84 lines
3.4 KiB
Ruby
84 lines
3.4 KiB
Ruby
class DossierProjectionService
|
|
class DossierProjection < Struct.new(:dossier, :columns)
|
|
end
|
|
|
|
TABLE = 'table'
|
|
COLUMN = 'column'
|
|
|
|
# Returns [DossierProjection(dossier, columns)] ordered by dossiers_ids
|
|
# and the columns orderd by fields.
|
|
#
|
|
# It tries to be fast by using `pluck` (or at least `select`)
|
|
# to avoid deserializing entire records.
|
|
#
|
|
# It stores its intermediary queries results in an hash in the corresponding field.
|
|
# ex: field_email[:id_value_h] = { dossier_id_1: email_1, dossier_id_3: email_3 }
|
|
#
|
|
# Those hashes are needed because:
|
|
# - the order of the intermediary query results are unknown
|
|
# - some values can be missing (if a revision added or removed them)
|
|
def self.project(dossiers_ids, fields)
|
|
fields
|
|
.each { |f| f[:id_value_h] = {} }
|
|
.group_by { |f| f[TABLE] } # one query per table
|
|
.each do |table, fields|
|
|
case table
|
|
when 'type_de_champ', 'type_de_champ_private'
|
|
Champ
|
|
.includes(:type_de_champ)
|
|
.where(
|
|
types_de_champ: { stable_id: fields.map { |f| f[COLUMN] } },
|
|
dossier_id: dossiers_ids
|
|
)
|
|
.select(:dossier_id, :value, :type_de_champ_id, :stable_id) # we cannot pluck :value, as we need the champ.to_s method
|
|
.group_by(&:stable_id) # the champs are redispatched to their respective fields
|
|
.map do |stable_id, champs|
|
|
field = fields.find { |f| f[COLUMN] == stable_id.to_s }
|
|
field[:id_value_h] = champs.to_h { |c| [c.dossier_id, c.to_s] }
|
|
end
|
|
when 'self'
|
|
Dossier
|
|
.where(id: dossiers_ids)
|
|
.pluck(:id, *fields.map { |f| f[COLUMN].to_sym })
|
|
.each { |id, *columns| fields.zip(columns).each { |field, value| field[:id_value_h][id] = value&.strftime('%d/%m/%Y') } }
|
|
when 'individual'
|
|
Individual
|
|
.where(dossier_id: dossiers_ids)
|
|
.pluck(:dossier_id, *fields.map { |f| f[COLUMN].to_sym })
|
|
.each { |id, *columns| fields.zip(columns).each { |field, value| field[:id_value_h][id] = value } }
|
|
when 'etablissement'
|
|
Etablissement
|
|
.where(dossier_id: dossiers_ids)
|
|
.pluck(:dossier_id, *fields.map { |f| f[COLUMN].to_sym })
|
|
.each { |id, *columns| fields.zip(columns).each { |field, value| field[:id_value_h][id] = value } }
|
|
when 'user'
|
|
fields[0][:id_value_h] = Dossier # there is only one field available for user table
|
|
.joins(:user)
|
|
.where(id: dossiers_ids)
|
|
.pluck('dossiers.id, users.email')
|
|
.to_h
|
|
when 'groupe_instructeur'
|
|
fields[0][:id_value_h] = Dossier
|
|
.joins(:groupe_instructeur)
|
|
.where(id: dossiers_ids)
|
|
.pluck('dossiers.id, groupe_instructeurs.label')
|
|
.to_h
|
|
when 'followers_instructeurs'
|
|
fields[0][:id_value_h] = Follow
|
|
.active
|
|
.joins(instructeur: :user)
|
|
.where(dossier_id: dossiers_ids)
|
|
.pluck('dossier_id, users.email')
|
|
.group_by { |dossier_id, _| dossier_id }
|
|
.to_h { |dossier_id, dossier_id_emails| [dossier_id, dossier_id_emails.map { |_, email| email }&.join(', ')] }
|
|
end
|
|
end
|
|
|
|
Dossier
|
|
.select(:id, :state, :archived) # the dossier object is needed in the view
|
|
.find(dossiers_ids) # keeps dossiers_ids order and raise exception if one is missing
|
|
.map do |dossier|
|
|
DossierProjection.new(dossier, fields.map { |f| f[:id_value_h][dossier.id] })
|
|
end
|
|
end
|
|
end
|