Module:CopyEmbeddedStories

This module extracts all instances of the `EmbeddedStory` template from a specified source page. It is useful for retrieving and reusing embedded story elements across different pages in a MediaWiki environment.

Usage

The module can be invoked using `#invoke` in a template or wiki page.

{{#invoke:CopyEmbeddedStories|fetchEmbeddedStories
 | sourcePage=ExamplePage
}}

Parameters

• `sourcePage` - The title of the wiki page from which `EmbeddedStory` templates should be retrieved.

Behavior

1. The module reads the raw wikitext content of the specified `sourcePage`. 2. It searches for all instances of `Template:EmbeddedStory ...` within the page. 3. The found templates are returned as a newline-separated list. 4. If the page is not found or empty, an error message is returned.

Example Output

If `ExamplePage` contains:

{{EmbeddedStory|Title=Story 1}}
Some text here.
{{EmbeddedStory|Title=Story 2}}

Then the module will return:

{{EmbeddedStory|Title=Story 1}}
{{EmbeddedStory|Title=Story 2}}

Notes

• The module does not modify the extracted templates; it simply returns them as raw wikitext.
• If no `EmbeddedStory` templates are found, it returns an empty string.
• If `sourcePage` is not specified, an error message is displayed.

---

-- Module:CopyEmbeddedStories
local p = {}

-- [Previous helper functions remain the same]
-- Helper function to extract all EmbeddedStory templates from text
local function extractEmbeddedStories(text)
    local stories = {}
    -- Match all EmbeddedStory templates
    for story in mw.ustring.gmatch(text, "{{EmbeddedStory.-}}") do
        table.insert(stories, story)
    end
    return stories
end

-- Helper function to append templates to a page
local function appendToPage(title, templates)
    local page = mw.title.new(title)
    if not page then return false, "Invalid page title" end
    
    local status, err = pcall(function()
        local pageText = mw.text.trim(mw.title.new(title):getContent() or "")
        -- Add a newline if the page isn't empty
        if pageText ~= "" then
            pageText = pageText .. "\n\n"
        end
        -- Append all templates
        for _, template in ipairs(templates) do
            pageText = pageText .. template .. "\n"
        end
        
        -- Save the page
        local success = page:update({
            text = pageText,
            summary = "Copied EmbeddedStory templates",
            minor = false
        })
        if not success then
            error("Failed to save page")
        end
    end)
    
    return status, err
end

-- Main function to copy templates
function p.copyTemplates(frame)
    local sourcePage = frame.args[1]
    local targetPage = frame.args[2]
    
    if not sourcePage or not targetPage then
        return "Error: Source and target pages must be specified"
    end
    
    -- Get source page content
    local sourceTitle = mw.title.new(sourcePage)
    if not sourceTitle then
        return "Error: Invalid source page title"
    end
    
    local sourceContent = sourceTitle:getContent()
    if not sourceContent then
        return "Error: Could not read source page"
    end
    
    -- Extract templates
    local stories = extractEmbeddedStories(sourceContent)
    if #stories == 0 then
        return "No EmbeddedStory templates found on source page"
    end
    
    -- Copy templates to target page
    local success, err = appendToPage(targetPage, stories)
    if not success then
        return "Error copying templates: " .. (err or "unknown error")
    end
    
    return string.format("Successfully copied %d templates to %s", #stories, targetPage)
end

-- Function to generate form
function p.showForm(frame)
    local currentPage = mw.title.getCurrentTitle().text
    
    local html = string.format([[
<div class="template-copy-form">
<h3>Copy Embedded Stories</h3>
<div style="margin: 10px 0;">
<input type="text" id="targetPage" placeholder="Enter target page name" style="width: 300px; padding: 5px;"/>
<button onclick="copyTemplates()" style="margin-left: 10px; padding: 5px 10px;">Copy Stories</button>
</div>
<div id="copyResult" style="margin-top: 10px;"></div>
</div>

<script type="text/javascript">
function copyTemplates() {
    var targetPage = document.getElementById('targetPage').value;
    if (!targetPage) {
        mw.notify('Please enter a target page name');
        return;
    }
    var currentPage = %s;
    
    new mw.Api().post({
        action: 'parse',
        text: '{{#invoke:CopyEmbeddedStories|copyTemplates|' + currentPage + '|' + targetPage + '}}',
        contentmodel: 'wikitext'
    }).done(function(response) {
        mw.notify(response.parse.text['*']);
        document.getElementById('copyResult').innerHTML = response.parse.text['*'];
    }).fail(function(error) {
        mw.notify('Error copying templates');
        document.getElementById('copyResult').innerHTML = 'Error copying templates';
    });
}
</script>
]], mw.text.jsonEncode(currentPage))

    return frame:preprocess(html)
end

return p