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NAFKA-crm-gui/src/wce_crm/backend/backend.py
T

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Python

from __future__ import annotations
import datetime
from typing import TYPE_CHECKING, Any, cast
import polars as pl
import sqlalchemy as sql
from wce_crm import db
from wce_crm.constants import TIMEZONE_CEST
from wce_crm.logging import logger_back as logger
from wce_crm.types import CompanyInfo, ContactPersonInfo, InitRecType, MainPageEntry
if TYPE_CHECKING:
from wce_crm.types import ExtAnId, ExtMaId, RecId
def _transform_for_gui_output(
data: pl.DataFrame,
) -> pl.DataFrame:
q = (
data.lazy()
.with_columns(
pl.col(pl.Datetime).dt.to_string("%d.%m.%Y"),
pl.col(pl.Date).dt.to_string("%d.%m.%Y"),
pl.when(pl.col(pl.Boolean))
.then(pl.lit("Ja"))
.otherwise(pl.lit("Nein"))
.name.keep(),
)
.with_columns(pl.all().cast(pl.String))
)
return q.collect()
def initrec_comp_search_choices() -> tuple[tuple[str, int], ...]:
# TODO no reload functionality
logger.debug("[Call backend] comp_search_choices")
q = db.DF_CRM_MASTER.lazy()
counter = pl.int_range(0, pl.len()).over(pl.col.ma_unternehmensname)
q = q.with_columns(
dedupl=pl.when(counter == 0)
.then(pl.col.ma_unternehmensname)
.otherwise(pl.format("{} ({})", pl.col.ma_unternehmensname, counter))
)
df = q.collect()
return tuple(zip(df["dedupl"], df["ma_id"]))
def initrec_comp_search_get_info(
ma_id: ExtMaId,
) -> CompanyInfo:
logger.debug("[Call backend] comp_search_get_info")
df = db.DF_CRM_MASTER.filter(pl.col.ma_id == ma_id)
if df.height > 1 or df.height == 0:
raise ValueError(f"Größe des zurückgelieferten Datenpakets ungültig: {df.height}")
df = _transform_for_gui_output(df)
return cast(CompanyInfo, df.row(0, named=True))
def initrec_comp_contact_person_search_choices(
ma_id: ExtMaId | None,
use_both_names: bool,
) -> tuple[tuple[str, int], ...]:
# TODO no reload functionality
logger.debug("[Call backend] contact_person_search_choices")
q = db.DF_CONTACT_PERSON.lazy()
if ma_id is not None:
q = q.filter(pl.col.ma_id == ma_id)
dedupl_col = pl.col.an_nachname
if use_both_names:
q = q.with_columns(
name_search=(pl.format("{}, {}", pl.col.an_nachname, pl.col.an_vorname))
)
dedupl_col = pl.col.name_search
counter = pl.int_range(0, pl.len()).over(dedupl_col)
q = q.with_columns(
dedupl=pl.when(counter == 0)
.then(dedupl_col)
.otherwise(pl.format("{} ({})", dedupl_col, counter))
)
df = q.collect()
return tuple(zip(df["dedupl"], df["an_id"]))
def initrec_comp_contact_person_search_get_info(
an_id: ExtAnId,
) -> ContactPersonInfo:
logger.debug("[Call backend] contact_person_search_get_info")
df = db.DF_CONTACT_PERSON.filter(pl.col.an_id == an_id)
if df.height > 1 or df.height == 0:
raise ValueError(f"Größe des zurückgelieferten Datenpakets ungültig: {df.height}")
df = _transform_for_gui_output(df)
return cast(ContactPersonInfo, df.row(0, named=True))
# // internals
def initrec_company_insert_initial_recording(
data: dict[str, Any],
) -> RecId:
logger.debug("[Call backend] insert_initial_recording")
stmt = db.grunderfassung_unternehmen.insert()
with db.ENGINE.begin() as conn:
ret = conn.execute(stmt, data)
if ret.rowcount == 0:
raise IOError("Entry was not inserted correctly")
prim_keys = ret.inserted_primary_key
assert prim_keys
return prim_keys[0]
def initrec_company_update_initial_recording(
id_: RecId,
data: dict[str, Any],
) -> None:
logger.debug("[Call backend] update_initial_recording")
stmt = db.grunderfassung_unternehmen.update().where(
db.grunderfassung_unternehmen.c.un_id == id_
)
with db.ENGINE.begin() as conn:
conn.execute(stmt, data)
def initrec_company_get_initial_recording(
id_: RecId,
) -> dict[str, Any]:
logger.debug("[Call backend] get_initial_recording")
stmt = db.grunderfassung_unternehmen.select().where(
db.grunderfassung_unternehmen.c.un_id == id_
)
with db.ENGINE.begin() as conn:
ret = conn.execute(stmt)
if ret.rowcount == 0:
raise KeyError(f"Database ID {id_} not found")
row = ret.fetchone()
assert row, "row was not obtained"
return row._asdict()
def initrec_company_delete_initial_recording(
id_: RecId,
) -> None:
logger.debug("[Call backend] delete_initial_recording")
stmt = db.grunderfassung_unternehmen.delete().where(
db.grunderfassung_unternehmen.c.un_id == id_
)
with db.ENGINE.begin() as conn:
ret = conn.execute(stmt)
if ret.rowcount == 0:
raise KeyError(f"Database ID {id_} not found for deletion")
def initrec_person_insert_initial_recording(
data: dict[str, Any],
) -> RecId:
logger.debug("[Call backend] insert_initial_recording")
stmt = db.grunderfassung_personen.insert()
with db.ENGINE.begin() as conn:
ret = conn.execute(stmt, data)
if ret.rowcount == 0:
raise IOError("Entry was not inserted correctly")
prim_keys = ret.inserted_primary_key
assert prim_keys
return prim_keys[0]
def initrec_person_update_initial_recording(
id_: RecId,
data: dict[str, Any],
) -> None:
logger.debug("[Call backend] update_initial_recording")
stmt = db.grunderfassung_personen.update().where(
db.grunderfassung_personen.c.pers_id == id_
)
with db.ENGINE.begin() as conn:
conn.execute(stmt, data)
def initrec_person_get_initial_recording(
id_: RecId,
) -> dict[str, Any]:
logger.debug("[Call backend] get_initial_recording")
stmt = db.grunderfassung_personen.select().where(
db.grunderfassung_personen.c.pers_id == id_
)
with db.ENGINE.begin() as conn:
ret = conn.execute(stmt)
if ret.rowcount == 0:
raise KeyError(f"Database ID {id_} not found")
row = ret.fetchone()
assert row, "row was not obtained"
return row._asdict()
def initrec_person_delete_initial_recording(
id_: RecId,
) -> None:
logger.debug("[Call backend] delete_initial_recording")
stmt = db.grunderfassung_personen.delete().where(
db.grunderfassung_personen.c.pers_id == id_
)
with db.ENGINE.begin() as conn:
ret = conn.execute(stmt)
if ret.rowcount == 0:
raise KeyError(f"Database ID {id_} not found for deletion")
# // main page interaction
def _main_page_get_company_list() -> list[MainPageEntry]:
logger.debug("[Call backend] get_company_list")
stmt = sql.select(
db.grunderfassung_unternehmen.c.un_id,
db.grunderfassung_unternehmen.c.Partnersuche__un_suche,
db.grunderfassung_unternehmen.c.Metadaten_aktualisierung,
)
with db.ENGINE.connect() as conn:
res = conn.execute(stmt)
main_page_companies: list[MainPageEntry] = []
for entry in res.mappings():
rec_id = entry["un_id"]
assert rec_id, "no RecID defined"
ma_id_external = entry["Partnersuche__un_suche"]
assert ma_id_external is not None, "external MA ID is NULL"
datetime_akt = cast(datetime.datetime, entry["Metadaten_aktualisierung"])
datetime_akt = datetime_akt.astimezone(TIMEZONE_CEST)
comp_info = initrec_comp_search_get_info(ma_id_external)
display_name = comp_info["ma_unternehmensname"]
main_page_companies.append(
MainPageEntry(
rec_id=rec_id,
display_name=display_name,
Metadaten_aktualisierung=datetime_akt,
type=InitRecType.COMPANY,
)
)
return main_page_companies
def _main_page_get_person_list() -> list[MainPageEntry]:
logger.debug("[Call backend] get_company_list")
stmt = sql.select(
db.grunderfassung_personen.c.pers_id,
db.grunderfassung_personen.c.Stammdaten__vorname,
db.grunderfassung_personen.c.Stammdaten__name,
db.grunderfassung_personen.c.Metadaten_aktualisierung,
)
with db.ENGINE.connect() as conn:
res = conn.execute(stmt)
main_page_persons: list[MainPageEntry] = []
for entry in res.mappings():
rec_id = entry["pers_id"]
assert rec_id, "no RecID defined"
datetime_akt = cast(datetime.datetime, entry["Metadaten_aktualisierung"])
datetime_akt = datetime_akt.astimezone()
surname: str = entry["Stammdaten__name"]
first_name: str = entry["Stammdaten__vorname"]
names_to_join = [n for n in (first_name, surname) if n]
display_name = " ".join(names_to_join)
main_page_persons.append(
MainPageEntry(
rec_id=rec_id,
display_name=display_name,
Metadaten_aktualisierung=datetime_akt,
type=InitRecType.PERSON,
)
)
return main_page_persons
def main_page_get_entries() -> list[MainPageEntry]:
companies = _main_page_get_company_list()
persons = _main_page_get_person_list()
all_entries = companies + persons
all_entries.sort(key=lambda x: x.Metadaten_aktualisierung, reverse=True)
return all_entries