Vue-meta: Merge default Metadata

[cannap]

Hi, i have a idea for Defaults

As example

In my app.vue i have

metaInfo: {
    title: 'Renka',
    meta: [
      {
        name: 'description', content: 'bar'
      },
      {
        property: 'og:title',
        content: 'Default'
      },
      {
        property: 'og_sitename',
        content: 'Default'
      },
      {
        property: 'og:image',
        content: 'Default'
      }
    ]
  }

and when i open my Home.vue
which comes from <router-view></router-view> in my App.vue

  metaInfo: {
    title: 'Home',
    meta: [
      {
        name: 'description', content: 'bar'
      },
      {
        property: 'og:title',
        content: 'Test'
      },
      {
        property: 'og:image',
        content: 'Test'
      }
    ]
  },

Will overwrite my whole meta tags and og_sitename is gone

i could just make my own function which will merge both objects but then i need todo this over and over
i think a i simple solution would be pass the defaults via Options or something i would do a Pr but yea.. my js is not the best :P
awesome plugin! 💃

[zspecza]

That shouldn't be happening and is not how it works in the app I use to test vue-meta, but I do spot something wrong with your code. Try this:

App

metaInfo: {
    title: 'Renka',
    meta: [
      {
        vmid: 'description',
        name: 'description',
        content: 'bar'
      },
      {
        vmid: 'og:title',
        property: 'og:title',
        content: 'Default'
      },
      {
        vmid: 'og_sitename',
        property: 'og_sitename',
        content: 'Default'
      },
      {
        vmid: 'og:image',
        property: 'og:image',
        content: 'Default'
      }
    ]
  }

Home

metaInfo: {
    title: 'Home',
    meta: [
      {
        vmid: 'description',
        name: 'description',
        content: 'bar'
      },
      {
        vmid: 'og:title',
        property: 'og:title',
        content: 'Test'
      },
      {
        vmid: 'og:image',
        property: 'og:image',
        content: 'Test'
      }
    ]
  }

vue-meta needs to know which tags are related and need to be overriden - it does this by checking which tags share the same vmid.

[cannap]

thx, i tested,
i got same Result as before og_sitename is gone

Defaults which includes the og_sitename with vmid
From my app.vue

 metaInfo: {
            title() {
                return defaultMeta.metaInfo.title  //points to my title from a other js file
            },
            meta() {
                return defaultMeta.metaInfo.meta //points to my meta from a other js file wich includes sitename
            }
        },

Any in my Home which has no og_sitename in the meta
i have

     metaInfo: {

            title() {
                return this.locals.metaInfo.title
            },
            meta() {
                return this.locals.metaInfo.meta
            }

        },

i throught i fixed but i was on the wrong site xD

[cannap]

i found something
When i use

   meta: [
                {
                    vmid: 'description',
                    name: 'description',
                    content: 'bar'
                },
                {
                    vmid: 'og:title',
                    property: 'og:title',
                    content: 'Test'
                },
                {
                    vmid: 'og:image',
                    property: 'og:image',
                    content: 'Test'
                }
            ]

In my Home then its works but when i use meta() {} as function then it overwrites

[zspecza]

@cannap that's a bug - I'll do a little test later to see if I can reproduce it. Thanks!

[cannap]

awesome :D

[zspecza]

I have some good news @cannap!

This bug has been fixed - _but_ it's a breaking change. That being said, update to the new version:

$ npm update vue-meta

Then change your metaInfo to look like this:

{
  metaInfo () {
    title: this.title,
    meta: [{ vmid: 'og_sitename', name: 'og_sitename', content: 'Test' }]
  }
}

[cannap]

nvm

[Atinux]

Actually it seems that I have the same behaviour as @cannap
Is this issue resolved and is there test associated to it @declandewet ?

[cannap]

@Atinux for me is resolved i will try later again and check but for now its just works

[zspecza]

@Atinux it _should_ be resolved. However, there are no tests. I do plan on adding test cases for everything, but I have today, tomorrow and Monday to study for a very important exam I'm writing on Tuesday so I will only be adding these tests after then.

In the meantime, post your code here and I'll see if I can spot anything you might be doing wrong :)

[Atinux]

I found the bug when vmid is _undefined_, I added the check in #19

So I was not doing anything wrong :)