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ROC/cms/persistence/implementation/mysql/src/provider/user_data_provider.e
2014-11-13 11:15:35 +01:00

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note
description: "Summary description for {USER_DATA_PROVIDER}."
date: "$Date$"
revision: "$Revision$"
class
USER_DATA_PROVIDER
inherit
PARAMETER_NAME_HELPER
REFACTORING_HELPER
SHARED_LOGGER
create
make
feature -- Initialization
make (a_connection: DATABASE_CONNECTION)
-- Create a data provider.
do
create {DATABASE_HANDLER_IMPL} db_handler.make (a_connection)
create error_handler.make
post_execution
end
db_handler: DATABASE_HANDLER
-- Db handler.
feature -- Error Handler
error_handler: ERROR_HANDLER
feature -- Status Report
is_successful: BOOLEAN
-- Is the last execution sucessful?
do
Result := not error_handler.has_error
end
has_user: BOOLEAN
-- Has any user?
do
Result := count > 0
end
feature -- Basic Operations
new_user (a_user_name: READABLE_STRING_32; a_password: READABLE_STRING_32; a_email: READABLE_STRING_32)
-- Create a new node.
local
l_parameters: STRING_TABLE [detachable ANY]
l_password_salt, l_password_hash: STRING
l_security: SECURITY_PROVIDER
do
error_handler.reset
create l_security
l_password_salt := l_security.salt
l_password_hash := l_security.password_hash (a_password, l_password_salt)
log.write_information (generator + ".new_user")
create l_parameters.make (4)
l_parameters.put (a_user_name,"username")
l_parameters.put (l_password_hash,"password")
l_parameters.put (l_password_salt,"salt")
l_parameters.put (a_email,"email")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (sql_insert_user, l_parameters))
db_handler.execute_change
post_execution
end
user (a_id: INTEGER_64): detachable CMS_USER
-- User for the given id `a_id', if any.
local
l_parameters: STRING_TABLE [ANY]
do
error_handler.reset
log.write_information (generator + ".user")
create l_parameters.make (1)
l_parameters.put (a_id,"id")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (select_user_by_id, l_parameters))
db_handler.execute_query
if db_handler.count = 1 then
Result := fetch_user
end
post_execution
end
user_by_name (a_name: READABLE_STRING_32): detachable CMS_USER
-- User for the given name `a_name', if any.
local
l_parameters: STRING_TABLE [ANY]
do
error_handler.reset
log.write_information (generator + ".user_by_name")
create l_parameters.make (1)
l_parameters.put (a_name,"name")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (select_user_by_name, l_parameters))
db_handler.execute_query
if db_handler.count = 1 then
Result := fetch_user
end
post_execution
end
user_by_email (a_email: detachable READABLE_STRING_32): detachable CMS_USER
-- User for the given email `a_email', if any.
local
l_parameters: STRING_TABLE [detachable ANY]
do
error_handler.reset
log.write_information (generator + ".user_by_email")
create l_parameters.make (1)
l_parameters.put (a_email,"email")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (select_user_by_email, l_parameters))
db_handler.execute_query
if db_handler.count = 1 then
Result := fetch_user
end
post_execution
end
user_salt (a_username: READABLE_STRING_32): detachable READABLE_STRING_32
-- User salt for the given user `a_username', if any.
local
l_parameters: STRING_TABLE [ANY]
do
error_handler.reset
log.write_information (generator + ".user_salt")
create l_parameters.make (1)
l_parameters.put (a_username,"name")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (select_salt_by_username, l_parameters))
db_handler.execute_query
if db_handler.count = 1 then
if attached db_handler.read_string (1) as l_salt then
Result := l_salt.as_string_32
end
end
post_execution
end
count: INTEGER
-- Number of items users.
local
l_parameters: STRING_TABLE [ANY]
do
error_handler.reset
log.write_information (generator + ".count")
create l_parameters.make (0)
db_handler.set_query (create {DATABASE_QUERY}.data_reader (select_count, l_parameters))
db_handler.execute_query
if db_handler.count = 1 then
Result := db_handler.read_integer_32 (1)
end
post_execution
end
feature -- Basic operations: User Roles
add_role (a_user_id: INTEGER; a_role_id: INTEGER)
-- Add Role `a_role_id' to user `a_user_id'
local
l_parameters: STRING_TABLE [detachable ANY]
do
error_handler.reset
log.write_information (generator + ".add_role")
create l_parameters.make (2)
l_parameters.put (a_user_id,"users_id")
l_parameters.put (a_role_id,"roles_id")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (slq_insert_users_roles, l_parameters))
db_handler.execute_change
post_execution
end
user_roles (a_id:INTEGER_64): DATABASE_ITERATION_CURSOR [INTEGER]
-- List of Roles id for the given user `a_id'.
local
l_parameters: STRING_TABLE [ANY]
do
error_handler.reset
log.write_information (generator + ".user_roles")
create l_parameters.make (1)
l_parameters.put (a_id, "user_id")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (Select_user_roles, l_parameters))
db_handler.execute_query
create Result.make (db_handler, agent fetch_role_id)
post_execution
end
feature -- Basic operations: User Profiles
save_profile_item (a_user_id: INTEGER_64; a_key: READABLE_STRING_32; a_value: READABLE_STRING_32)
-- Save a profile item with (a_key and a_value) to the given user `user_id'.
local
l_parameters: STRING_TABLE [ANY]
do
error_handler.reset
log.write_information (generator + ".save_profile_item")
create l_parameters.make (3)
l_parameters.put (a_key, "key")
l_parameters.put (a_value, "value")
l_parameters.put (a_user_id, "users_id")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (Select_instert_profile_item, l_parameters))
db_handler.execute_change
post_execution
end
save_profile (a_user_id: INTEGER_64; a_user_profile: CMS_USER_PROFILE)
-- Save a profile item with (a_key and a_value) to the given user `user_id'.
local
l_cursor: TABLE_ITERATION_CURSOR [READABLE_STRING_8, READABLE_STRING_GENERAL]
do
error_handler.reset
log.write_information (generator + ".save_profile")
from
l_cursor := a_user_profile.new_cursor
until
l_cursor.after
loop
save_profile_item (a_user_id, l_cursor.key.as_string_32, l_cursor.item)
l_cursor.forth
end
post_execution
end
user_profile (a_user_id: INTEGER_64): CMS_USER_PROFILE
-- User profile for a user with id `a_user_id'.
local
l_parameters: STRING_TABLE [ANY]
do
error_handler.reset
log.write_information (generator + ".user_profile")
create l_parameters.make (1)
l_parameters.put (a_user_id, "users_id")
db_handler.set_query (create {DATABASE_QUERY}.data_reader (Select_user_profile, l_parameters))
db_handler.execute_query
create Result.make
if not db_handler.after then
from
db_handler.start
until
db_handler.after
loop
if
attached db_handler.read_string (1) as l_key and then
attached db_handler.read_string (2) as l_value
then
Result.force (l_value, l_key)
end
db_handler.forth
end
end
post_execution
end
feature -- New Object
fetch_user: CMS_USER
do
create Result.make ("")
if attached db_handler.read_integer_32 (1) as l_id then
Result.set_id (l_id)
end
if attached db_handler.read_string (2) as l_u then
Result.set_name (l_u)
end
if attached db_handler.read_string (3) as l_p then
Result.set_password (l_p)
end
if attached db_handler.read_string (5) as l_e then
Result.set_email (l_e)
end
end
fetch_role_id: INTEGER
do
if attached db_handler.read_integer_32 (1) as l_id then
Result := l_id
end
end
feature {NONE} -- Sql Queries: USER
Select_count: STRING = "select count(*) from Users;"
-- Number of users.
Select_user_by_id: STRING = "select * from Users where id =:id;"
-- Retrieve user by id if exists.
Select_user_by_name: STRING = "select * from Users where username =:name;"
-- Retrieve user by name if exists.
Select_user_by_email: STRING = "select * from Users where email =:email;"
-- Retrieve user by email if exists.
Select_salt_by_username: STRING = "select salt from Users where username =:name;"
-- Retrieve salt by username if exists.
SQL_Insert_user: STRING = "insert into users (username, password, salt, email) values (:username, :password, :salt, :email);"
-- SQL Insert to add a new node.
feature {NONE} -- Sql Queries: USER_ROLES
Slq_insert_users_roles: STRING = "insert into users_roles (users_id, roles_id) values (:users_id, :roles_id);"
Select_user_roles: STRING = "Select roles_id from users_roles where users_id = :user_id"
feature {NONE} -- SQL Queries: Profile
Select_instert_profile_item: STRING = "insert into profiles (profiles.key, value, users_id) values (:key, :value, :users_id);"
Select_user_profile: STRING = "Select profiles.key, value from profiles where users_id = :users_id;"
feature {NONE} -- Implementation
post_execution
-- Post database execution.
do
error_handler.add_synchronization (db_handler.database_error_handler)
if error_handler.has_error then
log.write_critical (generator + ".post_execution " + error_handler.as_string_representation)
end
end
end