Move documentation for revbank.products from plugins/ to lib/
This commit is contained in:
Juerd Waalboer
parent
b22cc4c997
commit
763a8857ad
3 changed files with 164 additions and 146 deletions
|
|
@ -116,13 +116,13 @@ describe the inner workings in more detail:
|
|||
- [RevBank::FileIO](lib/RevBank/FileIO.pod) - reading and writing files
|
||||
- [RevBank::Global](lib/RevBank/Global.pod) - constants and utility functions
|
||||
- [RevBank::Plugins](lib/RevBank/Plugins.pod) - writing plugins
|
||||
- [RevBank::Products](lib/RevBank/Products.pod) - revbank.products file format
|
||||
- [RevBank::TextEditor](lib/RevBank/TextEditor.pod) - internal pager and editor
|
||||
- [RevBank::Users](lib/RevBank/Users.pod) - user accounts and special accounts
|
||||
|
||||
The plugins are mostly undocumented, but some have useful hints in the source
|
||||
files, and some have actual documentation:
|
||||
|
||||
- [products](plugins/products.pod)
|
||||
- [statiegeld](plugins/statiegeld.pod)
|
||||
- [statiegeld\_tokens](plugins/statiegeld_tokens.pod)
|
||||
- [vat](plugins/vat.pod)
|
||||
|
|
|
|||
156
lib/RevBank/Products.pod
Normal file
156
lib/RevBank/Products.pod
Normal file
|
|
@ -0,0 +1,156 @@
|
|||
=head1 NAME
|
||||
|
||||
RevBank::Products - Product list
|
||||
|
||||
=head1 SYNOPISIS
|
||||
|
||||
# Comments are lines that begin with a # character.
|
||||
# Empty lines are ignored.
|
||||
|
||||
8710447032756 0.80 "Festini Peer"
|
||||
4029764001807,clubmate 1.40 "Club-Mate" +half +pf
|
||||
pf 0.15@+pfand "Pfand NRW-Flasche"
|
||||
+half -50% "50% discount \\o/"
|
||||
123 0.42 "Hashtag example" #tag #tag2=42
|
||||
|
||||
=head1 DESCRIPTION
|
||||
|
||||
This module implements a products database, based on a text file. It supports
|
||||
additional fees, discounts, compound products, and optional metadata that can
|
||||
be read by plugins.
|
||||
|
||||
=head1 CONFIGURATION
|
||||
|
||||
The configuration for this plugin lives in a text file called
|
||||
C<revbank.products>.
|
||||
|
||||
Whitespace at the beginning or end of a line are ignored. Blank lines are
|
||||
ignored. Comments are lines that start with C<#> and are also ignored. Note
|
||||
that a whole line is either a comment or a data line; trailing comments are
|
||||
not supported and C<#> is a valid character in a product description.
|
||||
|
||||
Data lines have whitespace-separated columns:
|
||||
|
||||
=head2 Product ids
|
||||
|
||||
One or more product ids, separated by commas (no whitespace before or after the
|
||||
commas). There is no way to have a comma or whitespace in a product id, but
|
||||
every other printable character is valid.
|
||||
|
||||
The first product id on the line is considered canonical, the rest are aliases.
|
||||
|
||||
Note: if a product id is the same as another RevBank command (e.g. a username),
|
||||
the first plugin that accepts the command will "win"; the precedence order is
|
||||
defined by the C<revbank.plugins> configuration file. However, when a product
|
||||
id appears multiple times within C<revbank.products>, the I<last> one is used.
|
||||
|
||||
Product ids that begin with C<+> can only be used as addons. When entered as
|
||||
user input, it will be ignored by the C<products> plugin.
|
||||
|
||||
=head2 Price
|
||||
|
||||
The price of the product. This is the price to be deducted from the user's
|
||||
account when they check out with this product in the cart. When it is a
|
||||
negative number, the user will instead have money added to their account when
|
||||
"buying" this product.
|
||||
|
||||
Optionally, the price can be augmented with an C<@> sign and the name of the
|
||||
contra account. When no contra account is specified, C<+sales/products> is used.
|
||||
Internal accounts (that start with C<-> or C<+>) are created automatically. A
|
||||
regular account can also be used, but has to exist before the product can be
|
||||
used.
|
||||
|
||||
(Note on internal accounts because they aren't documented elsewhere: liability
|
||||
and revenue accounts begin with C<+>, asset and expense accounts begin with
|
||||
C<->. The C<+> accounts typically grow larger over time, while C<-> accounts
|
||||
typically go negative. In general, you would use a C<+> account in
|
||||
C<revbank.products>. User accounts are liability accounts.)
|
||||
|
||||
=head2 Description
|
||||
|
||||
The description, like other columns, may contain whitespace, but to use
|
||||
whitespace, either the entire field "needs quotes" around it, or the whitespace
|
||||
can be escaped with backslashes.
|
||||
|
||||
It is suggested to always use quotes around the description.
|
||||
|
||||
=head2 Additional fields
|
||||
|
||||
=head3 Addons
|
||||
|
||||
Addons are products that are added as part of the main product. They are
|
||||
specified after the description, with a C<+> sign that has whitespace before
|
||||
it, and no whitespace after it.
|
||||
|
||||
When specifying an addon C<+foo>, and no product with the id C<+foo> exists,
|
||||
the product id C<foo> is used instead. The difference is that a product id
|
||||
C<+foo> can only be used as an addon for another product, while C<foo> can be
|
||||
used either as an addon or a manually entered as a standalone product.
|
||||
|
||||
example_id 2.20 "Example product" +first +second
|
||||
+first 1.20 "First thing"
|
||||
second 0.80 "Second thing"
|
||||
|
||||
In this example, the final price of the example product will be 4.20. It is not
|
||||
possible to buy the first thing separate, but it is possible to buy the second
|
||||
thing separate.
|
||||
|
||||
The addon product must be specified in C<revbank.products>; market products
|
||||
cannot be used as addons.
|
||||
|
||||
When a product has addons, it becomes a compound product. This can be used to
|
||||
separate a product into individual counter accounts for bookkeeping purposes,
|
||||
to add a bottle deposit, or to add other additional fees or discounts.
|
||||
|
||||
When a compound product has a bare price that isn't 0.00, the bare price is
|
||||
listed as a component named "Product".
|
||||
|
||||
A product can have multiple addons. Addon products themselves can also have
|
||||
further addons, but circular recursion is not supported.
|
||||
|
||||
=head4 Percentage addons
|
||||
|
||||
As a special case, an addon's price can be a percentage. In this case, the
|
||||
price is calculated from the sum of the the product components I<up to that
|
||||
point> that have I<the same contra account> as the percentage addon.
|
||||
|
||||
So, given the following example,
|
||||
|
||||
example_id 0.90 "Example product" +some_fee +discount
|
||||
+some_fee 0.15@+fees "Some fee; might be a bottle deposit"
|
||||
+discount -50% "Special offer discount!"
|
||||
|
||||
only 0.45 is discounted, because the 0.15 has a different contra account. While
|
||||
complicated, this is probably what you want in most cases. There is currently
|
||||
no way to apply a discount to the product with all of its addons.
|
||||
|
||||
A percentage addon must have a product_id that begins with C<+>.
|
||||
|
||||
=head3 Tags
|
||||
|
||||
Additional metadata can be given in additional fields that begin with C<#> and
|
||||
the name of the tag, optionally followed by C<=> and a value to turn it into a
|
||||
key/value pair. If no value is specified, a value of C<1> is used.
|
||||
|
||||
The name of a hashtag must contain only C<A-Z a-z 0-9 _> characters. There must
|
||||
not be whitespace after the C<#> or around the C<=>.
|
||||
|
||||
Like all the fields, the field can be quoted to contain whitespace. Note,
|
||||
however, that the quotes must be placed around the entire field, not just the
|
||||
value part.
|
||||
|
||||
ht1 0.42 "Just one hashtag" #tag
|
||||
ht2 0.42 "Two hashtags!" #tag #key=value
|
||||
ht3 0.42 "Surprising syntax" "#x=spaces in value"
|
||||
|
||||
Tags can be accessed by custom plugins, but are currently ignored by upstream
|
||||
RevBank and its plugins.
|
||||
|
||||
=head3 Other additional fields
|
||||
|
||||
When any field is added after the description, that does not begin with C<+> or
|
||||
C<#>, RevBank currently assumes it's the old syntax (which is not described in
|
||||
the current version of this document!), and parses it using the old semantics
|
||||
while showing a warning.
|
||||
|
||||
This compatibility feature will be removed from a future version of RevBank.
|
||||
|
|
@ -2,154 +2,16 @@
|
|||
|
||||
products - RevBank plugin for selling products
|
||||
|
||||
=head1 SYNOPISIS
|
||||
|
||||
# Comments are lines that begin with a # character.
|
||||
# Empty lines are ignored.
|
||||
|
||||
8710447032756 0.80 "Festini Peer"
|
||||
4029764001807,clubmate 1.40 "Club-Mate" +half +pf
|
||||
pf 0.15@+pfand "Pfand NRW-Flasche"
|
||||
+half -50% "50% discount \\o/"
|
||||
123 0.42 "Hashtag example" #tag #tag2=42
|
||||
|
||||
=head1 DESCRIPTION
|
||||
|
||||
This plugin turns products from a product list into RevBank commands,
|
||||
This plugin turns products from the product list into RevBank commands,
|
||||
that add the respective products as Entries to the current Cart.
|
||||
|
||||
Note that by design, RevBank does not depend on this plugin or the products
|
||||
list that is shared between some of the plugins. It is possible to use a
|
||||
different source of products (e.g. an external database) in addition to, or
|
||||
instead of, this plugin.
|
||||
|
||||
=head1 CONFIGURATION
|
||||
|
||||
The configuration for this plugin lives in a text file called
|
||||
C<revbank.products>.
|
||||
|
||||
Whitespace at the beginning or end of a line are ignored. Blank lines are
|
||||
ignored. Comments are lines that start with C<#> and are also ignored. Note
|
||||
that a whole line is either a comment or a data line; trailing comments are
|
||||
not supported and C<#> is a valid character in a product description.
|
||||
|
||||
Data lines have whitespace-separated columns:
|
||||
|
||||
=head2 Product ids
|
||||
|
||||
One or more product ids, separated by commas (no whitespace before or after the
|
||||
commas). There is no way to have a comma or whitespace in a product id, but
|
||||
every other printable character is valid.
|
||||
|
||||
The first product id on the line is considered canonical, the rest are aliases.
|
||||
|
||||
Note: if a product id is the same as another RevBank command (e.g. a username),
|
||||
the first plugin that accepts the command will "win"; the precedence order is
|
||||
defined by the C<revbank.plugins> configuration file. However, when a product
|
||||
id appears multiple times within C<revbank.products>, the I<last> one is used.
|
||||
|
||||
Product ids that begin with C<+> can only be used as addons. When entered as
|
||||
user input, it will be ignored by the C<products> plugin.
|
||||
|
||||
=head2 Price
|
||||
|
||||
The price of the product. This is the price to be deducted from the user's
|
||||
account when they check out with this product in the cart. When it is a
|
||||
negative number, the user will instead have money added to their account when
|
||||
"buying" this product.
|
||||
|
||||
Optionally, the price can be augmented with an C<@> sign and the name of the
|
||||
contra account. When no contra account is specified, C<+sales/products> is used.
|
||||
Internal accounts (that start with C<-> or C<+>) are created automatically. A
|
||||
regular account can also be used, but has to exist before the product can be
|
||||
used.
|
||||
|
||||
(Note on internal accounts because they aren't documented elsewhere: liability
|
||||
and revenue accounts begin with C<+>, asset and expense accounts begin with
|
||||
C<->. The C<+> accounts typically grow larger over time, while C<-> accounts
|
||||
typically go negative. In general, you would use a C<+> account in
|
||||
C<revbank.products>. User accounts are liability accounts.)
|
||||
|
||||
=head2 Description
|
||||
|
||||
The description, like other columns, may contain whitespace, but to use
|
||||
whitespace, either the entire field "needs quotes" around it, or the whitespace
|
||||
can be escaped with backslashes.
|
||||
|
||||
It is suggested to always use quotes around the description.
|
||||
|
||||
=head2 Additional fields
|
||||
|
||||
=head3 Addons
|
||||
|
||||
Addons are products that are added as part of the main product. They are
|
||||
specified after the description, with a C<+> sign that has whitespace before
|
||||
it, and no whitespace after it.
|
||||
|
||||
When specifying an addon C<+foo>, and no product with the id C<+foo> exists,
|
||||
the product id C<foo> is used instead. The difference is that a product id
|
||||
C<+foo> can only be used as an addon for another product, while C<foo> can be
|
||||
used either as an addon or a manually entered as a standalone product.
|
||||
|
||||
example_id 2.20 "Example product" +first +second
|
||||
+first 1.20 "First thing"
|
||||
second 0.80 "Second thing"
|
||||
|
||||
In this example, the final price of the example product will be 4.20. It is not
|
||||
possible to buy the first thing separate, but it is possible to buy the second
|
||||
thing separate.
|
||||
|
||||
The addon product must be specified in C<revbank.products>; market products
|
||||
cannot be used as addons.
|
||||
|
||||
When a product has addons, it becomes a compound product. This can be used to
|
||||
separate a product into individual counter accounts for bookkeeping purposes,
|
||||
to add a bottle deposit, or to add other additional fees or discounts.
|
||||
|
||||
When a compound product has a bare price that isn't 0.00, the bare price is
|
||||
listed as a component named "Product".
|
||||
|
||||
A product can have multiple addons. Addon products themselves can also have
|
||||
further addons, but circular recursion is not supported.
|
||||
|
||||
=head4 Percentage addons
|
||||
|
||||
As a special case, an addon's price can be a percentage. In this case, the
|
||||
price is calculated from the sum of the the product components I<up to that
|
||||
point> that have I<the same contra account> as the percentage addon.
|
||||
|
||||
So, given the following example,
|
||||
|
||||
example_id 0.90 "Example product" +some_fee +discount
|
||||
+some_fee 0.15@+fees "Some fee; might be a bottle deposit"
|
||||
+discount -50% "Special offer discount!"
|
||||
|
||||
only 0.45 is discounted, because the 0.15 has a different contra account. While
|
||||
complicated, this is probably what you want in most cases. There is currently
|
||||
no way to apply a discount to the product with all of its addons.
|
||||
|
||||
A percentage addon must have a product_id that begins with C<+>.
|
||||
|
||||
=head3 Tags
|
||||
|
||||
Additional metadata can be given in additional fields that begin with C<#> and
|
||||
the name of the tag, optionally followed by C<=> and a value to turn it into a
|
||||
key/value pair. If no value is specified, a value of C<1> is used.
|
||||
|
||||
The name of a hashtag must contain only C<A-Z a-z 0-9 _> characters. There must
|
||||
not be whitespace after the C<#> or around the C<=>.
|
||||
|
||||
Like all the fields, the field can be quoted to contain whitespace. Note,
|
||||
however, that the quotes must be placed around the entire field, not just the
|
||||
value part.
|
||||
|
||||
ht1 0.42 "Just one hashtag" #tag
|
||||
ht2 0.42 "Two hashtags!" #tag #key=value
|
||||
ht3 0.42 "Surprising syntax" "#x=spaces in value"
|
||||
|
||||
Tags can be accessed by custom plugins, but are currently ignored by upstream
|
||||
RevBank and its plugins.
|
||||
|
||||
=head3 Other additional fields
|
||||
|
||||
When any field is added after the description, that does not begin with C<+> or
|
||||
C<#>, RevBank currently assumes it's the old syntax (which is not described in
|
||||
the current version of this document!), and parses it using the old semantics
|
||||
while showing a warning.
|
||||
|
||||
This compatibility feature will be removed from a future version of RevBank.
|
||||
See the documentation for C<RevBank::Products> (hint: in C<lib/>).
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue