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#
# DbCodegen - Cambalache DB Code Generator
#
# Copyright (C) 2021-2024 Juan Pablo Ugarte
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# Authors:
# Juan Pablo Ugarte <juanpablougarte@gmail.com>
#
import os
import sys
import sqlite3
class CambalacheDb:
def __init__(self):
# Create DB file
self.conn = sqlite3.connect(":memory:")
dirname = os.path.dirname(__file__) or "."
# Create DB tables
with open(os.path.join(dirname, "../cambalache/db/cmb_base.sql"), "r") as sql:
self.conn.executescript(sql.read())
with open(os.path.join(dirname, "../cambalache/db/cmb_project.sql"), "r") as sql:
self.conn.executescript(sql.read())
self.conn.commit()
def _get_table_data(self, table):
c = self.conn.cursor()
columns = []
for row in c.execute(f"PRAGMA table_info({table});"):
col = row[1]
col_type = row[2]
pk = row[5]
if col_type == "INTEGER":
col_type = "int"
elif col_type == "TEXT":
col_type = "str"
elif col_type == "BOOLEAN":
col_type = "bool"
elif col_type == "REAL":
col_type = "float"
else:
print("Error unknown type", col_type)
columns.append({"name": col, "type": col_type, "pk": pk})
c.close()
return columns
def dump_table_as_class(self, fd, table, klass, parent="CmbBase", mutable=False, construct_only=[]):
c = self.conn.cursor()
columns = self._get_table_data(table)
fd.write(f"\n\nclass {klass}({parent}):\n")
fd.write(f' __gtype_name__ = "{klass}"\n\n')
# PKs
all_pk_columns = ""
pks = []
for col in columns:
name = col['name']
prop_type = col['type']
if mutable and not col["pk"] and name not in construct_only:
continue
fd.write(f" {name} = GObject.Property(type={prop_type}")
fd.write(", flags=GObject.ParamFlags.READWRITE | GObject.ParamFlags.CONSTRUCT_ONLY")
if prop_type == "bool":
fd.write(", default=False")
fd.write(")\n")
if name in construct_only:
continue
pks.append(name)
all_pk_columns += f"self.{name}, "
all_columns = ""
all_columns_assign = ""
for col in columns:
all_columns += ", " + col["name"]
if mutable and not col["pk"]:
continue
all_columns_assign += f",\n {col['name']}={col['name']}"
_pk_columns = f"({', '.join(pks)})"
_pk_values = f"({', '.join(['?' for i in range(len(pks))])})"
# Init
fd.write("\n def __init__(self, **kwargs):\n")
fd.write(" super().__init__(**kwargs)\n")
# Class from_row()
fd.write("\n @classmethod\n")
fd.write(f" def from_row(cls, project{all_columns}):\n")
fd.write(f" return cls(project=project{all_columns_assign})\n")
if mutable:
for col in columns:
name = col['name']
if col["pk"] or name in construct_only:
continue
fd.write(f"\n @GObject.Property(type={col['type']}")
if col["type"] == "bool":
fd.write(", default = False")
fd.write(")\n")
fd.write(f" def {name}(self):\n")
fd.write(
f" return self.db_get(\"SELECT {name} FROM {table} WHERE {_pk_columns} IS {_pk_values};\",\n"
)
fd.write(f" ({all_pk_columns}))\n")
fd.write(f"\n @{name}.setter\n")
fd.write(f" def _set_{name}(self, value):\n")
fd.write(f" self.db_set(\"UPDATE {table} SET {name}=? WHERE {_pk_columns} IS {_pk_values};\",\n")
fd.write(f" ({all_pk_columns}), value)\n")
c.close()
def dump(self, filename):
with open(filename, "w") as fd:
fd.write(
"""# flake8: noqa
# THIS FILE IS AUTOGENERATED, DO NOT EDIT!!!
#
# Cambalache Base Object wrappers
#
# Copyright (C) 2021-2024 Juan Pablo Ugarte
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation;
# version 2.1 of the License.
#
# library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# Authors:
# Juan Pablo Ugarte <juanpablougarte@gmail.com>
#
# SPDX-License-Identifier: LGPL-2.1-only
#
from gi.repository import GObject
from .cmb_base import CmbBase
from .cmb_base_file_monitor import CmbBaseFileMonitor
"""
)
# Base Objects
self.dump_table_as_class(fd, "library", "CmbBaseLibraryInfo", mutable=True)
self.dump_table_as_class(fd, "property", "CmbBasePropertyInfo")
self.dump_table_as_class(fd, "signal", "CmbSignalInfo")
self.dump_table_as_class(fd, "type", "CmbBaseTypeInfo")
self.dump_table_as_class(fd, "type_data", "CmbBaseTypeDataInfo")
self.dump_table_as_class(fd, "type_data_arg", "CmbBaseTypeDataArgInfo")
self.dump_table_as_class(fd, "type_child_type", "CmbTypeChildInfo")
self.dump_table_as_class(fd, "type_internal_child", "CmbBaseTypeInternalChildInfo")
# Project Objects
self.dump_table_as_class(fd, "ui", "CmbBaseUI", mutable=True, parent="CmbBaseFileMonitor")
self.dump_table_as_class(fd, "css", "CmbBaseCSS", mutable=True, parent="CmbBaseFileMonitor")
self.dump_table_as_class(fd, "gresource", "CmbBaseGResource", mutable=True, parent="CmbBaseFileMonitor", construct_only=["resource_type"])
self.dump_table_as_class(fd, "object_property", "CmbBaseProperty", mutable=True)
self.dump_table_as_class(fd, "object_layout_property", "CmbBaseLayoutProperty", mutable=True)
self.dump_table_as_class(fd, "object_signal", "CmbSignal", mutable=True)
self.dump_table_as_class(fd, "object", "CmbBaseObject", mutable=True)
self.dump_table_as_class(fd, "object_data", "CmbBaseObjectData", mutable=True)
fd.close()
os.system(f"black {filename}")
if __name__ == "__main__":
if len(sys.argv) != 2:
print(f"Usage: {sys.argv[0]} output.py")
exit()
db = CambalacheDb()
db.dump(sys.argv[1])
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