_key, operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 39

def self.scoped_search_release(_key, operator, value)
  self.scoped_search_sortable('release', operator, value)
end

.scoped_search_sortable(column, operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 43

def self.scoped_search_sortable(column, operator, value)
  if ['>', '>=', '<', '<='].include?(operator)
    conditions = "#{self.table_name}.#{column}_sortable COLLATE \"C\" #{operator} ? COLLATE \"C\""
    parameter = Util::Package.sortable_version(value)
    return { :conditions => conditions, :parameter => [parameter] }
  end

  # Use the default behavior for all other operators.
  # Unfortunately there is no way to call the default behavior from here, so
  # we replicate the default behavior from sql_test() in
  # https://github.com/wvanbergen/scoped_search/blob/master/lib/scoped_search/query_builder.rb
  if ['LIKE', 'NOT LIKE'].include?(operator)
    conditions = "#{self.table_name}.#{column} #{operator} ?"
    parameter = (value !~ /^\%|\*/ && value !~ /\%|\*$/) ? "%#{value}%" : value.tr_s('%*', '%')
    return { :conditions => conditions, :parameter => [parameter] }
  elsif ['IN', 'NOT IN'].include?(operator)
    conditions = "#{self.table_name}.#{column} #{operator} (#{value.split(',').collect { '?' }.join(',')})"
    parameters = value.split(',').collect { |v| v.strip }
    return { :conditions => conditions, :parameter => parameters }
  else
    conditions = "#{self.table_name}.#{column} #{operator} ?"
    parameter = value
    return { :conditions => conditions, :parameter => [parameter] }
  end
end

.scoped_search_version(_key, operator, value) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 35

def self.scoped_search_version(_key, operator, value)
  self.scoped_search_sortable('version', operator, value)
end

.search_version_equal(version) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 183

def self.search_version_equal(version)
  Katello::Util::PackageFilter.new(self, version, Katello::Util::PackageFilter::EQUAL).results
end

.search_version_range(min = nil, max = nil) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 176

def self.search_version_range(min = nil, max = nil)
  query = self.all
  query = Katello::Util::PackageFilter.new(query, min, Katello::Util::PackageFilter::GREATER_THAN).results if min.present?
  query = Katello::Util::PackageFilter.new(query, max, Katello::Util::PackageFilter::LESS_THAN).results if max.present?
  query
end

.total_for_repositories(repos) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 187

def self.total_for_repositories(repos)
  self.in_repositories(repos).count
end

.yum_installable_for_host(host) ⇒ Object

Return RPMs that are not installed on a host, but could be installed the word ‘installable’ has a different meaning here than elsewhere



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# File 'app/models/katello/rpm.rb', line 220

def self.yum_installable_for_host(host)
  repos = host.content_facet.bound_repositories.pluck(:id)
  Katello::Rpm.in_repositories(repos).where.not(name: host.installed_packages.pluck(:name)).order(:name)
end

Instance Method Details

#build_nvra ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 195

def build_nvra
  Util::Package.build_nvra(self.attributes.with_indifferent_access)
end

#hosts_applicable(org_id = nil) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 199

def hosts_applicable(org_id = nil)
  if org_id.present?
    self.content_facets.joins(:host).where("#{::Host.table_name}.organization_id" => org_id)
  else
    self.content_facets.joins(:host)
  end
end

#hosts_available(org_id = nil) ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 207

def hosts_available(org_id = nil)
  self.hosts_applicable(org_id).joins("INNER JOIN #{Katello::RepositoryRpm.table_name} on \
    #{Katello::RepositoryRpm.table_name}.rpm_id = #{self.id}").joins(:content_facet_repositories).
    where("#{Katello::ContentFacetRepository.table_name}.repository_id = #{Katello::RepositoryRpm.table_name}.repository_id").uniq
end

#nvrea ⇒ Object 



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# File 'app/models/katello/rpm.rb', line 191

def nvrea
  Util::Package.build_nvrea(self.attributes.with_indifferent_access, false)
end