Access site.data files/data from within a helper function

[lorezyra]

I'd like to access the site.data object from inside a helper function. Can you recommend how that is done?

Example code:

hexo.extend.helper.register('post_edit', function(src) {
  const { post_edit } = this.theme;
  if (!post_edit.enable) return '';
  return this.next_url(post_edit.url + src, '<i class="fa fa-pen-nib"></i>', {
    class: 'post-edit-link',
    title: this.__('post.edit', site.data.myDataFile[myvar])
  });
});

Currently, I'm getting the error site is undefined which makes sense as I don't see the var in the live data of VScode debugger. However, I don't see the site nor the data objects either. Do I need to load a class or library? Or, should I use a simple require() to /source/_data/myDataFile.json?

Related

• https://github.com/orgs/hexojs/discussions/5190

[D-Sketon]

try this.site.data ?

[lorezyra]

I suppose I could workaround this and add an argument to the function siteData and pass that data via the function call in the EJS template like this:

<%- post_edit(src, site.data.myDataFile) %>

But I was wondering if I could access it directly from inside the helper.

[D-Sketon]

like this?

I think this variable should be able to get theoretically

[D-Sketon]

maybe you can try

hexo.extend.helper.register('post_edit', function(src) {
  const _this = this;
  const { post_edit } = this.theme;
  if (!post_edit.enable) return '';
  return this.next_url(post_edit.url + src, '<i class="fa fa-pen-nib"></i>', {
    class: 'post-edit-link',
    title: _this.__('post.edit', _this.site.data.myDataFile[myvar])
  });
});

[lorezyra]

Hmm, this could be a case of scope issues. I tend to define the function separately and then use the function name in the register() process.

const __ = this.__;
const llogo = this.site.data._license_CC_Logos;

// supporting functions...

function generateCopySection(copy, origin) {
  // Process the front-matter data
  let {
    copyFinal,
    originFinal
  } = processParams(copy, origin, this); //fix scoping problem by passing `this`

  console.log(llogo);
  
  // Init "CopyGenerator" class with the processed data
  let copySection = new CopyGenerator(copyFinal, originFinal, this);

  // Return the built copyright section
  return copySection.getCopySection();
}

hexo.extend.helper.register('copyLicense', generateCopySection);
});

[lorezyra]

I've tried using:

hexo.log.info(`SITE DATA:  ${JSON.stringify(this.site.data)}`);

but I continue to get data is undefined...

[stevenjoezhang]

You can try hexo.locals.get('data')

[lorezyra]

I see an empty object in the console.

In VScode debugger, the Watch panel doesn't show thesite.data object. I'm thinking helpers don't have access to it. Or, I'm missing something.

Notes

Running Hexo 6.3 on NodeJS 19

[stevenjoezhang]

Emm, you should put it inside a helper function