Module:GetJSON: Difference between revisions
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-- Create a Lua module named "p" |
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local p = {} |
local p = {} |
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-- Define the main function of the module |
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p.main = function(frame) |
p.main = function(frame) |
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-- Create a local table "m" to store data |
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local m = {} |
local m = {} |
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-- Load JSON data from the first argument passed to the module |
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m.root = mw.loadJsonData(frame.args[1]) |
m.root = mw.loadJsonData(frame.args[1]) |
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-- Function to split |
-- Function to split a key string by "." |
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local function splitKey(key) |
local function splitKey(key) |
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local keys = {} |
local keys = {} |
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-- Split the key string by "." |
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for subkey in string.gmatch(key, "([^%.]+)") do |
for subkey in string.gmatch(key, "([^%.]+)") do |
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-- Insert each subkey into the keys table |
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table.insert(keys, subkey) |
table.insert(keys, subkey) |
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end |
end |
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return keys |
return keys -- Return the keys table |
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end |
end |
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-- Function to get the value from the nested table |
-- Function to get the value from the nested table using keys |
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local function getValueByKeys(root, keys) |
local function getValueByKeys(root, keys) |
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local value = root |
local value = root |
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-- Iterate through each key |
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for _, key in ipairs(keys) do |
for _, key in ipairs(keys) do |
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-- Check if the key is numeric |
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if tonumber(key) then |
if tonumber(key) then |
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key = tonumber(key) |
key = tonumber(key) -- Convert numeric key to number |
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end |
end |
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-- Check if the value associated with the key is nil |
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if value[key] == nil then |
if value[key] == nil then |
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return nil |
return nil -- Return nil if value is nil |
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end |
end |
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value = value[key] |
value = value[key] -- Update value to the nested table |
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end |
end |
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-- If the value is a table and contains json_file and json_key |
-- If the value is a table and contains json_file and json_key |
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if type(value) == "table" and value.json_file and value.json_key then |
if type(value) == "table" and value.json_file and value.json_key then |
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-- Load JSON data from the specified file |
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local newRoot = mw.loadJsonData(value.json_file) |
local newRoot = mw.loadJsonData(value.json_file) |
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-- Split the json_key string |
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local newKeys = splitKey(value.json_key) |
local newKeys = splitKey(value.json_key) |
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-- Recursively call this function with new data |
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return getValueByKeys(newRoot, newKeys) |
return getValueByKeys(newRoot, newKeys) |
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end |
end |
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return value |
return value -- Return the final value |
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end |
end |
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-- Split the key provided in the second argument |
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local keys = splitKey(frame.args[2]) |
local keys = splitKey(frame.args[2]) |
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-- Get the value from the nested table using the keys |
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local value = getValueByKeys(m.root, keys) |
local value = getValueByKeys(m.root, keys) |
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-- If the value is not nil |
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if value ~= nil then |
if value ~= nil then |
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-- If the value is a table |
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if type(value) == "table" then |
if type(value) == "table" then |
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-- If the fourth parameter is "keys" |
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if frame.args[4] == "keys" then |
if frame.args[4] == "keys" then |
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-- Return |
-- Return keys of the table |
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local str = "" |
local str = "" |
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for k, _ in pairs(value) do |
for k, _ in pairs(value) do |
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return frame:preprocess(str:sub(1, -2)) |
return frame:preprocess(str:sub(1, -2)) |
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else |
else |
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-- Return |
-- Return values of the table |
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local str = "" |
local str = "" |
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for _, v in pairs(value) do |
for _, v in pairs(value) do |
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end |
end |
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end |
end |
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return frame:preprocess(value) |
return frame:preprocess(value) -- Return the value |
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else |
else |
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-- If the third argument is not nil, return it |
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if frame.args[3] ~= nil then |
if frame.args[3] ~= nil then |
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return frame.args[3] |
return frame.args[3] |
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else |
else |
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return "" |
return "" -- Return an empty string if no value is found |
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end |
end |
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end |
end |
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end |
end |
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-- Return the module table "p" |
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return p |
return p |
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