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sqlmodel/docs_src/tutorial/update/tutorial004_py310.py at patch-1 · ArianHamdi/sqlmodel · GitHub
ArianHamdi
sqlmodel
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sqlmodel
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tutorial
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update
/
tutorial004_py310.py
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from
sqlmodel
import
Field
,
Session
,
SQLModel
,
create_engine
,
select
class
Hero
(
SQLModel
,
table
=
True
):
id
:
int
|
None
=
Field
(
default
=
None
,
primary_key
=
True
)
name
:
str
=
Field
(
index
=
True
)
secret_name
:
str
age
:
int
|
None
=
Field
(
default
=
None
,
index
=
True
)
sqlite_file_name
=
"database.db"
sqlite_url
=
f"sqlite:///
{
sqlite_file_name
}
"
engine
=
create_engine
(
sqlite_url
,
echo
=
True
)
def
create_db_and_tables
():
SQLModel
.
metadata
.
create_all
(
engine
)
def
create_heroes
():
hero_1
=
Hero
(
name
=
"Deadpond"
,
secret_name
=
"Dive Wilson"
)
hero_2
=
Hero
(
name
=
"Spider-Boy"
,
secret_name
=
"Pedro Parqueador"
)
hero_3
=
Hero
(
name
=
"Rusty-Man"
,
secret_name
=
"Tommy Sharp"
,
age
=
48
)
hero_4
=
Hero
(
name
=
"Tarantula"
,
secret_name
=
"Natalia Roman-on"
,
age
=
32
)
hero_5
=
Hero
(
name
=
"Black Lion"
,
secret_name
=
"Trevor Challa"
,
age
=
35
)
hero_6
=
Hero
(
name
=
"Dr. Weird"
,
secret_name
=
"Steve Weird"
,
age
=
36
)
hero_7
=
Hero
(
name
=
"Captain North America"
,
secret_name
=
"Esteban Rogelios"
,
age
=
93
)
with
Session
(
engine
)
as
session
:
session
.
add
(
hero_1
)
session
.
add
(
hero_2
)
session
.
add
(
hero_3
)
session
.
add
(
hero_4
)
session
.
add
(
hero_5
)
session
.
add
(
hero_6
)
session
.
add
(
hero_7
)
session
.
commit
()
def
update_heroes
():
with
Session
(
engine
)
as
session
:
statement
=
select
(
Hero
).
where
(
Hero
.
name
==
"Spider-Boy"
)
# (1)!
results
=
session
.
exec
(
statement
)
# (2)!
hero_1
=
results
.
one
()
# (3)!
print
(
"Hero 1:"
,
hero_1
)
# (4)!
statement
=
select
(
Hero
).
where
(
Hero
.
name
==
"Captain North America"
)
# (5)!
results
=
session
.
exec
(
statement
)
# (6)!
hero_2
=
results
.
one
()
# (7)!
print
(
"Hero 2:"
,
hero_2
)
# (8)!
hero_1
.
age
=
16
# (9)!
hero_1
.
name
=
"Spider-Youngster"
# (10)!
session
.
add
(
hero_1
)
# (11)!
hero_2
.
name
=
"Captain North America Except Canada"
# (12)!
hero_2
.
age
=
110
# (13)!
session
.
add
(
hero_2
)
# (14)!
session
.
commit
()
# (15)!
session
.
refresh
(
hero_1
)
# (16)!
session
.
refresh
(
hero_2
)
# (17)!
print
(
"Updated hero 1:"
,
hero_1
)
# (18)!
print
(
"Updated hero 2:"
,
hero_2
)
# (19)!
# (20)!
def
main
():
create_db_and_tables
()
create_heroes
()
update_heroes
()
if
__name__
==
"__main__"
:
main
()
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