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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8'>
<meta http-equiv='X-UA-Compatible' content='IE=edge'>
<title>Ember ERD</title>
<meta name='description' content=''>
<meta name='viewport' content='width=device-width', initial-scale='1'>
<style>
body,
html {
width: 100%;
height: 100%;
}
.models {
/*display: flex;
flex-direction: row;
overflow-x: scroll;
flex-wrap: wrap;*/
display: block;
}
.model {
display: inline-block;
border: 1px solid black;
width: 400px;
// height: 200px;
margin: 20px;
/*display: flex;*/
align-items: center;
justify-content: center;
z-index: 100;
}
.model .name,
.model .attrs,
.model .relations {
width: 30%;
display: inline-block;
padding: 2px;
z-index: 100;
height: 100%;
}
.model .attrs {
border-left: 1px solid black;
border-right: 1px solid black;
min-height: 150px;
}
.model .name {
font-weight: 900;
}
.model .attrs .attr-val {
color: lightgrey;
display: inline-block;
}
.arrow {
position: absolute;
background: black;
width: 40px;
height: 3px;
transform-origin: 0% 50%;
transition: all 100ms cubic-bezier(.8,.5,1,.8);
/*border-radius: 50%/100px 100px 0 0;*/
/*background-image: url("http://www.iconsdb.com/icons/preview/black/arrow-18-xxl.png");
background-size: cover;
background-position: center;*/
z-index: -1000;
}
.arrow:after {
display: block;
content:'';
border-top: 7px solid transparent;
border-bottom: 8px solid transparent;
border-left: 20px solid red;
transform: translate(40px, -5px);
}
.row {
text-align: center;
}
.row.offset .model {
width: 400px;
}
</style>
</head>
<body>
<h1> Ember ERD Model Visualizer</h1>
<div class="models">
<div class='row'><div class="model" data-model="user"
data-belongsTo=""
data-hasMany="pets battles gameStats">
<div class="name">
user
</div>
<div class="attrs">
currency <span class='attr-val'>string')</span><br /> email <span class='attr-val'>string')</span><br /> uid <span class='attr-val'>string')</span><br /> nickname <span class='attr-val'>string')</span><br /> image <span class='attr-val'>string')</span><br /> online <span class='attr-val'>boolean')</span><br /> avatar <span class='attr-val'>string')</span><br />
</div>
<div class="relations">
belongsTo:
<br />
hasMany: pets, battles, gameStats
</div>
</div><div class="model" data-model="pet"
data-belongsTo="user"
data-hasMany="stats battles petStates">
<div class="name">
pet
</div>
<div class="attrs">
name <span class='attr-val'>string')</span><br /> level <span class='attr-val'>number')</span><br /> vertices <span class='attr-val'>number')</span><br /> colour <span class='attr-val'>string')</span><br />
</div>
<div class="relations">
belongsTo: user
<br />
hasMany: stats, battles, petStates
</div>
</div></div><div class='row offset'><div class="model" data-model="battle"
data-belongsTo="state"
data-hasMany="users pets">
<div class="name">
battle
</div>
<div class="attrs">
winnerId <span class='attr-val'>number')</span><br /> loserId <span class='attr-val'>number')</span><br /> winnerEmail <span class='attr-val'>string')</span><br /> loserEmail <span class='attr-val'>string')</span><br /> name <span class='attr-val'>string')</span><br /> challengedEmail <span class='attr-val'>string')</span><br /> challengerEmail <span class='attr-val'>string')</span><br /> status <span class='attr-val'>string')</span><br /> challengerPetId <span class='attr-val'>string')</span><br /> challengedPetId <span class='attr-val'>string')</span><br /> challengerPet <span class='attr-val'>)</span><br /> challengedPet <span class='attr-val'>)</span><br /> currentTurn <span class='attr-val'>number')</span><br /> currentTurnEmail <span class='attr-val'>string')</span><br /> createdAt <span class='attr-val'>string')</span><br />
</div>
<div class="relations">
belongsTo: state
<br />
hasMany: users, pets
</div>
</div></div><div class='row '><div class="model" data-model="state"
data-belongsTo="battle"
data-hasMany="petStates">
<div class="name">
state
</div>
<div class="attrs">
name <span class='attr-val'>string')</span><br /> currentTurn <span class='attr-val'>integer')</span><br />
</div>
<div class="relations">
belongsTo: battle
<br />
hasMany: petStates
</div>
</div></div><div class='row offset'><div class="model" data-model="stat"
data-belongsTo="pet"
data-hasMany="">
<div class="name">
stat
</div>
<div class="attrs">
statType <span class='attr-val'>string')</span><br /> value <span class='attr-val'>number')</span><br />
</div>
<div class="relations">
belongsTo: pet
<br />
hasMany:
</div>
</div><div class="model" data-model="petState"
data-belongsTo="state pet"
data-hasMany="">
<div class="name">
petState
</div>
<div class="attrs">
currentHealth <span class='attr-val'>number')</span><br /> currentAttack <span class='attr-val'>number')</span><br /> currentDefence <span class='attr-val'>number')</span><br /> shield <span class='attr-val'>boolean')</span><br />
</div>
<div class="relations">
belongsTo: state, pet
<br />
hasMany:
</div>
</div><div class="model" data-model="gameStat"
data-belongsTo="user"
data-hasMany="">
<div class="name">
gameStat
</div>
<div class="attrs">
name <span class='attr-val'>string')</span><br /> value <span class='attr-val'>number')</span><br />
</div>
<div class="relations">
belongsTo: user
<br />
hasMany:
</div>
</div><div class="model" data-model="balanceChange"
data-belongsTo=""
data-hasMany="">
<div class="name">
balanceChange
</div>
<div class="attrs">
changeType <span class='attr-val'>string')</span><br /> entryDate <span class='attr-val'>string')</span><br /> value <span class='attr-val'>number')</span><br />
</div>
<div class="relations">
belongsTo:
<br />
hasMany:
</div>
</div>
</div>
<script>
function angle(p1,p2) {
var dx=p2.x-p1.x,
dy=p2.y-p1.y,
c=Math.sqrt(dx*dx+dy*dy),
deg;
deg=(c>0) ? Math.asin(dy/c)/(Math.PI/180) : 0;
deg=(dx>0) ? deg : 180-deg;
return (deg).toFixed(2);
}
function pythagoras(point1, point2) {
return (Math.sqrt(Math.pow(Math.abs(point1.x-point2.x), 2) + Math.pow(Math.abs(point1.y-point2.y), 2)))
}
init = function() {
var arrows = document.getElementsByClassName('arrow');
for (var i = 0; i < arrows.length; i++) {
(function() {
arrows[i].remove();
})()
};
var models = document.getElementsByClassName('model');
var belongsTo, hasMany, modelName;
for (var i =0; i < models.length; i++) {
belongsTo = models[i].dataset.belongsto
hasMany = models[i].dataset.hasmany
modelName = models[i].dataset.model
var divFrom = models[i]
if (hasMany.length !== 0) {
// name is pluralized so remove s to search
var rels = hasMany.split(" ")
for (var j = 0; j < rels.length; j++) {
var toName = rels[j].slice(0, -1);
var divTo = document.querySelectorAll("[data-model='"+toName+"']")[0]
var divFromCoords = divFrom.getBoundingClientRect()
var divToCoords = divTo.getBoundingClientRect()
var divFromCenter = {
"x": divFromCoords.left + divFromCoords.width/2,
"y": divFromCoords.top + divFromCoords.height/2,
}
var divToCenter = {
"x": divToCoords.left + divToCoords.width/2,
"y": divToCoords.top + divToCoords.height/2,
}
// need to figure out where to put arrow,
// if the model from is above model to, then we aim for top of container
// if model from is below to (via top in coords), aim for the bottom of the model container
var newArrow = document.createElement("div");
newArrow.className += "arrow"
newArrow.className += " " + modelName + "_to_" + toName
newArrow.style.top = divFromCenter.y + "px";
newArrow.style.left = (divFromCenter.x) + "px"
// newArrow.style.bottom = divFromCoords.bottom + "px"
// newArrow.style.right = divFromCoords.right + "px";
var deg = angle({"x": divFromCenter.x,
"y": divFromCenter.y
},
{"x": divToCenter.x,
"y": divToCenter.y
});
var distanceForArrow = pythagoras(divFromCenter, divToCenter) + "px"
var prefixTransform = "transform";
newArrow.style[prefixTransform]="rotate(" + deg + "deg)";
newArrow.style.width = distanceForArrow;
document.body.appendChild(newArrow);
if (divFromCoords.top > divToCoords.top) {
// arrow needs to point down
} else {
// arrow needs to point up
}
}
}
}
}
window.onresize = init
init()
</script>
</body></html>