mirror of
https://gitlab.com/flectra-community/reporting-engine.git
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718 lines
25 KiB
Python
718 lines
25 KiB
Python
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# Copyright (C) 2017 - Today: GRAP (http://www.grap.coop)
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# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
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import logging
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from datetime import datetime, timedelta
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from psycopg2 import ProgrammingError
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from flectra import SUPERUSER_ID, _, api, fields, models
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from flectra.exceptions import UserError, ValidationError
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from flectra.tools import sql, table_columns
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from flectra.tools.safe_eval import safe_eval
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_logger = logging.getLogger(__name__)
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class BiSQLView(models.Model):
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_name = "bi.sql.view"
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_description = "BI SQL View"
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_order = "sequence"
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_inherit = ["sql.request.mixin"]
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_sql_prefix = "x_bi_sql_view_"
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_model_prefix = "x_bi_sql_view."
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_sql_request_groups_relation = "bi_sql_view_groups_rel"
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_sql_request_users_relation = "bi_sql_view_users_rel"
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_STATE_SQL_EDITOR = [
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("model_valid", "SQL View and Model Created"),
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("ui_valid", "Views, Action and Menu Created"),
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]
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technical_name = fields.Char(
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required=True,
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help="Suffix of the SQL view. SQL full name will be computed and"
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" prefixed by 'x_bi_sql_view_'. Syntax should follow: "
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"https://www.postgresql.org/"
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"docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS",
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)
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view_name = fields.Char(
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compute="_compute_view_name",
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readonly=True,
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store=True,
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help="Full name of the SQL view",
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)
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model_name = fields.Char(
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compute="_compute_model_name",
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readonly=True,
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store=True,
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help="Full Qualified Name of the transient model that will" " be created.",
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)
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is_materialized = fields.Boolean(
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string="Is Materialized View",
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default=True,
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)
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materialized_text = fields.Char(compute="_compute_materialized_text", store=True)
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size = fields.Char(
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string="Database Size",
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readonly=True,
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help="Size of the materialized view and its indexes",
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)
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state = fields.Selection(selection_add=_STATE_SQL_EDITOR)
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view_order = fields.Char(
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required=True,
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default="pivot,graph,tree",
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help="Comma-separated text. Possible values:" ' "graph", "pivot" or "tree"',
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)
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query = fields.Text(
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help="SQL Request that will be inserted as the view. Take care to :\n"
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" * set a name for all your selected fields, specially if you use"
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" SQL function (like EXTRACT, ...);\n"
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" * Do not use 'SELECT *' or 'SELECT table.*';\n"
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" * prefix the name of the selectable columns by 'x_';",
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default="SELECT\n" " my_field as x_my_field\n" "FROM my_table",
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)
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domain_force = fields.Text(
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string="Extra Rule Definition",
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default="[]",
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help="Define here access restriction to data.\n"
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" Take care to use field name prefixed by 'x_'."
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" A global 'ir.rule' will be created."
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" A typical Multi Company rule is for exemple \n"
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" ['|', ('x_company_id','child_of', [user.company_id.id]),"
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"('x_company_id','=',False)].",
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)
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computed_action_context = fields.Text(compute="_compute_computed_action_context")
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action_context = fields.Text(
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default="{}",
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help="Define here a context that will be used"
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" by default, when creating the action.",
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)
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bi_sql_view_field_ids = fields.One2many(
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string="SQL Fields",
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comodel_name="bi.sql.view.field",
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inverse_name="bi_sql_view_id",
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)
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model_id = fields.Many2one(
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string="Flectra Model", comodel_name="ir.model", readonly=True
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)
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tree_view_id = fields.Many2one(
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string="Flectra Tree View", comodel_name="ir.ui.view", readonly=True
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)
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graph_view_id = fields.Many2one(
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string="Flectra Graph View", comodel_name="ir.ui.view", readonly=True
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)
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pivot_view_id = fields.Many2one(
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string="Flectra Pivot View", comodel_name="ir.ui.view", readonly=True
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)
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search_view_id = fields.Many2one(
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string="Flectra Search View", comodel_name="ir.ui.view", readonly=True
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)
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action_id = fields.Many2one(
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string="Flectra Action", comodel_name="ir.actions.act_window", readonly=True
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)
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menu_id = fields.Many2one(
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string="Flectra Menu", comodel_name="ir.ui.menu", readonly=True
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)
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cron_id = fields.Many2one(
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string="Flectra Cron",
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comodel_name="ir.cron",
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readonly=True,
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help="Cron Task that will refresh the materialized view",
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ondelete="cascade",
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)
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rule_id = fields.Many2one(string="Flectra Rule", comodel_name="ir.rule", readonly=True)
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sequence = fields.Integer(string="sequence")
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# Constrains Section
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@api.constrains("is_materialized")
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def _check_index_materialized(self):
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for rec in self.filtered(lambda x: not x.is_materialized):
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if rec.bi_sql_view_field_ids.filtered(lambda x: x.is_index):
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raise UserError(
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_("You can not create indexes on non materialized views")
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)
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@api.constrains("view_order")
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def _check_view_order(self):
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for rec in self:
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if rec.view_order:
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for vtype in rec.view_order.split(","):
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if vtype not in ("graph", "pivot", "tree"):
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raise UserError(
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_("Only graph, pivot or tree views are supported")
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)
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# Compute Section
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@api.depends("bi_sql_view_field_ids.graph_type")
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def _compute_computed_action_context(self):
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for rec in self:
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action = {
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"pivot_measures": [],
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"pivot_row_groupby": [],
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"pivot_column_groupby": [],
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}
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for field in rec.bi_sql_view_field_ids.filtered(
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lambda x: x.graph_type == "measure"
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):
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action["pivot_measures"].append(field.name)
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# If no measure are defined, we display by default the count
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# of the element, to avoid an empty view
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if not action["pivot_measures"]:
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action["pivot_measures"] = ["__count__"]
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for field in rec.bi_sql_view_field_ids.filtered(
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lambda x: x.graph_type == "row"
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):
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action["pivot_row_groupby"].append(field.name)
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for field in rec.bi_sql_view_field_ids.filtered(
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lambda x: x.graph_type == "col"
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):
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action["pivot_column_groupby"].append(field.name)
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rec.computed_action_context = str(action)
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@api.depends("is_materialized")
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def _compute_materialized_text(self):
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for sql_view in self:
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sql_view.materialized_text = (
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sql_view.is_materialized and "MATERIALIZED" or ""
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)
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@api.depends("technical_name")
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def _compute_view_name(self):
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for sql_view in self:
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sql_view.view_name = f"{sql_view._sql_prefix}{sql_view.technical_name}"
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@api.depends("technical_name")
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def _compute_model_name(self):
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for sql_view in self:
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sql_view.model_name = f"{sql_view._model_prefix}{sql_view.technical_name}"
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# Overload Section
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def write(self, vals):
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res = super().write(vals)
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if vals.get("sequence", False):
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for rec in self.filtered(lambda x: x.menu_id):
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rec.menu_id.sequence = rec.sequence
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return res
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def unlink(self):
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if any(view.state not in ("draft", "sql_valid") for view in self):
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raise UserError(
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_(
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"You can only unlink draft views."
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"If you want to delete them, first set them to draft."
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)
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)
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return super().unlink()
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def copy(self, default=None):
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self.ensure_one()
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default = dict(default or {})
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if "name" not in default:
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default["name"] = _("%s (Copy)") % self.name
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if "technical_name" not in default:
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default["technical_name"] = f"{self.technical_name}_copy"
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return super().copy(default=default)
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# Action Section
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def button_create_sql_view_and_model(self):
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for sql_view in self.filtered(lambda x: x.state == "sql_valid"):
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# Check if many2one fields are correctly
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bad_fields = sql_view.bi_sql_view_field_ids.filtered(
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lambda x: x.ttype == "many2one" and not x.many2one_model_id.id
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)
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if bad_fields:
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raise ValidationError(
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_("Please set related models on the following fields %s")
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% ",".join(bad_fields.mapped("name"))
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)
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# Create ORM and access
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sql_view._create_model_and_fields()
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sql_view._create_model_access()
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# Create SQL View and indexes
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sql_view._create_view()
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sql_view._create_index()
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if sql_view.is_materialized:
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if not sql_view.cron_id:
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sql_view.cron_id = (
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self.env["ir.cron"].create(sql_view._prepare_cron()).id
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)
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else:
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sql_view.cron_id.active = True
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sql_view.state = "model_valid"
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def button_reset_to_model_valid(self):
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views = self.filtered(lambda x: x.state == "ui_valid")
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views.mapped("tree_view_id").unlink()
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views.mapped("graph_view_id").unlink()
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views.mapped("pivot_view_id").unlink()
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views.mapped("search_view_id").unlink()
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views.mapped("action_id").unlink()
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views.mapped("menu_id").unlink()
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return views.write({"state": "model_valid"})
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def button_reset_to_sql_valid(self):
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self.button_reset_to_model_valid()
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views = self.filtered(lambda x: x.state == "model_valid")
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for sql_view in views:
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# Drop SQL View (and indexes by cascade)
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if sql_view.is_materialized:
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sql_view._drop_view()
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if sql_view.cron_id:
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sql_view.cron_id.active = False
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# Drop ORM
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sql_view._drop_model_and_fields()
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return views.write({"state": "sql_valid"})
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def button_set_draft(self):
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self.button_reset_to_model_valid()
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self.button_reset_to_sql_valid()
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return super().button_set_draft()
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def button_create_ui(self):
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self.tree_view_id = self.env["ir.ui.view"].create(self._prepare_tree_view()).id
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self.graph_view_id = (
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self.env["ir.ui.view"].create(self._prepare_graph_view()).id
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)
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self.pivot_view_id = (
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self.env["ir.ui.view"].create(self._prepare_pivot_view()).id
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)
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self.search_view_id = (
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self.env["ir.ui.view"].create(self._prepare_search_view()).id
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)
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self.action_id = (
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self.env["ir.actions.act_window"].create(self._prepare_action()).id
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)
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self.menu_id = self.env["ir.ui.menu"].create(self._prepare_menu()).id
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self.write({"state": "ui_valid"})
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def button_update_model_access(self):
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self._drop_model_access()
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self._create_model_access()
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self.write({"has_group_changed": False})
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def button_refresh_materialized_view(self):
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self._refresh_materialized_view()
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def button_open_view(self):
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return {
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"type": "ir.actions.act_window",
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"res_model": self.model_id.model,
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"search_view_id": self.search_view_id.id,
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"view_mode": self.action_id.view_mode,
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}
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# Prepare Function
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def _prepare_model(self):
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self.ensure_one()
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field_id = []
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for field in self.bi_sql_view_field_ids.filtered(
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lambda x: x.field_description is not False
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):
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field_id.append([0, False, field._prepare_model_field()])
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return {
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"name": self.name,
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"model": self.model_name,
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"access_ids": [],
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"field_id": field_id,
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}
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def _prepare_model_access(self):
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self.ensure_one()
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res = []
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for group in self.group_ids:
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res.append(
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{
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"name": _("%(model_name)s Access %(full_name)s")
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% {"model_name": self.model_name, "full_name": group.full_name},
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"model_id": self.model_id.id,
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"group_id": group.id,
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"perm_read": True,
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"perm_create": False,
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"perm_write": False,
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"perm_unlink": False,
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}
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)
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return res
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def _prepare_cron(self):
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now = datetime.now()
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return {
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"name": _("Refresh Materialized View %s") % self.view_name,
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"user_id": SUPERUSER_ID,
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"model_id": self.env["ir.model"]
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.search([("model", "=", self._name)], limit=1)
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.id,
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"state": "code",
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"code": "model._refresh_materialized_view_cron(%s)" % self.ids,
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"numbercall": -1,
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"interval_number": 1,
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"interval_type": "days",
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"nextcall": now + timedelta(days=1),
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"active": True,
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}
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def _prepare_rule(self):
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self.ensure_one()
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return {
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"name": _("Access %s") % self.name,
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"model_id": self.model_id.id,
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"domain_force": self.domain_force,
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"global": True,
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}
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def _prepare_tree_view(self):
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self.ensure_one()
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return {
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"name": self.name,
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"type": "tree",
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"model": self.model_id.model,
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"arch": """<?xml version="1.0"?>"""
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"""<tree string="Analysis">{}"""
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"""</tree>""".format(
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"".join([x._prepare_tree_field() for x in self.bi_sql_view_field_ids])
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),
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}
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def _prepare_graph_view(self):
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self.ensure_one()
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return {
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"name": self.name,
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"type": "graph",
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"model": self.model_id.model,
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"arch": """<?xml version="1.0"?>"""
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"""<graph string="Analysis" type="bar" stacked="True">{}"""
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"""</graph>""".format(
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"".join([x._prepare_graph_field() for x in self.bi_sql_view_field_ids])
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),
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}
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||
|
def _prepare_pivot_view(self):
|
||
|
self.ensure_one()
|
||
|
return {
|
||
|
"name": self.name,
|
||
|
"type": "pivot",
|
||
|
"model": self.model_id.model,
|
||
|
"arch": """<?xml version="1.0"?>"""
|
||
|
"""<pivot string="Analysis" stacked="True">{}"""
|
||
|
"""</pivot>""".format(
|
||
|
"".join([x._prepare_pivot_field() for x in self.bi_sql_view_field_ids])
|
||
|
),
|
||
|
}
|
||
|
|
||
|
def _prepare_search_view(self):
|
||
|
self.ensure_one()
|
||
|
return {
|
||
|
"name": self.name,
|
||
|
"type": "search",
|
||
|
"model": self.model_id.model,
|
||
|
"arch": """<?xml version="1.0"?>"""
|
||
|
"""<search string="Analysis">{}"""
|
||
|
"""<group expand="1" string="Group By">{}</group>"""
|
||
|
"""</search>""".format(
|
||
|
"".join(
|
||
|
[x._prepare_search_field() for x in self.bi_sql_view_field_ids]
|
||
|
),
|
||
|
"".join(
|
||
|
[
|
||
|
x._prepare_search_filter_field()
|
||
|
for x in self.bi_sql_view_field_ids
|
||
|
]
|
||
|
),
|
||
|
),
|
||
|
}
|
||
|
|
||
|
def _prepare_action(self):
|
||
|
self.ensure_one()
|
||
|
view_mode = self.view_order
|
||
|
first_view = view_mode.split(",")[0]
|
||
|
if first_view == "tree":
|
||
|
view_id = self.tree_view_id.id
|
||
|
elif first_view == "pivot":
|
||
|
view_id = self.pivot_view_id.id
|
||
|
else:
|
||
|
view_id = self.graph_view_id.id
|
||
|
action = safe_eval(self.computed_action_context)
|
||
|
for k, v in safe_eval(self.action_context).items():
|
||
|
action[k] = v
|
||
|
return {
|
||
|
"name": self._prepare_action_name(),
|
||
|
"res_model": self.model_id.model,
|
||
|
"type": "ir.actions.act_window",
|
||
|
"view_mode": view_mode,
|
||
|
"view_id": view_id,
|
||
|
"search_view_id": self.search_view_id.id,
|
||
|
"context": str(action),
|
||
|
}
|
||
|
|
||
|
def _prepare_action_name(self):
|
||
|
self.ensure_one()
|
||
|
if not self.is_materialized:
|
||
|
return self.name
|
||
|
return "{} ({})".format(
|
||
|
self.name,
|
||
|
datetime.utcnow().strftime("%m/%d/%Y %H:%M:%S UTC"),
|
||
|
)
|
||
|
|
||
|
def _prepare_menu(self):
|
||
|
self.ensure_one()
|
||
|
return {
|
||
|
"name": self.name,
|
||
|
"parent_id": self.env.ref("bi_sql_editor.menu_bi_sql_editor").id,
|
||
|
"action": "ir.actions.act_window,%s" % self.action_id.id,
|
||
|
"sequence": self.sequence,
|
||
|
}
|
||
|
|
||
|
# Custom Section
|
||
|
def _log_execute(self, req):
|
||
|
_logger.info("Executing SQL Request %s ..." % req)
|
||
|
self.env.cr.execute(req)
|
||
|
|
||
|
def _drop_view(self):
|
||
|
for sql_view in self:
|
||
|
self._log_execute(
|
||
|
f"DROP {sql_view.materialized_text} VIEW IF EXISTS {sql_view.view_name}"
|
||
|
)
|
||
|
sql_view.size = False
|
||
|
|
||
|
def _create_view(self):
|
||
|
for sql_view in self:
|
||
|
sql_view._drop_view()
|
||
|
try:
|
||
|
self._log_execute(sql_view._prepare_request_for_execution())
|
||
|
sql_view._refresh_size()
|
||
|
except ProgrammingError as e:
|
||
|
raise UserError(
|
||
|
_(
|
||
|
"SQL Error while creating %(materialized_text)s"
|
||
|
" VIEW %(view_name)s :\n %(error)s"
|
||
|
)
|
||
|
% {
|
||
|
"materialized_text": sql_view.materialized_text,
|
||
|
"view_name": sql_view.view_name,
|
||
|
"error": str(e),
|
||
|
}
|
||
|
) from e
|
||
|
|
||
|
def _create_index(self):
|
||
|
for sql_view in self:
|
||
|
for sql_field in sql_view.bi_sql_view_field_ids.filtered(
|
||
|
lambda x: x.is_index is True
|
||
|
):
|
||
|
self._log_execute(
|
||
|
f"CREATE INDEX {sql_field.index_name} ON {sql_view.view_name} "
|
||
|
f"({sql_field.name});"
|
||
|
)
|
||
|
|
||
|
def _create_model_and_fields(self):
|
||
|
for sql_view in self:
|
||
|
# Create model
|
||
|
sql_view.model_id = self.env["ir.model"].create(self._prepare_model()).id
|
||
|
sql_view.rule_id = self.env["ir.rule"].create(self._prepare_rule()).id
|
||
|
# Drop table, created by the ORM
|
||
|
if sql.table_exists(self._cr, sql_view.view_name):
|
||
|
req = "DROP TABLE %s" % sql_view.view_name
|
||
|
self._log_execute(req)
|
||
|
|
||
|
def _create_model_access(self):
|
||
|
for sql_view in self:
|
||
|
for item in sql_view._prepare_model_access():
|
||
|
self.env["ir.model.access"].create(item)
|
||
|
|
||
|
def _drop_model_access(self):
|
||
|
for sql_view in self:
|
||
|
self.env["ir.model.access"].search(
|
||
|
[("model_id", "=", sql_view.model_name)]
|
||
|
).unlink()
|
||
|
|
||
|
def _drop_model_and_fields(self):
|
||
|
for sql_view in self:
|
||
|
if sql_view.rule_id:
|
||
|
sql_view.rule_id.unlink()
|
||
|
if sql_view.model_id:
|
||
|
sql_view.model_id.with_context(_force_unlink=True).unlink()
|
||
|
|
||
|
def _hook_executed_request(self):
|
||
|
self.ensure_one()
|
||
|
req = (
|
||
|
"""
|
||
|
SELECT attnum,
|
||
|
attname AS column,
|
||
|
format_type(atttypid, atttypmod) AS type
|
||
|
FROM pg_attribute
|
||
|
WHERE attrelid = '%s'::regclass
|
||
|
AND NOT attisdropped
|
||
|
AND attnum > 0
|
||
|
ORDER BY attnum;"""
|
||
|
% self.view_name
|
||
|
)
|
||
|
self._log_execute(req)
|
||
|
return self.env.cr.fetchall()
|
||
|
|
||
|
def _prepare_request_check_execution(self):
|
||
|
self.ensure_one()
|
||
|
return f"CREATE VIEW {self.view_name} AS ({self.query});"
|
||
|
|
||
|
def _prepare_request_for_execution(self):
|
||
|
self.ensure_one()
|
||
|
query = (
|
||
|
"""
|
||
|
SELECT
|
||
|
CAST(row_number() OVER () as integer) AS id,
|
||
|
CAST(Null as timestamp without time zone) as create_date,
|
||
|
CAST(Null as integer) as create_uid,
|
||
|
CAST(Null as timestamp without time zone) as write_date,
|
||
|
CAST(Null as integer) as write_uid,
|
||
|
my_query.*
|
||
|
FROM
|
||
|
(%s) as my_query
|
||
|
"""
|
||
|
% self.query
|
||
|
)
|
||
|
return f"CREATE {self.materialized_text} VIEW {self.view_name} AS ({query});"
|
||
|
|
||
|
def _check_execution(self):
|
||
|
"""Ensure that the query is valid, trying to execute it.
|
||
|
a non materialized view is created for this check.
|
||
|
A rollback is done at the end.
|
||
|
After the execution, and before the rollback, an analysis of
|
||
|
the database structure is done, to know fields type."""
|
||
|
self.ensure_one()
|
||
|
sql_view_field_obj = self.env["bi.sql.view.field"]
|
||
|
columns = super()._check_execution()
|
||
|
field_ids = []
|
||
|
for column in columns:
|
||
|
existing_field = self.bi_sql_view_field_ids.filtered(
|
||
|
lambda x, c=column: x.name == c[1]
|
||
|
)
|
||
|
if existing_field:
|
||
|
# Update existing field
|
||
|
field_ids.append(existing_field.id)
|
||
|
existing_field.write({"sequence": column[0], "sql_type": column[2]})
|
||
|
else:
|
||
|
# Create a new one if name is prefixed by x_
|
||
|
if column[1][:2] == "x_":
|
||
|
field_ids.append(
|
||
|
sql_view_field_obj.create(
|
||
|
{
|
||
|
"sequence": column[0],
|
||
|
"name": column[1],
|
||
|
"sql_type": column[2],
|
||
|
"bi_sql_view_id": self.id,
|
||
|
}
|
||
|
).id
|
||
|
)
|
||
|
|
||
|
# Drop obsolete view field
|
||
|
self.bi_sql_view_field_ids.filtered(lambda x: x.id not in field_ids).unlink()
|
||
|
|
||
|
if not self.bi_sql_view_field_ids:
|
||
|
raise UserError(
|
||
|
_("No Column was found.\n" "Columns name should be prefixed by 'x_'.")
|
||
|
)
|
||
|
|
||
|
return columns
|
||
|
|
||
|
@api.model
|
||
|
def _refresh_materialized_view_cron(self, view_ids):
|
||
|
sql_views = self.search(
|
||
|
[
|
||
|
("is_materialized", "=", True),
|
||
|
("state", "in", ["model_valid", "ui_valid"]),
|
||
|
("id", "in", view_ids),
|
||
|
]
|
||
|
)
|
||
|
return sql_views._refresh_materialized_view()
|
||
|
|
||
|
def _refresh_materialized_view(self):
|
||
|
for sql_view in self.filtered(lambda x: x.is_materialized):
|
||
|
req = f"REFRESH {sql_view.materialized_text} VIEW {sql_view.view_name}"
|
||
|
self._log_execute(req)
|
||
|
sql_view._refresh_size()
|
||
|
if sql_view.action_id:
|
||
|
# Alter name of the action, to display last refresh
|
||
|
# datetime of the materialized view
|
||
|
sql_view.action_id.with_context(
|
||
|
lang=self.env.user.lang
|
||
|
).name = sql_view._prepare_action_name()
|
||
|
|
||
|
def _refresh_size(self):
|
||
|
for sql_view in self:
|
||
|
req = "SELECT pg_size_pretty(pg_total_relation_size('%s'));" % (
|
||
|
sql_view.view_name
|
||
|
)
|
||
|
self._log_execute(req)
|
||
|
sql_view.size = self.env.cr.fetchone()[0]
|
||
|
|
||
|
def check_manual_fields(self, model):
|
||
|
# check the fields we need are defined on self, to stop it going
|
||
|
# early on install / startup - particularly problematic during upgrade
|
||
|
if model._name.startswith(
|
||
|
self._model_prefix
|
||
|
) and "group_operator" in table_columns(self.env.cr, "bi_sql_view_field"):
|
||
|
# Use SQL instead of ORM, as ORM might not be fully initialised -
|
||
|
# we have no control over the order that fields are defined!
|
||
|
# We are not concerned about user security rules.
|
||
|
self.env.cr.execute(
|
||
|
"""
|
||
|
SELECT
|
||
|
f.name,
|
||
|
f.ttype,
|
||
|
f.group_operator
|
||
|
FROM
|
||
|
bi_sql_view v
|
||
|
LEFT JOIN bi_sql_view_field f ON f.bi_sql_view_id = v.id
|
||
|
WHERE
|
||
|
v.model_name = %s
|
||
|
;
|
||
|
""",
|
||
|
(model._name,),
|
||
|
)
|
||
|
sql_fields = self.env.cr.fetchall()
|
||
|
|
||
|
for sql_field in sql_fields:
|
||
|
if (
|
||
|
sql_field[0] in model._fields
|
||
|
and sql_field[1] in ("integer", "float")
|
||
|
and sql_field[2]
|
||
|
):
|
||
|
model._fields[sql_field[0]].group_operator = sql_field[2]
|
||
|
|
||
|
def button_preview_sql_expression(self):
|
||
|
self.button_validate_sql_expression()
|
||
|
res = self._execute_sql_request()
|
||
|
raise UserError("\n".join(map(lambda x: str(x), res[:100])))
|