Ionic & ElasticSearch build O2O application
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Overview
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### Background

### ShowCase

### Architecture Design

Steps
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### Step 1: Django GIS

### Step 2: config haystack

### Step 3: Django Haystack Model

### Step 4: create search index

### Step 5: create page

### Step 6: Ionic ElasticSearch Service

### Step 7: Ionic OpenLayer Map

Practise
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