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Loading order of the demo fixtures

Lines starting with >>> in this document are code snippets that get tested as part of our development workflow.

>>> from lino import startup
>>> startup('lino_book.projects.cosi4.settings')
>>> from lino.api.doctest import *

The application developer is responsible for specifying a meaningful set of names in the demo_fixtures setting. We recommend to define the following names of demo fixtures:

std minimal_ledger demo demo_bookings payments demo2 demo3 checksummaries checkdata

std minimal_ledger demo demo_bookings payments demo2 demo3 checksummaries checkdata

With this convention we can see each fixture name as a loading phase.

The loading order of demo data is important because the fixtures of the Lino Extensions Library are inter-dependent. They create users, cities, journals, contacts, invoices, payments, reports, notifications, … you cannot write invoices if you have no customers, and an accounting report makes no sense if bank statements haven’t been entered.

Lino basically uses Django’s approach of finding demo fixtures: When Django gets a series of fixture names to load, it will load them in the specified order, and for each fixture will ask each plugin to load that fixture. If a plugin doesn’t define a fixture of that name, it simply does nothing.

The demo_fixtures setting is a string with a space-separated list of fixture names to be loaded by pm prep.

all_countries

all_countries

The all_countries fixture defines 224 countries, 195 of which have a 2-letter ISO code and 29 have a 4-letter ISO code because they no longer exist.

The all_countries fixture is not part of the default list because few_countries is more practical for testing and manipulating.

Until 2024-03-10 it defined 46 more “countries” like NF Norfolk Island, MQ Martinique and NC New Caledonia.

>>> qs = countries.Country.objects.all()
>>> qs.count()
224
>>> n = 0
>>> for o in qs:
...    if len(o.isocode) == 2:
...        print(o.pk, o.name)
...        n += 1
... 
AD Andorra
AE United Arab Emirates
AF Afghanistan
AG Antigua and Barbuda
AL Albania
AM Armenia
AO Angola
AR Argentina
AT Austria
AU Australia
AZ Azerbaijan
BA Bosnia and Herzegovina
BB Barbados
BD Bangladesh
BE Belgium
BF Burkina Faso
BG Bulgaria
BH Bahrain
BI Burundi
BJ Benin
BN Brunei
BO Bolivia
BR Brazil
BS The Bahamas
BT Bhutan
BW Botswana
BY Belarus
BZ Belize
CA Canada
CD Democratic Republic of the Congo
CF Central African Republic
CG Republic of the Congo
CH Switzerland
CI Ivory Coast
CL Chile
CM Cameroon
CN People's Republic of China
CO Colombia
CR Costa Rica
CU Cuba
CV Cape Verde
CY Cyprus
CZ Czech Republic
DE Germany
DJ Djibouti
DM Dominica
DO Dominican Republic
DZ Algeria
EC Ecuador
EE Estonia
EG Egypt
ER Eritrea
ES Spain
ET Ethiopia
FI Finland
FJ Fiji
FM Federated States of Micronesia
FR France
GA Gabon
GB United Kingdom
GD Grenada
GE Georgia
GH Ghana
GM ...Gambia
GN Guinea
GQ Equatorial Guinea
GR Greece
GT Guatemala
GW Guinea-Bissau
GY Guyana
HN Honduras
HR Croatia
HT Haiti
HU Hungary
ID Indonesia
IE Republic of Ireland
IL Israel
IN India
IQ Iraq
IR Iran
IS Iceland
IT Italy
JM Jamaica
JO Jordan
JP Japan
KE Kenya
KG Kyrgyzstan
KH Cambodia
KI Kiribati
KM Comoros
KN Saint Kitts and Nevis
KP North Korea
KR South Korea
KW Kuwait
KZ Kazakhstan
LA Laos
LB Lebanon
LC Saint Lucia
LI Liechtenstein
LK Sri Lanka
LR Liberia
LS Lesotho
LT Lithuania
LU Luxembourg
LV Latvia
LY Libya
MA Morocco
MC Monaco
MD Moldova
ME Montenegro
MG Madagascar
MH Marshall Islands
MK North Macedonia
ML Mali
MM Myanmar
MN Mongolia
MR Mauritania
MT Malta
MU Mauritius
MV Maldives
MW Malawi
MX Mexico
MY Malaysia
MZ Mozambique
NA Namibia
NE Niger
NG Nigeria
NI Nicaragua
NL Kingdom of the Netherlands
NO Norway
NP Nepal
NR Nauru
NZ New Zealand
OM Oman
PA Panama
PE Peru
PG Papua New Guinea
PH Philippines
PK Pakistan
PL Poland
PS State of Palestine
PT Portugal
PW Palau
PY Paraguay
QA Qatar
RO Romania
RS Serbia
RU Russia
RW Rwanda
SA Saudi Arabia
SB Solomon Islands
SC Seychelles
SD Sudan
SE Sweden
SG Singapore
SI Slovenia
SK Slovakia
SL Sierra Leone
SM San Marino
SN Senegal
SO Somalia
SR Suriname
SS South Sudan
ST São Tomé and Príncipe
SV El Salvador
SY Syria
SZ Eswatini
TD Chad
TG Togo
TH Thailand
TJ Tajikistan
TL East Timor
TM Turkmenistan
TN Tunisia
TO Tonga
TR Turkey
TT Trinidad and Tobago
TV Tuvalu
TW Taiwan
TZ Tanzania
UA Ukraine
UG Uganda
US United States of America
UY Uruguay
UZ Uzbekistan
VA Vatican City
VC Saint Vincent and the Grenadines
VE Venezuela
VN Vietnam
VU Vanuatu
WS Samoa
YE Yemen
ZA South Africa
ZM Zambia
ZW Zimbabwe
>>> n
195

std

std

The std fixtures should add default database content expected to be in a virgin database even when no “demo data” is requested. This should always be the first fixture of your demo_fixtures setting. It is provided by the following plugins:

minimal_ledger

minimal_ledger

Add minimal config data. Should come after std and before demo. Some day we should rename this to “predemo”

demo

demo

Adds master demo data.

demo_bookings

demo_bookings

Adds more demo data (originally “bookings”). Should come after demo.

  • lino_xl.lib.invoicing creates monthly invoicing plans and executes them. Starts a January 1st of lino_xl.lib.accounting.Plugin.start_year. Stops 2 months before today (we “forgot” to run invoicing the last two months) because we want to have something in our invoicing plan.

  • lino_xl.lib.accounting Creates fictive monthly purchase invoices. For some of them it creates a dummy upload file that represents the source document.

  • lino_xl.lib.trading creates fictive monthly sales.

payments

payments

Adds even more demo data (originally “payments”). Should come after demo_bookings.

  • lino_xl.lib.bevat creates a Belgian VAT office and some VAT declarations.

  • lino_xl.lib.bevats creates a Belgian VAT office and some VAT declarations.

  • lino_xl.lib.eevat creates an Estonian VAT office and some VAT declarations.

  • lino_xl.lib.finan creates automatic monthly payment orders and bank statements. Bank statements of last month are not yet entered into database

demo2

demo2

Add final demo data.

demo3

demo3
  • lino.modlib.uploads creates an orphan file foo.pdf in uploads folder and removes the file of one first upload entry to simulate some data issues to detect by checkdata.

checksummaries

checksummaries

checkdata

checkdata

Should come after demo2.

This fixture should always be the last in your demo_fixtures setting.