fixed #7, javascript filter for pongo2 with context in this variable

.gitmodules

@@ -52,3 +52,9 @@
 [submodule "vendor/github.com/russross/blackfriday"]
 	path = vendor/github.com/russross/blackfriday
 	url = https://github.com/russross/blackfriday
+[submodule "vendor/github.com/robertkrimen/otto"]
+	path = vendor/github.com/robertkrimen/otto
+	url = https://github.com/robertkrimen/otto
+[submodule "vendor/gopkg.in/sourcemap.v1"]
+	path = vendor/gopkg.in/sourcemap.v1
+	url = https://gopkg.in/sourcemap.v1

helper/template_filters.go

@@ -1,12 +1,21 @@
 package helper
 
 import (
+	"io/ioutil"
+	"path"
+	"strings"
+
 	"github.com/flosch/pongo2"
 	_ "github.com/flosch/pongo2-addons"
+	"github.com/robertkrimen/otto"
+	_ "github.com/robertkrimen/otto/underscore"
 )
 
 func init() {
-	pongo2.ReplaceFilter("markdown", MarkdownFilter)
+	err := pongo2.ReplaceFilter("markdown", MarkdownFilter)
+	if err != nil {
+		panic(err)
+	}
 }
 
 // MarkdownFilter is a pongo2 filter, which converts markdown to html
@@ -19,3 +28,59 @@ func MarkdownFilter(in *pongo2.Value, param *pongo2.Value) (*pongo2.Value, *pong
 				))),
 		nil
 }
+
+func RegisterFilters(dir string) {
+	files, err := ioutil.ReadDir(dir)
+	if err != nil {
+		Log.Panicf("could not read from template filters dir '%s': %s", dir, err)
+	}
+	for _, f := range files {
+		if !f.IsDir() {
+			switch path.Ext(f.Name()) {
+			case ".js":
+				jsFile := dir + "/" + f.Name()
+				Log.Debugf("trying to register filter from: %s", jsFile)
+				jsStr, err := ioutil.ReadFile(jsFile)
+				if err != nil {
+					Log.Panicf("could not read '%s': %s", jsFile, err)
+				}
+				vm := otto.New()
+				fn, err := vm.Run(jsStr)
+				if err != nil {
+					Log.Panicf("error in javascript vm for '%s': %s", jsFile, err)
+				}
+				if !fn.IsFunction() {
+					Log.Panicf("%s does not contain a function code", jsFile)
+				}
+
+				err = pongo2.RegisterFilter(
+					strings.TrimSuffix(f.Name(), ".js"),
+					func(in, param *pongo2.Value) (out *pongo2.Value, erro *pongo2.Error) {
+						thisObj, _ := vm.Object("({})")
+						if currentContext != nil {
+							thisObj.Set("context", *currentContext)
+						}
+
+						if err != nil {
+							Log.Panicf("could not set context as in '%s': %s", jsFile, err)
+						}
+						ret, err := fn.Call(thisObj.Value(), in.Interface(), param.Interface())
+						if err != nil {
+							Log.Panicf("error in javascript file '%s' while calling returned function: %s", jsFile, err)
+						}
+						retGo, err := ret.Export()
+						if err != nil {
+							Log.Panicf("export error for '%s': %s", jsFile, err)
+						}
+						return pongo2.AsValue(retGo), nil
+					},
+				)
+				if err != nil {
+					Log.Panicf("could not register filter from '%s': %s", jsFile, err)
+				}
+
+			}
+		}
+	}
+
+}

main.go

@@ -120,7 +120,9 @@ func main() {
 
 	//spew.Dump(navMap)
 
-	helper.SetTemplateDir(*inDir + "/templates")
+	templateDir := *inDir + "/templates"
+	helper.SetTemplateDir(templateDir)
+	helper.RegisterFilters(templateDir + "/filters")
 	helper.ProcessContent(contentConfig, contentConfig)
 
 	helper.ProcessAssets()

vendor/github.com/robertkrimen/otto

@@ -0,0 +1 @@
+Subproject commit 15f95af6e78dcd2030d8195a138bd88d4f403546

vendor/gopkg.in/sourcemap.v1

@@ -0,0 +1 @@
+Subproject commit 6e83acea0053641eff084973fee085f0c193c61a

website/project-files/css/main.css

@@ -193,7 +193,6 @@ label {font-weight:600;}
 }
 
 
-.boxen {}
 .boxen .col-sm-6 {padding:15px;}
 .box {
 	height:100%;
@@ -280,3 +279,12 @@ code.language-mermaid svg {
 	margin-right: auto;
 	display: block;
 }
+
+.datum {
+	background-color: #2e2e2e;
+	padding: 5px;
+	font-size: 0.5em;
+	border-radius: 5px;
+	display:inline-block;
+	color: #fff;
+}

website/templates/base_blog.html

@@ -4,8 +4,8 @@
     {{ Body }}
     {% for e in fnRequest("https://cockpit.basiscms.de/api/collections/get/mark2webBlog?filter[published]=true&sort[date]=-1&limit=1").entries %}
         <h2>
-            <small>{{ e.date }}</small>
             {{ e.title }}
+            <div class="datum">{{ e.date|datum }}</div>
         </h2>
         {{ e.teaser|markdown }}
         {% if e.body %}
@@ -21,8 +21,8 @@
     {% endcomment %}
     {% for e in fnRequest("https://cockpit.basiscms.de/api/collections/get/mark2webBlog?filter[published]=true&sort[date]=-1&skip=1&limit=100").entries %}
         <h2>
-            <small>{{ e.date }}</small>
             {{ e.title }}
+            <div class="datum">{{ e.date|datum }}</div>
         </h2>
         {{ e.teaser|markdown }}
         {% if e.body %}

website/templates/base_blog_details.html

@@ -2,8 +2,8 @@
 
 {% block part0 %}
     <h1>
-        <small>{{ Data.details.date }}</small>
         {{ Data.details.title }}
+        <div class="datum">{{ Data.details.date|datum }}</div>
     </h1>
     {{ Data.details.teaser|markdown }}
 {% endblock part0 %}

website/templates/filters/datum.js

@@ -0,0 +1,13 @@
+function datum(str, param) {
+    if (!param) {
+        param = "$3.$2.$1";
+    }
+
+    /*
+    this.context.Meta.Title ist hier z.B. möglich
+    */
+
+    return str.replace(/^([0-9]+)[^0-9]+([0-9]+)[^0-9]+([0-9]+).*/, param)
+}
+
+datum;