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1.0.0
A foundation for building Elixir Phoenix apps — SaaS, social networks, ERP systems, marketplaces, and more
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Files
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Files
lib/phoenix_kit_web/controllers/blog_html.ex
defmodule PhoenixKitWeb.BlogHTML do
@moduledoc """
HTML rendering functions for BlogController.
"""
use PhoenixKitWeb, :html
alias PhoenixKit.Blogging.Renderer
alias PhoenixKit.Config
alias PhoenixKit.Module.Languages
embed_templates "blog_html/*"
@doc """
Builds the public URL for a blog listing page.
"""
def blog_listing_path(language, blog_slug, params \\ []) do
segments = if single_language_mode?(), do: [blog_slug], else: [language, blog_slug]
base_path = build_public_path(segments)
case params do
[] -> base_path
_ -> base_path <> "?" <> URI.encode_query(params)
end
end
@doc """
Builds a post URL based on mode.
"""
def build_post_url(blog_slug, post, language) do
case post.mode do
:slug ->
segments =
if single_language_mode?(),
do: [blog_slug, post.slug],
else: [language, blog_slug, post.slug]
build_public_path(segments)
:timestamp ->
date = format_date_for_url(post.metadata.published_at)
time = format_time_for_url(post.metadata.published_at)
segments =
if single_language_mode?(),
do: [blog_slug, date, time],
else: [language, blog_slug, date, time]
build_public_path(segments)
_ ->
segments =
if single_language_mode?(),
do: [blog_slug, post.slug],
else: [language, blog_slug, post.slug]
build_public_path(segments)
end
end
@doc """
Formats a date for display.
"""
def format_date(datetime) when is_struct(datetime, DateTime) do
datetime
|> DateTime.to_date()
|> Calendar.strftime("%B %d, %Y")
end
def format_date(datetime_string) when is_binary(datetime_string) do
case DateTime.from_iso8601(datetime_string) do
{:ok, datetime, _} ->
datetime
|> DateTime.to_date()
|> Calendar.strftime("%B %d, %Y")
_ ->
datetime_string
end
end
def format_date(_), do: ""
@doc """
Formats a date for URL.
"""
def format_date_for_url(datetime) when is_struct(datetime, DateTime) do
datetime
|> DateTime.to_date()
|> Date.to_iso8601()
end
def format_date_for_url(_), do: "2025-01-01"
@doc """
Formats time for URL (HH:MM).
"""
def format_time_for_url(datetime) when is_struct(datetime, DateTime) do
datetime
|> DateTime.to_time()
|> Time.truncate(:second)
|> Time.to_string()
|> String.slice(0..4)
end
def format_time_for_url(_), do: "00:00"
@doc """
Pluralizes a word based on count.
"""
def pluralize(1, singular, _plural), do: "1 #{singular}"
def pluralize(count, _singular, plural), do: "#{count} #{plural}"
@doc """
Extracts and renders an excerpt from post content.
Returns content before <!-- more --> tag, or first paragraph if no tag.
Renders markdown and strips HTML tags for plain text display.
"""
def extract_excerpt(content) when is_binary(content) do
excerpt_markdown =
if String.contains?(content, "<!-- more -->") do
# Extract content before <!-- more --> tag
content
|> String.split("<!-- more -->")
|> List.first()
|> String.trim()
else
# Get first paragraph (content before first double newline)
content
|> String.split(~r/\n\s*\n/, parts: 2)
|> List.first()
|> String.trim()
end
# Render markdown to HTML
html = Renderer.render_markdown(excerpt_markdown)
# Strip HTML tags to get plain text
html
|> Phoenix.HTML.raw()
|> Phoenix.HTML.safe_to_string()
|> strip_html_tags()
|> String.trim()
end
def extract_excerpt(_), do: ""
defp strip_html_tags(html) when is_binary(html) do
html
|> String.replace(~r/<[^>]*>/, " ")
|> String.replace(~r/\s+/, " ")
|> String.trim()
end
defp build_public_path(segments) do
parts =
url_prefix_segments() ++
(segments
|> Enum.reject(&(&1 in [nil, ""]))
|> Enum.map(&to_string/1))
case parts do
[] -> "/"
_ -> "/" <> Enum.join(parts, "/")
end
end
defp url_prefix_segments do
Config.get_url_prefix()
|> case do
"/" -> []
prefix -> prefix |> String.trim("/") |> String.split("/", trim: true)
end
end
defp single_language_mode? do
enabled_count =
try do
Languages.enabled_locale_codes()
|> length()
rescue
_ -> 1
end
enabled_count == 1
end
end