Gravy: Created page with "require( 'strict' ) local libraryUtil = require( 'libraryUtil' ) local checkType = libraryUtil.checkType local checkTypeForNamedArg = libraryUtil.checkTypeForNamedArg local p = {} --- Checks if a value is a string and is not empty. --- --- @param value any The value to check. --- @return boolean True if the value is a non-empty string, false otherwise. function p.isNonEmptyString( value ) return type( value ) == 'string' and value ~= '' end --- Checks if a value is..."

2026-06-14T02:19:52Z

Created page with "require( 'strict' ) local libraryUtil = require( 'libraryUtil' ) local checkType = libraryUtil.checkType local checkTypeForNamedArg = libraryUtil.checkTypeForNamedArg local p = {} --- Checks if a value is a string and is not empty. --- --- @param value any The value to check. --- @return boolean True if the value is a non-empty string, false otherwise. function p.isNonEmptyString( value ) return type( value ) == 'string' and value ~= '' end --- Checks if a value is..."

New page

require( 'strict' )

local libraryUtil = require( 'libraryUtil' )
local checkType = libraryUtil.checkType
local checkTypeForNamedArg = libraryUtil.checkTypeForNamedArg

local p = {}

--- Checks if a value is a string and is not empty.
---
--- @param value any The value to check.
--- @return boolean True if the value is a non-empty string, false otherwise.
function p.isNonEmptyString( value )
return type( value ) == 'string' and value ~= ''
end

--- Checks if a value is a table and is not empty.
---
--- @param value any The value to check.
--- @return boolean True if the value is a non-empty table, false otherwise.
function p.isNonEmptyTable( value )
return type( value ) == 'table' and value ~= {}
end

--- Validates input data against a provided schema and constructs a new object.
--- Returns nil if validation fails.
---
--- @param rawData table
--- @param schema DataSchemaDefinition
--- @return table|nil
function p.validateAndConstruct( rawData, schema )
checkType( 'Util.validateAndConstruct', 1, rawData, 'table' )
checkType( 'Util.validateAndConstruct', 2, schema, 'table' )

local newObject = {}

for key, schemaDef in pairs( schema ) do
checkType( 'Util.validateAndConstruct (schema validation for key: ' .. tostring( key ) .. ')', 1, schemaDef,
'table' )
checkTypeForNamedArg( 'Util.validateAndConstruct (schema validation for key: ' .. tostring( key ) .. ')', 'type',
schemaDef.type, 'string' )
if schemaDef.required ~= nil then
checkTypeForNamedArg( 'Util.validateAndConstruct (schema validation for key: ' .. tostring( key ) .. ')',
'required', schemaDef.required, 'boolean', true )
end

local value = rawData[key]

if schemaDef.required and value == nil then
error( 'Input data missing required key: ' .. tostring( key ) )
end

if value ~= nil then
checkTypeForNamedArg( 'Util.validateAndConstruct', tostring( key ), value, schemaDef.type, false )
newObject[key] = value
elseif schemaDef.default ~= nil then
newObject[key] = schemaDef.default
else
if schemaDef.required == false then
newObject[key] = nil
end
end
end

for key, _ in pairs( rawData ) do
if not schema[key] then
error( 'Input data contains extraneous key not defined in schema: ' .. tostring( key ) )
end
end

return newObject
end

--- Helper function to fix arrays from a JSON loaded with mw.loadJsonData.
---
--- @param array table The array to fix.
--- @return table The fixed array.
function p.fixJsonArray( array )
if array == nil then
return {}
end

checkType( 'Util.fixJsonArray', 1, array, 'table' )

local parts = {}
for _, value in ipairs( array ) do
table.insert( parts, value )
end
return parts
end

return p

Module:InfoboxLua/Util - Revision history