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blog-roll.ts
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blog-roll.ts
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import {Component, OnInit} from '@angular/core';
import {CORE_DIRECTIVES} from '@angular/common';
import {Observable} from 'rxjs/Observable';
import {BlogEntry} from '../domain/blog-entry';
import {BlogService} from '../services/blog-service';
import {MarkdownService} from '../services/markdown-service';
@Component({
providers: [BlogService, MarkdownService],
template: `
<div class="row">
<div id="blog-editor-panel" class="col-sm-12" *ngIf="editing">
<form>
<div class="form-group row">
<label for="blog-title" class="col-sm-2 form-control-label">Title</label>
<div class="col-sm-10">
<input id="blog-title" class="form-control"
type="text" #title [(ngModel)]="blog.title">
</div>
</div>
<div class="form-group row">
<label for="blog-content" class="col-sm-2 form-control-label">Content</label>
<div class="col-sm-10">
<textarea id="blog-content"
class="form-control"
#markdown
(keyup)="render(blog)"
[(ngModel)]="blog.contentMarkdown"></textarea>
</div>
</div>
<button class="btn btn-primary" (click)="saveBlogEntry(blog)">Save</button>
<h3>Content preview</h3>
<div class="jumbotron">
<div [innerHtml]="blog.contentRendered"></div>
</div>
</form>
</div>
<div id="blog-roll-panel" class="col-sm-12" *ngIf="!editing">
<p>
<a (click)="newBlogEntry()">
<i class="glyphicon glyphicon-plus-sign">
Add...
</i>
</a>
</p>
<table class="table table-bordered table-condensed">
<tr>
<th>Actions</th>
<th>Title</th>
<th>Content</th>
</tr>
<tr *ngFor="let blog of blogs">
<td>
<a href="#" (click)="editBlogEntry(blog)">
<i class="glyphicon glyphicon-edit"></i>
</a>
<a href="#" (click)="deleteBlogEntry(blog)">
<i class="glyphicon glyphicon-remove"></i>
</a>
</td>
<td class="table-cell">
<span class="title">{{ blog.title }}</span>
</td>
<td>
<div [innerHtml]="blog.contentMarkdown"></div>
</td>
</tr>
</table>
</div>
</div>
`,
selector: 'blog-roll',
directives: [CORE_DIRECTIVES]
})
export class BlogRoll implements OnInit {
blogs: Array<BlogEntry>;
blog: BlogEntry;
editing: boolean = false;
message: string;
constructor(private blogService: BlogService,
private markdownService: MarkdownService) {
}
ngOnInit() {
return this.loadBlogEntries();
}
refresh() {
this.blog = undefined;
return this.loadBlogEntries();
}
loadBlogEntries() {
this.blogService.getBlogs().subscribe(
(data: Array<BlogEntry>) => {
console.log('blog data arrived', data);
this.blogs = data;
},
(error: Object) => {
console.log('error!', error);
}
);
}
render(blog: BlogEntry) {
if (blog.contentMarkdown) {
blog.contentRendered = this.markdownService.toHtml(blog.contentMarkdown);
}
}
newBlogEntry() {
this.editing = true;
this.blog = new BlogEntry('', '', '', undefined);
}
editBlogEntry(blog: BlogEntry) {
this.editing = true;
this.blog = blog;
}
saveBlogEntry(blog: BlogEntry) {
return this.blogService.saveBlog(blog)
.subscribe( () => {
this.editing = false;
this.blog = null;
},
(err) => {
alert(`Blog save failed. ${err}`);
},
() => {
this.refresh();
});
}
deleteBlogEntry(blog: BlogEntry) {
if (confirm(`Are you sure you want to delete this blog entry (${blog.title})?`)) {
this.blogService.deleteBlogEntry(blog.id)
.subscribe(
() => {
this.loadBlogEntries();
this.blog = undefined;
},
(err) => {
alert(`Delete failed. Reason: ${err}`);
});
}
}
clearMessage() {
this.message = undefined;
}
}