How to get struct in array

Hello, how do I get struct in array ? please see my pic :

I need to get the struct’s params , like this : a.cms_post.title

My output is :

[
  %TrangellCmsService.Cms.Db.Post{
    __meta__: #Ecto.Schema.Metadata<:loaded, "cms_post">,
    changelog: true,
    changelog_category: "/ss/ppos",
    cms_post_category: #Ecto.Association.NotLoaded<association :cms_post_category is not loaded>,
    cms_post_category_id: "960c30f2-183e-4430-a96d-4f0fd41fe37b",
    description: "test test test test test test tetststststss tskkkstest of test fo test of test more test more test for test for test tes",
    discourse: true,
    discourse_link: "/ss/ppos",
    download_ext_link: "/ss/ppos", 
    group_acl: "admin",
    id: 6,
    inserted_at: ~N[2018-04-29 11:45:05.311436],
    learn: true,
    learn_category: "/ss/ppos",
    pic_x1_link: "/ss/ppos",
    pic_x2_link: "/ss/ppos",
    pic_x3_link: "/ss/ppos",
    plugin: true,
    plugin_category: "/ss/ppos",
    post_type: "free",
    price: "30000",
    screen_shot: false,
    screen_shot_category: "/ss/ppos",
    seo_alias_link: "7seo-why-seo",
    seo_description: "for the test for test for test for test tete of test",
    seo_language: "fa",
    seo_language_link: "/ss/ppos",
    seo_tag: "test,test,test,test",
    seo_words: "test,test,test,test",
    status: true,
    title: "shahryar",
    updated_at: ~N[2018-04-29 11:45:05.311884]
  }
]