Extension:Cargo/zh
Cargo是MediaWiki的一项扩展,可以提供轻量的方式来存储和查询数据,这些数据是通常通过信息框(infobox)等模板调用的。 Cargo在概念上类似于Semantic MediaWiki 扩展,但是有许多优点,比如容易安装,容易使用。
Cargo将所有的数据存在数据库表中,而这些表可以被MediaWiki自己的数据库(默认)或分开的数据替换。 在大多数情况下,每个模板都会将其数据存储在单个数据库表中,每个相关模板参数对应一列。 有少量例外:包含数组/列表以及包含地理位置的字段的处理会更复杂一些,这是因为大多数数据库系统缺乏对这些类型的原生支持。 多个模板也可以将它们的数据存储在同一个数据库表中。
这个扩展定义了许多解析器函数,以下三个最为重要:
#cargo_declare
- 位于模板的<noinclude>
部分,为表定义概要。#cargo_store
- 为Cargo的表存储一行,通常位于模板的<includeonly>
部分。#cargo_query
- 查询一个或多个Cargo数据表,使用SQL组件。
还定义了以下解析器函数:
#cargo_attach
- 定义一个模板加入其他模板声明的行。#cargo_compound_query
- 在一个位置显示多次查询结果。#cargo_display_map
- 显示一个单点的地图。#recurring_event
- 输出反复发生时间的日期,为了#cargo_store使用。
Cargo还定义了各种接口,用于查看和向下钻取此存储的数据。 As such, it adds the following special pages:
- Special:CargoQuery
- Special:CargoTableDiagram
- Special:CargoTables
- Special:Drilldown
Cargo使用MySQL和PostgreSQL数据库系统测试和工作。 理论上也支持SQLite,但是并没有充分测试,而且有可能无法正常工作。
Cargo扩展要求MediaWiki的版本至少为MediaWiki 1.38+。
本页顶部的导航框列举了一些关于Cargo的页面,可以了解更多Cargo的知识,以及如何工作、如何使用和如何安装。
Installation
Configuration
Below are Cargo's global configuration settings along with their default values.
To configure Cargo to use a separate database instead of the MediaWiki database, the following settings are provided:
Separate database configuration settings | ||
---|---|---|
Setting | Default | Description |
$wgCargoDBtype |
null |
Database type. |
$wgCargoDBserver |
null |
Host name or IP address of database server. |
$wgCargoDBname |
null |
Name of the database. |
$wgCargoDBuser |
null |
Database username. |
$wgCargoDBpassword |
null |
The password for $wgCargoDBuser . |
$wgCargoDBprefix |
null |
Database table name prefix. |
$wgCargoDBRowFormat |
null |
Data base row format. |
For character configuration as related to numbers, the following configuring settings are provided:
Character configuration settings | ||
---|---|---|
Setting | Default | Description |
$wgCargoDecimalMark |
. |
Decimal character for numbers. |
$wgCargoDigitGroupingCharacter |
, |
Thousands digit separator. |
The remaining global configuration settings are as follows:
Setting | Default | Description |
---|---|---|
$wgCargoAllowedSQLFunctions |
[] |
Sets allowed SQL functions. See Using SQL Functions for defaults. |
$wgCargoRecurringEventMaxInstances |
100 |
The number of max instances to store for recurring events with no set end date. |
$wgCargoDefaultStringBytes |
300 |
The default number of characters for fields of type Page , String , Wikitext string , File , URL , Email |
$wgCargoDefaultQueryLimit |
100 |
Number of results to show for #cargo_query if no limit is set |
$wgCargoMaxQueryLimit |
5000 |
The maximum allowed number of results for #cargo_query |
$wgCargo24HourTime |
false |
If true uses 24-hour time for Datetime field types. |
$wgCargoDefaultMapService |
OpenLayers |
Sets the default map service to Google Maps, if set to googlemaps , to Leaflet if set to leaflet , and to OpenLayers if set to openlayers . |
$wgCargoGoogleMapsKey |
null |
API key for Google Maps, for the googlemaps display format. |
$wgCargoMapClusteringMinimum |
80 |
If the number of map points displayed is greater than the value of $wgCargoMapClusteringMinimum, the map displays the locations in "clusters" instead of individual points, for readability. If set to a very high number, does not display clustering. |
$wgCargoDrilldownUseTabs |
true |
Displays Special:Drilldown table names as tabs at the top instead of a vertical list at the side. |
$wgCargoDrilldownSmallestFontSize |
-1 |
If set to a positive number, sets the smallest font size, in pixels, for a tag-cloud-style display of filter values. |
$wgCargoDrilldownLargestFontSize |
-1 |
If set to a positive number, sets the largest font size, in pixels, for a tag-cloud-style display of filter values. |
$wgCargoDrilldownMinValuesForComboBox |
40 |
Sets the minimum number of values before their display is converted to a combo box, instead of individual links. |
$wgCargoDrilldownNumRangesForNumbers |
5 |
For fields/filters of type Integer or Float , specifies the number of "buckets" into which values are divided. |
$wgCargoMaxVisibleHierarchyDrilldownValues |
30 |
If set to a positive integer, specifies the maximum number of values shown at a time for any hierarchy field (All the top-level values are shown irrespective of this value). The values are hidden beyond a certain depth of the hierarchy such that the count of total visible values is at most this number. |
$wgCargoTablesPrioritizeReplacements |
false |
If true , all tables having a replacement appear at the top of the Special:CargoTables page, instead displaying them in alphabetical order. |
$wgCargoPageDataColumns |
[] |
The set of fields to store in the _pageData Cargo table. See Storing page data . |
$wgCargoFileDataColumns |
[] |
The set of fields to store in the _fileData Cargo table. See Storing file data . |
$wgCargoHideNamespaceName |
[6] |
Array of namespaces to hide from query results. |
$wgCargoLegacyNullLuaFieldsAsEmptyString |
false |
Null results to the Lua Cargo query function should return as string rather than nil. This allows you to rollback a breaking change from early 2022. New wikis created after this time should not enable this. |
$wgCargoStoreUseTemplateArgsFallback |
true |
Enable the behavior that looks for template arguments that match the template's declared table to fill columns. |
參見
- : – 概览和比较。
- Semantic MediaWiki – 允許在頁面內儲存和查詢數據。
- WikiDB – 提供資料庫功能,有點類似於語義屬性。
- Wikibase – 作为维基数据项目的一部分,允许展示和维护结构性数据。
![]() | 此在以下wiki农场/托管网站和/或软件包中提供:
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