Module:Tabular data/doc
This is the documentation page for Module:Tabular data
This module provides basic functions for interacting with tabular data on Wikimedia Commons.
cell
Returns the value of the cell at the given row index and column name.
Usage: Template:Mlx
A row index of 1 refers to the first row in the table. A row index of -1 refers to the last row in the table. It is an error to specify a row index of 0.
Examples
Latest death toll in c:Data:COVID-19 cases in Santa Clara County, California.tab (regardless of when the table was last updated):
Lua error in Module:Tabular_data at line 22: attempt to index field 'data' (a nil value).
lookup
Returns the value of the cell(s) in one or more output columns of the row matching the search key and column.
This function is reminiscent of LOOKUP() macros in popular spreadsheet applications, except that the search key must match exactly. (On the other hand, this means the table does not need to be sorted.)
Usage: Template:Mlx
If multiple columns are output without an explicit string format, this function formats the output as a human-readable list.
Some may find {{Tabular query}} (which uses this module) an intuitive way to obtain cell data as it resembles a simple SQL query.
Parameters
- Template:Para
- Page name on Commons with extension but no namespace
- Template:Para or Template:Para
- Value to find or pattern to match in column
- Template:Para
- Name of column to search in
- Template:Para
- Index of the match to output in case of multiple matching rows. A row index of
1refers to the first matching row. A row index of-1refers to the last matching row. It is an error to specify a row index of0. - Template:Para or Template:Para, Template:Para, ...
- Names of columns to output
- Template:Para
- String format to format the output
Examples
Total confirmed case count in c:Data:COVID-19 cases in Santa Clara County, California.tab on the day that the county issued a stay-at-home order:
Lua error in Module:Tabular_data at line 91: attempt to index field 'data' (a nil value).
The last day that a hundred or more patients with COVID-19 were in the hospital in c:Data:COVID-19 cases in Santa Clara County, California.tab:
Lua error in Module:Tabular_data at line 91: attempt to index field 'data' (a nil value).
Total number of administrators on all Wikimedia wikis using c:Data:Wikipedia statistics/data.tab:
Lua error in Module:Tabular_data at line 91: attempt to index field 'data' (a nil value).
Number of administrators and users on all Wikimedia wikis using c:Data:Wikipedia statistics/data.tab:
Lua error in Module:Tabular_data at line 91: attempt to index field 'data' (a nil value).
Note: Wikipedia statistics are shown as an illustration only. In practice, there is a high-performance module Template:Tlx to access Wikipedia statistics.
wikitable
Returns the entire data table as a (rather plain) table.
Usage: Template:Mlx
Examples
Template:Collapse top Lua error in Module:Tabular_data at line 139: attempt to index field 'data' (a nil value). Template:Collapse bottom
Implementation notes
The implementation of this function incorporates {{n/a}} (to represent null values), {{yes}} (true), and {{no}} (false). The templates themselves cannot be reused because they are incompatible with the mw.html library, which builds the table using an HTML DOM instead of pure wikitext.
Internationalization
You can most likely port this template to a wiki in another language without making major modifications. The wikitable function automatically localizes the table's description, column titles, and license name into the wiki's content language. It also formats numbers according to the content language. However, you should localize the cells representing true, false, and null by changing the values in the messages, bgColors, and colors variables to match the wiki's own {{yes}}, {{no}}, and {{n/a}} templates, respectively.
See also
- {{Json2table}} and Json2table#json2table
- {{NUMBEROF}}
